257 search results - page 15 / 52 » Learning Unions of Tree Patterns Using Queries |
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
WAIM
2004
Springer
15 years 3 months ago
2004
Springer
A top-N selection query against a relation is to find the N tuples that satisfy the query condition the best but not necessarily completely. In this paper, we propose a new method ...
92
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WAIM
2007
Springer
15 years 3 months ago
2007
Springer
To solve the overlapping search of multidimensional spatial database containing large quantity of objects with dynamic spatial extent, this paper proposes an index structure named ...
MIR
2006
ACM
15 years 3 months ago
2006
ACM
Scalable approaches to video content classification are limited by an inability to automatically generate representations of events ode abstract temporal structure. This paper pre...
101
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ICASSP
2008
IEEE
15 years 4 months ago
2008
IEEE
CALL (Computer Assisted Language Learning) systems using ASR (Automatic Speech Recognition) for second language learning have received increasing interest recently. However, it st...