Hello handsome. Good morning. Handsome. Mm-hmm. What do you want me to call you? Sexy? Sexy boyfriend Who deserves everything in the world? Oh, yeah, that you should like get a motorcycle.  I don't crash on it. I don't crash in a car. I rebuke it in Jesus I don't crash in a car like I can control the bike. No, I had a bike before No, you didn't bro. When I lived in New York.  You were like riding around in dirt.  We're going off ramps all that okay Well, you can't have one now What's going on if in a fam? I just want a bike. Oh my goodness. Welcome back to another video So today we have a little Grocery kind of video for you. So we're gonna go to Trader Joe's or Whole Foods I'm not sure which one because there's a Whole Foods that's two floors Exactly. That's what we're going to Whole Foods and that's very enticing I'm gonna get a shopping cart You can hop in the shopping cart and then we go like ramp off the second floor. What is wrong? This guy this guy There's something wrong with him.   You should have seen what I did in my car yesterday I don't want to know but anyway, we're going to just basically show you guys like what we eat and All the healthy stuff that we've been eating lately. We've been eating clean for a little while now I would say we're going on what two weeks. That's I had Chinese food last night Okay, well just me then I've been eating clean for about two weeks and I'm kind of proud of myself I know it's not that long, but you know, it's it'd be hard out here. I've been eating cleaner kind of well I won't I feel like I'm still eating like junk, but I'm not eating as much junk And sorry seatbelt on you adrenaline junkie I'm not an adrenaline junkie you started driving before I even got the chance to pull my seatbelt on You don't put on a seatbelt, but I can't get a bike. That's crazy. No, I always wear my seatbelt I was just talking to you guys. So obviously I couldn't use both hands Saying I've been eating like junk, but I've been putting in mad work when it goes to working out True, like I've been doing a lot of core workouts a lot of like upper body at the legs I can't even like sit in the toilet right no more because my legs hurt. All right TMI It's it's facts. It's just strength training. So anyway, we are about to go and I Show you guys everything that we're gonna get and stuff like that. Yeah, just spend the day with us. I'm excited. Are you Depends on what if you let me do the shopping cart at Whole Foods, then I'll be excited. Oh my gosh All right, we'll see you guys when we get there. So we got here and You still don't think I could get a bike babe. Can we see what's the bike? What's the issue? Just stop with the topic. What's the issue if I if I trade the car in for a bike I'll have a less monthly payment. I don't care about that. I want your safety That's what I care about if we're being honest and your reckless if we're being honest here I'm not safe in a car or on a bike. So just Anyway, we made it here to Whole Foods and honestly, it's pretty packed Lizzy will be here. This area is just critical and I told him cuz like I wanted to come sooner But he's like now you want it on a Saturday on a Saturday. She wanted to come in this would have been worse Nah, it was a Friday actually and it was like late.  Oh, okay So then he loves just blaming everything on me. Oh, you know what? Yeah. Yeah.  She grabbed some peppers some scallions. I think this is cilantro We got some what the hell is this Sarah's what one? Organic cherries what language is that? Sarissi's biologies. Can you pronounce this? No, all right, so I'm not crazy What you looking for now? I don't know.  Oh, this is bougie. I don't know any of this is what this Kale You won't be needing that soon why because I'm growing it at home. I know guys we got a honeydew plant I got mango trees. I got avocado trees. I got a pumpkin plant. Oh my god. We're about to have our own farm Yeah, I'm so excited now a lot of you guys are probably asking. Oh, what happens to the blueberry tree? Blueberry tree died. I got another one I killed two of them I don't know what this is, but it looks interesting. Let me know if I should get it next time. It's called a saffodilla I used to eat those as a kid I'm serious. What is it? It's a potato, but it's a fancy word for potato But is it sweet or I'm joking. I don't even know why you're taking me serious Oh, why not cuz this is like buy all the sweet stuff. I don't know what this is. It's soft, too We get one just to try it. No, I'm good off that. All right, give it a try if you want. Oh, let's get a dragon fruit If I get dragon fruit I'm putting Starbucks out of business This is don't even look. No, it's not like poison. No, it's good. It's delicious. When did you have that babe? This is um, like leechy Remember when you got me the exotic fruits the box.  I gotta bite it with the spikes Yeah, you bite it open and it comes out. No, I'm good. Oh my gosh. Wait groaning Guatemala. Mm-hmm. All right, I'll try it Do I get the bananas green or right this this Licker that's not what's bigger. Oh, no, what that was but it was toxic toxic. Oh, here we go I could have got sick. You got to put it in a bag, babe Why? Guys, I've been feasting for these protein shakes of this coil coil. Where are we going to play quiet? Shout out Milo Shout out Milo boy finally made it.  These are like my favorite. I'm getting like 10 of these I'm not lying. Get like all the strawberry banana. I mean strawberry banana. That's for you. How many do you want? That's enough. Three for you? Yeah, I'm gonna get two for me. Okay, and I'm getting mad coping up. Here he is Cuz I'm an island boy.  I'm an island boy It's probably has to be Janice's like favorite aisle like we're like all the Asian stuff like the noodles and the sauces and the ramen Trying to find gluten-free ramen if I could find gluten-free ramen, that'll be awesome I missed the ramen that we used to eat back in Jersey Me too Guys we used to go to the spot called Mr. Ramen and they had like the spiciest ramen ever and it had like chicken in it And it was just so freaking good and you should make it for dinner one day The ramen that we used to have I missed the ramen I gotta find a recipe for that.  I can't get ramen bro. What kind of life am I living? This gotta be your favorite aisle. Why? Cuz these were all the nuts or No, it's your favorite aisle. Whoa. Whoa. Whoa. Whoa. I was saying cuz you're crazy. No, no, no, that's your dirty line Whoa, whoa, whoa take it easy there, buddy. You're way out of line pal You're way out of line pal news flash buddy There was an old lady here in the nut aisle and I'm pretty sure she heard it's talking about the nuts and then she just left I think we made her uncomfortable. Janice over here throwing like nut jokes and all that she needs to grow up He definitely started it. That was not me. How did I start? I did start it I just found the best thing Whole Foods ever made. Jerk, chicken wings, brah. If these don't slap I'm never coming back to Whole Foods again because the jerk chicken is like my favorite Our car is full and we haven't even gone upstairs yet. You said what? We're not going upstairs. Maybe not brah. I came here to see upstairs Dang right we're going upstairs Yo, Whole Foods is the biggest scam ever. Why upstairs? There's nothing up there. It's a parking garage I know it too. I was like I see like all the cars up there. I'm like, I don't think it's a second floor I think it's just a garage.   Yeah, I'm starving I'm starving too. I don't remember what they have here though.   He's got some Maki-maki tacos. I've never had mahi-mahi before I don't know why I'm doing this to myself because I'm not a fish person. It looks good. It does look good I'm scared for mine. So I completely forgot that we had groceries in the trunk of my car Yeah, it's a good thing that you remembered Cuz I think we're eating pretty fast though. Yeah, I was like, okay, so we have to hurry up and eat because We have to get the groceries.  Where's my car? I always lose my car I told you it's on that side. You think so. Mm-hmm. You want to drive home? No, there she is What a view Wow This is mine, right? I didn't even peep this was behind me. Jenny saw it. Oh my god. So fire How do you feel about the rims? I like them. I love rose gold. So I think that's the perfect touch Bro get out the way. Oh my god Poor guy. They missed you my angel, my baby boy. Oh my goodness.  Oh my gosh. I love you, Papas. You missed mommy, didn't you? You missed mommy so much Yep, cuz then it loves me and he missed me.  Oh Wait, wait. Hey, roll over Roll over roll over with mommy cuz he was mommy, right? Hmm. I love you All right, so as you can see it We just got home and it was pouring on our way back home And I think that it rains a little bit, but I think it's gonna rain more.  So he's like grabbing them. He's like, no my pots But yeah, I'm about to show you guys everything that we got and we're home As you can see so you want to start first or like how do you want to do this and show them what we got? Let's just show them in general You want to pick up the camera kind of go live through this? Sure. All right before we start with anything We're just gonna show you all these drinks that this is 100% my fault There's so many freaking protein shakes in there, but guys I promise you they're so fire It's my fault because I put him on you did so it is your fault I mean we used to drink Olen shakes and I wish that they had like more of a variety because the nutrition is like kind of the same so I started drinking these and That's bomb like I like I said the chocolate banana Slaps, but anyway, hey, you mister What he's that what you got for me? Number distractions started off with two avocados not a lot because we like the bigger ones and These are kind of small so we'll get these at another spot And then we have the mini sweet peppers I literally eat these with almost every meal and then we have some cherries Those are a good thing to snack on and then I got this. It's like green butter petit sweet and crunchy That's what it's a hell. Why it's lettuce. I think what the hell I just saw greens and I said I saw butter, baby, and I just grab it. Why these greens trying to seduce me chill We got some asparagus and I also got some mint cuz I want to make like a little ginger mint mocktail with cucumbers So good, so I got that for that then some chicken sausage for breakfast I also got some chicken burgers just in case cuz we're always on the go So that would be something we can like let us wrap and eat really quickly before we like head out Then I got some fob raw because Isaiah loves Faw and like there's a Vietnamese place around here so fire He literally tries to go there every single day to eat so let me know I am going to try to make Did you know off home? Did you know that if you go to the fob place and you spend at $10,000 within a month they put you on the wall Like they take a picture and they put you on the wall.  