A Level-Building Top-Down Parsing Algorithm for Context-Free Grammars in Continuous Speech Recognition
Identifieur interne : 000274 ( Hal/Corpus ); précédent : 000273; suivant : 000275A Level-Building Top-Down Parsing Algorithm for Context-Free Grammars in Continuous Speech Recognition
Auteurs : François Charpillet ; Joseph Di MartinoSource :
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Abstract
We present in this paper a dynamic programming parsing algorithm in the framework of continuous speech recognition. The language of the applications we want to deal with, is described using a context-free grammar given in Greibach normal form. The parsing algorithm follows the level-building technique and finds the p sentences matching the speech signal with the best scores. Our approach is different from the existing ones, in the sense that it is suboptimal but with a lower order of complexity. By suboptimal we mean that a syntactically correct sentence with a score belonging to the p best ones can be missed by our algorithm. This leads us to discuss the trade-off between quality of results on the one hand and the complexity of the algorithm on the other hand. As a conclusion, we will see that in practice, our approach yields results of comparable quality in spite of their slight theoritical corruption.
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The language of the applications we want to deal with, is described using a context-free grammar given in Greibach normal form. The parsing algorithm follows the level-building technique and finds the p sentences matching the speech signal with the best scores. Our approach is different from the existing ones, in the sense that it is suboptimal but with a lower order of complexity. By suboptimal we mean that a syntactically correct sentence with a score belonging to the p best ones can be missed by our algorithm. This leads us to discuss the trade-off between quality of results on the one hand and the complexity of the algorithm on the other hand. As a conclusion, we will see that in practice, our approach yields results of comparable quality in spite of their slight theoritical corruption.</div></front></TEI><hal api="V3"><titleStmt><title xml:lang="en">A Level-Building Top-Down Parsing Algorithm for Context-Free Grammars in Continuous Speech Recognition</title><author role="aut"><persName><forename type="first">François</forename><surname>Charpillet</surname></persName><email>francois.charpillet@loria.fr</email><idno type="idhal">francois-charpillet</idno><idno type="halauthor">58657</idno><affiliation ref="#struct-2359"></affiliation></author><author role="aut"><persName><forename type="first">Joseph</forename><surname>Di Martino</surname></persName><email>jdm@loria.fr</email><idno type="halauthor">861252</idno><orgName ref="#struct-413289"></orgName><affiliation ref="#struct-2359"></affiliation></author><editor role="depositor"><persName><forename>Joseph</forename><surname>Di Martino</surname></persName><email>jdm@loria.fr</email></editor></titleStmt><editionStmt><edition n="v1" type="current"><date type="whenSubmitted">2013-06-18 10:19:58</date><date type="whenModified">2016-05-18 08:57:38</date><date type="whenReleased">2013-06-18 10:19:58</date><date type="whenProduced">1993-09-22</date></edition><respStmt><resp>contributor</resp><name key="184441"><persName><forename>Joseph</forename><surname>Di Martino</surname></persName><email>jdm@loria.fr</email></name></respStmt></editionStmt><publicationStmt><distributor>CCSD</distributor><idno type="halId">hal-00835135</idno><idno type="halUri">https://hal.inria.fr/hal-00835135</idno><idno type="halBibtex">charpillet:hal-00835135</idno><idno type="halRefHtml">EUROSPEECH - Third European Conference on Speech Communication and Technology - 1993, Sep 1993, Berlin, Germany. pp.1947-1949, 1993</idno><idno type="halRef">EUROSPEECH - Third European Conference on Speech Communication and Technology - 1993, Sep 1993, Berlin, Germany. pp.1947-1949, 1993</idno></publicationStmt><seriesStmt><idno type="stamp" n="CNRS">CNRS - Centre national de la recherche scientifique</idno><idno type="stamp" n="INRIA">INRIA - Institut National de Recherche en Informatique et en Automatique</idno><idno type="stamp" n="INRIA-LORRAINE">INRIA Nancy - Grand Est</idno><idno type="stamp" n="LORIA2">Publications du LORIA</idno><idno type="stamp" n="INRIA-NANCY-GRAND-EST">INRIA Nancy - Grand Est</idno><idno type="stamp" n="LORIA">LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications</idno><idno type="stamp" n="LORIA-TALC" p="LORIA">Traitement automatique des langues et des connaissances</idno><idno type="stamp" n="INRIA2">INRIA 2</idno><idno type="stamp" n="INPL">Institut National Polytechnique de Lorraine</idno><idno type="stamp" n="LABO-LORIA-SET" p="LORIA">LABO-LORIA-SET</idno><idno type="stamp" n="UNIV-LORRAINE">Université de Lorraine</idno></seriesStmt><notesStmt><note type="audience" n="2">International</note><note type="invited" n="0">No</note><note type="popular" n="0">No</note><note type="peer" n="1">Yes</note><note type="proceedings" n="1">Yes</note></notesStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">A Level-Building Top-Down Parsing Algorithm for Context-Free Grammars in Continuous Speech Recognition</title><author role="aut"><persName><forename type="first">François</forename><surname>Charpillet</surname></persName><email>francois.charpillet@loria.fr</email><idno type="idHal">francois-charpillet</idno><idno type="halAuthorId">58657</idno><affiliation ref="#struct-2359"></affiliation></author><author role="aut"><persName><forename type="first">Joseph</forename><surname>Di Martino</surname></persName><email>jdm@loria.fr</email><idno type="halAuthorId">861252</idno><orgName ref="#struct-413289"></orgName><affiliation ref="#struct-2359"></affiliation></author></analytic><monogr><meeting><title>EUROSPEECH - Third European Conference on Speech Communication and Technology - 1993</title><date type="start">1993-09-22</date><date type="end">1993-09-25</date><settlement>Berlin</settlement><country key="DE">Germany</country></meeting><imprint><biblScope unit="pp">1947-1949</biblScope><date type="datePub">1993</date></imprint></monogr></biblStruct></sourceDesc><profileDesc><langUsage><language ident="en">English</language></langUsage><textClass><keywords scheme="author"><term xml:lang="en">Dynamic Programming</term><term xml:lang="en">Context-Free</term><term xml:lang="en">Grammars</term><term xml:lang="en">Continuous Speech</term></keywords><classCode scheme="halDomain" n="info.info-ts">Computer Science [cs]/Signal and Image Processing</classCode><classCode scheme="halDomain" n="spi.signal">Engineering Sciences [physics]/Signal and Image processing</classCode><classCode scheme="halTypology" n="COMM">Conference papers</classCode></textClass><abstract xml:lang="en">We present in this paper a dynamic programming parsing algorithm in the framework of continuous speech recognition. The language of the applications we want to deal with, is described using a context-free grammar given in Greibach normal form. The parsing algorithm follows the level-building technique and finds the p sentences matching the speech signal with the best scores. Our approach is different from the existing ones, in the sense that it is suboptimal but with a lower order of complexity. By suboptimal we mean that a syntactically correct sentence with a score belonging to the p best ones can be missed by our algorithm. This leads us to discuss the trade-off between quality of results on the one hand and the complexity of the algorithm on the other hand. As a conclusion, we will see that in practice, our approach yields results of comparable quality in spite of their slight theoritical corruption.</abstract></profileDesc></hal></record>Pour manipuler ce document sous Unix (Dilib)
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