DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bae, UM | ko |
dc.contributor.author | Park, HM | ko |
dc.contributor.author | Lee, Soo-Young | ko |
dc.date.accessioned | 2009-09-03T05:27:03Z | - |
dc.date.available | 2009-09-03T05:27:03Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2002-12 | - |
dc.identifier.citation | NEUROCOMPUTING, v.49, pp.315 - 327 | - |
dc.identifier.issn | 0925-2312 | - |
dc.identifier.uri | http://hdl.handle.net/10203/10963 | - |
dc.description.abstract | For robust speech recognition in real-world noisy environments, we present an algorithm to incorporate blind signal separation based on independent component analysis (ICA) and top-down attention processing. While ICA-based unmixing networks learn the inverse of mixing characteristics in frequency domain, their performance is limited by mismatches between the real-world mixing characteristics and assumptions of the ICA algorithm. The top-down process from a multiplayer Perceptron (MLP) classifier provides additional information on the speech signal, and fine-tunes the networks to compensate for the mismatches. For noisy speech signals recorded in a real office environment, the developed algorithm demonstrated great improvements on recognition performance. (C) 2002 Published by Elsevier Science B.V. | - |
dc.description.sponsorship | This research was supported by the Brain Science and Engineering Research Program from Korean Ministry of Science and Technology. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | NEURAL NETWORKS | - |
dc.subject | ALGORITHM | - |
dc.title | Top-down attention to complement independent component analysis for blind signal separation | - |
dc.type | Article | - |
dc.identifier.wosid | 000180379300021 | - |
dc.identifier.scopusid | 2-s2.0-0036947934 | - |
dc.type.rims | ART | - |
dc.citation.volume | 49 | - |
dc.citation.beginningpage | 315 | - |
dc.citation.endingpage | 327 | - |
dc.citation.publicationname | NEUROCOMPUTING | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Lee, Soo-Young | - |
dc.contributor.nonIdAuthor | Bae, UM | - |
dc.contributor.nonIdAuthor | Park, HM | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | independent component analysis | - |
dc.subject.keywordAuthor | blind signal separation | - |
dc.subject.keywordAuthor | non-ideal mixing conditions | - |
dc.subject.keywordAuthor | selective attention | - |
dc.subject.keywordAuthor | robust speech recognition | - |
dc.subject.keywordPlus | NEURAL NETWORKS | - |
dc.subject.keywordPlus | ALGORITHM | - |
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