That's crazy. I'm thinking about doing it And I know you would it's fire continuing. We have the strawberries Frozen obviously so I can put them in shakes then we got these actually want to try these on camera with Isaiah I want to make her try it cuz he's so scared of them. I'm not doing that today I feel like they taste like sweet grapes. I gotta muster up the strength to eat that Why hey, bro, that looks like Matt spiky like it's literally not that serious You just take that off. This looks like if a porcupine like use the bathroom. Oh my gosh And it may be good it may be good like but still it looks like scary. It's not scary I got some chives. I also got some fresh cilantro bananas because I'm letting this one here I'm letting this one get like, you know soggy and stuff. It's like staining my thing I had to make banana bread.  You couldn't just wait until I grew you one. No, that's gonna be like months from now, bro Oh my god, that's the honeydew plant.  You can't wait three months. No, it's called impatient, baby No, let me finish showing them what we got. So we got some peeled garlic already Isaiah wanted to try these coconut snacks guys. Tell me that doesn't look fire Coconut toasted snack crackers, baby, you know that that chocolate doesn't come on it, right? It's just a cracker I am aware I am aware. I feel like that would have been a deal breaker for you. No, I'm aware from these. They're um, very healthy They're pizza flavor crackers. So that might be good with some red pepper hummus or something Don't be don't be hating on the red pepper hummus and then we got some tomates And we also got some lemon And then the rest of everything is just literally almond milk and like coconut milk nothing crazy oils Some oils and then I'm so excited to try these teas I need to start drinking teamwork because it's the only thing that makes my stomach happy So I got all of these to help when I'm stressed to help me sleep And yeah to help my digestive system, but then this I got for Isaiah Bro, it's so fire.  Yeah, let me know how they taste I know this is gonna be spicy. So I unfortunately will not be trying it But yeah guys, so that is everything that we got. I feel like it was a successful trip For Whole Foods. Would you do it again? Can you hold this? Oh my god. Would you do it again, babe? Yes You'll go back to Whole Foods Somebody needs to be shaking up a bit Yeah, I go back to Whole Foods, but they're a scam because that second floor is literally a parking garage It's not a scam. It's a scam. No, it's not. There should be a sign up there that says parking garage Oh my god Ask him what he preferred if he preferred Trader Joe's or Whole Foods and he said Whole Foods Bro Trader Joe's is way too small for me Like I bump into everybody like mad grandma's almost caught the work in Trader Joe's like I can't stand people I love Trader Joe's Trader Joe still has my heart, but like I don't know It was it's it's hard to choose between Trader Joe's and Whole Foods. Anyway, that is it for today's video Um, I thought also I want to tell you guys a total So we spent two hundred and fourteen dollars total, which is awesome because usually we do instacart And I get three items and it comes out to 200 no joke and that's from Publix This stuff is so healthy and amazing. So I'm really happy that we went to Whole Foods, but Yeah, you got anything you want to say?  It was fire too. Oh my god. All right guys So we hope you enjoyed today's video. We're doing more lifestyle stuff. Like I said, so Yeah, this is like typically how we eat and all the healthy stuff we're getting. What should we show them like our workout routine? Maybe we've been working out a lot lately. I did like five days in a row Yesterday was my rest day and it's because she made me take a rest day. I didn't want to I've been putting work. I did five days in a row too Are you dating? Yes, I did. You skipped a day. Babe, no, I didn't Why are you yelling at me? Because you're lying on camera. I didn't skip a day. I did bar. That's still working out Mmm, he he don't count. He don't count pilates and bar as working out. I don't but it is working out We're gonna come out. Oh my god No, but yeah, let him do one of those classes. He'll be dying whatever sleeping on it But anyway, that's it.   It's just not my style You just knocking in there. That's not because you do it.  There's something in my eye. All right. Well, that is it for today guys I hope you guys enjoyed and obviously we're just joking around.  No, I don't I will not be with you What you told me yesterday that was ugly. He's lying. All right. I'm done with cheerful funerary. That's it We'll catch you guys in the next video Uh, comment down below if you want to see our workout routine, which muscle group would you like to see first and yeah That was just


Hello, everyone. And welcome to this month's webinar on MoodleNet, our global network to share and curate open educational resources. So I have with me today, Martin de Guillaume as the CEO of Moodle and MoodleNet product manager, Paul Hodgson, and together they're going to talk to you about MoodleNet. And after the presentation, we're going to have a question and answer session. So you're very welcome to ask your questions in the chat where you're also welcome to tell us where you're coming from. And if you want to raise your hands as well. So I'm going to hand over to Martin and Paul to start telling you and introducing MoodleNet to you. And thank you very much. Thank you, Mary. I'm I'll kick off here. This is my fault. And are you going to be forwarding the slides or Paul? There we go.  MoodleNet started with a problem and it's been a problem we face since the very beginning of Moodle. It's really been there for 15, 20 years, which is that we are here and the purpose of Moodle is to empower educators. We're here to give people tools to do great quality education online. And we work mostly on Moodle platform. And the trouble is when you are first given a new course or you create a new course in Moodle. You see something like this, a pretty empty blank canvas. And then it's your job as the person making this course to decide what to do next. And a lot of people are a few different things happen. What happens is people might have a few PDFs or documents that they used in their teaching before and they start dumping them in there. But that's not always a really good experience for students. Or people think, oh, well, I have to write all this content now. So they sit down and start adding pages and typing in all the content and creating their own textbook effectively and spending a lot of time doing it. Or you go out onto the search engines and you start looking on the Internet for things and you then have to go through a lot of stuff. So probably for everything that you find, you might have to look at tens or dozens of different versions of that before you find the right picture or the right video or the right text or whatever. So I always felt we could do better in Moodle. But for quite a few years, we've been trying to create the solution. So let's look at the next one here. There is nothing out there that we can just connect to. There never has been anything that's just perfect to connect to. There's nothing that covered all of these things that would work. So the solution is a place with curated collections. If there was a place where other teachers had already done the effort of collecting the best content for exactly your subjects, that would be ideal. If somebody who was teaching your subjects said, this video is really good and this text is really good. And these are the pictures I use and they could speak from experience because they've actually tested them with students. And they could say, this worked. That would be great. So this collection and all the work people have done to find those things has already been done. The curation has been done and now hopefully you coming on later can benefit. It should be very integrated with Moodle. So it should be when you're looking at that empty course, it should be a couple of clicks away so you can find it really easily. The third point here is that we don't want to build a system that is one big system that we own. We don't want this to be in the control of one organization. We're trying to build infrastructure and the way Moodle is as open source is exactly the same. It's a software that everyone can use. Everybody can customize, people can adapt to their own circumstances. And so we think MoodleNet should be the same way. There should be lots of opportunity for everyone to control a bit of MoodleNet and that it all works together in a consistent way. And we call that federation when you federate across a number of copies of the software. This thing should also handle links. So there's tons of existing content out there. All of that should be available. But also there should be a place where you can upload things. So if you have a whole Moodle course that you want to share with others, there should be a way to upload that or a PDF or whatever it is. And finally, this should be an open source platform. We want the community to help build this thing, to help improve it and all of the things that happens with the Moodle learning management system itself. So that is what MoodleNet is. So just cut to the next slide here. And we've had a number of attempts to build this system. I think we're on our third or fourth. We tried to build it on MoodleNet itself. That didn't work for a few reasons. We tried to build it using some very new technologies a couple of years ago and that didn't work for certain reasons. And so now we have this one. We're calling it 2.0 because a lot of those early ones didn't really take off. We have a whole new user experience. You can find and use resources. And a lot of people are already starting to help test it. You're going to see all of that. The resources are all tagged with metadata. And this is what makes it different from just the Google search. This is for education. So we're able to label things educationally and focus on this as an educational content system. Collections can be owned by people. So