Hello everyone, this is Ahmed Dan of AhmedDan.com Today I'll have another episode of Toronto Walk video and I'll be walking in heavy snow starting from Danlicky Way and Queensky and we'll continue along this way So if this is the first time I repeat visit Thank you for your support On this channel, I'm always trying new and different ideas If you appreciate variety, please subscribe and come back for more So the weather turned out to be very snowy and it's snowing heavily right now and I decided to do a walk video in downtown Toronto because I've been trying to do a walk video in heavy snow for a while but you know, I didn't have the chance to do it because when there was snowing either I was at work or I was not available So today looks like I have the opportunity and it's heavy snowing right now and actually I have an umbrella in front of me to protect the camera from covering the snow but although I do not need the umbrella but it would be a little bit easier if I have... I don't have to clean the lens or there's no water dripping So you can see that everywhere is white and we're just walking along the marina and I'll try to walk as much as possible We'll see how far we can walk but it's kind of difficult to walk because of the snow hitting the face although underneath the umbrella but it's not 100% protection So let's see how we can walk or how far we can walk and how long we can walk and I'll talk once in a while but enjoy the snow beauty and this is downtown Toronto It's snowy and everything is covered by snow The temperature right now is minus 7 degrees Celsius So it's not like crazy cold It's cold but it's not like minus 30 or minus 40 So you're looking at the marina right now and you can see that all the boats and everything is white and even the streets, they're all white So let's continue walking and I'll just talk once in a while So I have to walk very carefully I'm sleeping occasionally but still I'm able to manage not to fall and it's very difficult to walk in the snow and this road, they don't clean up because this is kind of like an inside road It's not a main road So once we take a turn then I'm expecting a little bit lesser snow on the road So the garden you're looking at on the left is the Toronto Music Garden and this is just next to the marina So I have an umbrella on my left hand and a camera on my right hand So you're going to see occasionally the umbrella sticking in and unfortunately I cannot control that Sorry about that but I'll try to umbrella up the way as much as possible and if you look on the other side of the lake it's not visible because of the snow and fog So I have a feeling that at one point the battery is going to die I have another battery because in snow the battery you know, depletes very fast So once I change the battery then I'll see how much farther I can video So here look at the street So this street is slightly better than the other one but still a lot of snow If you see camera movement or shakes due to me balancing myself from sleeping So I'm going to change my hand I have an umbrella on one hand that's kind of getting numb and I don't have gloves right now So let me just change the hands Okay, so I switched my umbrella is on the right hand right now and the camera is on the left hand So you can see the park This is the HTO Park in Toronto and I feel like down there's some snow on the face of the camera So you might see some droplets but I think if I clear that it's going to be the same way again, so I'll just leave it So let's look at the side here this street we are walking on I slept a few times but looks like you know, I was able to manage falling So I'm taking very small steps There are certain procedures and rules to follow So we are walking slow and one of them is that short steps instead of long steps So we are passing at Tim Hortons It would be nice to go inside right now and have a cup of coffee but it's not possible So I'm facing the other challenge right now which is my fingers are getting frozen but let's see how much farther I can walk It's a beautiful view although it's difficult to walk on the street, feels a little better to walk, looks like the power salt and cleaned ice before So you are looking at CN Tower but you cannot actually see it because of the snow but CN Tower is right between these buildings I'll try to see if I can get a better view but I doubt that Here's a coffee shop So CN Tower should be right here but the thing is you cannot see anything If you turn on the street then you're going to make a left turn on York Street Just to show you that I see lots of bars here Looks like they're having some type of party probably someone gave food Pass this here and you can see that there's a street park So we'll just wait for the street car to pass Actually we got the light so we don't have to wait So let's just pass So this is the main road and you can see that it's clear because whenever there's snow the trucks came out and they're clear Looks like no one riding bikes today Most of them are here So we're going to take this street This is York Street and we'll continue