1390 search results - page 52 / 278 » On the Algebraic Structure of Convergence |
VLDB
1987
ACM
15 years 3 months ago
1987
ACM
A Datalog program can be translated into a system of fixpoint equations of relational algebra; this paper studies how such a system can be solved and optimized for a particular qu...
CCCG
2010
15 years 1 months ago
2010
We analyze degeneracy of lower envelopes of algebraic surfaces. We focus on the cases omitted in the existing complexity analysis of lower envelopes [Halperin and Sharir 1993], an...
ISVC
2010
Springer
14 years 10 months ago
2010
Springer
Algebraic methods for image reconstruction provide good solutions even if only few projections are available. However, they can create noisy images if the number of iterations or t...
133
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TOG
2012
13 years 2 months ago
2012
We present an approach to high-level shape editing that adapts the structure of the shape while maintaining its global characteristics. Our main contribution is a new algebraic mo...
107
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EWDW
1990
15 years 3 months ago
1990
The formal description of the semantics of object-oriented data models is still an open problem. Some characteristic features of object-oriented data models, such as methods and i...