Archive for the ‘ Events ’ Category

Sharing Networks study 2017: Moving online!

I’m so excited that earlier this month, I ran the second wave of data collection for my Sharing Networks research project at OuiShare Fest 2017!

The Sharing Networks 2017 survey team (incomplete).

The study aims to map the collaborative economy community that gathers at OuiShare Fest, looking at how people network and how this fosters the emergence of new trends and topics.

During the event, a small team of committed and effective co-researchers helped me interview participants. We used a questionnaire with a “name generator” format, typically used in social network analysis to elicit people’s connections and reconstitute their social environment.

Specifically, we asked respondents to name people they knew before the

Results of our Sharing Networks 2016 survey have now become a T-shirt.

OuiShare Fest, and met again there (“old friends”), and people they met during the Fest for the first time (“new contacts”). Then we asked them to choose, from among the “old” and “new” they had named, those they would like to contact again with soon, for example for joint projects or collaborations.

I am very happy with the result: 160 completed interviews over three half-days! But it is still not enough: participants to the Fest were much more numerous than that, and in social network analysis, it is well-known that sampling is insufficient, and one needs to get as close to exhaustiveness as possible.

Therefore, for those OuiShare Fest 2017 participants that we did not manage to interview, there is now an opportunity to complete the questionnaire online.

If you were at the Fest and we did not talk to you, please do participate now! It takes less than 8 minutes, and you will help the research team as well as the organization of the Fest.

Many thanks to the team of co-researchers who helped me, the OuiShare team members who supported us, and all respondents.

More information about the Sharing Networks study is available here.

Highlights from results of last years’ Sharing Networks survey are available here.

Networks in the collaborative economy: social ties at the OuiShare Fest 2016

The OuiShare Fest brings together representatives of the international collaborative economy community. One of its goals is to expose participants to inspiring new ideas, while also offering them an opportunity for networking and building collaborative ties.

At the 2016 OuiShare Fest, we ran a study of people’s networking. Attendees, speakers and team members were asked to complete a brief questionnaire, on paper or online.Through this questionnaire, we gained information on the relationships of 445 persons – about one-third of participants.

Ties that separate: the inheritance of past relationships

For many participants, the Fest was an opportunity to catch up with others they knew before. Of these relations, half are 12 months old at most. About 40% of them were formed at work; 15% at previous OuiShare Fests or other collaborative economy experiences; 9% can be ascribed to living in the same town or neighborhood; and 7% date back to school time.

Figure 1: pre-existing ties

Figure 1 is a synthesis of these “catching-up-with-old-friends” relationships, in the shape of a network where small black dots represent people and blue lines represent social ties between them. At the center of the graph are “isolates”, participants who had no pre-existing relationship among OuiShare Fest attendees. The remaining 60% have prior connections, but form part of separate clusters. Some of them (27%) form a rather large component, visible at the top of the figure, where each member is directly or indirectly connected to anyone else in that component. There are also two medium-sized clusters of connected people at the bottom. The rest consists of many tiny sub-groups, mostly of 2-3 individuals each.

Ties that bind: new acquaintances made at the event

Participants told us that they also met new persons at the Fest. Figure 2 enriches Figure 1 by adding – in red – the new connections that people made during the event. The ties formed during the Fest connect the clusters that were separate before: now, 86% of participants are in the largest network component, meaning that any one of them can reach, directly or indirectly, 86% of the others.

Figure 2: new ties created at the event

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Data, health online communities and the collaborative economy: my tour of Québec

This November gave me the opportunity to give talks and participate in scientific events throughout Québec.

comsanteI started in Montréal, with a seminar at ComSanté, the health communication research centre of Université du Québec à Montréal (UQAM), where I presented my recently published book on websites on eating disorders. While most media attention focused on controversial “pro-anorexia” contents, presented as an undesirable effect of online free speech, I made the point that this part of the webosphere is rather to be seen as a symptom of the effects of current transformations of healthcare systems under austerity policies. Cuts in public health spending encourage patients to be active, informed and equipped, but the resulting social pressure creates paradoxical behaviors and risk-taking.

