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<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.0 20120330//EN" "JATS-journalpublishing1.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article"><front><journal-meta><journal-id journal-id-type="publisher-id">INFORMATICA</journal-id><journal-title-group><journal-title>Informatica</journal-title></journal-title-group><issn pub-type="epub">0868-4952</issn><issn pub-type="ppub">0868-4952</issn><publisher><publisher-name>VU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">inf24306</article-id><article-id pub-id-type="doi">10.15388/Informatica.2013.404</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research article</subject></subj-group></article-categories><title-group><article-title>Metrics Based Quality Estimation of Speech Recognition Features</article-title></title-group><contrib-group><contrib contrib-type="Author"><name><surname>Lileikytė</surname><given-names>Rasa</given-names></name><email xlink:href="mailto:rasalileikyte@gmail.com">rasalileikyte@gmail.com</email><xref ref-type="aff" rid="j_INFORMATICA_aff_000"/><xref ref-type="corresp" rid="fn1">∗</xref></contrib><contrib contrib-type="Author"><name><surname>Telksnys</surname><given-names>Laimutis</given-names></name><email xlink:href="mailto:laimutis.telksnys@mii.vu.lt">laimutis.telksnys@mii.vu.lt</email><xref ref-type="aff" rid="j_INFORMATICA_aff_000"/></contrib><aff id="j_INFORMATICA_aff_000">Vilnius University, Institute of Mathematics and Informatics, Goštauto 12, LT-01108, Vilnius, Lithuania</aff></contrib-group><author-notes><corresp id="fn1"><label>∗</label>Corresponding author.</corresp></author-notes><pub-date pub-type="epub"><day>01</day><month>01</month><year>2013</year></pub-date><volume>24</volume><issue>3</issue><fpage>435</fpage><lpage>446</lpage><history><date date-type="received"><day>01</day><month>09</month><year>2012</year></date><date date-type="accepted"><day>01</day><month>06</month><year>2013</year></date></history><abstract><p>The performance of an automatic speech recognition system heavily depends on the used feature set. Quality of speech recognition features is estimated by classification error, but then the recognition experiments must be performed, including both front-end and back-end implementations. We propose a method for features quality estimation that does not require recognition experiments and accelerate automatic speech recognition system development. The key component of our method is usage of metrics right after front-end features computation. The experimental results show that our method is suitable for recognition systems with back-end Euclidean space classifiers.</p></abstract><kwd-group><label>Keywords</label><kwd>speech recognition</kwd><kwd>quality of speech recognition features</kwd><kwd>classes separability</kwd></kwd-group></article-meta></front></article>