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FOCS
2009
IEEE
14 years 2 months ago
The Data Stream Space Complexity of Cascaded Norms
Abstract— We consider the problem of estimating cascaded aggregates over a matrix presented as a sequence of updates in a data stream. A cascaded aggregate P ◦Q is defined by ...
T. S. Jayram, David P. Woodruff
SG
2009
Springer
14 years 1 months ago
TagClusters: Semantic Aggregation of Collaborative Tags beyond TagClouds
TagClouds is a popular visualization for the collaborative tags. However it has some instinct problems such as linguistic issues, high semantic density and poor understanding of hi...
Ya-Xi Chen, Rodrigo Santamaría, Andreas But...
KDD
2008
ACM
199views Data Mining» more  KDD 2008»
14 years 7 months ago
Efficient computation of personal aggregate queries on blogs
There is an exploding amount of user-generated content on the Web due to the emergence of "Web 2.0" services, such as Blogger, MySpace, Flickr, and del.icio.us. The part...
Ka Cheung Sia, Junghoo Cho, Yun Chi, Belle L. Tsen...
ICDE
2009
IEEE
124views Database» more  ICDE 2009»
14 years 9 months ago
Shared Winner Determination in Sponsored Search Auctions
Abstract-- Sponsored search auctions form a multibillion dollar industry. Search providers auction advertisement slots on search result pages to advertisers who are charged only if...
David J. Martin, Joseph Y. Halpern
SIGIR
2009
ACM
14 years 2 days ago
Evaluating effects of machine translation accuracy on cross-lingual patent retrieval
We organized a machine translation (MT) task at the Seventh NTCIR Workshop. Participating groups were requested to machine translate sentences in patent documents and also search ...
Atsushi Fujii, Masao Utiyama, Mikio Yamamoto, Take...