Also in Montréal, I was invited to a discussion with economic journalist Diane Bérard on the growth and crisis of theecocoll collaborative economy. About 50 people attended the event, co-organised by co-working space L’Esplanade, OuiShare Montréal and the journal Les Affaires. Diane summarized the essentials of the event in a blog post just the day after, and noted six main points:

  • The Uber case dominates discussions and divides the audience – though the collaborative economy is not (just) Uber.
  • The discussion gets easily polarized – a result of the tension between commercial and non-commercial goals of the collaborative economy.
  • We still know little of the business models of these platforms and the external factors that facilitate or hinder their success.
  • Sharing is in fact a niche market – now probably declining after the first enthusiasms.
  • The key issue for the future is work – its transformations, and how it is re-organizing itself.
  • Collaborative principles advance even outside the world of digital platforms, and sometimes permeate more traditional sectors. The near future of collaboration are sharing cities.

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Twitter networks at the OuiShare Fest Barcelona 2016

Twitter conversations are one way through which participants in an event engage with the programme, comment and discuss about the talks they attend, prolong questions-and-answers sessions. Twitter feeds have become part of the official communication strategy of major events and serve documentation and information purposes, both for attendees and for outsiders. While tweeting is becoming more an more a prerogative of “official” accounts in charge of event communication, it is also a potential tool in the hands of each participant, allowing anyone to join the conversation at least in principe. Earlier, I have discussed how the Twitter discussion networks formed at the OuiShare Fest 2016, a major gathering of the collaborative economy community that took place last May in Paris, were one opportunity to see such mechanisms in place.

Here is a similar analysis, performed after the OuiShareFest Barcelona – the Spanish-language version of the event that I had the chance of attending last week. The size of this event is smaller than its Paris counterpart but nonetheless impressive: I mined 3497 tweets with the official hashtag of the event, #OSfestBCN, mostly written during the two days of the event (my count stopped the day after). Do Twitter #OSfestBCN conversations describe the community?

First, when did people tweet? As often happens, there are more tweets on the first than the second day of the event, and there are more tweets during the first hours of each day, though the difference between morning and afternoon is not dramatic; tweeting declines only at night, when the fest’s activities are suspended. Online activity is not independent of what happens on the ground – quite on the contrary, it follows the timings of physical activity.


Who tweeted most? Obviously the official @OuiShare_es account, who published 630 tweets – nine times as many as the second in the ranking. Those who follow immediately are all individuals, who have between 50-70 tweets each.

Who tweeted with whom? What interests me most are conversations – who interacts with whom. The most explicit way of seeing this with Twitter data is to look at replies: who replied to whom. This corresponds to a small social network of 134 tweeters (the coloured points in the next Figure). Ties among them are represented as lines in the figure, and the size of points depends on the number of their incoming ties, that is, the number of replies received. Beyond the official @OuiShare_es account, several tweeters receive a lot of replies:  they are mostly speakers, track leaders, or otherwise important actors in the community.


Now, who tweeted about whom? This is also an important aspect of Twitter conversations. We can capture it with the social network of mentions, associating each tweeter with those they mentioned, and counting the number of times they did so. This will be a larger network (with 2553 mentions) compared to the net of replies, as mentions can be of many types and also include retweets.

The below figure represents the network of mentions. As before, the colored points are tweeters (the larger they, the more often they have been mentioned by others), while lines between them are mentions (the thicker they are, the higher the number of times a user has mentioned another). Colors represent a measure called “modularity”, which identifies clusters of nodes whereby internal connections are stronger than the connections they have with nodes in other clusters; so for example, a purple node is more likely to have mentioned other purple nodes, than blue nodes.

Modularity is computed based only on counts of ties, without considering the nature of their conversations (what the mention is about) ou other qualities of nodes (gender, nationality, language of tweeters, etc.). And yet, it clearly identifies specific sub-communities. The very numerous, central purple nodes are the OuiShare community: connectors, activists, and others close to the organization especially within Spain. The green nodes at the bottom-left are the catalan community, including representatives of local authorities,notably the Barcelona municipality. The blue nodes at the bottom are different actors and groups from other parts of Spain. The few black nodes on the left are the international OuiShare community, and the sparse orange ones at the top are other international actors.


This analysis is part of a larger research project, “Sharing Networks“, led by Antonio A. Casilli and myself, and dedicated to the study of the emergence of communities of values and interest at the OuiShare Fest 2016. Twitter networks will be combined with other data on networking – including informal networking which we are capturing through a (perhaps old-fashioned, but still useful!) survey.