this way So I'm going to have to switch my hands again So just switch my hands So if you take a look at my jacket and bag See this is not the situation I'm just going to use this place to avoid snow for a minute Try to get this walk sign We have 6 seconds It doesn't look like any cars coming Let me just wipe the lens a little bit 15 York Street Maple Leaf Square Missed this walk signal but let me show you around here a little bit Scotia Bank Arena Vehicle cleaning up snow Vehicles are heavy and heavy when they remove snow and put salt Looks like there's no one here So I'm just going to cross the street I cannot walk I mean stay too much longer in snow So that small vehicle is cleaning here Just wait a little bit Some shelter ahead for maybe 5 minutes which will protect us from snow The cars are a bit numb but for strange reasons they don't feel that bad right now So here you can see that it's a bit cleaner and let's just walk underneath the pathway This is the Indian Station So this is where you come for GO train, subway shuttle to the airport GO bus everything So let's just pull the door So here's the train schedules So looks like they are running on time Inside the building It's not fully inside but partially within probably couple of minutes again So this is the Indian Station food court Web sign to open the door and again we are out in snow I think it should be University Avenue Actually no front street ahead of us So let's just keep walking And on our right here is the Indian Station So this is a huge station So looks like we got to wait for the walk sign again So let me show you just a bit of Indian Station On our university avenue at front street west So you are going to just go straight here and we are just waiting for the walk sign We are feeling lesser cold and fingers feel bit better, not sure why We got the walk sign This looks like a big two mountains I've been here a few times So corner of Wellington street west and it should be on York Street We got the walk sign Bike shares, here is the snow I'm going to switch my hands TD west tower So it feels like sometimes here sometimes it's getting lighter But it's still a steady snow And I was checking the weather It looks like it's going to snow like this until 3 o'clock But you know, weather always changes So this is the corner of King Street west and York Street And I think at one point York Street is going to end So you have to turn But we'll see So let me just show you around a little bit It looks really cool here No snow side walk So I'm just going to utilize this and walk Amazing city, amazing view So this is the corner of Adelaide street And it's still on York Street The walk sign So let's try to catch that I'll show you a little bit here So I may be able to complete one hour snow walking Let's see what happens The battery is at 50% So I may even not have a battery So let's see The fingers are doing a little bit better They're still numb, but not like frozen A little bit doubtful about the audio system I have dual audio So hopefully if one doesn't work the other one should be okay I think it's very unlikely that both of them are filled So this is the corner of Richmond street west and it's still on York Street So as I mentioned York Street ends right in front And we're going to turn right And let me just show you around a little bit So you've got the walk sign So we are hitting Queen Street west And that's why I'm going to turn right So the fingers feel frozen again Not sure why But this is Queen's Park And you can see that we have a beautiful view So this is the Nathan Phillips Square Lots of interesting things going on here including ice skating But I don't think anyone is there today but we can check it out So I'll try to cross the street here in the middle of the street I don't want to go too far And it looks like I got an opportunity This side is empty as well So this is the Nathan Phillips Square And let's just go in a little bit Okay I just prevented from another fall in our standing But I'm going to switch my hands Okay now the umbrella has slipped So we have a fast food restaurant here for fast food stalls What is buying anything today That's a bit too that you know these guys are open I'm showing Queen Street west and Bay Street It's a big intersection The old city hall Getting the Eton Mall on our left over there So this is 60 Queen Street west The old city hall So what happened My hat came out or my beanie So I have to wear it back Because it's just too cold to have nothing on head So this is the Eton Mall We are not going to go in today This is the Hudson Bay display Every year they do this for Christmas And I actually came yesterday for a video of this which I haven't posted yet The Eton Mall Hudson Bay on the right which is also sacked by this avenue So I'm going to have to follow my umbrella for a second How my bag looks again in my jacket So we are on the corner of Young Street and Queen I'm just waiting for this light here So just go a little bit farther Looks like I'm still doing okay with the battery And I should be able to finish one hour with one battery