10.6092/issn.2038-3460/17429
This paper aims to study the data assemblage of three centres of calculation which produce and use big data for social research. By unfolding how big data are produced we want to compare and contrast different aspects of data construction, management and exploitation. The results are drawn from focus groups and in-depth interviews of data experts. Respondents were interviewed about the activities of setting objectives, design decisions and choices with respect to expert languages, influences, constraints, debates with actors internal and external to data assemblage. The analysis presented in the paper focuses on the methodological activities run in the assemblage, and on subjectivities and communities involved in big data.
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2038-3460
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Biagio Aragona
https://creativecommons.org/licenses/by-nc-sa/2.5/
Tecnoscienza – Italian Journal of Science & Technology Studies
data interoperability
Big Data from Below. Researching Data Assemblages
Text.Serial.Journal
https://tecnoscienza.unibo.it/
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Essays
2019-07-16
2023-06-26
2019-07-16
2023-10-05
51-70
TS
Biagio Aragona
2019/07/16
10.6092/issn.2038-3460/17429
51
University of Naples “Federico II”
2038-3460
1
data interoperability
en
70
Big Data from Below. Researching Data Assemblages
https://tecnoscienza.unibo.it/article/download/17429/16279
10
                                                                                                Essay
                                                                                                    51




 Big Data from Below
 Researching Data Assemblages

               Biagio Aragona                                Cristiano Felaco
           University of Naples “Federico II”              University of Naples “Federico II”



    Abstract: This paper aims to study the data assemblage of three centres of
    calculation which produce and use big data for social research. By unfolding
    how big data are produced we want to compare and contrast different
    aspects of data construction, management and exploitation. The results are
    drawn from focus groups and in-depth interviews of data experts.
    Respondents were interviewed about the activities of setting objectives,
    design decisions and choices with respect to expert languages, influences,
    constraints, debates with actors internal and external to data assemblage.
    The analysis presented in the paper focuses on the methodological activities
    run in the assemblage, and on subjectivities and communities involved in big
    data.

    Keywords: data assemblage; big data; qualitative methods; data centres; da-
    ta interoperability.

    Submitted: July 18, 2018 – Accepted: May 20, 2019

    Corresponding author: Cristiano Felaco, Department of Social Sciences,
    University of Naples “Federico II”, Vico Monte di Pietà, 1 80138 Napoli
    (Italy). Email: cristiano.felaco@unina.it




 1. Introduction

     The article critically examines the data assemblages of three centres of
 calculation which produce and use big data for social research. The aim is
 to unfold how big data are produced by comparing and contrasting dif-
 ferent aspects of data construction, management and exploitation. Fur-
 thermore, it addresses some criticalities in big data research in relation to
 contexts (public/private; national/international, etc.) and objectives (offi-
 cial statistics, policy design, academic research etc.).
     Data are commonly considered neutral and objective material that
 condenses pieces of social reality in numbers and other symbolic forms,

TECNOSCIENZA
Italian Journal of Science and Technology Studies
10 (1) pp. 51-70 – ISSN 2038–3460
www.tecnoscienza.net                                2019
52                                                          Tecnoscienza – 10 (1)

