50 search results - page 4 / 10 » Lattices on simplicial partitions |
COMBINATORICS
2004
13 years 8 months ago
2004
Abstract. We use the theory of hyperplane arrangements to construct natural bases for the homology of partition lattices of types A, B and D. This extends and explains the "sp...
SOFSEM
1998
Springer
14 years 1 months ago
1998
Springer
Abstract. Formal methods based on the mathematical theory of partially ordered sets (i.e., posets) have been used in the database field for the modelling of spatial data since many...
ICML
2005
IEEE
14 years 9 months ago
2005
IEEE
This paper views clusterings as elements of a lattice. Distances between clusterings are analyzed in their relationship to the lattice. From this vantage point, we first give an a...
COMBINATORICS
2006
13 years 8 months ago
2006
We show that the Grothendieck bialgebra of the semi-tower of partition lattice algebras is isomorphic to the graded dual of the bialgebra of symmetric functions in noncommutative ...
CLA
2007
13 years 10 months ago
2007
The generalization of policies in reinforcement learning is a main issue, both from the theoretical model point of view and for their applicability. However, generalizing from a se...