Okay time to open the umbrella again Okay let me just wipe the lens a little bit We have a charge here This is called the Metropolitan United Charge And you can see that this is really a very old charge So this has been a very good one hour walk I slept a few times but I was able to manage not falling And also partly frozen or numb Actually I got a black squirrel So let's see if we can get a little bit closer But I think he's gonna run away Yeah he's looking at us Actually he's coming this way Okay now he knows And he's gone He's sneaking out again Actually I see some birds here You can see them They ran away This is a beautiful bush and trees And all the benches So this is the corner of Queen Street East And let me see what street is this So Church Street and Queen Street East Let me just show you around a little bit And we'll just go to the front section of the charge A little bit And that's where I'm going to end my video So here's how it looks It looks beautiful Everywhere is white and white But right now I feel there's not much wind We are almost At the end of the battery life cycle And looks like the video has passed One hour And I'm just surprised how far I have come From my Condo in downtown Toronto to other part of Downtown Toronto So I've been walking for one hour Continuously And I prevented Able to Sleep Or no big Mistakes happened So everything went smooth for this video So Thank you for watching this video On this channel I'm always trying new and different ideas If you appreciate a variety, please go ahead and subscribe There will be more videos coming up So I'll see you shortly Thank you


How to build, launch and grow a profitable online store. Hey guys, you've come to the right place if you wanna watch a video on how to build an e-commerce store. Now, I will tell you there is a lot of money to be made in e-commerce. I've made literally millions of dollars over the years in e-commerce. But I will tell you this too, it's a lot of work and it's a lot of planning and there's certain steps you need to take.  Let's get going. Now, don't forget also to subscribe, hit that subscribe button down there, don't forget to ring the bell. Turn on all bell notifications so you're notified every time I go live or I do a new video. And if you like this video, do me a favor, give a brother a thumbs up, I would really appreciate it. Okay, so let's jump right into this and let's pick step number one. Okay, number one is choosing a product. And this can be one of the most difficult and challenging parts to selling online. You've gotta decide if you're gonna sell it to the end user, if you're gonna sell it to a wholesaler, what exactly are you going to do? That has to be decided right up front. Now, once you've decided what your market is, and for most of you, it's gonna be from you selling to an in-use consumer, not too many of you are gonna be doing wholesalers, so I will focus a little bit more on that. But once you've done that, you've got to actually research that product.  I also wanna cover where you're gonna actually get those products from because that's pretty important, too. I think the very most important thing you're gonna do, though, is research your competition. Take the name of your product, whatever it is, put it into Google, and find out who's selling that product. Look at Facebook pages, look at who's got Facebook pages, see what they're doing with that particular product. Look at social media, is it on social media? Chances are there's some people out there who have already figured out how to sell the product that you wanna sell, and with just a little bit of research, you'll know exactly what to do, too. Now, the next part, so many of you skip, but please don't, write some sort of business plan. I think that's so very important. Now, here's the thing with business plans. A lot of us say, well, I don't wanna write a business plan because I'm not sure how it's gonna work out, and I can't write everything down until I figure out how it's gonna work out. Well, I can tell you how it's gonna work out. It's not gonna work out very well unless you have a plan and you know what direction you're going. That doesn't mean you can't change your business plan on down the road. I know I changed mine many, many times, but I at least had a plan going into it. Now, once we've got that product picked out, we've gotta actually set up our business. We've gotta actually decide what kind of business are we going to have. We've got to actually come up with a name for our business, right? That's the tough thing. I actually do have the website, jrfisher.com, but my main business is Survival Cave Food, and I came up with that name kinda just out of the air. It's now actually a Google search term, but many years ago, I didn't know what I was doing, so I just picked it, which was probably a bad idea, but now it has worked out. So sometimes things do work out in your favor. But once you've picked a business name, then you've gotta get a domain name. Is your business name gonna be the same as your domain name? For example, iownjrfisher.com, it's my