The analyses and visualizations above were done with the package TwitteR in R as well as Gephi.

The international conference of French-speaking sociologists

Crédit: @clemenceRmp sur Twitter (#AISLF2016)

Credit: @clemenceRmp on Twitter (#AISLF2016)

Just attended the 20th conference of AISLF, the international association of French-speaking sociologists, in Montréal. Back home yesterday I found a state of fear and madness (again, alas…). But before that, I enjoyed a nice time with fellow researchers from France and (perhaps even more intriguingly, or simply more newly) from the different countries in which French is spoken, ranging from Canada, Belgium and Switzerland to several African countries. It was a good opportunity to get a sense of what research is done around us.


Credit: @ArthurRenault on Twitter (#AISLF2016)

Lots of good presentations. Interestingly, digital sociology appears to be on the up, as many researchers investigated topics that had to do with digital technologies, their usages, and the ensuing economic and social transformations. That there was no dedicated stream is not in itself a problem: if digital technologies permeate all our lives, they should not be studied in a separate subfield but as part of the sociology of work, of gender, of education etc.

(On this particular point, I am proud to say I was interviewed, with Antonio Casilli, by ICI – Radio Canada, and our contribution was featured by the French Consulate in Québec, a supporter of the event).

Credit: @ptubaro on Twitter (#AISLF2016)

Credit: @ptubaro on Twitter (#AISLF2016)

The other good thing is the emergence of social networks research in two keynote presentations – by Antonio A. Casilli and Michel Grossetti – which is far from a small achievement, considering that the association does not have a dedicated social networks research group (I would love to see one being created sooner or later… like BSA-SNAG, the group I convene for British Sociological Association).

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SN_box2Antonio A. Casilli and I carried out a study during the OuiShare Fest 2016, a major international get-together of the collaborative economy community that took place in Paris on 18-21 May 2016.

Our goal is to look at how people network at this important event and how their meetings, their talking to each other and their informal interactions help shape the community — so as to foster the emergence of new ideas, trends and topics.

If you were a participant, speaker, journalist organizer or teamSN_slide member/volunteer, you were asked to complete a brief questionnaire in paper format that was handed out to you upon arrival at the Fest.

If you didn’t manage to fill in the questionnaire onsite, there is still time to do so online. It takes only about 8 minutes to do so and your contribution will help scientific research as well as the organization of the Fest.

Results will be made available through the OuiShare Magazine and other online outlets.

⇒Read more here

Complete the questionnaire

Thank you for your invaluable contribution!

Second European Social Networks Conference (EUSN 2016)

I am lucky enough to be part of the organizing committee of the second European Social Networks Conference, which will take place at Sciences Po Paris on 14-17 June 2016. The EUSN conferences have been created to offer a single place for the European community of social networks researchers to gather, in place of previous national annual conferences; and has been endorsed as a regional conference by INSNA, the international association of network researchers. A first, successful EUSN conference was held in Barcelona in 2014.


Somehow, the European social networks crowd seems more diverse than the US-based core of scholars who gave life to INSNA and drove its development over time. While remaining affectionate to the INSNA format and philosophy (for example, by selecting proposals only on the basis of an abstract, to be maximally inclusive), the European conferences can afford exploring new ideas, and variants on classical schemes. In particular, this year, we are trying to enlarge patricipation and attract delegates from a wider variety of disciplines, beyond those traditionally most represented – the social sciences, mathematics, and more recently statistics. Hence for example, the keynote speakers will give a sense of continuity – we will have social anthropologists Miranda Lubbers and José Luis Molina, the organisers of the first EUSN in Barcelona, on “Ethnography and multilevel networks in the study of migration and transnationalism”. But the plenary speech is an opening to recent, relevant developments in computer science: Jean-Daniel Fekete of INRIA will talk about “Challenges in social network visualization: bigger, dynamic, multivariate”.

Submissions are now invited for paper and poster proposals (abstract only – deadline 16 February 2016). There are special thematic sessions and general sessions, and all fields are welcome. A prize will be awarded for the best poster – where all participants will be able to vote.

The day before the conference, 15 training workshops are offered into the theory, data collection, methods of analysis and visualization of social networks.

16 February: Deadline for abstract/poster proposals, and pre-registration opening
1 March: Registration opening
16 March: Notification to authors
18 April: Early registration closure
14 June: Workshops
15-17 June: Conference