1933 search results - page 54 / 387 » Improved Algorithms for the Feedback Vertex Set Problems |
DAM
2008
13 years 8 months ago
2008
A transitive orientation of an undirected graph is an assignment of directions to its edges so that these directed edges represent a transitive relation between the vertices of th...
ECIR
2003
Springer
13 years 10 months ago
2003
Springer
Abstract. Relevance feedback (RF) has been an effective query modification approach to improving the performance of information retrieval (IR) by interactively asking a user whet...
LATIN
2004
Springer
14 years 2 months ago
2004
Springer
For several graph-theoretic parameters such as vertex cover and dominating set, it is known that if their sizes are bounded by k then the treewidth of the graph is bounded by some ...
TCOM
2008
13 years 8 months ago
2008
Abstract--This paper addresses the problem of joint optimization of transmit beamforming and space-frequency (SF) coding for MIMO-OFDM systems with spatial correlation feedback in ...
PRL
2008
13 years 8 months ago
2008
In recent years, relevance feedback has been studied extensively as a way to improve performance of content-based image retrieval (CBIR). Since users are usually unwilling to prov...