2492 search results - page 295 / 499 » Ontology-based Database Access |
175
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CCS
2007
ACM
16 years 23 days ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
180
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VLDB
2007
ACM
16 years 21 days ago
2007
ACM
The general problem of answering top-k queries can be modeled using lists of data items sorted by their local scores. The most efficient algorithm proposed so far for answering to...
199
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ADBIS
2000
Springer
15 years 11 months ago
2000
Springer
The integration of bibliographical data today is considered one of the most important tasks in the area of digital libraries. Various available sources of bibliographical informati...
212
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SIGMOD
2010
ACM
15 years 6 months ago
2010
ACM
An increasing number of applications operate on data obtained from the Web. These applications typically maintain local copies of the web data to avoid network latency in data acc...
143
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NAR
2007
15 years 6 months ago
2007
Pathogenicity islands (PAIs) are genetic elements whose products are essential to the process of disease development. They have been horizontally (laterally) transferred from othe...