Monthly Archives: June 2007

How newsgroups refer to NetScan data

Reflections and Reactions to Social Accounting Meta-Data. Eric Gleave (U of Washington) and Marc Smith (Microsoft Research). At C&T. In 18 months, there were about 5000 messages that explicitly referred to “netscan.research”. Analyzed/coded 952 messages. Basic findings: Half discuss groups. … Continue reading

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Rhythms of social interaction at Facebook

Rhythms of social interaction: messaging within a massive online network. Scott A. Golder, Dennis M. Wilkinson and Bernardo A. Huberman (HP labs). Scott Golder presenting at C&T. Log analysis of Facebook messaging patterns, from 496 North American universities. The college … Continue reading

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Group Formation in Large Social Networks

L. Backstrom, D. Huttenlocher, J. Kleinberg and X. Lan. “Group Formation in Large Social Networks: Membership, Growth, and Evolution”, Proceedings of KDD 2006. Datasets on membership in LiveJournal groups and explicit “friend” relationships; and on publishing in conferences and explicit … Continue reading

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Kraut: Developing Commitment Through Conversation

Today I’m at the Communities and Technologies conference, at the workshop on studying interaction in online communities. Bob Kraut is discussing some of the data analysis issues in his study in Usenet newsgroups of what independent variables predict whether a … Continue reading

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Collusion-resistant, Incentive-compatible

At EC-07, Radu Jurca presented a paper extending work on eliciting honest ratings to consider situations where a set of players may collude to increase their payments for ratings. The setting is the same as that of my paper with … Continue reading

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Recommenders and Sales Diversity

At the EC ’07 conference, Kartik Hosanagar presented a paper modeling the impact of recommender systems on sales diversity. Do they contribute to a long tail, where lots of products get a few sales, or do they reinforce blockbusters. The … Continue reading

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