2607 search results - page 160 / 522 » An Ontology-Based Information Retrieval Model |
175
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SIGIR
2005
ACM
16 years 2 days ago
2005
ACM
We introduce a new model for semantic annotation and retrieval from image databases. The new model is based on a probabilistic formulation that poses annotation and retrieval as c...
285
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GIS
2006
ACM
16 years 7 months ago
2006
ACM
Location information gathered from a variety of sources in the form of sensor data, video streams, human observations, and so on, is often imprecise and uncertain and needs to be ...
198
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WWW
2011
ACM
15 years 1 months ago
2011
ACM
Ambiguous queries constitute a significant fraction of search instances and pose real challenges to web search engines. With current approaches the top results for these queries ...
223
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ECIR
2011
Springer
14 years 10 months ago
2011
Springer
In large web search engines the performance of Information Retrieval systems is a key issue. Block-based compression methods are often used to improve the search performance, but c...
171
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SIGIR
1996
ACM
15 years 10 months ago
1996
ACM
The aggregated structure of documents plays a key role in full-text, multimedia, and network Information Retrieval (IR). Considering aggregation provides new querying facilities a...