name, but that is actually run by Digital Enterprise Marketing, which is the actual parent company. I never used the name Digital Enterprise Marketing, but that's the actual business license. The next part is actually getting a logo. This is way over thought, way, way over thought. I see people spending days and weeks and maybe months working on a logo. It really doesn't matter. I'm gonna tell you that right now. Logos just don't matter. If you think of Nike, they have the swoosh and that doesn't really tell you a whole lot doesn't. So don't overthink this logo thing. I would tell you to make it more simple than complicated. And a logo is like everything else, guys. Don't worry, you can always change it later on. You're not gonna have the branding of Coca-Cola anytime soon, so I think you're gonna be okay. The next part I would tell you to study a little bit is SEO, search engine optimization so that your pages can actually get found. Now I've got a lot of videos on this channel. You can search SEO on this channel and you're gonna find a lot of other videos you can go and watch about search engine optimization. But it's really important. I think this is a step a lot of people skip is they don't put in the titles for their pages. They don't put in the meta tags. They don't put in the descriptions. And quite honestly, without those, Google can't go out and find your pages and show them to people. So this is really critical that you do this. I won't spend time on this video about that, but go to one of my other videos and watch SEO videos and you'll learn exactly how to do it. It's not hard. The next part is building your store. Where is it gonna be? I highly recommend Shopify. I will have a link in the description below where you can get a Shopify account. But Shopify is a really good store if you're doing e-commerce. It's designed for it. It's one of the biggest e-commerce platforms that's out there. You also will need an email provider. I highly recommend Cartra. Cartra is amazing. It does everything for you. It does sales pages. And quite honestly, you can get Cartra before you get Shopify and test some of your products with sales pages in Cartra. And then once you find some that are working out, then you can actually build out your Shopify store. At this point, I think it's time for you to think about how you're gonna market these products too. That's super important. What channels are you going to use? Are you gonna use social media? Are you gonna use ads? Are you gonna try to depend on SEO? I would not try to depend on SEO in the beginning because that takes a long time to build up good SEO. However, these other channels are really important. Social media is really important. Maybe you've already got a following. Maybe you've already got a list that you could actually market your products to. If you don't, it's not a problem. A lot of us start with no list. I started with zero people. But you can also think about maybe doing posts in social media where you give people free content. Maybe you're gonna be selling fishing supplies and maybe you've got some downloads on the best ways to do fly fishing. The best way to do deep sea fishing. The best way to do open lake fishing, you know? And you can give some of these downloads and start to build your list. Once you build this list, you'll have somebody to market to.   I highly recommend drop shipping in the beginning because that way you don't have to invest in inventory. You can do print on demand. You can do a POD where they actually ship out all your shirts and hats and whatever it is you're gonna sell. And I think that's the best way to go in the beginning. You do wanna set up your KPI. If you don't know what that is, that's key performance indicators. So a key performance indicator may be I need to make 20% profit on my T-shirts. And you wanna make sure you have something in the beginning to go by. I know in the beginning you're not gonna know. I mean, you're gonna say, well, gee, I don't know. Do I make 20%, do I make 30%? KPIs can be adjusted later on. So once you've decided on 20% and you see you're making 28 or 30%, you can certainly adjust it and say, well, the rest of my products, I want all those to make 30% too. The trap you get into here is a lot of people will start to sell very expensive items on down the road and they're still trying to make their 20% or 30%. To give you an example, my survival food company, maybe we make 30% on a $159 case of meat, but if we sell a year supply, maybe we only make 18 or 19%, but that sale is $5,000 versus $159. So I don't mind doing it. It's the same amount of work and I make a whole lot more money. The KPI is gonna be different for that high-priced product though. Now of course the next step, get a customer. You gotta figure out how to get a customer, right? And I wanna talk about that a little bit in this section because getting your first customer is so important. I remember when I got my first sale, I was so excited, I'm like, oh my God, I sold something online. Somebody actually sent me money. It's a really cool feeling. And once you