441 search results - page 84 / 89 » Query expansion using random walk models |
CIKM
2011
Springer
12 years 9 months ago
2011
Springer
In this paper, we reveal a common deficiency of the current retrieval models: the component of term frequency (TF) normalization by document length is not lower-bounded properly;...
STOC
2009
ACM
14 years 10 months ago
2009
ACM
A mechanism for releasing information about a statistical database with sensitive data must resolve a trade-off between utility and privacy. Publishing fully accurate information ...
SIGIR
2012
ACM
12 years 7 days ago
2012
ACM
Many private and/or public organizations have been reported to create and monitor targeted Twitter streams to collect and understand users’ opinions about the organizations. Tar...
INFOCOM
2005
IEEE
14 years 3 months ago
2005
IEEE
Data dissemination in sensor networks requires four components: resource discovery, route establishment, packet forwarding, and route maintenance. Resource discovery can be the mos...
SIGMETRICS
2005
ACM
14 years 3 months ago
2005
ACM
Peer-to-peer (p2p) file sharing systems are characterized by highly replicated content distributed among nodes with enormous aggregate resources for storage and communication. Th...