Mathieu Jacomy

Mathieu Jacomy
Aalborg University · Department of Learning and Philosophy

About

51
Publications
37,349
Reads
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12,571
Citations
Citations since 2016
34 Research Items
10313 Citations
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201620172018201920202021202205001,0001,5002,000
201620172018201920202021202205001,0001,5002,000
201620172018201920202021202205001,0001,5002,000
Additional affiliations
September 2010 - present
Sciences Po Paris
Position
  • Engineer
September 2010 - January 2016
Sciences Po Paris
Position
  • Engineer

Publications

Publications (51)
Article
This paper presents and justifies Gephisto, an experimental tool visualizing networks in one click. Gephisto’s design exemplifies how we can interfere with a user’s utilitarian goals, by giving them what they wish (an easy way to get a network map) but in disobedient ways (the produced map is different every time the tool is used) that encourage th...
Article
Full-text available
I had the occasion of visualising the French political Twitter just before the presidential election of 2022, in collaboration with other researchers and the journalists of the French newspaper Le Monde. In this paper, I reflect on this case in an auto-ethnographic style to open the black box of visual network analysis and expose the entangled dial...
Article
Full-text available
According to Clifford Geertz, the purpose of anthropology is not to explain culture but to explicate it. That should cause us to rethink our relationship with machine learning. It is, we contend, perfectly possible that machine learning algorithms, which are unable to explain, and could even be unexplainable themselves, can still be of critical use...
Article
The web is a field of investigation for social sciences, and platform-based studies have long proven their relevance. However the generic web is rarely studied in itself though it contains crucial aspects of the embodiment of social actors: personal blogs, institutional websites, hobby-specific media… We realized that some sociologists see existing...
Article
We will present the digital methodological chain and the tools we developed for building the Digital Diasporas Atlas which aims at mapping and analyzing the occupation of digital diasporas by migrant communities. Such a chain is composed of four intertwined steps: 1) equipped web exploration and corpus building; 2) data enrichment (location, langua...
Article
Full-text available
It is increasingly common in natural and social sciences to rely on network visualizations to explore relational datasets and illustrate findings. Such practices have been around long enough to prove that scholars find it useful to project networks in a two-dimensional space and to use their visual qualities as proxies for their topological feature...
Article
Full-text available
This article maps a controversy in network science over the last 15 years, dividing the field about the epistemic status of a central notion, scale-freeness. The article accounts for the two main disputes, in 2005 and in 2018, as they unfolded in academic publications and on social media. This article analyzes the conflict, and the reasons why it r...
Article
Full-text available
The expression "public opinion" has long been part of common parlance. However, its value as a scientific measure has been the topic of abundant academic debates over the past several decades. Such debates have produced more variety and contestations rather than consensus on the very definition of public opinion, let alone on how to measure it. Thi...
Preprint
Full-text available
It is an increasingly common practice in several natural and social sciences to rely on network visualisations both as heuristic tools to get a first overview of relational datasets and as a way to offer an illustration of network analysis findings. Such practice has been around long enough to prove that scholars find it useful to project networks...
Conference Paper
The emergence and success of web platforms nurtured a trend within social studies: "Hyperlink is dead!". Capturing their users into mobile applications and specialised web interface to propose them a specific user experience (and business model), the platforms indeed created new information silos in the open World Wide Web space. The simplified ava...
Book
The emergence and success of web platforms raised a gimmick into social studies: “Hyperlink is dead!“. Capturing web users into mobile applications and private web platforms to propose them a specific user experience (and a business model) created indeed new silos in the open World Wide Web space. The simplified availability of user behavioural dat...
Book
Full-text available
Networks are classic but under-acknowledged figures of journalistic storytelling. Who is connected to whom and by which means? Which organizations receive support from which others? What resources or information circulate through which channels and which intermediaries enable and regulate their flows? These are all customary stories and lines of in...
Article
Full-text available
Este artigo discute diferenças e afinidades entre três tipos de rede (Ator-Rede, Análise de Redes e Redes Digitais) importantes para o Digital STS. 2 Nas últimas décadas, a colonização de pesquisas em STS foi lenta e gradual. Ela se inicia com a Teoria Ator-Rede (TAR), que oferece um conjunto de noções para descrever a construção de fenômenos socio...
Chapter
Full-text available
Networks are classic but under-acknowledged figures of journalistic storytelling. Who is connected to whom and by which means? Which organizations receive support from which others? What resources or information circulate through which channels and which intermediaries enable and regulate their flows? These are all customary stories and lines of in...
Book
Full-text available
This paper discusses the differences and affinities among three types of networks (namely Actor-?Network, Network Analysis and Digital Networks) that are playing an increasingly important role in digital STS.In the last few decades, the idea of ‘network’ has slowly but steadily colonized broad strands of STS research. This colonization started with...
Article
Full-text available