do that and once you sold something online, you kinda get bitten by the bug where you're like, I can do this. I can actually make money online. I can do what other people are doing. I'll tell you the number one fear that I see people have in the beginning is that they're afraid they're gonna lose some money and unfortunately, you probably will. I would suggest getting more training on this subject. I mean, I can't cover every single thing in this one video about how to set up your store. I can tell you advertising is really good. If you've been trained how to advertise, I do have a course below called Facebook Ads University. If you wanna learn how to do Facebook Ads, it's a great course. I would certainly tell you do not do Facebook Ads, do not do YouTube Ads, do not do any ads without getting some training first. It's way too complicated but you're gonna need to know how to do it. Ads are super important to building your store. Yes, you can do stuff through social media, you can use Twitter, you can use Facebook, you can use YouTube and you can do some posts there. It's gonna be a lot slower to get going there and quite honestly, places like Facebook aren't gonna wanna show your posts where you're trying to sell something without buying an ad and technically in their terms and conditions, you're not supposed to post anything to sell anything on their platform unless you're actually running an ad so you gotta be really careful with that. I've seen a lot of people lose their Facebook accounts. I know I've lost Facebook accounts myself so I know that can certainly happen and Facebook is not as friendly as far as letting you know why or what you need to do or what to change. They just cancel your account. So another thing you can do is what I'm doing right now, I'm doing a YouTube video. In the bottom of this description here, I have some affiliate links. I have some links to some of my products and by doing these content videos like this people learn from me, they learn how to do these things, they're more apt to click on one of my links down there and actually buy some of my products and that's certainly a great way to go. Now this is a basic blueprint to get started. Like I said, I can't tell you every single thing there is about running a business online. It's way too complicated in this one video but you've got the gist of it now. You've got the base overall of what you need to do. I would suggest if you want some more free training, just go to my channel, search in the search bar for any subject you want, whether it's advertising, whether it's YouTube, whether it's SEO, whether it's building a WordPress website, whatever it is, start getting educated. I think that's so very important. I've literally have watched thousands of videos on how to make money online and I've made guys close to 900 on this channel alone so that's quite a few. Depending on when you're watching this video it could be in the thousands but right now it's below 900 and I never would have guessed a few years ago I would have that many videos. In the beginning they were terrible. They weren't good, okay? It took me a while to get going and that's another thing I would tell you. In the beginning you're gonna be really worried about making mistakes. You're gonna make mistakes. It's just the way it is, okay? So get over that, make your mistakes, try to get some training, use my channel with 900 videos or not quite 900 but it's getting there. With that many videos you can learn something and you can learn it for free and if you wanna accelerate your learning check out some of my paid training in the description below. I hope you enjoyed this video. I hope you got a lot out of it so give me a thumbs up down there. I would really appreciate that. You may still have some questions and if you do I would like for you to post those in the comments below. Whatever questions you have about building your online business feel free to put it below. I've literally sold millions of dollars of both digital and physical products online. I do this stuff every single day. I don't just teach. I actually sell products online every day and I'll be happy to share that information with you. I hope you liked the video. If you did make sure you subscribe. If that subscribe button is red down there you need to click it, turn it gray and when you turn it gray you need to ring the bell. Turn on all bell notifications so you're notified each and every time I do a new video. Thank you so much for watching this video and I'll see you. Oh wait, there's a free course. I just thought of it. My God, there's a free course. Down in the description there's a $97 course you can get. Grab it because it's free right now. I'm giving it away free. Grab that course. In addition to that, like I said I got a lot of other videos. Check them out. Thanks so much for watching this video and I'll see you in the next one. Don't forget to subscribe to my channel and click that little bell right here so you can be notified every time I do a new video. Also, click on one of those videos there. Keep watching on my channel.


