4397 search results - page 582 / 880 » Relational Algebra Operations |
167
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VL
1998
IEEE
15 years 8 months ago
1998
IEEE
This paper presents VIQING, an environment for expressing queries via direct manipulation of data visualizations. VIQING provides a simple graphical interface for connecting visua...
128
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WCRE
1998
IEEE
15 years 8 months ago
1998
IEEE
Types are a good starting point for various software reengineering tasks. Unfortunately, programs requiring reengineering most desperately are written in languages without an adeq...
157
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ICCS
1998
Springer
15 years 8 months ago
1998
Springer
Matching of concepts with variables (concept patterns) is a relatively new operation that has been introduced in the context of concept description languages (description logics),...
125
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COOPIS
1997
IEEE
15 years 8 months ago
1997
IEEE
This paper describes how query formulation can be made simple and less complicated by using ontologies. It takes a brief look at several advantages of using ontologies in a distri...
130
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VLDB
1998
ACM
15 years 8 months ago
1998
ACM
Currently the key problems of query optimization are extensibility imposed by object-relational technology, as well as query complexity caused by forthcoming applications, such as...