but actually Manovich explains that: “data [do] not just exist, they have
to be generated” (Manovich 2001, 224). In the philosophy of science, it is
at least from the rise of post-positivist thinking that data have been criti-
cally considered a selection from the total sum of all possible data availa-
ble (Kuhn 1962; Feyerabend 1969). Data are framed by methods and
techniques, theories and background knowledges (Lakatos 1976), prac-
tices and contexts. Their production is situated and historically specific, a
result of the conditions of inquiry, which are at once material, social and
ethical. This idea that, to use the words of Gitelman (2013), “raw data is
an oxymoron” (see also Leonelli 2016 for data in biology) raises questions
about how data are assembled, and it calls for a critical investigation of
the intertwined processes of collection, management and use that prepare
data for becoming information, and then knowledge (Floridi 2010).
    A long tradition of research has been devoted to study the processes
where classifications, indicators and measures, and the data originate, are
constructed through a series of activities where many actors with different
cognitive frames interact (Thévenot 1984; Alonso and Starr 1987;
Desrosières and Thévenot 1988; Salais and Storper 1993; Desrosières
2010). With the developments of data infrastructures, open data and big
data, data intensive and positivistic approaches to scientific knowledge
have disputed post-positivism (Kitchin 2014a). Discourses and practices
surrounding the big data revolution (Mayer-Schonberger and Cukier
2012) moved towards an emerging variety of computational social science
techniques (Lazer et al. 2009), which provide granular analyses that are
said to no longer require theories (Anderson 2008) and critics (Iliadis and
Russo 2016). The need to unpack big data assemblages has been then ad-
vocated by Dalton and Thatcher (2014), who have called for ‘Critical data
studies’ (CDS), studies that apply critical social theory to data to explore
the ways in which they are never neutral, objective, raw representation of
social reality, but are situated, contingent, relational and contextual.
    The objective of our research is to reconstruct contexts, activities and
the long chain of human and non-human actors which construct big data.
We interviewed experts and professionals who work within three Euro-
pean data centres by means of focus groups and in-depth interviews. We
chose these interviewees because they are directly involved in big data as-
semblages and may reveal relevant information about its socio-technical
apparatuses. The analysis focuses on three specific topics: some methodo-
logical challenges of data curation and data management that arise in a
context of multi-stakeholder informational needs and objectives; the skills
needed and the interdisciplinarity approach for dealing with big data; the
ethical implications of using digital data collected on a wide international
scale, and coming from a layered network of administrations and corpora-
tions.
    This article is structured as follows: section two presents big data as-
semblage and its various apparatuses; section three frames the research
design and explains the method adopted; section four and its sub-sections
Aragona & Felaco                                                         53
show the results of the analysis. The last section concludes with some re-
marks about the undertaken work and future perspectives.


2. Big Data Assemblages

    Critical data studies (CDS) aim at retracing the contextual and rela-
tional processes through which data are constructed. One example is re-
search on algorithms (Gillespie 2014; Kitchin 2017), which have concen-
trated on how algorithms are generated (Bucher 2012; Geiger 2014), or
how they worked within specific domains such as journalism (Anderson
2011), security (Amoore 2006, 2009), or finance (Pasquale 2015). A fur-
ther example of CDS is research on data curation practices. Diesner
(2015) affirms that small pre-analytical decisions concerning data prepa-
ration for analysis (for example merging, sorting, cleaning, structuring,
data reduction, normalization, etc.) ̶ which are often not given careful at-
tention, and about which there are few “best practices” ̶ can have enor-
mous (often undesired) impact on the results of big data research. Finally,
some CDS research aims at specifying how cultural, symbolic, and nor-
mative values may play a role in promoting certain images of the social
world through data. Their objective is the analysis of the connections be-
tween the material sphere (technologies, devices, infrastructures) and the
socio-cultural one (values, symbols, expert knowledge, disciplinary “dis-
courses”, interests, and logic of action). For example, Taylor et al. (2014)
demonstrated that the access of corporate big data is proprietary, and
that may limit the replicability of studies.
    All these pieces of research have focused their analysis on the data as-
semblage that is “a complex socio-technical system composed of many
apparatuses and elements that are thoroughly entwined, whose central
concern is the production of a data” (Kitchin and Lauriault 2014, 6). The
diffusion of the term assemblage, in French agencement, is attributed to
the French philosopher Deleuze. He believed that assemblages are en-
trusted with the function of dismissing the representative thought that ar-
rogates the control of meta-discursive knowledge, of disciplinary special-
isms and related institutions. Assemblage is above all the attitude to rec-
ognize the production of data as fields of force, heterogeneity of the pro-
cesses, unforeseen connections in which they are located, and which con-
tributes to produce (Deleuze and Guattari 1980). And just as data are a
product of the assemblage, the assemblage is structured and managed to
produce those data (Ribes and Jackson 2013). Data and their assemblage
are thus mutually constituted. Importantly, they are responsive, dynamic
and lively, constantly reconfigured as new data are generated and datasets
are combined in different ways (Andrejevic 2013; Beer 2013). Moreover,
each data assemblage forms part of a wider datascape (Berry 2011), which
encloses the whole spectrum of existing data sources (official statistics,
big data on the internet, administrative open data, etc.) and data infra-
54                                                          Tecnoscienza – 10 (1)

