11051 search results - page 176 / 2211 » An Investigation of Generalized Cases |
120
click to vote
APPROX
2009
Springer
15 years 7 months ago
2009
Springer
Submodular-function maximization is a central problem in combinatorial optimization, generalizing many important NP-hard problems including Max Cut in digraphs, graphs and hypergr...
95
Voted
GLOBECOM
2008
IEEE
15 years 7 months ago
2008
IEEE
Abstract—This paper proposes a simple non-coherent amplifyand-forward receiver for the relay channel and evaluates its diversity performance for Rayleigh fading channels. We use ...
137
Voted
ICC
2008
IEEE
15 years 7 months ago
2008
IEEE
— Recently a number of transmission schemes have been introduced to achieve sum capacity for multiuser multiinput multi-output (MIMO) broadcast channels (BC). A block diagonaliza...
113
click to vote
ICRA
2008
IEEE
15 years 7 months ago
2008
IEEE
— What is the shortest or fastest path a mobile robot can follow between two configurations in the unobstructed plane? The answer to this fundamental question is only known anal...
100
click to vote
APWEB
2004
Springer
15 years 6 months ago
2004
Springer
Abstract. Integrity constraints play a fundamental role in defining semantics in both conventional databases and in XML documents. In this paper we generalize previous approaches ...