107 search results - page 6 / 22 » On the structure of graphs in the Caucal hierarchy |
ESANN
2007
13 years 8 months ago
2007
Abstract. We propose a new algorithm for estimating the causal structure that underlies the observed dependence among n (n ≥ 4) binary variables X1, . . . , Xn. Our inference pri...
DMDW
2001
13 years 8 months ago
2001
Research on logical design of OLAP cubes has tended to assume that the rollup hierarchy in a cube dimension takes the form of a balanced tree. However, experience from industry in...
WWW
2007
ACM
14 years 8 months ago
2007
ACM
Hierarchical models are commonly used to organize a Website's content. A Website's content structure can be represented by a topic hierarchy, a directed tree rooted at a...
SIAMJO
2010
13 years 5 months ago
2010
Inspired by a question of Lov´asz, we introduce a hierarchy of nested semidefinite relaxations of the convex hull of real solutions to an arbitrary polynomial ideal, called theta...
JITECH
2010
13 years 5 months ago
2010
This paper employs the network perspective to study patterns and structures of intraorganizational learning networks. The theoretical background draws from cognitive theories, the...