1411 search results - page 89 / 283 » Building a database on S3 |
FOIS
2010
15 years 14 days ago
2010
Abstract. The paper presents preliminary results in the area of ontological engineering for historical research. Historical information systems are still in the initial stage of de...
ESWA
2008
14 years 11 months ago
2008
This paper examines and proposes the automatic generation of concept hierarchies using WordNet. Existing researches have mostly explored the utilization of concept hierarchies, bu...
107
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DEXA
2011
Springer
13 years 10 months ago
2011
Springer
In this article we present RoSeS (Really Open Simple and Efficient Syndication), a generic framework for content-based RSS feed querying and aggregation. RoSeS is based on a data-...
182
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ICDE
2001
IEEE
16 years 11 days ago
2001
IEEE
We consider the problems of computing aggregation queries in temporal databases, and of maintaining materialized temporal aggregate views efficiently. The latter problem is partic...
166
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ICDE
1997
IEEE
16 years 10 days ago
1997
IEEE
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...