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  1. Recent grassroots movements have suggested that online social networks might play a key role in their organization, as adherents have a fast, many-to-many, communication channel to help coordinate their mobili...

    Authors: Raquel Alvarez, David Garcia, Yamir Moreno and Frank Schweitzer
    Citation: EPJ Data Science 2015 4:6
    Content type: Research Published on:

  2. There is an increasing trend of people leaving digital traces through social media. This reality opens new horizons for urban studies. With this kind of data, researchers and urban planners can detect many asp...

    Authors: Silvia Paldino, Iva Bojic, Stanislav Sobolevsky, Carlo Ratti and Marta C González
    Citation: EPJ Data Science 2015 4:5
    Content type: Research Published on:

  3. Spatial variations in the distribution and composition of populations inform urban development, health-risk analyses, disaster relief, and more. Despite the broad relevance and importance of such data, acquiri...

    Authors: Rex W Douglass, David A Meyer, Megha Ram, David Rideout and Dongjin Song
    Citation: EPJ Data Science 2015 4:4
    Content type: Regular article Published on:

  4. We analyse a large mobile phone activity dataset provided by Telecom Italia for the Telecom Big Data Challenge contest. The dataset reports the international country codes of every call/SMS made and received by m...

    Authors: Paolo Bajardi, Matteo Delfino, André Panisson, Giovanni Petri and Michele Tizzoni
    Citation: EPJ Data Science 2015 4:3
    Content type: Regular article Published on:

  6. Human mobility in a city represents a fascinating complex system that combines social interactions, daily constraints and random explorations. New collections of data that capture human mobility not only help ...

    Authors: Manlio De Domenico, Antonio Lima, Marta C González and Alex Arenas
    Citation: EPJ Data Science 2015 4:1
    Content type: Regular article Published on:

  7. Food is a central element of humans’ life, and food preferences are amongst others manifestations of social, cultural and economic forces that influence the way we view, prepare and consume food. Historically,...

    Authors: Claudia Wagner, Philipp Singer and Markus Strohmaier
    Citation: EPJ Data Science 2014 3:38
    Content type: Regular article Published on:

  8. The goal of this thematic series is to provide a discussion venue about recent advances in the study of networks and their applications to the study of collective behavior in socio-technical systems. The serie...

    Authors: Giovanni Luca Ciampaglia, Emilio Ferrara and Alessandro Flammini
    Citation: EPJ Data Science 2014 3:37
    Content type: Editorial Published on:

  9. The application of functional analysis to infer networks in large datasets is potentially helpful to experimenters in various fields. In this paper, we develop a technique to construct networks of statisticall...

    Authors: Woon Peng Goh, Dennis Kwek, David Hogan and Siew Ann Cheong
    Citation: EPJ Data Science 2014 3:36
    Content type: Regular article Published on:

  11. Aim of this paper is to introduce the complex system perspective into retail market analysis. Currently, to understand the retail market means to search for local patterns at the micro level, involving the seg...

    Authors: Diego Pennacchioli, Michele Coscia, Salvatore Rinzivillo, Fosca Giannotti and Dino Pedreschi
    Citation: EPJ Data Science 2014 3:33
    Content type: Regular article Published on:

  12. Communication through social media mediates coordination and information diffusion across a range of social settings. However, online networks are large and complex, and their analysis requires new methods to ...

    Authors: Sandra González-Bailón, Ning Wang and Javier Borge-Holthoefer
    Citation: EPJ Data Science 2014 3:32
    Content type: Regular article Published on:

  15. Detecting and visualizing what are the most relevant changes in an evolving network is an open challenge in several domains. We present a fast algorithm that filters subsets of the strongest nodes and edges re...

    Authors: Przemyslaw A Grabowicz, Luca Maria Aiello and Filippo Menczer
    Citation: EPJ Data Science 2014 3:27
    Content type: Research Published on:

  17. Traded corporations are required by law to have a majority of outside directors on their board. This requirement allows the existence of directors who sit on the board of two or more corporations at the same t...

    Authors: Serguei Saavedra, Luis J Gilarranz, Rudolf P Rohr, Michael Schnabel, Brian Uzzi and Jordi Bascompte
    Citation: EPJ Data Science 2014 3:30
    Content type: Regular article Published on:

  18. We studied a dataset of care episodes in a regional Swedish hospital system. We followed how 2,314,477 patients moved between 8,507 units (hospital wards and outpatient clinics) over seven years. The data also...