Good morning, John. It's Friday. On Wednesday, I asked Twitter to pick between three different video topics, and boy, were there a lot of people who didn't want to hear about any of them. But one of the tweets that got the most likes was this one. How about D? Puppies. So this video is entitled, Top 10 Best Dogs Ever. And if you are unsatisfied with this content, then blame the Steffie, or any of the 31 people who liked her tweet, including me. Let's begin number one. Stubby, a dog who served the Allies in World War I. After being exposed to chemical weapons and then recovering in a hospital, Stubby became attuned to the scent of these chemical weapons and could alert soldiers before they could smell the gas coming. He was wounded twice, he served in 17 different battles, and he captured a German spy recognizing him by his language. An act for which Stubby was promoted to Sergeant, outranking his owner. Number two, Lily, a pit bull who pulled her unconscious owner off of the railroad tracks because there was a freight train coming. The owner did not get hit by the train. Lily did. The poor puppy lost one of her legs, but survived. And if you think that story is remarkable, check out number three.  Second, another dog, this hero dog, drags the dog that has been hit by the car off of the road. Like wanders out into the interstate, pulls the dog off. I'm not showing you the video because it's pretty graphic and terrifying, but I don't know, like why is this dog doing this?  Speaking of dogs rescuing people, there are so many wonderful stories of dogs rescuing people. We have this cat, who is clearly a cat, but is nonetheless a very good dog. Number five, in the 1950s, some Russian scientists went out onto the streets of Moscow to collect stray dogs thinking, these dogs, they're obviously used to extreme circumstances. They tested and trained these dogs, and one of them, Leica, was sent into space and became the first animal ever to orbit Earth.  Not how we wanted that one to end. You know the first animal that went to space? It's a fruit fly. Number six, Alvin and the chipmunks. I know you think I'm crazy, but it's a little known fact that the actors who played Alvin and the chipmunks in Alvin and the Chipmunks, the squeak wool, actually very small dogs. Nope. Number seven, Bummer and Lazarus, who are two dogs, but we're just calling them one, sorry. These dogs didn't just survive mid-1800s in San Francisco, where stray dogs outnumbered people and were killed and poisoned regularly.  Bummer and Lazarus were eventually exempted from local laws, and they showed up all the time in cartoons about San Francisco. They just sort of be there in the background. Number eight, this dog, which somebody sent me on Twitter. I'd ask people to send me dogs on Twitter, so I picked one. It's real cute. It's a good dog. Number nine, Tweety Bird, who is a canary, and canaries are birds, but they are named after the Canary Islands, and the Canary Islands are named after the Latin word for dog. So, by the transitive property, Tweety Bird is a dog. Boom! Number 10, my dog, Lemon, who passed away this year, and as we all know, the best dog is your dog, and there's nothing wrong with that. Hey, I understand why a lot of people wanted me to talk about puppies today. It seems like we're in a much more tense moment than we were a couple of years ago, and it does seem like that's gonna get worse before it gets better. We're being asked to pay attention to a lot of different big things all at the same time. The way that we're fed content about what's going on in the world right now is inefficient, and it's overwhelming, and it's manipulative. Too frequently now, the people who are tasked with trying to inform the public are trying to win rather than trying to inform, and that is something that I'm getting super sick of. But there are still good dogs, and there are still good people, and in the coming years, we can't choose between taking care of ourselves and taking care of our world's problems. We have to do both of those things. John, I'll see you on Tuesday.


Think about it, the pace of change has never been this fast, yet it'll never be this slow again. There's enormous opportunity and enormous potential in that realization. Technology has always brought such promise. A better standard of living, new innovations, remarkable products. Consider the progression from steam power to electricity to computers. But it also brings dramatic shifts in our social, economic and political cultures. This current step involving automation and AI as the obvious examples will totally revolutionize the world of work and in many ways it already has. As business leaders, I know that you view these both as both exciting and challenging achievements. You're rightly anxious about how quickly our existing business models are being disrupted. Still, if you're anxious, imagine how the folks who aren't in this room are feeling. Workers, people who aren't seeing the benefits of economic growth. Regular women and men who are trying to grab a rung on the career ladder, never mind climate. For them, technology is a benefit to their personal lives, but a threat to their jobs.


