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ICASSP
2011
IEEE
14 years 10 months ago
Power allocation optimization in OFDM-based cognitive radios based on sensing information
Owing to the non-zero probability of the missed detection and false alarm of active primary transmission, a certain degree of performance degradation of the primary user (PU) from...
Xiaoge Huang, Baltasar Beferull-Lozano
ENC
2005
IEEE
16 years 8 days ago
Saving Evaluations in Differential Evolution for Constrained Optimization
Generally, evolutionary algorithms require a large number of evaluations of the objective function in order to obtain a good solution. This paper presents a simple approach to sav...
Efrén Mezura-Montes, Carlos A. Coello Coell...
CIMAGING
2010
195views Hardware» more  CIMAGING 2010»
15 years 8 months ago
SPIRAL out of convexity: sparsity-regularized algorithms for photon-limited imaging
The observations in many applications consist of counts of discrete events, such as photons hitting a detector, which cannot be effectively modeled using an additive bounded or Ga...
Zachary T. Harmany, Roummel F. Marcia, Rebecca Wil...
SIAMSC
2011
162views more  SIAMSC 2011»
15 years 1 months ago
Accelerating the LSTRS Algorithm
In a recent paper [Rojas, Santos, Sorensen: ACM ToMS 34 (2008), Article 11] an efficient method for solving the Large-Scale Trust-Region Subproblem was suggested which is based on ...
Jörg Lampe, Marielba Rojas, Danny C. Sorensen...
ICDE
2008
IEEE
112views Database» more  ICDE 2008»
16 years 8 months ago
XML Index Recommendation with Tight Optimizer Coupling
XML database systems are expected to handle increasingly complex queries over increasingly large and highly structured XML databases. An important problem that needs to be solved ...
Iman Elghandour, Ashraf Aboulnaga, Daniel C. Zilio...