    Authors: Jan Ohst, Fredrik Liljeros, Mikael Stenhem and Petter Holme
    Citation: EPJ Data Science 2014 3:29
    Content type: Regular article Published on:

  21. The Internet has unleashed the capacity for planetary-scale collective problem solving (also known as crowdsourcing), with ever increasing successful examples. A key hypothesis behind crowdsourcing is that, at...

    Authors: Nicolas Stefanovitch, Aamena Alshamsi, Manuel Cebrian and Iyad Rahwan
    Citation: EPJ Data Science 2014 3:13
    Content type: Regular article Published on:

  22. One might think that, compared to traditional media, social media sites allow people to choose more freely what to read and what to share, especially for politically oriented news. However, reading and sharing...

    Authors: Jisun An, Daniele Quercia, Meeyoung Cha, Krishna Gummadi and Jon Crowcroft
    Citation: EPJ Data Science 2014 3:12
    Content type: Research Published on:

  23. We present a novel algorithm and validation method for disambiguating author names in very large bibliographic data sets and apply it to the full Web of Science (WoS) citation index. Our algorithm relies only ...

    Authors: Christian Schulz, Amin Mazloumian, Alexander M Petersen, Orion Penner and Dirk Helbing
    Citation: EPJ Data Science 2014 3:11
    Content type: Regular article Published on:

  24. We address the question to what extent the success of scientific articles is due to social influence. Analyzing a data set of over 100,000 publications from the field of Computer Science, we study how centrali...

    Authors: Emre Sarigöl, René Pfitzner, Ingo Scholtes, Antonios Garas and Frank Schweitzer
    Citation: EPJ Data Science 2014 3:9
    Content type: Regular article Published on:

  25. Privacy is ever-growing concern in our society and is becoming a fundamental aspect to take into account when one wants to use, publish and analyze data involving human personal sensitive information. Unfortun...

    Authors: Anna Monreale, Salvatore Rinzivillo, Francesca Pratesi, Fosca Giannotti and Dino Pedreschi
    Citation: EPJ Data Science 2014 3:10
    Content type: Regular article Published on:

  26. Social groups play a crucial role in online social media because they form the basis for user participation and engagement. Although widely studied in their static and evolutionary aspects, no much attention h...

    Authors: David Martin-Borregon, Luca Maria Aiello, Przemyslaw Grabowicz, Alejandro Jaimes and Ricardo Baeza-Yates
    Citation: EPJ Data Science 2014 3:8
    Content type: Regular article Published on:

  27. Wikipedia is a prime example of today’s value production in a collaborative environment. Using this example, we model the emergence, persistence and resolution of severe conflicts during collaboration by coupl...

    Authors: Gerardo Iñiguez, János Török, Taha Yasseri, Kimmo Kaski and János Kertész
    Citation: EPJ Data Science 2014 3:7
    Content type: Regular article Published on:

  28. This study leverages mobile phone data to analyze human mobility patterns in a developing nation, especially in comparison to those of a more industrialized nation. Developing regions, such as the Ivory Coast,...

    Authors: Alexander Amini, Kevin Kung, Chaogui Kang, Stanislav Sobolevsky and Carlo Ratti
    Citation: EPJ Data Science 2014 3:6
    Content type: Regular article Published on:

  29. Evolution of online social networks is driven by the need of their members to shareand consume content, resulting in a complex interplay between individual activity andattention received from others. In a cont...

    Authors: Carmen Vaca Ruiz, Luca Maria Aiello and Alejandro Jaimes
    Citation: EPJ Data Science 2014 3:5
    Content type: Regular article Published on:

  31. The newly released Orange D4D mobile phone data base provides new insights into the use of mobile technology in a developing country. Here we perform a series of spatial data analyses that reveal important geo...

    Authors: Vsevolod Salnikov, Daniel Schien, Hyejin Youn, Renaud Lambiotte and Michael T Gastner
    Citation: EPJ Data Science 2014 3:3
    Content type: Regular article Published on:

  33. Using open source data, we observe the fascinating dynamics of nighttime light. Following a global economic regime shift, the planetary center of light can be seen moving eastwards at a pace of about 60 km per...