structures (data holding, data archives, repositories, etc.) on a specific
subject (Aragona and De Rosa 2018). The datascape is therefore com-
posed of many others inter-related and interacting data assemblages and
systems.
    The fact that any big data assemblage is inextricably linked with other
data assemblages makes it hard to empirically isolate it. We have there-
fore decided to run our research in three European centres of calculation,
which produce, use and share digital data. According to Latour (1987),
centres of calculation are venues where knowledge production builds up-
on the mobilization of human (directors, researchers, collaborators, etc.)
as well as non-human (documents, books, data, instruments, machines,
methods, etc.) resources. He stated that the non-human resources mobi-
lized within centres of calculation by the scientists fulfil three conditions:
firstly, they have to be mobile, so they can be transported to a ‘centre of
calculation’; secondly, they have to be stable to be processed; and thirdly,
they have to be combinable in order to be aggregated, transformed and
connected to other resources in the process of knowledge production.
These properties configure non-human resources as immutable mobiles
(ivi, 223). Neresini (2015) affirms that digital data have all these three
characteristics. They can be shared easily through data infrastructures
and digital devices, condensed in numbers and other signs that “are able
to communicate meanings that are not direct manifestations of hic et
nunc subjectivity” (Berger and Luckmann 1966, 58), and finally aggregat-
ed, shuffled combined, merged and linked within databases. Data are
seen as boundary objects (Star 1989), objects that have different meanings
in different social groups, but their structure is sufficiently common to
make them acknowledged means of translation. Different from symbols –
for every symbol we have a set of stereotypical meaning – the meaning of
boundary objects does not come from familiar uses, but is brought to it
by the actors who are using and interpreting it in their interaction. Never-
theless, data do not only participate to the formation of knowledge in a
symbolic way, but also in a denotative way, giving an active contribution
to its construction. As Gitelman and Jackson (2013) argue, data are both
framed – actively produced in specific contexts – and framing – them-
selves producing objects and subjects of knowledge. For example, classi-
fications in social sciences, when acted within institutions, change the
ways individuals understand themselves (Hacking 1999). A clear illustra-
tion of that is gender statistics, that is the segmentation of any statistical
indicator in two categories, men and women. Some kinds of gender ine-
qualities, such as gender pay gap and work-family balance, were not so
pressing in society as far as they were measured. Gender statistics helped
to claim equality of income between women and men, and a better work-
family balance. At the same time, LGBT movements, which defend mul-
tiple different gender identities, consider as a discrimination the segmen-
tation of statistics in simply men and women. The problem is that once
stabilized, data become autonomous, independent from their construc-
Aragona & Felaco                                                                     55
tion procedures and without memory on their origins (Neresini 2015).
Data have their own agency, not only because, as symbols, they are cul-
tural products but overall because their meaning, and what they repre-
sent, is the result of choices made by a long chain of actors.
    Big data assemblages are the joint product of different apparatuses
and many competing communities of actors. The apparatuses interact
with and shape each other through a contingent and complex web of
multifaceted relations (fig.1), with the result of being ‘black boxed’.




        Figure 1 – Apparatuses of the data assemblage. Source: Kitchin (2014b, 26)

    In cybernetics, a part of a machine is said black boxed when only the
inputs and outputs are known, but not what is in-between. Pasquale
(2015) notes that the black box question has been a problem for data
even before the advent of big data, because data, whatever its size, are
part of different layered activities. It is therefore crucial to follow these
elaboration and exchange processes and to retrace the chain of human
and non-human actors that compose the big data assemblage. This con-
sists of more than the centre of calculation itself, to include all the techno-
logical, political, social and economic apparatuses that frame data. When-
ever black boxes are opened, the elaboration processes are revealed,
working groups, decisions, competitions and controversies come up
(Latour 1987).
56                                                          Tecnoscienza – 10 (1)

    Our analysis concentrates on the methodological activities run in the
assemblage and on subjectivities and communities. Methodological activi-
ties concern techniques, ways of doing, learned behaviours and scientific
conventions. They are all the procedural aspects of data, which have
changed dramatically in big data assemblages and that mainly refer to the
following aspects:

     -   Data collection: data selection, archive integration techniques,
         metadata, etc.;
     -   Data management and organization: responsibilities for data
         management, intellectual property, consent and ethics, etc.;
     -   Data analysis: pre-analytics, data mining, text mining, etc.;

    Subjectivities and communities refer instead to the different agencies
involved in big data assemblage (producers, social scientists, users, etc.)
and recall its social aspects. In big data assemblages a dialogue between
different kinds of expertise is needed (i.e. statisticians, IT experts, domain
experts etc.). Along with this, the socio-technical aspects of data assem-
blage refer also to the different stakeholders the data are directed to (pol-
icy makers, researchers, communication experts, data journalist, citizens).
Our analysis focuses on composition of teams (professional profiles,
skills, etc.), and the links between the internal actors of the assemblage
and other external actors (brokers, corporations, public agencies, etc.).
Because it is not possible to separate the apparatuses of the assemblage,
by studying methodological activities and subjectivities and communities
we have inevitably addressed some questions that are connected with the
other apparatuses.