In this article, we present a few lessons we learnt in the establishment of the Sciences Po médialab. As an interdisciplinary laboratory associating social scientists, code developers and information designers, the médialab is not one of a kind. In the last years, several of such initiatives have been established around the world to harness the pot...
Book
Full-text available
No doubt, networks have become indispensable mathematical tools in many aspects oflife in the twenty first century. They allow us to calculate all kinds of relational metricsand to quantify the properties of their nodes, clusters and global structures. Thesemodes of calculation are becoming increasingly prevalent in an age of digital data. Butnetwo...
Article
Full-text available
Cet article reprend une recherche de Luc Boltanski sur les enseignants de l'IEP de Paris. Dans cette recherche, Boltanski s'appuie sur une représentation tabulaire des champs sociaux pour montrer que la classe dominante se caractérise avant tout par sa multipositionnalité, c'est-à-dire par la tendance de ses membres à occuper plusieurs positions da...
Book
We present the RICardo data visualization application (http://ricardo.medialab.sciences-po.fr) designed to explore a XIXth century international trade statistics database.The tool offers 3 levels of exploration: a World trade level, a Country level detailing the commercial partners of a chosen country, and a Bilateral level revealing the difference...
Article
Full-text available
Networks have become the de facto diagram of the Big Data age (try searching Google Images for [big data AND visualisation] and see). The concept of networks has become central to many fields of human inquiry and is said to revolutionise everything from medicine to markets to military intelligence. While the mathematical and analytical capabilities...
Conference Paper
Full-text available
The web is a field of investigation for social sciences, and platform-based studies have long proven their relevance. However the generic web is rarely studied in itself though it contains crucial aspects of the embodiment of social actors: personal blogs, institutional websites, hobby-specific media… We realized that some sociologists see existing...
Article
Full-text available
A partir du cas du web du livre en France, cet article interroge la notion de zoom dans l’exploration visuelle de réseaux. En soumettant un graphe à des questionnements et traitements successifs, il devient possible de comprendre ce qui apparaît comme une anomalie pour le chercheur, un entrelacement sur le plan visuel de deux communautés pourtant d...
Article
Full-text available
Networks have become the de facto diagram of the Big Data age (try searching Google Images for [big data AND visualisation] and see). The concept of networks has become central to many fields of human inquiry and is said to revolutionise everything from medicine to markets to military intelligence. While the mathematical and analytical capabilities...
Article
Full-text available
The identification of nodes occupying important positions in a network structure is crucial for the understanding of the associated real-world system. Usually, betweenness centrality (BC) is used to evaluate a node capacity to connect different graph regions. However, we argue here that this measure is not adapted for that task, as it gives equal w...
Article
Full-text available
Gephi is a network visualization software used in various disciplines (social network analysis, biology, genomics…). One of its key features is the ability to display the spatialization process, aiming at transforming the network into a map, and ForceAtlas2 is its default layout algorithm. The latter is developed by the Gephi team as an all-around...
Conference Paper
Full-text available
Creating an efficient, interactive and flexible unified graph visualization system is a difficult problem. We present a hardware accelerated OpenGL graph drawing engine, in conjunction with a flexible preview package. While the interactive OpenGL visualization focuses on performance, the preview focuses on aesthetics and simple network map creation...
Article
This article analyses the “migrants’ matrimonial Web” as an original form of ethnic business that equates “doing business” to “networking” (i.e. creating new networks rather than relying on existing ethnic ones). The authors show that it is based on an unusual profiling economy in which profiles (and therefore users) are ethnicized: “networking” =...
Conference Paper
Full-text available
Gephi is an open source software for graph and network analysis. It uses a 3D render engine to display large networks in real-time and to speed up the exploration. A flexible and multi-task architecture brings new possibilities to work with complex data sets and produce valuable visual results. We present several key features of Gephi in the contex...
Article
Full-text available
Gephi is an open source software for graph and network analysis. It uses a 3D render engine to display large networks in real-time and to speed up the exploration. A flexible and multi-task architecture brings new possibilities to work with complex data sets and produce valuable visual results. We present several key features of Gephi in the contex...
Conference Paper
Full-text available
This paper presents two different perspectives of the Web: a global one that corresponds to the classical approach of search engines and a local one that we propose as an alternative approach. The search engines perform their indexing operation on the whole Web in an automatic way and display their results according to it by proposing a perfectible...
Conference Paper
Full-text available
Geographical information systems (GIS) associate innovative statistical and visual tools and play a large role in the exploration of geographical data spaces. In the numeric world, web is a new space that remains to be explored. Heterogeneous and highly dynamic with very large dataset, its analysis requires adapted tool as much as a specific method...

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Projects

Projects (2)
Project
An evolving research agenda around network graphs, their affordances and their social lives – with a particular focus on their use in digital methods research and digital journalism.
Archived project