571 search results - page 28 / 115 » Concept-Based Feature Generation and Selection for Informati... |
192
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CIVR
2008
Springer
15 years 8 months ago
2008
Springer
Recent content-based video retrieval systems combine output of concept detectors (also known as high-level features) with text obtained through automatic speech recognition. This ...
190
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CIKM
2010
Springer
15 years 5 months ago
2010
Springer
This paper introduces the notion of temporally constrained ranked retrieval, which, given a query and a time constraint, produces the best possible ranked list within the specifi...
166
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IUI
2005
ACM
16 years 4 days ago
2005
ACM
Pinpoint is a promising first step towards using a rich model of task context in proactive and dynamic IR systems. Pinpoint allows a user to navigate decision tree representations...
188
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TREC
2007
15 years 7 months ago
2007
In TREC 2007, Language Computer Corporation explored how a new, semantically-rich framework for information retrieval could be used to boost the overall performance of the answer ...
205
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SAC
2008
ACM
15 years 6 months ago
2008
ACM
A major obstacle that decreases the performance of text classifiers is the extremely high dimensionality of text data. To reduce the dimension, a number of approaches based on rou...