2514 search results - page 30 / 503 » On the Computation of Approximations of Database Queries |
258
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VLDB
2001
ACM
16 years 6 months ago
2001
ACM
Abstract In this paper we present a mechanism for approximately translating Boolean query constraints across heterogeneous information sources. Achieving the best translation is ch...
178
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GIS
2002
ACM
15 years 6 months ago
2002
ACM
A very important class of queries in GIS applications is the class of K-Nearest Neighbor queries. Most of the current studies on the K-Nearest Neighbor queries utilize spatial ind...
178
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CIVR
2006
Springer
15 years 10 months ago
2006
Springer
High-dimensional index is one of the most challenging tasks for content-based video retrieval (CBVR). Typically, in video database, there exist two kinds of clues for query: visual...
185
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ICDE
2010
IEEE
16 years 6 months ago
2010
IEEE
Uncertain data are inherent in many applications such as environmental surveillance and quantitative economics research. As an important problem in many applications, KNN query has...
178
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SIGMOD
2004
ACM
16 years 6 months ago
2004
ACM
Spatial Database Management Systems (SDBMS), e.g., Geographical Information Systems, that manage spatial objects such as points, lines, and hyper-rectangles, often have very high ...