108 search results - page 1 / 22 » Space Hierarchy Results for Randomized and Other Semantic Mo... |
ECCC
2007
13 years 4 months ago
2007
We prove space hierarchy and separation results for randomized and other semantic models of computation with advice where a machine is only required to behave appropriately when g...
SMC
2010
IEEE
13 years 3 months ago
2010
IEEE
—This study examines the ability of nonnegative matrix factorization (NMF) as a method for constructing semantic spaces, in which the meaning of each word is represented by a hig...
CVPR
2008
IEEE
14 years 6 months ago
2008
IEEE
An important problem in image labeling concerns learning with images labeled at varying levels of specificity. We propose an approach that can incorporate images with labels drawn...
COMPSAC
2002
IEEE
13 years 9 months ago
2002
IEEE
Generalized Temporal Role Based Access Control (GTRBAC) model that captures an exhaustive set of temporal constraint needs for access control has recently been proposed. GTRBAC’...
CIKM
2008
Springer
13 years 6 months ago
2008
Springer
Statistical topic models provide a general data-driven framework for automated discovery of high-level knowledge from large collections of text documents. While topic models can p...