this is a very important and something that's come up over some of the previous situations that it wasn't doing. In this version, people own their collections. And that's very important that someone is responsible for their collection. And that way they get the credit for it. Also, you know who to talk to. And if it isn't any good, well, you know, the same thing, right? You know who to talk to and fix that. And the thing is, if you own it, you actually feel like you're more invested and you want to make it a higher quality. There's ways to like things and we want the community to judge what is good and what is not good. So that as well as the curation, everything can be evaluated in gentle ways so that over time the best stuff is available at the top. And that's what you'll find. And we have the ability to follow things. I think it's important that if you find someone who's doing good work that and they're in your area. It's great to stay in touch with them and then see new stuff they come up with in the future because that's going to be useful and you start working together better. Or just even to follow a subject and see updates in that particular subject area. We have a profile quite prominent profile and the reason for that is to we hope that this will be a place where everyone can. Be proud of their moodle net profile and say well you know I've I've spent a lot of time researching these areas and and I like to be known for that. So hopefully in time it'll become another profile as part of your portfolio along with your LinkedIn profile and your Facebook profiles and your Twitter profiles. And the last thing here is the integration with moodle we really want to work on making the integration with moodle very very close so that it's a good experience, but it isn't limited to moodle. And we are building in a way that's very open to the world and will be able to connect with all kinds of systems in the future. Some of the metadata here I'm I don't know if you want to talk about this Paul or shall I. Yeah, I'm happy to talk about it if you want me to take over it. Yeah, look, I'll hand over to you Paul. So I'll introduce Paul Paul's the project, the product manager of moodle net and leading all the development now and he is more than qualified to talk about at least sort of details and over to you Paul. Thanks Martin and welcome everyone thanks for attending today. Well, I'll show you the metadata thing in a moment just to talk about a little bit about the the reason why we did this, how we did these are the ways you can actually describe your resource on moodle net so you can describe based on a subject and that's based on the international standard classification of education. You can give it a level of education and you can give it a license based on creative commons, and these three things allow someone to judge exactly if it's in the right area, if it's the right level and obviously if you can use it and remix it etc. I will demonstrate this more than then talk about it. Also, you can do educational types you can say what's in there is an assessment is a presentation is at the website is it reading is a concept map is it and there are lots and lots based on the learning object model of the IE and what format is it so is it a video is it text is it a PDF is it etc and that covers any mime type that you can think about. You can even put in moodle backup files if you wanted to share, let's say a whole course, you could share that on moodle net to other people for them to send to their moodle as well. And finally language of course on ISO 639 we've got lots of languages available as well on every resource. I'm going to escape my screen from it so I can switch my window. Essentially what you're looking at now is available online it's moodle net and you can access this right now. I'm going to show you a live little run through so you can see it. And what I'm looking at here is the landing page or the homepage, which is as a new user, not logged in, no authentication, and the spirit of openness the idea behind this is that you should be able to find and use resources without an account. I can search for anything straight away so if I go for, for example, I can see a subject which Martin mentioned, I can see the collections. I can see the resources and I can see the people are all relevant to that search term. And hopefully you can see how responsive it is as well. So if I was to change that immediately I get climate resources collections and people as well. Now, from here you can see that even I can see everything. I can't actually start to follow anything I can go in and see people so I could say for example well, let's see this collection on climate change. This is what's been added in terms of resources to the system by moodle net so we create and curate some collections as well in moodle net, but generally it's other people that do it. Let me just search for a user and Anna's on the call so I hope she doesn't mind using her profile here. If I want to search for a specific person I can also do that. So I've just pulled up Anna who's on the moodle net team here, and I can see what Anna is doing on the system. Now, I cannot follow on it, and I cannot contact on it, because I am a guest user. I'm going to show you once we've logged in and once we've created account what we can do with this. And this tells you the resources that Anna has added to moodle net and the curation of content here as well. And you can see here Anna has four followers, five kudos which I'll get to in a moment and has uploaded seven resources. So Martin mentioned here about having a profile page where you can build your profile as an educator. And as you add resources, and you can see there are likes on site here which I cannot like because I'm a guest user but I could if I was a full user. Anna is then awarded kudos. So hopefully with a bit of mathematics we can add up these likes and that should equal number of kudos that Anna's had. This is a very rudimentary and basic way of measuring the usefulness of the profile of that person and also the resources individually. And this is going to become much bigger in terms of how we eventually search for items on moodle net and how things are rated as good items against those aren't so good and will become top of the search routines. Okay, so let me log in and I'll show you the difference. I'm just going to log in as myself. I have a profile on here and you'll see straight away. So my profile is presented when I log in. You can log in right now you can sign up. All you'll have to do is to click a link in your email to validate that you are a real user, and you will be able to do this yourself and customize your profile page. But you can see, totally customizable with my avatar my cover page and it then you can edit the the actual content of your page as well. So you should be able to identify it's me straight away. And you can see I've got 14 followers 14 kudos and I've uploaded 10 resources to this and I'm curating two collections here, one on NASA and one on animals. Now, if I was to look around now moodle net if I was to go back and say well okay let me search on climate again, which I did the first time. You'll see now that I can follow people immediately who have resources. Now if you look at this card on people you'll see the number of people following them, the number of kudos they've got and the number of resources this is quite a few people are here looking for content. But as we get through it you'll see that some people here are actually starting to be followed and curate their own collections. So if I look at the climate change, it was moodle net before you can now see that I can like unlike bookmark follow. So that will follow the collection itself or I can bookmark it. So the difference between bookmark and follow bookmark is really I want to check this later. I'm not ready to follow it follow it is that's actively my subjects and I'd like to follow this collection, and you can always then get to it from your profile so if I follow that climate change collection. And then I go to my profile and see what I'm following. You'll see that climate change is now in my profile list so that I get access to everything you can see who I'm following as well so I can go straight into their resources and see what they're doing. Okay, so searching is exactly the same whether you're a guest user or a full user it's only the ability to like follow get involved contact people. If you are a full user, you'll see if I go back to Anna's profile here that I can unfollow and follow again, or I can actually message Anna if someone I want to get in touch with. There's no email addresses that are publicly available so this is all in the system, and it's hidden and it's secure. So don't worry about losing your email address to system it's not public at all. Let me show you a little bit about adding resources here. So, starting with this plus sign up here so you can do a new resource or a new collection so as said before. The collection is the curation side of things it doesn't necessarily have to be your own resources in a collection that can be anywhere on middle net. If I just add a resource here. It's a very quick process to actually add this but it's actually extremely important that you put as much data in here as you can. I'm going to do two things first thing I'm going to do is to add a link so you can see a link here and I found a resource here on the water cycle from October 2010 our souls quite useful to my students. So I'm going to add this just as a link. So if I copy the URL there. I can add this back into paste the link. And add it. Now I can add a thumbnail if I wish to add a thumbnail to that if I don't moodle will put a lot more than that will put an automatic thumbnail in there for you and I need to start adding some metadata. These things are so important because they give the the resource the search ability aspect. So what we have here is we really would like something which contains lots of relevant texts that we can search on. So I'm going to put some of an executive summary in there. And what's also really useful is if we can put in how people can use this with their students because that's often how they're searching for things. And this is obviously the water cycle give it a quick title. Subjects these are the I said categories and you can just start to type well this is an environmental type. Subjects so I'll select that now as default. In case you wanted to add some resources and keep them private so