2228 search results - page 424 / 446 » On Database Theory and XML |
176
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ICDT
2009
ACM
15 years 10 months ago
2009
ACM
We continue the study of approximating the number of distinct elements in a data stream of length n to within a (1? ) factor. It is known that if the stream may consist of arbitra...
84
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WWW
2009
ACM
15 years 10 months ago
2009
ACM
Social media websites promote diverse user interaction on media objects as well as user actions with respect to other users. The goal of this work is to discover community structu...
128
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WWW
2008
ACM
15 years 10 months ago
2008
ACM
We discover communities from social network data, and analyze the community evolution. These communities are inherent characteristics of human interaction in online social network...
WWW
2003
ACM
15 years 10 months ago
2003
ACM
Recent advances in information retrieval over hyperlinked corpora have convincinglydemonstratedthat links carry less noisy information than text. We investigate the feasibility of...
KDD
2009
ACM
15 years 10 months ago
2009
ACM
This paper describes and evaluates privacy-friendly methods for extracting quasi-social networks from browser behavior on user-generated content sites, for the purpose of finding ...