About: Initialization of Adaptation by Sufficient Statistics Using Phonetic Tree

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this work we deal with the problem of small amount of data when estimating a feature transformation for the speaker adaptation of an acoustic model. Our goal is to compensate for the lack of adaptation data by a proper initialization of transformation matrices. Methods used in such situations are described, they are based on collecting additional accumulated statistics from nearest speakers. The proposed initialization approach is based on accumulated statistics too, but it incorporates also phonetic information when selecting the ?nearest? statistics. Initialization methods compensating for the absence of actual speaker?s data are tested on telephone recordings with different amounts of adaptation data. In worst situation with extremely small amount of adaptation data relative improvement of 5% is obtained. In this work we deal with the problem of small amount of data when estimating a feature transformation for the speaker adaptation of an acoustic model. Our goal is to compensate for the lack of adaptation data by a proper initialization of transformation matrices. Methods used in such situations are described, they are based on collecting additional accumulated statistics from nearest speakers. The proposed initialization approach is based on accumulated statistics too, but it incorporates also phonetic information when selecting the ?nearest? statistics. Initialization methods compensating for the absence of actual speaker?s data are tested on telephone recordings with different amounts of adaptation data. In worst situation with extremely small amount of adaptation data relative improvement of 5% is obtained. (en)
Title	Initialization of Adaptation by Sufficient Statistics Using Phonetic Tree Initialization of Adaptation by Sufficient Statistics Using Phonetic Tree (en)
skos:prefLabel	Initialization of Adaptation by Sufficient Statistics Using Phonetic Tree Initialization of Adaptation by Sufficient Statistics Using Phonetic Tree (en)
skos:notation	RIV/49777513:23520/12:43915992!RIV13-MK0-23520___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(DF12P01OVV022)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Zajíc, Zbyněk Müller, Luděk Machlica, Lukáš
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Západočeská univerzita v Plzni / Fakulta aplikovaných věd
http://linked.open...dnocenehoVysledku	141875
http://linked.open...ai/riv/idVysledku	RIV/49777513:23520/12:43915992
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	speech recognition, adaptation, initialization, phonetic tree (en)
http://linked.open.../riv/klicoveSlovo	initialization adaptation speech recognition phonetic tree
http://linked.open...ontrolniKodProRIV	[93603CFA8EDF]
http://linked.open...v/mistoKonaniAkce	Beijing
http://linked.open...i/riv/mistoVydani	Beijing
http://linked.open...i/riv/nazevZdroje	Proceedings 2012 IEEE 11th International Conference on Signal Processing
http://linked.open...in/vavai/riv/obor	JD
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	ASR- and MT-based Access to a Large Archive of Cultural Heritage (AMALACH)
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Machlica, Lukáš Zajíc, Zbyněk Müller, Luděk
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-10-21 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	IEEE Press
https://schema.org/isbn	978-1-4673-2194-5
http://localhost/t...ganizacniJednotka	23520

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