then don't appear in the search results straight away. The visibility is set to private, but you can go to public if you're ready you can add these things as private come back later and publish them as well so I'm going to make this published. Let's add it to any of my collections. Now not really because this is my resource and these curated collections are other people's resources that I use. So I'm not going to add anything at that stage. And finally, this is the metadata which you don't have to add this is optional. However, this makes it much more likely that your, your resource will be found and used, because people are looking at what is this. Is it is it a full course. What language what level is it at well this is lower secondary education, you saw from the resource it was October 2010. And you don't have to drop these down you can actually search in these boxes as well. And this one is in English. But you can see lots and lots of language options so when I create this resource. And there you go that is now publicly available on moodle net, and you'll see from a resource anyone who finds this will see the screen, and they can then add it to their own collection. They can follow the link for it, or they can send it into their moodle straight into a course so teacher can actually be in a course on moodle and say, go and get this from moodle net, and it will bring it back as in this case a link, but it could be a resource image file PDF and it would put it into that course directly. I'm just going to show you that very quickly as well in terms of a file. So you can see the difference. So I'm going to do a new resource again and this time I'm going to click to upload a file. You can't see where I'm browsing of course but I'm just going to put a PDF in here, which is this PDF. It's a climate change PDF from the UK. And I'm going to just take the title. And again, we want a good description. So I'm going to just use the executive summary in terms of this. And normally I would also put how this is useful in my course. Again, this time because it's a file, it's a PDF file, I'm uploading it I'm going to have to tell the system what license it operates under. Now this is a totally open resource. Otherwise, I really wouldn't have added it to moodle net although you can add any of these Creative Commons licenses. This is totally the public domain and will be shown as such on the resource so people know they can use it. Again, it's an environmental science resource. And I'm going to publish this. Now this time, do I want to add it to anything? No, I don't again because this is a resource that I want other people to find and use. And what is it? Well, this one is more of a data set or a glossary. It's for the same level of education. The date for this one is actually right there. It was in 2020. We don't know when. So we will change that just to be 2020. And this one is also in English, but you can see the range of languages we have there. If you wanted to have different languages, it's fine. And we're getting quite a lot of non English content in moodle net already. So this time this file is uploaded to middle net. And there it is. Now you'll see the differences here. I can still send it to moodle. I can still add it to a collection, but this time I can download and use it. And that's very important because that can be used in any LMS or any educational system. At that point, you don't have to use it just with moodle. Okay. So that's movement. Now if I search for those things. So if I say consuming in here. There you go. And there's the results I've just uploaded. So it's immediately available in the search results. Let's talk about collections and for a moment. So collections this time if I wanted to have a new collection, I could put an image in for myself if I wanted to and it would show on the collections page. This is going to be on environment. And this is going to be, it could be a full description on the sorts of things I teach it could be the description of the resources whatever you wish. But this is also searchable so it should be a full description. Again, it will stay private until you make public. And that's it. The collection is now there now I can go and search on environment. Did it on consumption. So there was that one, I can now add that to my environmental collection. Essentially my environmental collection is available to other users now from my profile, it's appeared there and in it is the resource that I've added. And that's what we mean by curation that this can become a very long list of useful items for the environment. Now in there people can bookmark and like if you like your own resources you don't get kudos of course that would that would not make sense. But you can people can like it follow it bookmark it and so on. And again, they can then just use it as I did in their own system. And that's essentially moodle net. The nice thing about it is you know your bookmarks are still available anything you've bookmarked is here it's available via your profile, anything you're following is here. So you could just follow the subjects that you're interested in, and it would then give you the resources that are in that subject. You could just follow collections or say somebody is really good in terms of this and john welcome to the call I saw you join earlier. So you can you can use john's resources there as well. Again really nicely tagged and ready to be used. Now it's important that we do give kudos and we do give likes to things because that's the way when we search here that things are going to rise in the search engine so this resource here. So if you look at them all. These are all based on and you can see is one that has has a like, eventually that liked resource being the highest rated one for research would come top of the list. And that's essentially it you can filter by subjects collection resource and people relevance popularity. And that is moodle net as it says and you can see from the landing page here we're actually putting things on here which are well liked well used or subjects that have a lot of decent content in we actually add those to the front page. Now, as Martin said earlier, but moodle net you can install for yourself. So you get complete control over this as a as an organization as well if you wish to do that. And then you can federate it back and if you do federate it back to moodle net central. When we search in here, it will search not only the moodle net central but also your federated instance of data as well. So all search results will come through this screen. So just to show you a couple of things that that will happen in terms of the moodle integration so just going to skip back all these screens because this is your recorded screen shots if you want to look at this later. See here if I send something to moodle, a little pop up will come up and say, where is your moodle site. And you can put your moodle site in and send it straight over. Or if your moodle is configured correctly with moodle net central it's as simple as this it's in the admin side of your moodle installation. It works from 3.9 onwards. It will work in version four as well. Once you get that version, you can put this in all your own instance, and then moodle will send automatically and will include this next page which is when you add an activity or resource down at the bottom. You will have a link to browse content from moodle net and bring it straight into your course in moodle. What's next.  It's still in development. We are still looking at future features. We are still looking at any little tweaks we can do to make it better. We'd really like to know how you could use moodle net. You can tell us today but also you can contribute in our tracker. In moodle net itself when you log in there is a link to tracker in the bottom of the page. You can use it institutional level, install it yourself. And obviously being open source we're very keen to work with people who can develop and can sponsor some development within moodle net to make it better because there are some very large software developments coming to make it more useful. And if you've done anything in the past, even on moodle net or somewhere else, please add them to moodle net with more content becomes a greater useful system. And that's where we are. So thank you very much. I will pass back to Mary. Thank you. Okay. That was really good. So what I'm going to do now then is Paul and Martin we have lots of questions. And I'm going to take a look at them and I'm going to go through them one at a time if that's okay with you and everyone. And feel free either of you to answer them so starting with Sarah Sally who was asking, talking about the differences between moodle net and comments. I can address that one. So yes, OER Commons and many other OER collections are out there. They don't have the full benefit that we need in the LMS. So the integration in the LMS is not ever going to be as good. And secondly, if you go and look at OER Commons, there are thousands and thousands of things arranged by metadata in a very similar way. But I don't see the small collections that are curated by individual teachers that are easy to find and get and that kind of more personal approach, which I think certainly works on places like Pinterest and other places like that. And I think it's a look it's an experiment as well, we're going to see how it's going to work but I think it will enable more people to feel more able to put their expertise into the system. OER Commons is sort of one big site. And that's another angle that moodle net is designed to be hosted by many, many organizations and OER Commons is reliant on one organization to host it if that organization doesn't get funding next year. That site could disappear. And so we're trying to build something that's distributed the risk is distributed here. Sam is very pleased with the bookmarks and the likes by the way a comment there, and also is talking about copyrights and trusting users and how will you deal with that kind of thing. Well, you might have noticed in that demo there was some junk. And that's because moodle.net, which is our installation over that open source software. So it's only the main one. But it has been open for a while we've been testing we've had it we've had the doors wide open anybody can come in and upload stuff. And they have been. So the the work from here on is putting barriers in so that only people who are putting good stuff are able to be seen. And the very first one is landing. When Paul