486 search results - page 68 / 98 » An Efficient Path Index for Querying Semi-structured Data |
213
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ICDE
2007
IEEE
16 years 1 months ago
2007
IEEE
Current approaches to K Nearest Neighbor (KNN) search in mobile sensor networks require certain kind of indexing support. This index could be either a centralized spatial index or...
202
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ICDE
1998
IEEE
16 years 1 months ago
1998
IEEE
Similarity search in multimedia databases requires an efficient support of nearest-neighbor search on a large set of high-dimensional points as a basic operation for query process...
IDEAS
2007
IEEE
15 years 6 months ago
2007
IEEE
Historically, bitmap indexing has provided an important database capability to accelerate queries. However, only a few database systems have implemented these indexes because of t...
205
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ICDE
2000
IEEE
16 years 1 months ago
2000
IEEE
In high-dimensional and complex metric spaces, determining the nearest neighbor (NN) of a query object ? can be a very expensive task, because of the poor partitioning operated by...
EDBT
2008
ACM
15 years 12 months ago
2008
ACM
Index trees created using distance based indexing are difficult to maintain online since the distance function involved is often costly to compute. This problem is intensified whe...