2853 search results - page 251 / 571 » On the Efficiency of Provenance Queries |
168
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ADBIS
2000
Springer
15 years 11 months ago
2000
Springer
We consider queries which originate from a mobile unit and whose result depends on the location of the user who initiates the query. Example of such a query is How many people are ...
193
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EDBT
1998
ACM
15 years 11 months ago
1998
ACM
Efficient evaluation of similarity queries is one of the basic requirements for advanced multimedia applications. In this paper, we consider the relevant case where complex similar...
193
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WEBDB
1998
Springer
15 years 11 months ago
1998
Springer
Semistructured graph-based databases have been proposed as well-suited stores for World-Wide Web data. Yet so far, languages for querying such data are too complex for casual Web ...
158
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COMPGEOM
1994
ACM
15 years 10 months ago
1994
ACM
Ray (segment) shooting is the problem of determining the first intersection between a ray (directed line segment) and a collection of polygonal or polyhedral obstacles. In order t...
186
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ESORICS
2006
Springer
15 years 10 months ago
2006
Springer
Data confidentiality is a major concern in database systems. Encryption is a useful tool for protecting the confidentiality of sensitive data. However, when data is encrypted, perf...