next week next week next week, which is that there'll be a small barrier to jump that when you first get on the site, you even when you have an account, you can upload things but those things can't be seen by anyone else. So when you have five resources, good resources, you can apply to be approved, and our team will approve the user and then your things will will appear and be seen. Now that's a very base level thing. And we have some well Paul has some interesting plans with the moodle net team to create a full sort of gamification tree, something like you might see on stack overflow or if you didn't look at Apple discussions or a lot of online forums. And users rank up as they do more good things. And the more good things you do the more trust everyone gets and the more responsibilities you're given and you're able to do more and more so this way we can let the community manage things as much as possible. Thank you. We have a couple of language related questions that have us as asking does it support Arabic language and Anna's replied yes. I wonder if you could talk a bit in general about the language interface or resources in different languages, Shell was saying if we have a resource, and we upload it in different if we have it in different languages, do we have to upload every single resource or can we upload it once and it will can be accessed or downloaded in in our choice of language so maybe something on that lines. Yeah, I can take that one. Essentially at the moment, each resource is linked to one language as there isn't a feature to say this is available in these so it's separate resources at the moment. This is what exactly we want to know because this is where we're going with mood on it right now you can say we need this as a as a as a function as a feature will go into the roadmap for discussion and the same as we do with moodle you know we will be looking at who votes for what and how many people are interested and that will get prioritized on that basis. So yes it does do Arabic it does support all those languages, but it's single language single resource right now. Thank you. And our bus is asking about visibility of the students so for instance, can I create a resource and make it only visible to my students if they then sign up as well in moodle.net. I'll take that one because I noticed there was a bit of a thread of people saying this is great but I just want to have my own private space. And that is that is exactly the design so moodle net is designed for you to able if you want to you can install your own instance your own copy of moodle net. Administer it run at your own way have your own accounts it can be private you don't need to let everyone else in and you can you could set it up so that only your institution has access or maybe your own set of institutions. It's, it's not really we have not thought about it as a place for students to be hanging out there like it's it doesn't replace moodle. If you actually just want to give resources to your class, just put them in moodle where you don't need moodle net for that. But if you want to have a kind of repository a collection of curations going on over time, then installation of moodle net might work for you. And then how it works is there's a switch, or there will be a switch to say, we would like our moodle net to be accessible to the world. And when you turn on the switch, it's now connected to the other moodle net sites and you can and one global search can search all of them. And just to add to that one because there's another question I noticed in the chat saying, do we copy or do we link to federated data it's just a link we're not going to host the world that's the idea with a distributed system. Okay, thank you. In terms of what is uploaded and adab's asking, how about uploading or sharing moodle modules. I would say no, that's not a proper use of moodle. I mean, I don't think it would be very good to have code running code shared through a system like this. Even content is tricky enough but code is not something we have other solutions for code and adab the moodle plugins database and we're looking at extending that into a kind of an app store as well so that'll be more properly like an app store. Okay, Nikos is asking when you add a resource in your collection, can you edit it afterwards, meaning can I get a resource, then build on it generating a new resource essentially adding other metadata and so on. Absolutely, as long as you put in the three basic pieces of information which is the resource itself, the subject, a title and a description, and a license if it's an actual upload. Everything else can be done that later you can add at that point and come back and edit it as much as you want. Okay, thank you. And in terms of feedback on resources we know that you can like resources but Mark is asking other plans to allow users to leave comments or feedback in other words more detailed feedback could be useful for the creator to receive feedback on maybe how others have used it or what they liked about it. Absolutely yes this is coming next, when we talk about gamification we talk about that social aspect of how people comment I don't know if you're aware of somewhere like Stack Overflow. This is all part of the same system for gamification where the comment itself is then marked as useful. It's useful to the teacher it's useful to the person that wants to read it etc. So this is on the plan for the next version. Okay I'm going to dive as another question. Is it possible to bulk upload resources with metadata. It's a great question. Yeah, go on Martin. Will you get the metadata right. You know if you're dumping a thousand things into your system. Is it going to be useful to anyone afterwards is my question. I think it's, I don't, there's no tool for that right yet Paul, but surely as an open source project if people solve those problems they'll be great add-ons or plugins or additions to MoodleNet for sure. I think overall I would like to see MoodleNet focus on quality over quantity. But we'll you know we're going to see how it works out. MoodleNet thank you and is it possible to order items within a collection. At the moment no they're in the order that you upload them. But that's again another one that will be quite easy for somebody to contribute something to make that available. Okay thank you and another question from Nadav, but I'm going to choose other people as well actually. I think you've kind of covered this he's asking can teachers discuss a resource well you're planning on extra feedback aren't you I suppose that's sort of the way towards it. Michael says is there any granularity availability plan for public versus private resources. In terms of sharing assessments with only other educators. Again I think you've sort of covered that in that you can have your own install but what about, you know, other ways centrally. It depends on how you want to let them in and how do you know they're an educator is it are they very particular people like do you have a group of 100 people you want to share it with. In which case you might want to run your own private MoodleNet server and give them access to it. But it might get a little complicated if everyone's managing access on a per resource basis. You know, maybe maybe it'll get there but I think our job is to try and keep everything simple as possible. If it gets too complicated it's probably going to get hard to use and then and then it won't be used. Okay, I think this has already been answered but I want to highlight it really from Fatima Danielle. Will there be whole Moodle courses available and MoodleNet that can give inspiration to other course developers the content, different styles of activities information etc as someone who's created many courses this will be so useful to me. Absolutely yes. This is exactly what it's intended for and we are already working on if you were to back a Moodle course how do we actually extrapolate that data into MoodleNet so that it gives you a full overview of what that course is about before you then send it back to your version of MoodleNet. It is already possible to put back ups Moodle backups into MoodleNet now and send them back to MoodleNet. So it supports that. It's what Paul was saying was about getting a preview of the course before you copy it into your own MoodleNet. And Shell is saying if we find some content that's not appropriate, how should we proceed? I mean for now for instance. That's what Martin was saying about this new feature that's coming next week which is essentially we want to be able to approve people before they can post publicly. They can post but it doesn't become public until you approve them as a trusted profile essentially. So that will be available from next week. Other than that you will be able to restrict the user accounts if you have your own install installed so you could say that only our network of email addresses is allowed to post anything. Otherwise they would just be ignored or closed down completely so they couldn't post. And we can also add and we've discussed ways of flagging problematic content that might have slipped through or not been seen. But we have to be careful making that completely automated because you know say all of us here decide to go to a resource. We're having a zoom call and hey let's go and all thumbs down on one resource. We could take it off the site even if it was actually good. So these are really interesting issues on how we collaboratively manage so much data together and I think these are important problems for us to solve in this age. So I'm hoping the moodle community will help us solve these things in a nice way. What we don't want to do is have a team of 100,000 editors working behind the scenes. Like Facebook having to continually check everything. Thank you. I see lots of questions so I'm going to move on. Marlene the social side of moodle net so we know about the communication in terms of comments about resources. What about communication separate or independent from resources such as making a post or having a news feed. Yes, essentially that's already capable we're curating the front page which is a news feed essentially, but that will all come into the gamification as well. So you when you log into moodle net you will have well these are the things that you are interested in things that you follow, but also on the other side. These are the things which are being discussed and our hot topics etc etc yes that's coming to the gamification. Thank you. We have a technical question