3. Method

    Qualitative methods seem suited to deconstruct the contingent and re-
lational nature of big data. We conducted our research on data centres
because they are venues where all the apparatuses of data assemblage take
form (Aragona et al. 2018). We selected three centres in Europe: Web
Science Institute (WSI), Italian National Institute of Statistics (ISTAT)
and Norwegian Centre for Research Data (NSD). We chose these three
data centres because they are all involved in big data assemblage. They
have specific priorities and aims, and different organizational structures;
these centres rest also in three different territorial contexts. ISTAT serves
the Italian community to produce and communicate official statistics. It is
composed of various departments, sections and units that depend from a
central executive body. NSD is the Norwegian national archive, and its
mission is to help in finding data, and to ensure and control their quality.
It has an organizational structure less hierarchical than ISTAT, which is
Aragona & Felaco                                                           57
divided only into three sections (information technology, data services,
data protection). Finally, WSI is a research institute within the University
of Southampton that has a flat organizational structure without levels of
middle management. It aims to undertake interdisciplinary research and
to provide insight and intelligence that can lead policy, business strategy,
civic engagement and individual choices to meet the social and technical
challenges posed by web technologies. These three centres have some
common traits that entitled us to compare their activities. At the same
time, they have also different characteristics, which allowed us to explore
a much wider spectrum of existing sources and of scheme of actors, roles
and systems of influence (Aragona and De Rosa 2018; Aragona et al.
2018).
    The analysis of data assemblages is usually realized through ethnogra-
phies (Geiger 2017; Seaver 2017), we preferred to adopt only qualitative
interviewing (in-depth interview and focus group)1. The reason for this
choice is that we gave priority to the meanings and the relevance that ac-
tors participating in the assemblage attribute to the activities they run, ac-
cording to their role, background knowledge and the context. We run in-
depth interviews with directors (2) and heads of sections (7) to encourage
a critical reflection on the apparatuses, and a reconstruction of the whole
data assemblage. In addition to interviews, we conducted three focus
groups – one for each centre – with data team members without manage-
rial functions. Focus groups participants had different educational and
professional backgrounds (computer scientists, social and political scien-
tists, statisticians and legal experts on data protection). Focus groups
helped us to collect a wider range of opinions, and to explore different
procedures. Moreover, they allow us to grasp the relational dynamics be-
tween different communities of experts, and their level of engagements in
the layered stages of the assemblage.


4. Results

    The results of the analysis may be organized in five sections that cover
the main problems and challenges that emerged from both the interviews
and the focus groups. The first three concerns the methodological aspects
(access, selection and interoperability), while the last two focus on the
skills needed in the assemblages, and the ethical implications of big data
research.

4.1 Access

   In recent years, open data initiatives and the building of new data ar-
chives and data infrastructures have encouraged the sharing and use of
58                                                              Tecnoscienza – 10 (1)

public data for research. Nevertheless, the problem of data access is still
urgent, especially for data produced by private companies:

     When you think of Twitter...the process is massively irritating…it is
     actually almost impossible to get some kind of data that you want without
     a special relationship with Twitter. (L., WSI)

    According to boyd and Crawford, access may be actually granted to
somebody according to their influence, budget and goals: “This produces
considerable unevenness in the system: those with money – or those in-
side the company – can produce a different type of research than those
outside” (2012, 674):

     Compared to other social networks, we did not used Facebook due the
     difficulty to access in terms of economic resources; we have used Twitter
     because it is free. (B., ISTAT)

     Mobile-phones operators, app developers, social media providers, re-
tail chain, and surveillance and security companies are under no obliga-
tion to share data. Access is therefore usually individually negotiated, and
it involves layered networks of agencies and the signs of a series of agree-
ments concerning intellectual property, non-disclosure and re-sharing:

     You can image the effort to get call detailed records; agreements between
     institutions and authorities, and all kinds of guarantees […]. I spent two
     years trying to obtain contacts, appointments and agreements. (B., ISTAT)

    The question of the access of private data is not a trivial one, because
it completely changes the way of thinking about data and their value.
When talking about the call detailed records of telephone companies, an
interviewee of ISTAT highlights this problem:

     We have never paid for data and we do not want to create a precedent
     because in my opinion these data are public good; they are not a private
     property, we all have generated the millions of data by telephoning and
     they are stored by companies. (A., ISTAT)

