3049 search results - page 487 / 610 » On the Convergence of Bound Optimization Algorithms |
ICASSP
2011
IEEE
13 years 20 days ago
2011
IEEE
In this paper, a new adaptive beamforming algorithm with joint robustness against covariance matrix uncertainty as well as steering vector mismatch is proposed. First, the theoret...
ESA
2011
Springer
12 years 8 months ago
2011
Springer
We study and characterize social-aware forwarding protocols in opportunistic networks and we derive bounds on the expected message delivery time for two different routing protocol...
INFOCOM
2012
IEEE
11 years 11 months ago
2012
IEEE
—This paper addresses the problem of sparse recovery with graph constraints in the sense that we can take additive measurements over nodes only if they induce a connected subgrap...
SODA
2012
ACM
11 years 11 months ago
2012
ACM
We consider the dictionary problem in external memory and improve the update time of the wellknown buffer tree by roughly a logarithmic factor. For any λ ≥ max{lg lg n, logM/B(...
IPPS
2009
IEEE
14 years 3 months ago
2009
IEEE
—We consider a scheduling problem in which a bounded number of jobs can be processed simultaneously by a single machine. The input is a set of n jobs J = {J1, . . . , Jn}. Each j...