here so I'll just read it is a release planned with an official release planned with Docker. Yep, if you follow the document link to the moodle docs is already a Docker installation out there of this version we're running on npm so you can get that right now and install it yourself. Thank you. I was just asking can you upload video I don't see why not. Right you're right Mary you don't see why not it's a technical discussion that one the answer is yes technically you can but we we obviously have to control server resources. So someone put a 20 gigabyte video file it's probably not the best use of resources and that might be restricted by the environment but yes is the is the short answer to that. I have a couple of technical questions I don't know how far you want to go or detail you want to do with that unless there's somewhere you can point people to Alex wants to know the tech requirements to run a moodle net server for local use. Are they similar to running moodle. Would you be able to configure it on your internet intranet or would it require technical settings. I don't want to get too technical if you want to go to the community and ask questions I'm happy that the team answers these very specifically but if you look at the instructions for the install. It is actually very straightforward if you know how to do a couple of vessels eight scripts. You can actually pull moodle net down to your internet locally in about four comments and set it up and run it that quickly. Yes but any technical questions put them in the community will answer them as soon as we can. If I can add to that. I would say that if you can install moodle from scratch and that means putting PHP and databases and things like that then you have no problem installing this but it is a completely different set of technologies. And it's not really just the install it's maintenance so you know you're you've become a system administrator now so you are now running a system that's going to have updates and it's going to have maintenance. And it's like anything else so yeah it's not I don't think it's very hard but it's definitely something to consider. Richard's asking can you filter a search by language. That's coming as well in the next version at the moment you will if you do a keyword search it will just give you all languages but you saw on the left that you can filter by people resources. And if any metadata as a system builds is going to include the ability to filter by those metadata yes on the left hand side of the page. Okay. I think there's a quick answer to this Luca, since we seem to be in the technical type side. Does this moodle net to redesign still relate to the activity protocol. I can probably take that. No, because the and that was actually an issue with the previous iteration we tried to build the whole thing around this protocol. And that led to the architecture of the system going a certain way that protocol was not perfect for our use case. And so the architecture turned out to be not very easy to work with in summary so with the redesign we took a lot of time to go back to fundamentals. I think activity pub is still a useful format for transferring data from one system to another. I would not build a system around it again. So we can still add activity pub support to moodle net. Now we can still add it but it hasn't been a focus. The focus has been to get the core experience right in the structure. Okay, thank you. I've just got three more. And I see we're coming towards the hour which is brilliant. How will you from keeper how will you manage the translation of the project into other languages. It was a technical answer to that. Yeah, I mean it's totally capable to use what we call POT files on a moodle net instance so that it's automatically all the strings are translated into language you want. And that's in built into the system. We're running it only in English right now but yeah we this will be browser based translation automatically based on on POT files. Thank you. Now Sally is giving me a great opportunity to promote the course that is attached to this webinar because she's saying, should I be able to create a resource and assuming she means add one. It doesn't seem to work. Sally, if it doesn't work or you're having problems, please go into the course and we'd love everyone to go in the course and try the activities and there is a forum there where we can discuss moodle net and if you complete the activities you can get a badge. So maybe that might help you. Diana says thanks for this it's something which the community is eager to use. If you have the possibility to have communication and resources, limited to a group or community so you can adhere to a group that's slightly too connected to having your own organizations. Isn't it I suppose. Yeah, it's the same that the similar answer is that if you have a large issue use case where it makes it worth it to run and all your own moodle net installation. And that's what you should do. You run a moodle net of your own put your own things in there have your own people there. However, the overall project we are biased towards opening and we want to open things we want to encourage people to share. We are the lovely thing about open source is that it also encourages privacy. And we hope that most people will will default to sharing things. Excellent. Richard is saying this all looks brilliant 10,000 kudos to Paul and his team which is nice. As we're heading towards the top of the hour now just like to know how any of you are thinking you might want to use moodle net yourself in your own organizations. And then I'm going to talk to you a little bit about how you can get involved in Academy having joined in this particular webinar. So are there any more questions or any thoughts on how you might use moodle net. Sally says we've been looking for something like this for ages and now you found it Sally. Yeah, I would love to know what kind of use case you have you know university college is it a private company is it a some other sort of institution. Yes, I for instance if you've been looking for something like this for ages why have you been looking for it if you if you'd like to tell us. Or anyone else now throw it in there. Do you want to speak quickly. Yeah, turn on some marks. Okay. Kim saying she's asking all lots of people are answering now. I'm losing track. Yeah, okay so to break the ice. So our institution we really thought about a platform which we like to have to have the lecture shares open education resource. Then we call it the virtual Academy or Germany virtual Academy. And as you probably know, we focused to use that technology and so yeah. In our place there's a moodle net server running already. And we're looking forward to introduce that to the people. Great. Thank you. We've got Kim who's going to ask her college to connect to moodle net Eduardo, who is lobbying for moodle net in key key 12 education in Israel, who says there's much to benefit from moodle net. Justin says not grand focus but it will be very useful as a content repository for organizations with large content databases. Sally says we have huge collections of resources and we want staff to be able to share, not only with we each other but to be able to publish openly and that is a great idea. I'm going to ask one last question and then I'm going to talk to you about getting involved in Academy. Alex, is there a way to have integration with H5P or our hub. I can talk about that. So they have their own. One easy way to integrate is if you have a number of H5P resources that you think are useful and belong together in a collection, then you can just manually create one resource for each one in moodle net and link them across and put them into a collection. An automatic joining of the two it's very hard to see how that would work or should work. Really, I think we need to be focusing on the collections part, not just on putting millions of things in there because then you have the same problem as Google does right search engines have. Yeah, we need to focus on human beings choosing some things and putting them in there. I think so. Could I just add something there as well from the questions I can see you know people are obviously thinking we've got, you know, hundreds of thousands of resources and things like that. We are looking to do a few tests with people, as Luke has already, we're already helping you guys out to try and get you with your own instance and prove it as a case so you know if you want to contact me. I'll certainly talk to you about how we can help you do it. Thank you. And yes we are getting lots of people talking about how they envisage using moodle net. And can I just remind you before we finish them that we have a discussion forum on the course where you're welcome to go and continue asking questions and talking about moodle net. So I would just like to bank Martin and Paul very much for the presentation back all of you for your questions. And if you've enjoyed this, then please will you get involved in Academy by joining the get involved course which is on Academy and suggesting other ideas for us for webinars and courses. You might even like to contribute to a webinar yourself as a presenter and then you will have a presenter badge, or if you are a course writer or developer, why not help us in creating a course and get a course build a badge. And of course, please help us spread the word. Tell others that you've been to this webinar and tell them to come and watch the recording. All our webinars are recorded so you can watch them afterwards and complete the courses to get highly prized middle Academy badges, which you can share on social media. If you're an educator, we have a course to see if you're ready to take our moodle educator certification program. And that's also worth trying and seeing if you can get the ultimate middle educator certification. So I'm going to say thank you very much again thanks to Martin and Paul, and thanks to all of you. And I'm just going to stop the recording now.


The objective of this paper was to evaluate the accuracy of two advanced blending algorithms to downscale moderate resolution imaging spectroradiometer, MODIS, indices to the spatial resolution of Landsat. We tested two approaches, index then blend, IB, and blend then index, BI, when simulating nine indices. The IB approach produced higher accuracy than the BI for all line indices at all three sites. This article was authored by Abdullah Yarihani, Tim R. McVicker, Thomas G. Van Neel and others.