    Authors: Peter Cauwels, Nicola Pestalozzi and Didier Sornette
    Citation: EPJ Data Science 2014 3:2
    Content type: Regular article Published on:

  35. City-scale mass gatherings attract hundreds of thousands of pedestrians. These pedestrians need to be monitored constantly to detect critical crowd situations at an early stage and to mitigate the risk that si...

    Authors: Martin Wirz, Tobias Franke, Daniel Roggen, Eve Mitleton-Kelly, Paul Lukowicz and Gerhard Tröster
    Citation: EPJ Data Science 2013 2:5
    Content type: Regular article Published on:

  38. The paper presents an analysis of the length of comments posted in Internet discussion fora, based on a collection of large datasets from several sources. We found that despite differences in the forum languag...

    Authors: Pawel Sobkowicz, Mike Thelwall, Kevan Buckley, Georgios Paltoglou and Antoni Sobkowicz
    Citation: EPJ Data Science 2013 2:2
    Content type: Regular article Published on:

  40. Complex dynamics of social media emerge from the interaction between the patterns of social connectivity of users and the information exchanged along such social ties. Unveiling the underlying mechanisms that ...

    Authors: Luca Maria Aiello, Alain Barrat, Ciro Cattuto, Rossano Schifanella and Giancarlo Ruffo
    Citation: EPJ Data Science 2012 1:12
    Content type: Regular article Published on:

  41. We analyse a large data set of genetic markers obtained from populations of Cymodocea nodosa, a marine plant occurring from the East Mediterranean to the Iberian-African coasts in the Atlantic Ocean. We fully dev...

    Authors: A Paolo Masucci, Sophie Arnaud-Haond, Víctor M Eguíluz, Emilio Hernández-García and Ester A Serrão
    Citation: EPJ Data Science 2012 1:11
    Content type: Regular article Published on:

  42. We study spatiotemporal correlations and temporal diversities of handset-based service usages by analyzing a dataset that includes detailed information about locations and service usages of 124 users over 16 m...

    Authors: Hang-Hyun Jo, Márton Karsai, Juuso Karikoski and Kimmo Kaski
    Citation: EPJ Data Science 2012 1:10
    Content type: Regular article Published on:

  43. Understanding social dynamics that govern human phenomena, such as communications and social relationships is a major problem in current computational social sciences. In particular, given the unprecedented succe...

    Authors: Emilio Ferrara
    Citation: EPJ Data Science 2012 1:9
    Content type: Regular article Published on:

  44. We present a contribution to the debate on the predictability of social events using big data analytics. We focus on the elimination of contestants in the American Idol TV shows as an example of a well defined...

    Authors: Fabio Ciulla, Delia Mocanu, Andrea Baronchelli, Bruno Gonçalves, Nicola Perra and Alessandro Vespignani
    Citation: EPJ Data Science 2012 1:8
    Content type: Regular article Published on:

  46. We examine partisan differences in the behavior, communication patterns and social interactions of more than 18,000 politically-active Twitter users to produce evidence that points to changing levels of partis...

    Authors: Michael D Conover, Bruno Gonçalves, Alessandro Flammini and Filippo Menczer
    Citation: EPJ Data Science 2012 1:6
    Content type: Regular article Published on:

  47. Online social media provide multiple ways to find interesting content. One important method is highlighting content recommended by user’s friends. We examine this process on one such site, the news aggregator ...

    Authors: Tad Hogg and Kristina Lerman
    Citation: EPJ Data Science 2012 1:5
    Content type: Regular article Published on:

  48. Complex networks are often constructed by aggregating empirical data over time, such that a link represents the existence of interactions between the endpoint nodes and the link weight represents the intensity...

    Authors: Gautier Krings, Márton Karsai, Sebastian Bernhardsson, Vincent D Blondel and Jari Saramäki
    Citation: EPJ Data Science 2012 1:4
    Content type: Regular article Published on:

  49. We show that the frequency of word use is not only determined by the word length [1] and the average information content [2], but also by its emotional content. We have analyzed three established lexica of aff...

    Authors: David Garcia, Antonios Garas and Frank Schweitzer
    Citation: EPJ Data Science 2012 1:3
    Content type: Regular article Published on:

  50. A main characteristic of social media is that its diverse content, copiously generated by both standard outlets and general users, constantly competes for the scarce attention of large audiences. Out of this f...

    Authors: Chunyan Wang and Bernardo A Huberman
    Citation: EPJ Data Science 2012 1:2
    Content type: Regular article Published on:
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  • ISSN: 2193-1127 (electronic)