1805 search results - page 43 / 361 » A Theory of Closure Operators |
150
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PODS
1999
ACM
15 years 8 months ago
1999
ACM
We investigate the problem of how to extend constraint query languages with aggregate operators. We deal with standard relational aggregation, and also with aggregates speci c to ...
138
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COLING
1996
15 years 5 months ago
1996
This paper describes an operational semantics for DATR theories. The semantics is presented as a set of inference rules that axiomatises the evaluation relationship for DATR expre...
217
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VLDB
2007
ACM
16 years 4 months ago
2007
ACM
We present an overview of a tutorial on model management--an approach to solving data integration problems, such as data warehousing, e-commerce, object-to-relational mapping, sch...
110
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BIRTHDAY
2006
Springer
15 years 7 months ago
2006
Springer
Following M. Krachounov ([5]), max and min operations with fuzzy sets are considered instead of Lukasiewicz ones ([6], [7], [8], [9]). Her the domain F of a probability m : F [0, ...
155
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ICDCS
2011
IEEE
14 years 3 months ago
2011
IEEE
—Routing is a critical operation in networks. In the context of data and sensor networks, routing strategies such as shortest-path, multi-path and potential-based (“all-path”...