3836 search results - page 103 / 768 » Semantics of Database Transformations |
118
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PODS
2007
ACM
16 years 2 months ago
2007
ACM
We show that relational algebra calculations for incomplete databases, probabilistic databases, bag semantics and whyprovenance are particular cases of the same general algorithms...
147
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ADC
2006
Springer
15 years 8 months ago
2006
Springer
Query answering over OWLs and RDFs on the Semantic Web is, in general, a deductive process. To this end, OWL, a family of web ontology languages based on description logic, has be...
140
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ACL
1989
15 years 3 months ago
1989
Comparative expressions (CEs) such as "bigger than" and "more oranges than" are highly ambiguous, and their meaning is context dependent. Thus, they pose probl...
105
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GEOS
2009
Springer
15 years 7 months ago
2009
Springer
What is the intended interpretation of a geospatial database in terms of reproducible experiences? How should places on a digital globe be interpreted on the earth surface? And how...
105
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DGO
2003
15 years 3 months ago
2003
State-of-art image retrieval techniques have been developed to support high-level (semantics) querying and browsing of images. For certain user queries, it is also very important ...