    This is a clear example of how values come into the activities of the
assemblage. In a public data centre, such as ISTAT, data are considered
as a public good. The value of public goods is inverse to their scarcity;
more the good is diffused, more its value is. On the contrary, in the pri-
vate market it is scarcity that gives value to goods; rarer is the good, more
its value is. For example, a WSI interviewee explains that the access to
social data is often constrained and requires agreements with data bro-
kers, specific companies (data aggregators, consolidators and resellers)
that allow to buy a large amount of data and layers of services:
Aragona & Felaco                                                                     59
    We have got a range of channels for getting social data…One of this to get
    through is paying intermediate company that gathers social data and
    provide some added value analysis. (S., WSI)

    These findings support the idea that data, are not neutral, impartial
expressions of knowledge, but they construct and implement regimes of
knowledge (Campbell and Pedersen 2011). Furthermore, they show that
the number of intermediaries between the producers and the users of da-
ta is growing in big data assemblages. The relations of the centres with
data brokers and governmental authorities are just some examples of the
multiple possible configurations that the wider networks between the dif-
ferent public and private agencies that participate in the big data assem-
blage may take.

4.2 Selection

    The selection of data emerges in different means. Firstly, interviewees
discuss the criteria that orient the choice of big data. Actually, despite the
often made claim that big data provides total populations ending our reli-
ance on samples, this is rarely the case for social media data (Highfield et
al. 2013). When using data coming from the web, part of the population
may not be accessible, because not accessing the internet, or because in-
dividuals are passive consumers of internet information, rather than ac-
tive participants on the web. Respondents wonder about the quality of
these data in respect to the selection of a sample from the right popula-
tion and its representativeness:

    Our purpose is to estimate matrix of flow inter-municipal within both
    region and province (…) This data source entails methodological
    problems due to single market share of Telecom2, then the fact that the
    same subject can possess more Sim cards and it is not sure that the
    account holder coincides with who effectively use the Sim card. (C.,
    ISTAT)

    Selection errors may become more acute in the case of social media
data, because it is more difficult to identify the people and their charac-
teristics:

    The problem would be the quality because social media data are a kind of
    new data on who are the people. Are the people on Facebook really
    people? And who are those? The gender, the attitude, the quality of the
    data comes across that. And that would be one of the main problems. (E.,
    NSD)

    These data as an output of activity in social media are self-selected; you are
    only analysing people who use Facebook. Twitter is the same and people
    who use Twitter, although they have a very variable profile and features
60                                                               Tecnoscienza – 10 (1)

     and personalities, there is a common threat and it is that they are Twitter
     users, and for being a Twitter user you need to have certain treats. That
     happens with me when I analyse Mooc data as well, to start with I am only
     analysing learners who are using Moocs. (I., WSI)

    Other selection problems are generated by the “velocity and ever-
changing nature of big data” that requires a modernization of the organi-
zation and of the technologies:

     The structure of the website is always being changed over time and we
     have to keep up with the technological changes. (…) The velocity and
     ever-changing nature of big data generates acquisition problems, and it
     needs the development of new data capturing practices (…) Regards to
     web scraping (…) it implies a new form of organization than we did until
     now. It needs to figure out how select the data. (B., ISTAT)

    Some critics consider that because the web is changing fast it could
make no sense to snapshot phenomena when they can variate very quickly
(Lieberman 2008). It is almost impossible to draw any kind of generaliza-
tion. Selection criticalities are not only technical, but they also require a
“new form of organization” able to work with the ever changing form of
big data which – as will clearly emerge in section 4.4 on skills – necessi-
tate an overall restructuring of the routinized working activities inside the
data centres.

4.3 Interoperability

     One of the claims about big data revolution is the possibility to create
datasets with strong relationality, which can be combined to generate ad-
ditional insight and value (Mayer-Schonberger and Cukier 2012). The
question of interoperability is not new, and it has been pursued for long
time by data infrastructures such as archives, informative systems and re-
positories. For data to be integrated into new datasets they require shared
indexical fields and data standards, consistent metadata systems and
compatible format. A broader set of managing and handling problems
arises not only with big digital traces on the internet, but also with big da-
ta operating in context alongside traditional forms of data, the scaled-up
data, what we call “the data that are getting bigger” (Aragona 2016). Data
that are getting bigger are research and administrative data that have been
integrated, merged, linked and restructured within data infrastructures
(i.e. datawarehouses, dashboards, archives, etc.). These have been also
named ‘small big data’ (Gray et al. 2015). It is not always easy to scale-up
databases coming from different institutions, because they may be struc-
tured on dissimilar standards:

