5166 search results - page 357 / 1034 » Web Query Optimizer |
263
click to vote
ICDE
2008
IEEE
16 years 8 months ago
2008
IEEE
Applications that monitor functions over rapidly and unpredictably changing data, express their needs as continuous queries. Our focus is on a rich class of queries, expressed as p...
203
click to vote
SIGMOD
2004
ACM
16 years 6 months ago
2004
ACM
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
209
click to vote
VLDB
2002
ACM
15 years 6 months ago
2002
ACM
Structurally recursive XML queries are an important query class that follows the structure of XML data. At present, it is difficult for XQuery to type and optimize structurally re...
278
click to vote
GIS
2009
ACM
16 years 7 months ago
2009
ACM
Geographic information retrieval encompasses important tasks including finding the location of a user, and locations relevant to their search queries. Web-based search engines rec...
208
click to vote
WWW
2008
ACM
16 years 7 months ago
2008
ACM
Web search engines are facing formidable performance challenges due to data sizes and query loads. The major engines have to process tens of thousands of queries per second over t...