Now, when we talk about the Rocky franchise, what was your favorite movie, Rocky? Probably four. You know what I'm saying? Four I think was the one I kind of like watched the most. And then went back and watched the first one. So I think four on one. Probably my favorites. And then obviously the creeds are, I'm biased for me. Yeah? Favorite Rocky gotta be when he said, Adrian! Adrian! How's that?  You can't do it, Rock! I was like, listen, Ole, bro, you go check out me. You go check out Rocky. Rocky in here.


Hello, everyone. I'm Xihang, a PhD student from Hamphill Center for Information Security. This presentation is about a multi-party continuity test for threshold-private-set intersection joined work with Pedro Branco and Nicole Dutley. Here's a brief overview of this talk. I'm going to start with the background and the motivation of private-set intersection. Next, I will show our results in this work and relations with concurrent work. Then I will show the challenge we met and our approach to get around it. At the end, I finish the talk with a short summary. Let me briefly explain what is a private-set intersection. As an example, say there are two companies denoted as Alice and Bob respectively. Holding their own customers' contacts denoted as SA and SB. They would like to know who are their common customers so they can cooperate with each other without leaking other own customers' information. So basically, they require a protocol along each party to learn the intersection, but nothing else. This is called private-set intersection or PSI. Today, we are more interested in a special setting of standard PSI called threshold PSI, which means parties only learn the intersection when it is larger than some threshold, otherwise they learn nothing. Here is a great example for threshold PSI that is luxury. Suppose there are two people who would like to go to different destinations and they want to share a ride from Uber, so they need to know which path is common for both, but they don't want to leak their own unique secret route. Basically, they require a following protocol to achieve the goal. If two paths intersected substantially, they learn the shared path and could agree on what sharing. However, if two paths are barely intersected, they learn nothing instead and much than neither would share it. So here are related works for threshold PSI. Gauche and Simkin in crypto 2019 gave the first two-party threshold PSI protocol, which communication only depends on the threshold instead of the set size. I will briefly explain the scheme later. Generally, in high levels, their protocol can be divided into two phases or two parts. The first part is a kind of netted test step. The second one is an intersection commutation step. The second part can be extended to multi-party easily, so we only focus on the first step in this talk. That is a kind of netted test for multi-party. Now I show our main results. Our main result is a multi-party kind of netted test, which allows parties to check if its intersection is larger than n minus t for some threshold t. Here, big n is a number of parties, and small n is a set of size, and t is substantially smaller than n and small n. Our approach only requires thresholded additively homomorphic encryption instead of a fully homomorphic one. That's why we only realize weaker assumptions such as DDH or DCR, and we achieve a t-square communication complexity for each party. Actually, there's a concurrent work, b and r24 of ours, also considered the same problem in multi-party setting, but they focus on a slightly different variant, which complements ours. Specifically, we focus on the case which allows parties to learn the intersection and only if the difference between the union and the intersection is smaller than g. Whereas ours is to learn it if and only if the intersection is larger than n minus t. Now let's move to the technical part. First, we curve the two-party particle from GS19. Suppose two parties, Alice and Bob, holding a set as a and as b, of size n respectively, without losing generality, we assume both sets are of the same size. So the problem is they want to know the intersection if and only if the set difference is smaller than some threshold t, where t is much smaller than n. The main observation of them is the set reconciliation techniques introduced by Minsky can be leveraged in this case. That is, each party encodes their own set as a polynomial like this. So for each element aj from s, your s is their own set. The polynomial is the product of all the terms of x minus aj. Now two parties, Alice and Bob, have two polynomials, pa and pb, while encoding their sets. If we compute pa or pb, then the common factors of two polynomials, which are corresponding to the intersection, are cancelled out. Finally, it's only a rational function left with low degree. A low-degree rational function means its numerator and its denominator are of low degree polynomials. Here it means pa minus b and pb minus a are two t-degree polynomials, where t is a threshold. Therefore, both parties