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SIGIR
2008
ACM
13 years 7 months ago
A new probabilistic retrieval model based on the dirichlet compound multinomial distribution
The classical probabilistic models attempt to capture the Ad hoc information retrieval problem within a rigorous probabilistic framework. It has long been recognized that the prim...
Zuobing Xu, Ram Akella
CIKM
2008
Springer
13 years 9 months ago
Active relevance feedback for difficult queries
Relevance feedback has been demonstrated to be an effective strategy for improving retrieval accuracy. The existing relevance feedback algorithms based on language models and vect...
Zuobing Xu, Ram Akella
CGO
2008
IEEE
14 years 2 months ago
Spice: speculative parallel iteration chunk execution
The recent trend in the processor industry of packing multiple processor cores in a chip has increased the importance of automatic techniques for extracting thread level paralleli...
Easwaran Raman, Neil Vachharajani, Ram Rangan, Dav...
CCS
2008
ACM
13 years 9 months ago
Stale-safe security properties for group-based secure information sharing
Attribute staleness arises due to the physical distribution of authorization information, decision and enforcement points. This is a fundamental problem in virtually any secure di...
Ram Krishnan, Jianwei Niu, Ravi S. Sandhu, William...
INFOCOM
2008
IEEE
14 years 1 months ago
Adding Capacity Points to a Wireless Mesh Network Using Local Search
Abstract— Wireless mesh network deployments are popular as a cost-effective means to provide broadband connectivity to large user populations. As the network usage grows, network...
Joshua Robinson, Mustafa Uysal, Ram Swaminathan, E...