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SIAMSC
2008
191views more  SIAMSC 2008»
13 years 9 months ago
ORBIT: Optimization by Radial Basis Function Interpolation in Trust-Regions
Abstract. We present a new derivative-free algorithm, ORBIT, for unconstrained local optimization of computationally expensive functions. A trust-region framework using interpolati...
Stefan M. Wild, Rommel G. Regis, Christine A. Shoe...
INFOCOM
2010
IEEE
13 years 7 months ago
Optimal Probing for Unicast Network Delay Tomography
—Network tomography has been proposed to ascertain internal network performances from end-to-end measurements. In this work, we present priority probing, an optimal probing schem...
Yu Gu, Guofei Jiang, Vishal Singh, Yueping Zhang
FCCM
2011
IEEE
311views VLSI» more  FCCM 2011»
13 years 24 days ago
String Matching in Hardware Using the FM-Index
—String matching is a ubiquitous problem that arises in a wide range of applications in computing, e.g., packet routing, intrusion detection, web querying, and genome analysis. D...
Edward Fernandez, Walid Najjar, Stefano Lonardi
ICASSP
2011
IEEE
13 years 24 days ago
Asymptotically MMSE-optimum pilot design for comb-type OFDM channel estimation in high-mobility scenarios
Under high mobility, the orthogonality between sub-carriers in an OFDM symbol is destroyed resulting in severe intercarrier interference (ICI). We present a novel algorithm to est...
K. M. Zahidul Islam, Tareq Y. Al-Naffouri, Naofal ...
ICASSP
2011
IEEE
13 years 23 days ago
A Lagrangian dual relaxation approach to ML MIMO detection: Reinterpreting regularized lattice decoding
This paper describes a new approximate maximum-likelihood (ML) MIMO detection approach by studying a Lagrangian dual relaxation (LDR) of ML. Unlike many existing relaxed ML method...
Jiaxian Pan, Wing-Kin Ma