2845 search results - page 521 / 569 » Evaluating Paragraph Retrieval for |
163
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CSFW
2004
IEEE
15 years 10 months ago
2004
IEEE
We study the specification of access control policy in large-scale distributed systems. We present Cassandra, a language and system for expressing policy, and the results of a sub...
192
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CICLING
2006
Springer
15 years 10 months ago
2006
Springer
Abstract. In this paper, we present a method for the automatic acquisition of semantic-based reformulations from natural language questions. Our goal is to find useful and generic ...
186
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CIKM
2008
Springer
15 years 8 months ago
2008
Springer
Online detection of video clips that present previously unseen events in a video stream is still an open challenge to date. For this online new event detection (ONED) task, existi...
165
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CIVR
2008
Springer
15 years 8 months ago
2008
Springer
Great effort has been made to improve video concept detection and continuous progress has been reported. With the current evaluation method being confined to carefully annotated d...
179
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GPC
2008
Springer
15 years 7 months ago
2008
Springer
The increasing popularity of personal wireless devices has raised new demands for the efficient discovery of heterogeneous devices and services in pervasive environments. With the...