Sciweavers

ICASSP
2008
IEEE
14 years 6 months ago
Approximate lower bounds for rate-distortion in compressive sensing systems
We attempt to quantify the possible gains that can be achieved by examining a rate-distortion competition between a conventional and a compressive sampling solution to data rate r...
Bernard Mulgrew, Michael E. Davies
ICASSP
2008
IEEE
14 years 6 months ago
Live search for mobile: Web services by voice on the cellphone
Alex Acero, Neal Bernstein, Rob Chambers, Yun-Chen...
ICASSP
2008
IEEE
14 years 6 months ago
Discriminative learning for optimizing detection performance in spoken language recognition
We propose novel approaches for optimizing the detection performance in spoken language recognition. Two objective functions are designed to directly relate model parameters to tw...
Donglai Zhu, Haizhou Li, Bin Ma, Chin-Hui Lee
ICASSP
2008
IEEE
14 years 6 months ago
Some properties of an empirical mode type signal decomposition algorithm
The empirical mode decomposition (EMD) has seen widespread use for analysis of nonlinear and nonstationary time-series. Despite some practical success, it lacks a firm theoretica...
Stephen D. Hawley, Les E. Atlas, Howard J. Chizeck
ICASSP
2008
IEEE
14 years 6 months ago
Efficient language model look-ahead probabilities generation using lower order LM look-ahead information
In this paper, an efficient method for language model lookahead probability generation is presented. Traditional methods generate language model look-ahead (LMLA) probabilities fo...
Langzhou Chen, K. K. Chin
ICASSP
2008
IEEE
14 years 6 months ago
Localized spectro-temporal cepstral analysis of speech
Drawing on recent progress in auditory neuroscience, we present a novel speech feature analysis technique based on localized spectrotemporal cepstral analysis of speech. We procee...
Jake V. Bouvrie, Tony Ezzat, Tomaso Poggio
ICASSP
2008
IEEE
14 years 6 months ago
Adaptive short-time analysis-synthesis for speech enhancement
In this paper we present a new adaptive short-time Fourier analysissynthesis scheme and demonstrate its efficacy in speech enhancement. While a number of adaptive analyses have p...
Daniel Rudoy, Prabahan Basu, Thomas F. Quatieri, B...
ICASSP
2008
IEEE
14 years 6 months ago
Parsing-based objective functions for speech recognition in translation applications
This paper looks at a parsing-based alternative to word error rate (WER) for optimizing recognition, SParseval, hypothesizing that it may be a better objective for applications su...
Dustin Hillard, Mei-Yuh Hwang, Mary P. Harper, Mar...
ICASSP
2008
IEEE
14 years 6 months ago
Exploiting temporal change of pitch in formant estimation
This paper considers the problem of obtaining an accurate spectral representation of speech formant structure when the voicing source exhibits a high fundamental frequency. Our wo...
Tao T. Wang, Thomas F. Quatieri
ICASSP
2008
IEEE
14 years 6 months ago
BIC-based audio segmentation by divide-and-conquer
Audio segmentation has received increasing attention in recent years for its potential applications in automatic indexing and transcription of audio data. Among existing audio seg...
Shih-Sian Cheng, Hsin-Min Wang, Hsin-Chia Fu