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ICASSP
2009
IEEE
16 years 1 months ago
Factor graph based design of an OFDM-IDMA receiver performing joint data detection, channel estimation, and channel length selec
We present a factor graph based design of a receiver for pilotassisted OFDM-IDMA systems transmitting over frequency-selective channels. The receiver performs joint iterative mult...
Clemens Novak, Gerald Matz, Franz Hlawatsch
ICASSP
2009
IEEE
16 years 1 months ago
Multi-layer ratio Semi-Definite Classifiers
We develop a novel extension to the Ratio Semi-definite Classifier, a discriminative model formulated as a ratio of semi-definite polynomials. By adding a hidden layer to the m...
Jonathan Malkin, Jeff Bilmes
ICASSP
2008
IEEE
16 years 24 days ago
A factor graph approach to joint iterative data detection and channel estimation in pilot-assisted IDMA transmissions
We consider a pilot-assisted interleave-division multiple access (IDMA) system transmitting over block-fading channels. We describe this system in terms of a factor graph and use ...
Clemens Novak, Gerald Matz, Franz Hlawatsch
EUROGP
2004
Springer
145views Optimization» more  EUROGP 2004»
15 years 11 months ago
Toward an Alternative Comparison between Different Genetic Programming Systems
In this paper, we use multi-objective techniques to compare different genetic programming systems, permitting our comparison to concentrate on the effect of representation and sepa...
Nguyen Xuan Hoai, Robert I. McKay, Daryl Essam, Hu...
ESA
1995
Springer
126views Algorithms» more  ESA 1995»
15 years 10 months ago
The Online Transportation Problem
We present a poly-log-competitive deterministic online algorithm for the online transportation problem on hierarchically separated trees when the online algorithm has one extra se...
Bala Kalyanasundaram, Kirk Pruhs