297 search results - page 27 / 60 » Geometric and algebraic combinatorics |
IJAR
2010
13 years 7 months ago
2010
We recall the basic idea of an algebraic approach to learning Bayesian network (BN) structures, namely to represent every BN structure by a certain (uniquely determined) vector, c...
ICA
2007
Springer
14 years 2 months ago
2007
Springer
The discussion in this paper revolves around the notion of separation problems. The latter can be thought of as a unifying concept which includes a variety of important problems in...
SODA
2003
ACM
13 years 9 months ago
2003
ACM
This work examines algebraic techniques for comparing quadratic algebraic numbers, thus yielding methods for deciding key predicates in various geometric constructions. Our motiva...
COSIT
2009
Springer
14 years 3 months ago
2009
Springer
Abstract. The modeling of concepts from a cognitive perspective is important for designing spatial information systems that interoperate with human users. Concept representations t...
ACS
2007
13 years 8 months ago
2007
Directed Algebraic Topology is a recent field, deeply linked with Category Theory. A ‘directed space’ has directed homotopies (generally non reversible), directed homology gro...