2043 search results - page 205 / 409 » The Limits of Querying Ontologies |
ATAL
2003
Springer
14 years 24 days ago
2003
Springer
Personalized information agents can help overcome some of the limitations of communal Web information sources such as portals and search engines. Two important components of these...
ACL
2008
13 years 10 months ago
2008
Query expansion is an effective technique to improve the performance of information retrieval systems. Although hand-crafted lexical resources, such as WordNet, could provide more...
SDM
2003
SIAM
13 years 10 months ago
2003
SIAM
In earlier work we have introduced and explored a variety of different probabilistic models for the problem of answering selectivity queries posed to large sparse binary data set...
CORR
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. We study here fundamental issues involved in top-k query evaluation in probabilistic databases. We consider simple probabilistic databases in which probabilities are asso...
SPIRE
2010
Springer
13 years 7 months ago
2010
Springer
During the last years a great number of Query Performance Prediction methods have been proposed. However, this explosion of prediction method proposals have not been paralleled by ...