Riivo Kikas
Since September 2012, I am a Ph.D. Student at Institute of Computer Science, University of Tartu supervised by Marlon Dumas and by Dietmar Pfahl. I am a member of the software engineering research group.

I started my PhD research focusing on social network analysis, especially analysing temporal evolution of networks. I worked on social network dynamics, evolution, cascading processes on networks.
At some point in 2014, I moved into the area of mining software repositories. I am interested if the interaction dynamics of open source project teams can tell us anything about the project outcome, sustainability, quality, success, etc.

R. Kikas, M. Dumas, D. Pfahl. Using Dynamic and Contextual Features to Predict Issue Lifetime in GitHub Projects. To appear, In Proceedings of The 13th International Conference on Mining Software Repositories (2016), MSR '16, ACM PDF

M. Karsai, G. Iñiguez, R. Kikas, K. Kaski, J. Kertész. Local cascades induced global contagion: How heterogeneous thresholds, exogenous effects, and unconcerned behaviour govern online adoption spreading Sci. Rep. 6, 27178; doi: 10.1038/srep27178 (2016). Preprint PDF
Media coverage: ScienceDaily: Skype data of 500 million people reveals the real patterns of social adoption.

R. Kikas, M. Dumas, D. Pfahl. Issue Dynamics in Github Projects. In: Proc. of the 16th International Conference on Product-Focused Software Process Improvement (PROFES '15), Springer, 2015 Bozen-Bolzano, Italy. PDF Springer

R. Kikas, M. Dumas, A. Saabas. Explaining International Migration in the Skype Network: The Role of Social Network Features. In Proceedings of the 1st ACM Workshop on Social Media World Sensors (SIdEWayS '15). ACM, New York, NY, USA, 17-22. ACM DL

I. Verenich, R. Kikas, M. Dumas, D. Melnikov. Combining Propensity and Influence Models for Product Adoption Prediction.. In Proc. of the IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), Paris, France, August 2015. ACM.

I. Teinemaa, A. Leontjeva, M. Dumas, R. Kikas. Community-Based Prediction of Activity Change in Skype.. In Proc. of the IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), Paris, France, August 2015. ACM.

G. Rossetti, L. Pappalardo, R. Kikas, D. Pedreschi, F. Giannotti, M. Dumas. Community-Based Prediction of Activity Change in Skype.. In Proc. of the IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), Paris, France, August 2015. ACM.

R. Kikas, M. Dumas, M. Karsai. Bursty egocentric network evolution in Skype. Social Network Analysis and Mining 3.4 (2013): 1393-1401. PDF

You can reach me via e-mail: riivokik (ät) ut (dot) ee or via linkedin. My office is at J. Liivi 2 - 315. Tartu, Estonia.

Last Modified: 2016-08-24 15:28:31