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ICASSP
2008
IEEE
11 years 6 months ago
Bayesian update of dialogue state for robust dialogue systems
This paper presents a new framework for accumulating beliefs in spoken dialogue systems. The technique is based on updating a Bayesian Network that represents the underlying state...
Blaise Thomson, Jost Schatzmann, Steve Young
ICASSP
2008
IEEE
11 years 6 months ago
Signal approximation using the bilinear transform
This paper explores the approximation properties of a unique basis expansion, which realizes a bilinear frequency warping between a continuous-time signal and its discrete-time re...
Archana Venkataraman, Alan V. Oppenheim
ICASSP
2008
IEEE
11 years 6 months ago
Impact of automatic sentence segmentation on meeting summarization
This paper investigates the impact of automatic sentence segmentation on speech summarization using the ICSI meeting corpus. We use a hidden Markov model (HMM) for sentence segmen...
Yang Liu, Shasha Xie
ICASSP
2008
IEEE
11 years 6 months ago
Gradient steepness metrics using extended Baum-Welch transformations for universal pattern recognition tasks
In many pattern recognition tasks, given some input data and a family of models, the “best” model is defined as the one which maximizes the likelihood of the data given the m...
Tara N. Sainath, Dimitri Kanevsky, Bhuvana Ramabha...
ICASSP
2008
IEEE
11 years 6 months ago
Complex-valued sparse representation based on smoothed l0 norm
G. Hosein Mohimani, Massoud Babaie-Zadeh, Christia...
ICASSP
2008
IEEE
11 years 6 months ago
Localization of multiple speakers based on a two step acoustic map analysis
An interface for distant-talking control of home devices requires the possibility of identifying the positions of multiple users. Acoustic maps, based either on Global Coherence F...
Alessio Brutti, Maurizio Omologo, Piergiorgio Svai...
ICASSP
2008
IEEE
11 years 6 months ago
Computationally efficient equalization of room impulse responses robust to system estimation errors
Equalization techniques for room impulse responses (RIRs) are important in acoustic signal processing applications such as speech dereverberation. In practice, only approximate es...
Wancheng Zhang, Nikolay D. Gaubitch, Patrick A. Na...
ICASSP
2008
IEEE
11 years 6 months ago
Exploiting dialogue act tagging and prosodic information for action item identification
An important task for multiparty meeting understanding is extracting action items. Action items are a set of tasks that are agreed on by the participants for execution after the m...
Fan Yang, Gökhan Tür, Elizabeth Shriberg
ICASSP
2008
IEEE
11 years 6 months ago
An improved mu-law proportionate NLMS algorithm
In this paper, we propose an algorithm to improve the performance of the mu-law PNLMS algorithm (MPNLMS) for nonsparse impulse responses. Although the existing MPNLMS algorithm wa...
Ligang Liu, Masahiro Fukumoto, Sachio Saiki
ICASSP
2008
IEEE
11 years 6 months ago
Reproducing kernel Hilbert spaces for spike train analysis
This paper introduces a generalized cross-correlation (GCC) measure for spike train analysis derived from reproducing kernel Hilbert spaces (RKHS) theory. An estimator for GCC is ...
António R. C. Paiva, Il Park, Jose C. Princ...
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