239 search results - page 39 / 48 » Document clustering using nonnegative matrix factorization |
ICML
2007
IEEE
14 years 9 months ago
2007
IEEE
High dimensionality of POMDP's belief state space is one major cause that makes the underlying optimal policy computation intractable. Belief compression refers to the method...
COMPUTING
2007
13 years 8 months ago
2007
Hierarchical matrices (H-matrices) approximate matrices in a data-sparse way, and the approximate arithmetic for H-matrices is almost optimal. In this paper we present an algebrai...
SIGIR
2002
ACM
13 years 8 months ago
2002
ACM
mes, abstracts and year of publication of all 853 papers published.1 We then applied Porter stemming and stopword removal to this text, represented terms from the elds with twice t...
CHI
1998
ACM
14 years 27 days ago
1998
ACM
Designers and researchers of human-computer interaction need tools that permit the rapid exploration and management of hypotheses about complex interactions of designs, task condi...
WWW
2005
ACM
14 years 2 months ago
2005
ACM
In recent years, many algorithms for the Web have been developed that work with information units distinct from individual web pages. These include segments of web pages or aggreg...