At the university since

• Fall Semester 2013/2014

Module

• Social Networks

Business Experience

• Assistant Research Professor at the Institute for Software Research (School of Computer Science), Carnegie Mellon University, Pittsburgh/USA

Publications

Monographs

• Hennig, M., Brandes, U., Pfeffer, J. and Mergel, I. (2012): Studying Social Networks. A Guide to Empirical Research. Frankfurt/Chicago: Campus Verlag/University of Chicago Press.

Articles in Anthologies

• Pfeffer, J. and Carley, K. (2012): Social Networks, Social Media, Social Change. In: Schmorrow, D.D. and Nicholson, D.M. (Eds.): Advances in Design for Cross-Cultural Activities Part II. Boca Raton: CRC Press, 273-282.
• Carley, K., Morgan, G., Lanham, M. and Pfeffer, J. (2012): Multi-Modeling and Socio-cultural complexity: Reuse and Validation. In: Schmorrow, D.D. and Nicholson, D.M. (Eds.): Advances in Design for Cross-Cultural Activities Part I. Boca Raton: CRC Press, 265-274.
• Carley, K. and Pfeffer, J. (2012): Dynamic Network Analysis (DNA) and ORA . In: Schmorrow, D. D. and Nicholson, D. M. (Eds.): Advances in Design for Cross-Cultural Activities Part II. Boca Raton: CRC Press, 128-137.
• Pfeffer, J. und Neumann-Braun, K. (2011): Nest Warmth in Image Based Online Networks (in German: Nestwärme in Bild-vermittelten Netzwerken). In: Fuhse, J. und Stegbauer, C. (Hrsg.): Kultur und mediale Kommunikation in sozialen Netzwerken (Culture and Media Communication in Social Networks). Wiesbaden: VS Verlag, 125-148.
• Pfeffer, J. und Fleissner, P. (2010): Modeling (in German: Modellbildung). In: Stegbauer, C. und Häußling, R. (Hrsg.): Handbuch Netzwerkforschung. Wiesbaden: VS Verlag, 485-494.

Articles in Conference Proceedings and Journals

• Morstatter, F., Pfeffer, J., Liu, H. and Carley, K. (2013): Is the Sample Good Enough? Comparing Data from Twitter's Streaming API with Twitter's Firehose. In: International AAAI Conference on Weblogs and Social Media (ICWSM), Boston, MA, 400-408.
• Carley, K., Pfeffer, J., Liu, H., Morstatter, F. and Goolsby, R. (2013): Near Real Time Assessment of Social Media Using Geo-Temporal Network Analytics. In: Proceedings of IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), Niagara Falls, 25.-28.08.2013.
• Pfeffer, J. (2013): Fundamentals of Visualizing Communication Networks. In: IEEE China Communications 10 (3), 82-90.
• Pfeffer, J. and Carley, K. (2012): k-Centralities: Local Approximations of Global Measures Based on Shortest Paths. In: Proceedings of the WWW Conference 2012, 1st International Workshop on Large Scale Network Analysis (LSNA 2012), Lyon/France, 1043-1050.
• Federico, P., Pfeffer, J., Aigner, W., Miksch, S. and Zenk, L. (2012): Visual Analysis of Dynamic Networks using Change Centrality. In: Proceedings of IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), Istanbul/Turkey.
• Pfeffer, J. and Carley, K. (2011): Modeling and Calibrating Real World Interpersonal Networks. In: Proceedings of the IEEE NSW 2011, 1st International Workshop on Network Science. West Point, New York, 9-16.
• Kayali, F., Götzenbrucker, G., Schwarz, V., Purgathofer, P., Franz, B. and Pfeffer, J. (2011): Serious Beats: Transdisciplinary Research Methodologies for Designing and Evaluating a Socially Integrative Serious Music-Based Online Game. In: Proceedings of the 2011 DiGRA Conference, Uthrecht/The Netherlands.
• Windhager, F., Smuc, M., Zenk, L., Federico, P., Pfeffer, J., Aigner, W. and Miksch, S. (2011): Visual Knowledge Communication Analytics at a University Department. In: Proceedings of ASNA 2011, Zurich/Switzerland.

Technical Reports

• Carley, K., Reminga, J., Storrick, J., Pfeffer, J. and Columbus, D. (2013): ORA User's Guide 2013. Technical Report, CMU-ISR-13-108, Carnegie Mellon University, School of Computer Science, Institute for Software Research.
• Carley, K., Pfeffer, J., Reminga, J., Storrick, J. and Columbus, D. (2012): ORA User's Guide 2012. Technical Report, CMU-ISR-12-105, Carnegie Mellon University, School of Computer Science, Institute for Software Research.

• Wei, W., Pfeffer, J., Reminga, J. and Carley, K. (2011): Handling Weighted, Asymmetric, Self Linked, and Disconnected Networks in ORA. Technical Report, CMU-ISR-11-113, Carnegie Mellon University, School of Computer Science, Institute for Software Research.