4971 search results - page 390 / 995 » On Scalable Information Retrieval Systems |
197
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CIKM
2009
Springer
15 years 11 months ago
2009
Springer
The nDCG measure has proven to be a popular measure of retrieval effectiveness utilizing graded relevance judgments. However, a number of different instantiations of nDCG exist, d...
214
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CLEF
2008
Springer
15 years 9 months ago
2008
Springer
This paper describes the participation of the Technical University of Catalonia in the CLEF 2008 Question Answering on Speech Transcripts track. We have participated in the Englis...
250
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MM
2010
ACM
15 years 7 months ago
2010
ACM
In this technical demonstration we present a novel web-based tool that allows a user friendly semantic browsing of video collections, based on ontologies, concepts, concept relati...
240
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RR
2010
Springer
15 years 6 months ago
2010
Springer
Semantic wikis and other modern knowledge management systems deviate from traditional knowledge bases in that information ranges from unstructured (wiki pages) over semi-formal (ta...
272
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MM
2004
ACM
16 years 1 months ago
2004
ACM
We consider the problem of learning a mapping function from low-level feature space to high-level semantic space. Under the assumption that the data lie on a submanifold embedded ...