6746 search results - page 592 / 1350 » Multimodal Database Query |
189
Voted
VLDB
1998
ACM
15 years 11 months ago
1998
ACM
Many applications compute aggregate functions over an attribute (or set of attributes) to find aggregate values above some specified threshold. We call such queries iceberg querie...
188
Voted
VLDB
1998
ACM
15 years 11 months ago
1998
ACM
Query optimizers normally compile queries into one optimal plan by assuming complete knowledge of all cost parameters such asselectivity and resourceavailability. The execution of...
219
Voted
SIGMOD
1997
ACM
15 years 11 months ago
1997
ACM
We study similarity queries for time series data where similarity is defined in terms of a set of linear transformations on the Fourier series representation of a sequence. We ha...
209
click to vote
DASFAA
2009
IEEE
15 years 11 months ago
2009
IEEE
Abstract. Query expansion has received extensive attention in information retrieval community. Although semantic based query expansion appears to be promising in improving retrieva...
268
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DBISP2P
2006
Springer
15 years 11 months ago
2006
Springer
Abstract. This paper addresses the problem of data placement, indexing, and querying large XML data repositories distributed over an existing P2P service infrastructure. Our archit...