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ICASSP
2010
IEEE
13 years 9 months ago
Evaluation of random-projection-based feature combination on speech recognition
Random projection has been suggested as a means of dimensionality reduction, where the original data are projected onto a subspace using a random matrix. It represents a computati...
Tetsuya Takiguchi, Jeff Bilmes, Mariko Yoshii, Yas...
ICASSP
2010
IEEE
13 years 9 months ago
Large margin estimation of n-gram language models for speech recognition via linear programming
We present a novel discriminative training algorithm for n-gram language models for use in large vocabulary continuous speech recognition. The algorithm uses large margin estimati...
Vladimir Magdin, Hui Jiang
TCOM
2008
66views more  TCOM 2008»
13 years 8 months ago
Lattice codes for amplified direct-detection optical systems
Theories of shaping for lattice codes have been developed for systems (optical or non-optical) using coherent detection with additive white Gaussian noise (AWGN) and for direct-det...
Wei Mao, Joseph M. Kahn
TSP
2008
124views more  TSP 2008»
13 years 8 months ago
Dictionary Preconditioning for Greedy Algorithms
This article introduces the concept of sensing dictionaries. It presents an alteration of greedy algorithms like thresholding or (Orthogonal) Matching Pursuit which improves their...
Karin Schnass, Pierre Vandergheynst
ICASSP
2011
IEEE
13 years 16 days ago
Dynamic spectrum management in DSL with asynchronous crosstalk
Dynamic spectrum management (DSM) aims to optimally allocate per-user transmit spectra so that the effect of multiuser interference (crosstalk) is minimized and the capabilities o...
Rodrigo B. Moraes, Paschalis Tsiaflakis, Marc Moon...