2724 search results - page 307 / 545 » Optimizing Queries on Files |
226
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
180
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DOCENG
2004
ACM
15 years 9 months ago
2004
ACM
With the wide adoption of XML as a standard data representation and exchange format, querying XML documents becomes increasingly important. However, relational database systems co...
141
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SIGECOM
2003
ACM
15 years 9 months ago
2003
ACM
Preference elicitation — the process of asking queries to determine parties’ preferences — is a key part of many problems in electronic commerce. For example, a shopping age...
178
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EDBT
1998
ACM
15 years 8 months ago
1998
ACM
Abstract. In this paper, we propose a new bulk-loading technique for high-dimensional indexes which represent an important component of multimedia database systems. Since it is ver...
158
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DLOG
2003
15 years 5 months ago
2003
Agent systems that search the Semantic Web are seen as killer applications for description logic (DL) inference engines. The guiding examples for the Semantic Web involve informat...