     Well, the data sources that I use have been 2000-3000 institutional
     repositories around the globe...they attain to specific shared information
Aragona & Felaco                                                                    61
    and so from universities all round the world...The problem with that is
    that it becomes very costly to keep helpful at having an infrastructure
    which is made by 3000 repositories and their different uses of the different
    standards…there are, say, 3 or 4 major platforms...but each of those...have
    10 different versions around...and they use different metadata
    standards…And then you have got the different archival and librarian
    practices in every institution and they will use the software differently and
    use the metadata alternatively. (L., WSI)

    This simultaneous use of various standards calls for metadata harmo-
nization. Metadata standards do not always meet the needs of interopera-
bility between independent standardization communities. The combina-
tions of different specifications seem a core issue for web-based metadata.
An interviewee faces the coexistence between multitude of metadata
standards with different characteristics:

    We have been using various metadata…Ddi, for instance….Sdmx (…) But
    what we are working now with is much more on how we can integrate the
    metadata (A., NSD)

    Metadata perform a double function. They help data to become mo-
bile immutables (Latour 1987). The anchoring of data to specific classifi-
cations, methods of data collections and procedures keeps them stable, as
well as increases their mobility, because it eases the combination with
other data. At the same time, metadata facilitate the development of
standardized procedures for the management of data flows, which may be
implemented in different data assemblages. For example, The Generic
Statistical Business Process Model (GSBPM) introduces a new method-
ology to connect traditional research (survey and administrative data)
with big data within National Statistical Institutes, integrating data and
metadata standards and harmonizing statistical computing processes3:

    GSBPM has spread starting from Unece that it introduced this
    methodology to standardize the process within National Statistical
    Institutes. We are trying to introduce and connect the production with big
    data in this scheme (GSBPM) to represent and standardize each
    modification on traditional flow of the model for the purpose of
    replicability and transparency. (B., ISTAT)

    Metadata specifications and standard processes therefore add further
value that may enhance the combination, exchange and reuse of (big) da-
ta coming from different sources. Examples are the data stored by social
science data archives such as Cessda, the Central European Social Science
Data Archive, or the Information Systems that have been built by Euro-
stat and National Statistical Institutes. One problem is to handle these da-
ta to prospective users.
62                                                                         Tecnoscienza – 10 (1)

     And then we have the problem of storing and organising what we have
     produced and get access to. We have all kinds of metadata problems, how
     you describe a document, a data, a service so that is easy to find? And then
     we have the (…) discovery and dissemination systems: how do you push
     out the data again to the prospective users? And how do we make them
     able to analyse the data? What kind of statistical packages are they using?
     Are they using Salstat, Spss or whatever could be…How do you create
     flexibility? There is a big difference in data format if you want to use Spss
     versus R or Stda to do the analytic work. (A., NSD)




     Figure 2 – The use of Big Data in Italian Official statistic according to Generic Statistic
                   Business Process Model. Source: De Francisci (2017)



    The adoption of common standards may offer more complete docu-
mentation, more widespread know-how and better access to reusable
tools. Unlike traditional data assemblages that stopped when data were
released, current big data assemblages must follow up on the way data are
handled to final users through platforms, infrastructures and the media.
Interviewees wonder if users are able to transform these data into
knowledge, and how this process works (Giovannini 2014).


4.4 Skills and communities

    The lack of the proper skills for handling big data in statistical offices
is a challenge that needs to be addressed (Baldacci 2016). Indeed, statisti-
cians, experts of fields, computer scientists, and all the other communities
of experts who for long have been dealing with data are significantly af-
fected by the assemblage of big data:
Aragona & Felaco                                                                     63

    We have been tackling new problems: for now, problems of
    production…we had response problems…so different troubles than we
    were used to face, however I would say that we are equipping ourselves
    with a new instrument and acquiring a culture which is in line with that is
    happening in the world, such as data science, technics of machine
    learning, production of models…we are approaching these tools and using
    them jointly the methodological tools that we already have. (B., ISTAT)

    The skills needed are not simply technical, but also deeply epistemo-
logical, which consist of the ability of mixing social theory and computa-
tion, data and modelling in an innovative way. In this respect, the same
interviewee continues reporting the lack of big data experts with these
skills on the labour market, and he affirms that the higher education is
not sufficiently focused on targeting big data:

