8768 search results - page 266 / 1754 » Generalizing the notion of support |
175
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CP
2005
Springer
16 years 28 days ago
2005
Springer
In the context of previous work on redundant modeling, permutation problems and matrix modeling, we introduce the notion of partial redundant modeling and categorical channeling co...
222
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ICALP
2005
Springer
16 years 28 days ago
2005
Springer
We introduce the notion of hierarchical group signatures. This is a proper generalization of group signatures, which allows multiple group managers organized in a tree with the si...
194
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ICDT
2001
ACM
15 years 12 months ago
2001
ACM
XML data is often used (validated, stored, queried, etc) with respect to di erent types. Understanding the relationship between these types can provide important information for ma...
199
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LICS
2000
IEEE
15 years 11 months ago
2000
IEEE
We give an axiomatic treatment of fixed-point operators in categories. A notion of iteration operator is defined, embodying the equational properties of iteration theories. We p...
176
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STOC
1998
ACM
15 years 11 months ago
1998
ACM
We introduce and study a modi ed notion of planarity, in which two regions of a map are considered adjacent when they share any point of their boundaries not an edge, as standard...