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» Indexing Shared Content in Information Retrieval Systems
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CIKM
2009
Springer
16 years 1 months ago
A query model based on normalized log-likelihood
Leveraging information from relevance assessments has been proposed as an effective means for improving retrieval. We introduce a novel language modeling method which uses inform...
Edgar Meij, Wouter Weerkamp, Maarten de Rijke
CCS
2009
ACM
16 years 7 months ago
PBES: a policy based encryption system with application to data sharing in the power grid
In distributed systems users need the ability to share sensitive content with multiple other recipients based on their ability to satisfy arbitrary policies. One such system is el...
Rakeshbabu Bobba, Himanshu Khurana, Musab AlTurki,...
SIGMOD
2007
ACM
144views Database» more  SIGMOD 2007»
16 years 6 months ago
The TopX DB&IR engine
This paper proposes a demo of the TopX search engine, an extensive framework for unified indexing, querying, and ranking of large collections of unstructured, semistructured, and ...
Martin Theobald, Ralf Schenkel, Gerhard Weikum
SAC
2006
ACM
16 years 15 days ago
Schemes for SR-Tree packing
Modern database applications like geographic information systems, multimedia databases, and digital libraries dealing with huge volumes of high dimensional data, make use of multi...
Jayendra Venkateswaran, S. R. Subramanya
CIKM
2007
Springer
16 years 22 days ago
Recognition and classification of noun phrases in queries for effective retrieval
It has been shown that using phrases properly in the document retrieval leads to higher retrieval effectiveness. In this paper, we define four types of noun phrases and present an...
Wei Zhang, Shuang Liu, Clement T. Yu, Chaojing Sun...