    I think that university should provide more competences to the students to
    work with these kinds of data (…) only in the last years they have started
    to set up master focused on data. But in the next few years, we expect a
    major demand on the labour market (…) machine learning, the skills
    about the statistic but also the new skills relating to data science. (B.,
    ISTAT)

   Apart from the new skills, in big data assemblages a dialogue between
the different communities of experts is required to blend methodologies
and disciplinary matrixes, and shape what Lakatos (1976) called back-
ground knowledge (the whole set of facts and parameters used in the
construction of any given theory, and of any given data):

    I have been lucky enough to come across and work with people in all their
    disciplines that have not been to heavily shade by their own discipline
    which means they are still “malleable” and this means the way you
    approach a problem, and the universe from which you depart it is
    negotiable and is negotiated. We have been able to easily accept that there
    are other ways to see the world and other ways to get to a conclusion or
    other ways even to name it. (L., WSI)

    One interviewee traces a distinction between interdisciplinarity and
multidisciplinarity. The former is supposed to be a new thing that comes
out from the blending of concepts and backgrounds from different disci-
plines. It is related to the overcome of some political struggles between
scientific communities. The latter is just limited to the sum of the differ-
ent concepts and methods borrowed from the various branches of re-
search and knowledge:

    Multidisciplinarity is very rich and very useful, but interdisciplinary is far
    beyond it, because it demands that if you have some stand points and
    others contribute, if there is synergy between them they can make-up with
64                                                                Tecnoscienza – 10 (1)

     an ordered new think and this is interdisciplinarity about. It is not only
     collaboration between two disciplines, it is to come up with something
     new that all of them can agree and can transport on their research field.
     (…) For me, multidisciplinarity, I agree, we can talk with people from
     different discipline sets, we share knowledge, and it’s very useful, but
     interdisciplinarity is more than this, that’s my point. (P., WSI)

    Therefore, an interdisciplinary context fosters the discussion between
experts and greater openness in approaching a problem. As Berger and
Luckmann noted when talking about the maintenance of symbolic uni-
verses, a pluralist situation mines the capacity of the definition of reality
based on traditional symbolic universes and of resisting to changes. Plu-
ralism: “encourages skepticism and innovation, it is intrinsically subver-
sive of status quo taken for granted reality” (1966, 174). According to the
interviewees, a pluralism of disciplines seems to be a key aspect of transi-
tion from data to big data assemblages.

4.5 Ethics

    According to the EU Parliament4, European citizens should become
aware not only of their digital rights, but also about algorithmic govern-
ance, automated data processing, and means of collecting data (web
scraping, social networks, etc.). Yet the differences in the legal frame-
works, and high bureaucratization have been obstacles for research col-
laboration and data sharing across national borders. For this reason, Eu-
ropean Union adopted the regulation on personal data protection, the
General Data Protection Regulation (GDPR), to safeguard the privacy of
EU citizens. GDPR regulates data breaches notification, right to access,
right to be forgotten and data portability. It pursues the creation a com-
mon legal framework that can push cross-national research through trust
common legislation and harmonized practices. This new legislation
should guarantee the rights and privacy of the citizens, fostering a greater
control on their own data:

     The main reasons on the process of making the GDPR started are all these
     new fonts of data and all the data a lot of people do not know their rights,
     they do not have control over their data (…) And move from regulations
     that shows it will be implemented more or less in the same way in all the
     European countries. (S., NSD)

   Big data seem to challenge the entire ethical system that has been cre-
ated and institutionalized on different kinds of data:

     I think that the kind of data that existed has shaped out the structure of
     the ethical regulation system (…) But I think that the new form of data
     that we have challenges the ethical system that we have as a bureaucratised
     system. (S., WSI)
Aragona & Felaco                                                                 65


    Nevertheless, an interviewee explains that GDPR does not fully over-
come the problems of big data research, rather it has a limited flexibility
in its application. Specifically, the access to data is still costly and time
consuming; each authority requires information about the project with
descriptions and justifications for the processing of personal data:

    That is one of the many issues for big data researchers in any industry or
    GDPR is the data limitation. One of the main aims of a data researcher is
    that it should collect all the data that you can gather and see if you can
    find a pattern. So, I think that the GDPR and big data researchers are
    difficult to combine. (M., NSD)

   The ethical concerns are more urgent with social media data. As the
case of Cambridge Analytica has shown, mapping personality traits based
on what people had liked on Facebook, and then use that information for
profiling and influencing citizens may rise important ethical implications
because, as an interviewee notes, it is somewhat obscure who these data
can be handled to:

    I think, we are quite good with research ethics… but, I think, as we
    generate more and more data with social media, in particular, when you
    look at the terms and conditions of things like Instagram or Facebook, we
    are really lowering the expectation bar of how people treat data and use
    data. Who you can give it to? What you can use it for? (L., WSI)

    These findings show that new ethical regulations may reinforce hyper-
networked ethics. Floridi (2013) refers to this as “infra-ethics”, where at
least three main stakeholders are affected: data generators, data collectors
and data users. Alike our interviewees, the agents in this network may
have different opinions about data ethics. Since they interact with other
actors within the data assemblage, they may cause collateral consequences
on all the others by facilitating or hindering ethic actions.


