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» Online communities as communities of practice: a case study
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CHI
2005
ACM
16 years 6 months ago
Assessing differential usage of usenet social accounting meta-data
We describe a usage study of Netscan\Tech, a system that generates and publishes daily a range of social metrics across three dimensions: newsgroup, author, and thread, for a set ...
A. J. Bernheim Brush, Xiaoqing Wang, Tammara Combs...
CSCW
2010
ACM
16 years 3 months ago
Understanding deja reviewers
People who review products on the web invest considerable time and energy in what they write. So why would someone write a review that restates earlier reviews? Our work looks to ...
Eric Gilbert, Karrie Karahalios
CE
2007
102views more  CE 2007»
15 years 6 months ago
Environmental design for a structured network learning society
Social interactions profoundly impact the learning processes of learners in traditional societies. The rapid rise of the Internet using population has been the establishment of nu...
Ben Chang, Nien-Heng Cheng, Yi-Chan Deng, Tak-Wai ...
SDM
2007
SIAM
187views Data Mining» more  SDM 2007»
15 years 7 months ago
Topic Models over Text Streams: A Study of Batch and Online Unsupervised Learning
Topic modeling techniques have widespread use in text data mining applications. Some applications use batch models, which perform clustering on the document collection in aggregat...
Arindam Banerjee, Sugato Basu
MC
2001
140views Computer Science» more  MC 2001»
15 years 7 months ago
Cooperative model production in systems design to support knowledge management
The computer support of cooperation and knowledge production across socially distributed activity systems has become an important topic in the context of the discourse on ,,knowle...
Christoph Clases