A previous linear fraction, a variation with concept overhead by George G. Gorsch, Jasper Nielsen, and Tobias Nigels. And Tobias is giving a talk. Thank you for the introduction. So, I'm going to talk about maliciously security. Let's start with a small motivation and introduction. Standard setting in deep-body and multi-body computations. The arithmetic computation of the functions. So we have two parties, 21 and 22, and they want to try to compute some arithmetic circuit on their inputs. And the two basic operations that you have to realize that this is a addition and a multiplication, the addition is typically very easy, especially if you look at secretarian-based multi-party computation protocols that the multiplication requires a bit of work. And usually you have this one sub-rotical for the addition and one sub-rotical for the multiplication values. So, as I said, the addition is typically easy and the multiplication requires some work. So that is what we're going to focus on. This is the secure partification of the two values. And formally you can abstract this as an oblivious linear function evaluation. So you have two parties, party 1 and party 2. Party 1 has its input, the value 8, and some random value r. And party b has its input, the value b. And they want to compute linear function a times equals r. So this ODE realizes this kind of functionality. And this gives you a shared multiplication in the sense that party 1 can send its share to b minus r, and party 2 sends its share. It's 8 times b plus r. And if you add these two shares, you get the multiplication a times b. And there are many implicit constructions of such a secure multiplication. For instance, SPEEDS uses thermo-tumor-morphic encryption. Encryption and zero-volve proofs. But this has a comparatively large computational overhead. MESC, for instance, uses Lewis transfer and AES. And the whole protocol is optimized to work with AES and IAS structures. And although the construction itself is not as importantly optimal in the sense of the number of OTs, it uses pure multiplication. The protocol is very fast in practice. And then there's the SIDES, or 90-SHI, Ramakan and Sahai paper. They actually build an ODE, a standalone ODE protocol from Lewis transfer and noisy encodings. But this is only passively secure. And their construction is asymptotically optimal, at least so they have four constructions in their paper. But the most efficient one is as a constant overhead. But this suggests to use this generic transformation of IHS08 from passive to active security to get an actively secure multiplication. That's the MESC in the ad paradigm. So you have to do a lot of bookkeeping and no one really wants to implement it. So although it might be asymptotically the best you can do, apparently no one wants to use it. And we realize that ODE as a black box is not used very often in practical MESC or two-part computation protocols. So most of the protocols like speed or MESC are used at hard construction for the modifications and to some additional tools to get active security. And there's basically no direct construction of active security over the end. What I'm now talking about is how to get it practically efficient and relevant over the sense that hopefully you will be convinced by the end of the talk that it is worthwhile to go to implement or to design an actively secure ODE protocol. So our contribution is on a practical level that's what I'm going to talk about. It's an actively secure ODE with communication complexity and a very small computation overhead. And the construction that we have has an overhead of two over the most efficient passive secure ODE construction. So we basically get active security for free. And on the technical level, that is, I will only sketch some of these points. We use the noisy encodings similar to the ICSL9 paper. We show that all noisy encodings, at the end of the other exception, are resilient against leakage. And noisy encodings are also robust against tempering. I will get to that in a bit. So let's first have a look at how to multiply with passive security. As I said, I want to focus on the noisy encoding version of the ICSL9 paper. A noisy encoding abstractly consists of three algorithms, an encoding algorithm, an evaluation, and a decoding algorithm. This encoding takes as input a value or a vector depending on which type of encoding to use. Outputs is set L. This set L is basically a secret key. And then without an encoding, there's also some public information that I didn't mention here. Then you have an evaluation algorithm that's a homomorphic algorithm that takes as input one encoding and some additional values, E and R in our setting, and outputs a modified encoding, and then there's the decoding algorithm which uses the secret key to output 80 times B plus R. So concretely, if you have this encoding algorithm that you want to encode in element 8, you basically create a chemise secret area or a resolvent encoding of this value 8. So for instance, you can store this value 8 at x equals 0 of a polynomial of between k minus 1. And then you simply evaluate this polynomial in the number of positions. In this case, 4k. So you get a vector of field elements which encodes this element. And then you pick a random error with bait 2k plus 1. And add us now the index set of the noiseless positions. And the encoding is then simply the addition of this vector 8 plus B error. It's somewhat similar to L, L, E, or L, P, N. But it's a different type of assumption. The assumption is also stated in a similar way. So we have pseudo-random assumption which states that the encoding is generated in this way, in this thing, which is from a uniformly random string. And so the evaluation algorithm now basically works the same. You set your input B to be the y to the second of the polynomial B of degree k minus 1 f of 4. Also evaluate this polynomial at 4k positions. The same for a polynomial r. But in this case, this r polynomial which serves basically as a random mask has to have degree 2k minus 2k B twice the degree of input of B. And then you do a point-wise multiplication. So you multiply the first element of B times the first element of the encoding that you get and then you have a random mask. And then you get a noisy encoding of the result. And if you want to decode this noisy encoding because you know the set L as the secret key, you can simply ignore all the noisy positions. And then you can interpolate the polynomial y. This noisy encoding has 2k minus more noiseless positions. The polynomial has degree 2k minus 2 so the interpolation will work. So how do we get from this noisy encoding to a multiplication? Simply we have the two parties, party 1 and party 2. Party 2 encodes its input A, sets this encoding to party 1. And now the parties use a k out of n or t. k in this case is 2k minus 1. So party 1 inputs its homomorphically evaluated encoding into this k out of n or t. And party 2 chooses the noisy positions via its index set. And then you can decode the polynomial. And in the way that I described it, it only gives you one multiplication for n elements that you don't have a constant overhead. Oh, I forgot. So you also get the same shared multiplication as I mentioned before. So if you do the way that I described, you only get one multiplication for n elements. But if you use peck's secret sharing or for resolve encode for the input encoding of this A and B polynomial, then you get constant fraction of inputs into this encoding. You have a constant overhead for a multiplication. So this is the passive secure protocol. And now I'm going to describe how to get to an active secure variant of this. So let's have another look at this passively secure protocol. So what can go wrong? The first problem that we have is that if we want to replace the k out of n or t by a maliciously secure variant, this requires a lot more communication. So at least n of n of t plus some additional assumptions and a lot of work. So that would already destroy the constant communication overhead that we want to achieve. And then obviously, party one and party two might achieve in the generation of this encoding or in the homomorphic evaluation. So to solve the first problem, we build a leaky k out of n of t, leaky in the sense that at most the number of bits of this input set L are leaked. And this leaky k out of n of t requires only n maliciously secure one out of two at ease. And this doesn't work as a generic k out of n of t. It only works if k and n are in the linear size of the security parameter. So we use these n maliciously secure one out of two at ease. And then a roll n, roll remember was the weight of the error vector. We use a roll n secret sharing to enforce that the most size of set L elements of this encoding can be learned. So the protocol is very simple. Party one now has this modified encoding w, party two has this set L, and party one picks one uniformly random value field element e, creates a secret sharing and computes a hash on this value. So this basically serves as a commitment since the commitment on this value e to party two. And then for each of the n, one out of two at ease, party one sends one element of the encoding and one share of the secret sharing. And depending on whether this element is noiseless or not, party two will either pick the encoding or the share of the secret sharing. And now party two, if it's honest, it will be able to reconstruct this value e from the secret sharing. And at the same time, be able to decode. So what we want to prevent is that the party two learns more than two k minus one values of this encoding w because otherwise, as we will see later, it might learn some information about the input. So this, because of the reconstruction threshold, you can be sure that if party two is able to reconstruct this value e prime, then party two learned at most two k minus one elements of this encoding w. And yeah, this hash, as I said, serves basically as a verification so that party two knows that party one didn't select some strange input for the secret sharing, which might be some information about the set l. And party two then has to announce this value e so party one knows that party two was actually able to reconstruct the value e. So that's the first problem. And the second problem is to make sure that the operations are actually carried out correctly. And our main idea is we want to reuse the polynomials that we have to generate for the encodings. So we get this a polynomial for the input of party two, b and r for the inputs of party a one, and then we get the resulting polynomial. And the main trick now is we just pick one random field element. Each party picks a random field element, sends it to the other party. Each party evaluates this random field element. Each party evaluates its inputs on this random field element and sends the result to the other party. And then both parties can locally verify that this relation a times b plus r equals y is actually true. And if anyone cheated during the protocol, then this relation will not hold any kind of negligible probability because we're in a large field. So that's basically the second problem. Let's have a look at the complete protocol. So first of all, we have to slightly change the inputs. We use it for the league k of n of t. We use a random mask instead of directly using the encoding because otherwise, if party two gets dishonest, might actually learn the complete encoding. Then