R. Breuer, R. Klamma, Y. Cao, and R. Vuorikari, Social Network Analysis of 45,000 Schools: A Case Study of Technology Enhanced Learning in Europe, Learning in the synergy of multiple disciplines, pp.166-180, 2009.
DOI : 10.1017/CBO9780511519819.003

Y. Cao, S. Govaerts, D. Dikke, N. Faltin, and D. Gillet, Helping each other teach: design and realisation of a social tutoring platform, Journal of immersive education (jied) -proceedings of, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01205524

F. Cherradi, Web-based bartering platform, 2015.

R. Clariana, T. Engelmann, and W. Yu, Using centrality of concept maps as a measure of problem space states in computer-supported collaborative problem solving, Educational Technology Research and Development, pp.423-442, 2013.
DOI : 10.1007/s11423-013-9293-6

T. De-jong, W. R. Van-joolingen, A. Giemza, I. Girault, U. Hoppe et al., Learning by creating and exchanging objects: The SCY experience, British Journal of Educational Technology, vol.22, issue.6, pp.909-921, 2010.
DOI : 10.1111/j.1467-8535.2010.01121.x

URL : https://hal.archives-ouvertes.fr/hal-00948739

D. Wever, B. Schellens, T. Valcke, M. Van-keer, and H. , Content analysis schemes to analyze transcripts of online asynchronous discussion groups: A review, Computers & Education, vol.46, issue.1, pp.6-28, 2006.
DOI : 10.1016/j.compedu.2005.04.005

E. Duval, Attention please! learning analytics for visualization and recommendation, 1st international conference on learning analytics and knowledge, pp.9-17, 2011.

F. M. Facca and P. L. Lanzi, Mining interesting knowledge from weblogs: a survey, Data & Knowledge Engineering, vol.53, issue.3, pp.225-241, 2005.
DOI : 10.1016/j.datak.2004.08.001

R. Ferguson, Learning analytics: drivers, developments and challenges, International Journal of Technology Enhanced Learning, vol.4, issue.5/6, pp.304-317, 2012.
DOI : 10.1504/IJTEL.2012.051816

T. Göhnert, S. Ziebarth, N. Malzahn, and H. Hoppe, Enriching (Learning) Community Platforms with Learning Analytics Components, Collaboration and technology, pp.177-184, 2014.
DOI : 10.1007/978-3-319-10166-8_16

A. Harrer and T. Göhnert, Integrated representations and small data, Proceedings of the Fifth International Conference on Learning Analytics And Knowledge, LAK '15, pp.406-407, 2015.
DOI : 10.1145/2723576.2723665

A. Harrer, N. Malzahn, S. Zeini, and H. U. Hoppe, Combining social network analysis with semantic relations to support the evolution of a scientific community, Proceedings of the 8th iternational conference on Computer supported collaborative learning, CSCL'07, pp.267-276, 2007.
DOI : 10.3115/1599600.1599650

H. U. Hoppe, J. Engler, and S. Weinbrenner, The impact of structural characteristics of concept maps on automatic quality measurement, 2012.

A. Jimoyiannis, Designing and implementing an integrated technological pedagogical science knowledge framework for science teachers professional development, Computers & Education, vol.55, issue.3, pp.1259-1269, 2010.
DOI : 10.1016/j.compedu.2010.05.022

M. D. Laat, V. Lally, L. Lipponen, and R. Simons, Investigating patterns of interaction in networked learning and computer-supported collaborative learning: A role for social network analysis. I, J. Computer-Supported Collaborative Learning, pp.87-103, 2007.

A. D. Liddo, S. B. Shum, I. Quinto, M. Bachler, and L. Cannavacciuolo, Discourse-centric learning analytics, Proceedings of the 1st International Conference on Learning Analytics and Knowledge, LAK '11, pp.23-33, 2011.
DOI : 10.1145/2090116.2090120

S. Manske, T. Hecking, L. Bollen, T. Gohnert, A. Ramos et al., A Flexible Framework for the Authoring of Reusable and Portable Learning Analytics Gadgets, 2014 IEEE 14th International Conference on Advanced Learning Technologies, pp.254-258, 2014.
DOI : 10.1109/ICALT.2014.80

URL : https://hal.archives-ouvertes.fr/hal-01205306

G. Siemens, Learning analytics, Proceedings of the 2nd International Conference on Learning Analytics and Knowledge, LAK '12, pp.4-8, 2012.
DOI : 10.1145/2330601.2330605

V. Southavilay, K. Yacef, P. Reimann, and R. A. Calvo, Analysis of collaborative writing processes using revision maps and probabilistic topic models, Proceedings of the Third International Conference on Learning Analytics and Knowledge, LAK '13, pp.38-47, 2013.
DOI : 10.1145/2460296.2460307

D. D. Suthers, K. Lund, C. P. Rosé, C. Teplovs, and N. Law, Productive multivocality in the analysis of group interactions, pp.10-978, 1007.
DOI : 10.1007/978-1-4614-8960-3

URL : https://hal.archives-ouvertes.fr/halshs-00986815

O. R. Za?ane and J. Luo, Web usage mining for a better web-based learning environment, Proceedings of conference on advanced technology for education, pp.60-64, 2001.

J. Zhang, M. S. Ackerman, and L. Adamic, Expertise networks in online communities, Proceedings of the 16th international conference on World Wide Web , WWW '07, pp.221-230, 2007.
DOI : 10.1145/1242572.1242603