4180 search results - page 307 / 836 » A Query Language for XML |
139
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WWW
2007
ACM
16 years 6 months ago
2007
ACM
It is widely believed that some queries submitted to search engines are by nature ambiguous (e.g., java, apple). However, few studies have investigated the questions of "how ...
136
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SIGMOD
2002
ACM
16 years 6 months ago
2002
ACM
Relational query optimizers have traditionally relied upon table cardinalities when estimating the cost of the query plans they consider. While this approach has been and continue...
159
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BNCOD
2003
15 years 7 months ago
2003
In this paper we describe a query paradigm based on ontologies, aggregate table-driven querying and expansion of QBE. It has two novel features: visually specifying aggregate table...
150
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DS
1997
15 years 7 months ago
1997
The ODMG proposal has helped to focus the work on object-oriented databases (OODBs) onto a common object model and query language. Nevertheless there are several shortcomings of t...
168
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VDB
2000
15 years 7 months ago
2000
In this paper we propose a visual interface for the specification of predicates to be used in queries on spatio-temporal databases. The approach is based on a visual specification ...