654 search results - page 23 / 131 » Matrix Graph Grammars |
ACL
2006
13 years 10 months ago
2006
This paper proposes a generic mathematical formalism for the combination of various structures: strings, trees, dags, graphs and products of them. The polarization of the objects ...
ISCOPE
1999
Springer
14 years 1 months ago
1999
Springer
Fill-reducing sparse matrix orderings have been a topic of active research for many years. Although most such algorithms are developed and analyzed within a graph-theoretical frame...
ICASSP
2011
IEEE
13 years 17 days ago
2011
IEEE
In this paper, we present a model for unsupervised pattern discovery using non-negative matrix factorization (NMF) with graph regularization. Though the regularization can be appl...
SDM
2010
SIAM
13 years 7 months ago
2010
SIAM
Collaborative filtering is an important topic in data mining and has been widely used in recommendation system. In this paper, we proposed a unified model for collaborative fil...
JCT
2008
13 years 8 months ago
2008
We exhibit a a counterexample to a conjecture of Thomassen stating that the number of distinct 3-colorings of every graph whose 3color matrix has full column rank is superpolynomi...