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ICASSP
2008
IEEE
11 years 6 months ago
Transmit codes and receive filters for pulse compression radar systems
Pulse compression radar systems make use of transmit code sequences and receive filters that are specially designed to achieve good range resolution and target detection capabili...
Petre Stoica, Jian Li, Ming Xue
ICASSP
2008
IEEE
11 years 6 months ago
Using dialogue acts to learn better repair strategies for spoken dialogue systems
Repair or error-recovery strategies are an important design issue in Spoken Dialogue Systems (SDSs) - how to conduct the dialogue when there is no progress (e.g. due to repeated A...
Matthew Frampton, Oliver Lemon
ICASSP
2008
IEEE
11 years 6 months ago
Multisensor multiband cross-energy tracking for feature extraction and recognition
In this paper, we present a multisensor multiband energy tracking scheme for robust feature extraction in noisy environments. We introduce a multisensor feature extraction algorit...
Stamatios Lefkimmiatis, Petros Maragos, Athanassio...
ICASSP
2008
IEEE
11 years 6 months ago
Automatic classification of question turns in spontaneous speech using lexical and prosodic evidence
The ability to identify speech acts reliably is desirable in any spoken language system that interacts with humans. Minimally, such a system should be capable of distinguishing be...
Sankaranarayanan Ananthakrishnan, Prasanta Ghosh, ...
ICASSP
2008
IEEE
11 years 6 months ago
An instantaneous vector representation of delta pitch for speaker-change prediction in conversational dialogue systems
As spoken dialogue systems become deployed in increasingly complex domains, they face rising demands on the naturalness of interaction. We focus on system responsiveness, aiming t...
Kornel Laskowski, Jens Edlund, Mattias Heldner
ICASSP
2008
IEEE
11 years 6 months ago
Name-aware speech recognition for interactive question answering
In this work we show how interactivity in a voice-enabled question answering application may improve speech recognition. We allow the user to provide a target named entity before ...
Svetlana Stoyanchev, Gökhan Tür, Dilek Z...
ICASSP
2008
IEEE
11 years 6 months ago
Scalable OFDM design for underwater acoustic communications
Multicarrier modulation in the form of OFDM has been actively pursued for underwater acoustic communication recently. In this paper, we present a desirable property of OFDM that o...
Baosheng Li, Shengli Zhou, Jie Huang, Peter Willet...
ICASSP
2008
IEEE
11 years 6 months ago
Discriminative feature weighting using MCE training for topic identification of spoken audio recordings
In this paper we investigate a discriminative approach to feature weighting for topic identification using minimum classification error (MCE) training. Our approach learns featu...
Timothy J. Hazen, Anna Margolis
ICASSP
2008
IEEE
11 years 6 months ago
Learning with noisy supervision for Spoken Language Understanding
Data-driven Spoken Language Understanding (SLU) systems need semantically annotated data which are expensive, time consuming and prone to human errors. Active learning has been su...
Christian Raymond, G. Riccardfi
ICASSP
2008
IEEE
11 years 6 months ago
Improving Spoken Language Understanding with information retrieval and active learning methods
In the context of deployed spoken dialogue telecom services, we introduce a preprocessor called Fiction into the Spoken Language Understanding (SLU) component. It acts as an inter...
Isabelle Jars, Franck Panaget
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