5. Conclusions

    The research shows that data happen through structured social prac-
tices “in and through which various agents and their interests generate
forms of expertise, interpretation, concepts, and methods” (Ruppert et al.
2017, 3). By inspecting the work of data centres of calculation, we were
able to identify some stabilized activities (for example the establishment
of agreements at different degrees of formality with data providers and
data brokers) and to assess their consequences on data quality (for exam-
ple on representativeness). In addition, we addressed the effects of some
criticalities on the whole big data assemblage. One example is the lack of
66                                                          Tecnoscienza – 10 (1)

interoperability, which can affect the timeliness and accessibility of big
data. Furthermore, we retraced the different communities of experts that
participate to the processes of the assemblage. Big data assemblages are
imbued with multidisciplinarity. On one side, this is needed because big
data requires multiple computational, statistics and domain expertise. On
the other side, pluralism of disciplines is seen as a way to improve adapt-
ability and enhance innovation. Finally, the specific layered activities of
big data assemblage are throughout concerned with ethics, but they all
pose various ethical problems to be overcome, and a size fits all solution
does not emerge from the interviews.
     The analysis brings some valuable insights about the problematic is-
sues related to big data assemblages. A central question is how we could
arrive at better conventions that can help an effective use of big data. Ac-
cess constraints, acquisition problems, selection biases and pre-analytical
work may be problematic unless a series of routinized activities takes
place. Conventions are necessary to fix standards that insure the quality
of data, and in our opinion, an institutional setup – as the one is moving
its first step forward inside ISTAT and the others European statistical in-
stitutes – is a very reasonable thing to wish for. This institutional setup
has served so well in the case of survey data, for example through the
standard definition of the total survey error, the adoption of classification
standards and the exchange of metadata. The establishment of routinized
activities is strictly connected with the experts needed inside big data as-
semblage. The lack of skills lamented by the more established data cen-
tres may hinder the development of big data assemblages and their effec-
tive functioning. Moreover, the ever-changing nature of big data infra-
structures, platforms and interfaces involves not only acquiring new skills
from outside the centres, but also constantly, and probably costly, updat-
ing the expertise and capacities required to run the activities of big data
assemblages.
     The methodological posture adopted in this paper allowed us to pick
up choices, compromises and agreements and to unveil black boxed as-
pects of big data assemblage. The comparative focus on the three centres
of calculation entailed us to disentangle the different resources (human
and non-human) mobilized within the assemblages and to explore “from
below” – through the words of the main actors participating in the as-
semblage – the contingent and contextual making of big data. This piece
of research stresses that the definition of data and big data should be al-
ways seen as a product of a convention and subjected to debate. By isolat-
ing and inspecting some methodological aspects of the big data assem-
blage (i.e. access, selection and interoperability) it is possible to increase
the awareness that data are not given, but actively constructed through
socio-technical practices.
     Our study should be seen as an attempt to grasp the complex appa-
ratuses that form big data assemblages, because it concentrates only on
the socio-technical practices of big data production and management,
Aragona & Felaco                                                              67
and it is confined to the study of big data in social research. Further work
should isolate some applications of big data (i.e. government or business)
in order to observe how they are brought to use within different commu-
nities of stakeholders and users, and to reconstruct the practices within
the other apparatuses of the assemblage.


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    1
      The interviews in ISTAT were conducted in Italian language and then translated,
while those conducted in WSI and NSD were transcribed verbatim.
    2
      Telecom is an Italian telecommunication company that offers fixed and mobile
communication services.
    3
      For details, see https://statswiki.unece.org/display/GSBPM/I._Introduction #I._-
Introduction-_Toc375051192.
    4
       For details, see http://www.europarl.europa.eu/sides/getDoc.do?pubRef=-
//EP//TEXT+TA+P8-TA-2017-0076+0+DOC+XML+V0//EN.