party p one will realize that and import, but the input is deleted. So we have to do it in two steps. So first we use this random mask. After this execution party one is sure that only 2k minus 1 must arrive at party two. Then we do basically the passive secure protocol to the evaluation on this encoding and then lines the encoding by this random mask. And then send this line back to party two which can then decode the noise positions because it has the red mask on it. And then in the end we do the check. So there's two remaining problems. The first is the extraction of the inputs and the second is leakage. So I mentioned before that there's some leakage in the protocol depending on the inputs of party two. The extraction, in the sense we built the whole protocol in the OT hybrid model so we would like to get UC security and it's not really clear. If you look at this protocol here it's not clear if you can actually extract E and R from this encoding W at least it's not directly clear. So the extraction against party one is the protocol, if the protocol succeeds the simulator will get the correct encoding of the result, A times equals R. And it also gets the complete encoding that party one enters into the OT. And then it can simply subtract the noisy version with the non-noise version. So for each noisy position you have two values. And this allows you to basically remove this random mask here and then the simulator is able to compute the value B and once the simulation has the value B it can also compute the value R. So that's the extraction idea against party one and against party two because we simulate the care of energy we simply learn the complete set L and then encode the encoding. So there's one additional problem here this extraction only works if party one doesn't manage to add errors only in noisy positions so if there's an error in the noisy position the check with the polynomials will always lead to an abort of the protocol but we could imagine this scenario where party one manages to add errors in noisy positions and this is not checked by the polynomial because the obvious party will never see any noisy position. So one main result of our paper is that if adversary manages to add more than a number of errors in the noisy positions then it can already break the assumption of the encoding and that is the leakage problem basically if party the same problem in party one chooses inputs that are not checked by the check it can ruin the subset of this set L and we show that if the adversary manages to extinguish the encoding from pseudo-random given this leakage it can already distinguish without the leakage. Okay so I want to highlight some other applications for this we have in the paper the construction of an efficient of this polynomial variation protocol efficient in the sense that we have order of the degree of the polynomial of communication that is probably optimal in the sense that if then in the UC setting then recently we had a CCS paper which uses this OLED as a black box and we go as only constant number of these modifications per authenticated multiplication and also it's statistically secure so the communication overhead of this paper instantiated with the OLED that I just presented is lower than the current but the previous best and quite recently we put a private set intersection protocol which also makes use of this OLED also statistically secure and has an asymptotically optimal communication overhead so there's a lot of possible applications for this OLED and the additional actively secure OLEDs might lead to the efficiency improvements in a lot of different areas thank you so the security assumption that we use is as I said this this noisy resolvment encoding that this is actually pseudo-rad that is right now we don't know a way around this because if you so there was a recent paper at crypto where they built a noisy encoding from LPN from an LPN type assumption but this doesn't give you this multiplication property that we need so if you use an LPN for instance if you use an LPN noisy encoding we don't know how to get this constant overhead for full multiplication so they only get a vector OLED basically where you have one one party has a vector as an input and the other party only has a scaled up and we want to multiply two vectors so that's why we we actually rely on this retall encoding so it's a it's not as good as LWEL or LPN my question is do you think this could complete with a math problem we believe yes so from a computational point of view we have only log n basic field operations per multiplication and we already know that from a communication point of view the overhead would be less than a basket so typically communication is the bottleneck in these two party computation protocols other questions? ok thanks the speaker again


HBCU Digest Radio, welcome back to a special edition of the podcast with our conversation with distinguished leaders from historically black colleges and universities across the nation. And today we are joined by the newest leader of one of our esteemed HBCU's Norfolk State University. She is the new president of Norfolk State, Dr. Javon M. Adams Gaston. Madam president, hopefully I'm the first person to say this to you, but congratulations. Can you tell us, what are your feelings right now to be appointed as the next president of this great school? I'm truly honored and humbled. I am elated that I have been selected as the new president of Norfolk State University. And I feel so encouraged by all the things that we are going to do together and the successes that we will have. What was it about Norfolk that indicated to you that it was a good fit? I mean, not only just through the announcement, but through the interview and application process getting to know the campus and some of its assets and some of its strengths, what about it was appealing to you? There are a number of things. One, and the first is the trajectory of Norfolk State University. It really is seeing its way forward. And it's a 21st century university, really thinking about what are the ways in which we can assist students, help them to meet their goals and to be prepared for all the things that they're going to need to do in the 21st century. Some of their new programs, the cybersecurity, the cybersecurity, all of those things that are happening in Nanotech say that we're really forward-facing, thinking about ourselves in the world. You mentioned cyber psychology is one of those institutional strengths in your psychologist by trade. Is there any leadership benefit in having that particular professional background for which I'm biased because my wife is a psychologist. So I know what it's like to be walking around with your mind red all the time. How has that kind of helped you in your career? Has it been something that's helped you in your strategy of leading people, leading divisions and departments? And do you see that translating over to Norfolk State? So I really believe that the work that I did when I was practicing psychology, which I'm not now, was really about helping individuals create positive change or groups or couples. That expanded to organizations and how do we move an organization forward with positive change while it looks at what are the opportunities that it has as well as the challenges and how do we help move beyond the challenge with excitement and with a sense of purpose? Part, most of your career has been at really high level, high research intensive institutions, University of Maryland and most recently at Ohio State, leading a number of divisions in direction of student affairs. And is this something that you think is going to be helpful coming to Norfolk or do you expect that there would be some things that you have to learn about HBCU culture? I know a school is a school, but to go from one with one set of resources and one kind of culture to another is there a transition in doing that? I love the heritage of the HBCUs and many members of my family attended HBCUs, my son went to an HBCU, my sister was faculty in HBCU and I have an aunt who actually graduated from Norfolk State University. So it's part of my DNA and it's part of what I respect and honor. I think that one of the things that has been a hallmark of my career has been looking at students no matter what size the institution in terms of their individual growth and development. That really what we're intending for every student, even when you're in large institutions or whether you're in a smaller institution is to ensure that every student have a quality experience. And that is the turning point for how we help our students in their success. That happens in the classroom with the curriculum and with the faculty. It happens outside of the classroom with the activities and with the organization and with the mentorship that they receive. It really is about the quality of every student having an extraordinary experience. And then just to round out, I know you've got so many interviews and so many people you got to talk to and we really appreciate your time. But just the final thought, on day one when you officially take the helm of the school, who do you anticipate will be among the first people to whom you'll speak? And what do you hope to tell them and what do you hope to hear from them that you think will get you on a strong start to your tenure? I hope to have the opportunity to talk to and meet with the entire community. I'd like the students, the faculty, staff, the alumni all to know how important they are to this institution as well as our community. And so I hope that we will have some opportunity to at least have representative members as many individuals as we can to begin having some conversation and discussion about our bright future here at Norfolk State University.


As a retired teacher, I appreciate the education and compassion I received from the Breast Health team at Bend, Michigan Health during my breast cancer treatment. Although I had cancer in only one breast, I had a double mastectomy. My sister was diagnosed with different types in both breasts. If that occurred, I knew I didn't want to have to go through it again. I had a biopsy with radiologist Dr. Lindsey Zeeb and surgery with Dr. Kelly Worsing. They were thorough and informative. I liked them both, but when I saw the ultrasound, I didn't like the look of the tumor. It surprised me how it looked. I did a lot of research, so I knew a lot of questions to ask. I liked the fact that I could have surgery and treatment in Midland. It was great. The nurses were all very nice and helpful. With chemo, I didn't get sick, just very tired. And I lost my hair twice when I reacted to the first chemo, and they had to switch treatments. But my hair has grown out, and it's almost as long as it was. I live with my husband, Alan. He's been great. He did all the housework, cooked, and did everything when I wasn't feeling well. I've got a lot of stamina now, and I'm even doing most of the housework again. When I feel tired, I just sit down and rest. I'm back to exercising, and I can do six and a half miles on my recombent bike at level four. It's a big improvement since I started out at just 10 minutes. My wish for all women is to get their yearly mammograms and do their monthly self-exams. I only felt a thickening in my breast, and I wasn't too concerned about it because I had dense breast tissue. But I'm glad the mammogram worked, and I was able to get it taken care of.