4237 search results - page 272 / 848 » A Data Model for XML Databases |
114
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DASFAA
2007
IEEE
15 years 11 months ago
2007
IEEE
Abstract. This demonstration presents OntoDB, a prototype that allows to store explicitly in the database not only the data, but also the conceptual model defining the structure o...
141
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VLDB
1994
ACM
15 years 8 months ago
1994
ACM
One important step in integrating heterogeneous databases is matching equivalent attributes: Determining which fields in two databasesrefer to the samedata. The meaning of informa...
125
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ISAS
2004
Springer
15 years 10 months ago
2004
Springer
This paper describes the architectures that can be used to build highly available database management systems. We describe these architectures along two dimensions – process redu...
169
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CACM
1998
15 years 4 months ago
1998
abstraction for modeling these problems is to view the Web as a collection of (usually small and heterogeneous) databases, and to view programs that extract and process Web data au...
157
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VLDB
2002
ACM
15 years 4 months ago
2002
ACM
Accurate prediction of operator execution time is a prerequisite for database query optimization. Although extensively studied for conventional disk-based DBMSs, cost modeling in ...