339 search results - page 44 / 68 » Improved Query Performance with Variant Indexes |
ICMCS
2006
IEEE
15 years 4 months ago
2006
IEEE
In this paper, we present an integrated system for news video retrieval. The proposed system incorporates both speech and visual information in the search mechanisms. The initial ...
MTA
2010
14 years 8 months ago
2010
It is common practice in audiovisual archives to disclose documents using metadata from a structured vocabulary or thesaurus. Many of these thesauri have limited or no structure. T...
186
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GIS
2005
ACM
15 years 11 months ago
2005
ACM
An interesting issue in moving objects databases is to find similar trajectories of moving objects. Previous work on this topic focuses on movement patterns (trajectories with tim...
148
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
This paper analyzes the performance of concurrent (index) scan operations in both record (NSM/PAX) and column (DSM) disk storage models and shows that existing scheduling policies...
IPTPS
2005
Springer
15 years 3 months ago
2005
Springer
Arpeggio is a peer-to-peer file-sharing network based on the Chord lookup primitive. Queries for data whose metadata matches a certain criterion are performed efficiently by using...