can firstly compute all of the t evaluation points of the rational function pa over pb. Then one party, say Bob, can recover the denominator via interpolation, which will review the intersection when compared to his own set. Of course, Bob should not learn the numerator pa minus b. Otherwise, the security is compromised. As Bob, we also learn the whole set of Alice, which is forbidden. In GS19, they use a oblivious linear evaluation for OLE to mask the numerator with a random polynomial to hide the information. So far, we only discussed the second part, which is how to compute an intersection. It can only be proved when the intersection size is larger than m minus t. Otherwise, the proof of security will fail. That's why they still require a cardinality test to make sure when the compute intersection size or its cardinality is large enough. Still, let's first consider the two-party cardinality test in GS19. They encode set elements into the exponents, say for each element aj or ai. They encode the set as a polynomial qx equals to sum of all of x to ai. As then, the security check is the difference of two polynomials, qa and qa minus qb is sparse polynomial. Sparse polynomial means the polynomial has much fewer terms compared to its degree. Here, any of qx might be a polynomial with exponentially large degree, whereas it only has t terms or t monomials. Of course, here we need some secure computation to do a private check. Finally, if the resulting polynomial is sparse, we conclude that the set difference is small, which passed the cardinality test. Otherwise, it doesn't pass the test, and both parties will just abort the protocol. However, if we were to directly extend the approach to multi-party setting, we would let m parties compute m minus 1 times q1x minus q2x to qnx. This is a sparse polynomial only if n times t is small, because the resulting polynomial has n times t terms if the intersection cardinality is t. Thus, the communication codes for each party will depend on the number of parties n, which is highly undesired. We need to seek for other solutions. For simplicity, let's first consider the insecure way of our approach to do cardinality test. We use the original encoding set for an n-sized set. We encode it as an antiquated polynomial. Then suppose there are n sets from s1, s2 to sn. We encode them as ps1 to psn. If we compute the original function ps1 plus ps2 plus 2 psn over ps1, after we cancel it out, common factors resulting in original function has degree t at most if the intersection cardinality is larger than m minus t. This actually helps us to get rid of the number of parties n in the computation. Therefore, the cardinality test boils down to the following problem. Given a rational function f of x equals to p1 of x over p2 of x, can we decide if degree of p1 or degree of p2 is smaller than t with only t evaluation points of f of x? We give an affirmative answer in this work. Our crucial observation is that if we interpret f of x equals to p1 of x over p2 of x, where f of x is some unknown reduced rational function, which means p1 of x and p2 of x are co-prime, they don't share any common factors. So if we interpret this f of x on two different sports sets, say v and w, so each one of size all of t, we will get two different interpreted functions fv and fw respectively. Then we would have if degree of p1 equals to degree of p2 smaller than some threshold t, our interpreted functions fv equals to fw. Otherwise, if the degree is larger than t, then these two interpreted functions are different. Say fv will not equal to fw, except with a negligible probability over the uniform choice of vi and wi. Moreover, interpreting a rational function can be reduced to solving a linear system of equations by extending secure linear algebra tools developed by KMWF07 to multipartic case, who can perform the degree test revealing nothing else than output. Note that we also need to randomize numerators of the rational function, which is not for security, but for the correctness. We prove our security, we prove the security of our protocol in externalized UC from work. The standard UC from work has a subtle issue that because the inputs of our sub-porticles are encrypted under a public key, which needs to come from somewhere in the UC setting, so it's some kind of definitional problem. So this is also mentioned in the concurrent work BMR21, and they get around this by only proving the final protocol instead of the sub-porticles. We choose to prove the security in a generalized UC from work, externalized UC from work, which has a global setup of public key infrastructure, so we can get around this subtle issue. To make a short summary, we developed a multipartic cardinality test for threshold PSI. This communication only depends on the threshold for each party, without relying on the number of parties N. Our construction is built up, it only relies on additional homomorphic encryption, which is much weaker than fully homomorphic ones, so we don't require let's say assumptions. That's all, thanks for your attention.