Optimisation d'un tuteur intelligent à partir d'un jeu de données fixé
Identifieur interne : 001A91 ( Main/Exploration ); précédent : 001A90; suivant : 001A92Optimisation d'un tuteur intelligent à partir d'un jeu de données fixé
Auteurs : Lucie Daubigney [France] ; Matthieu Geist [France] ; Olivier Pietquin [France]Source :
Abstract
Dans cet article, nous présentons une méthode générale pour optimiser un tuteur intelligent dans le domaine de l'acquisition d'une seconde langue. Plus particulièrement, le processus d'optimisation a pour but de trouver une stratégie qui propose la meilleure séquence de phases d'évaluation et d'enseignement afin de maximiser l'augmentation des connaissances de l'apprenant. La principale caractéristique de la méthode proposée est qu'elle est capable d'apprendre la meilleure stratégie à partir d'un jeu fixe de données, collectées à partir d'une stratégie définie à la main. Ainsi, aucun modèle, ni cognitif ni probabiliste de l'apprenant, n'est nécessaire. Seules sont requises des observations du comportement de l'apprenant alors qu'il interagit avec un système non-optimal. Pour ce faire, un algorithme de programmation dynamique approchée en mode hors-ligne est utilisé : l'algorithme LSPI (Least Square Policy Iteration). Des résultats obtenus avec des données simulées semblent prometteurs.
Url:
Affiliations:
- France
- Franche-Comté, Grand Est, Lorraine (région)
- Besançon, Metz, Nancy
- Université Paul Verlaine - Metz, Université de Bourgogne Franche-Comté, Université de Franche-Comté, Université de Lorraine
Links toward previous steps (curation, corpus...)
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- to stream Hal, to step Curation: 006238
- to stream Hal, to step Checkpoint: 001709
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- to stream Main, to step Curation: 001A91
Le document en format XML
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Equipe Information, Multimodalité et Signal</orgName><desc><address><country key="FR"></country></address></desc><listRelation><relation active="#struct-24541" type="direct"></relation><relation active="#struct-242365" type="indirect"></relation><relation active="#struct-411575" type="indirect"></relation><relation active="#struct-301991" type="indirect"></relation><relation active="#struct-301990" type="indirect"></relation><relation active="#struct-300812" type="indirect"></relation><relation active="#struct-300413" type="indirect"></relation><relation active="#struct-300289" type="indirect"></relation><relation name="UMI2958" active="#struct-441569" type="indirect"></relation><relation active="#struct-26305" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-24541" type="direct"><org type="laboratory" xml:id="struct-24541" status="VALID"><idno type="RNSR">200619366D</idno><orgName>Georgia Tech - CNRS [Metz]</orgName><orgName type="acronym">UMI2958</orgName><desc><address><addrLine>Metz Technopôle 2-3 rue Marconi 57070 METZ</addrLine><country key="FR"></country></address><ref type="url">http://www.umi2958.eu</ref></desc><listRelation><relation active="#struct-242365" type="direct"></relation><relation active="#struct-411575" type="direct"></relation><relation active="#struct-301991" type="direct"></relation><relation active="#struct-301990" type="direct"></relation><relation active="#struct-300812" type="direct"></relation><relation active="#struct-300413" type="direct"></relation><relation active="#struct-300289" type="direct"></relation><relation name="UMI2958" active="#struct-441569" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-242365" type="indirect"><org type="institution" xml:id="struct-242365" status="VALID"><idno type="IdRef">026403188</idno><idno type="ISNI">0000 0001 2188 3779 </idno><orgName>Université de Franche-Comté</orgName><orgName type="acronym">UFC</orgName><desc><address><country key="FR"></country></address><ref type="url">http://www.univ-fcomte.fr</ref></desc></org></tutelle><tutelle active="#struct-411575" type="indirect"><org type="institution" xml:id="struct-411575" status="VALID"><orgName>CentraleSupélec</orgName><desc><address><addrLine>3, rue Joliot Curie,Plateau de Moulon,91192 GIF-SUR-YVETTE Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.centralesupelec.fr</ref></desc></org></tutelle><tutelle active="#struct-301991" type="indirect"><org type="institution" xml:id="struct-301991" status="VALID"><orgName>Georgia Tech Lorraine</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-301990" type="indirect"><org type="institution" xml:id="struct-301990" status="VALID"><orgName>Georgia Institute of Technology [Atlanta]</orgName><desc><address><addrLine>North Avenue, Atlanta, GA 30332</addrLine><country key="US"></country></address><ref type="url">http://www.gatech.edu/</ref></desc></org></tutelle><tutelle active="#struct-300812" type="indirect"><org type="institution" xml:id="struct-300812" status="VALID"><orgName>SUPELEC</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300413" type="indirect"><org type="institution" xml:id="struct-300413" status="VALID"><orgName>Ecole Nationale Supérieure des Arts et Metiers Metz</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300289" type="indirect"><org type="institution" xml:id="struct-300289" status="OLD"><orgName>Université Paul Verlaine - Metz</orgName><orgName type="acronym">UPVM</orgName><date type="end">2011-12-31</date><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle name="UMI2958" active="#struct-441569" type="indirect"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="IdRef">02636817X</idno><idno type="ISNI">0000000122597504</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle><tutelle active="#struct-26305" type="direct"><org type="laboratory" xml:id="struct-26305" status="VALID"><orgName>SUPELEC-Campus Metz</orgName><desc><address><addrLine>2 rue Edouard Belin 57070 Metz</addrLine><country key="FR"></country></address><ref type="url">http://www.metz.supelec.fr/metz/</ref></desc><listRelation><relation active="#struct-300812" type="direct"></relation></listRelation></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city" wicri:auto="siege">Besançon</settlement><region type="region" nuts="2">Franche-Comté</region></placeName><orgName type="university">Université de Franche-Comté</orgName><orgName type="institution" wicri:auto="newGroup">Université de Bourgogne Franche-Comté</orgName><placeName><settlement type="city">Metz</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region></placeName><orgName type="university">Université Paul Verlaine - Metz</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName></affiliation></author><author><name sortKey="Pietquin, Olivier" sort="Pietquin, Olivier" uniqKey="Pietquin O" first="Olivier" last="Pietquin">Olivier Pietquin</name><affiliation wicri:level="1"><hal:affiliation type="researchteam" xml:id="struct-394500" status="INCOMING"><orgName>IMS - Equipe Information, Multimodalité et Signal</orgName><desc><address><country key="FR"></country></address></desc><listRelation><relation active="#struct-24541" type="direct"></relation><relation active="#struct-242365" type="indirect"></relation><relation active="#struct-411575" type="indirect"></relation><relation active="#struct-301991" type="indirect"></relation><relation active="#struct-301990" type="indirect"></relation><relation active="#struct-300812" type="indirect"></relation><relation active="#struct-300413" type="indirect"></relation><relation active="#struct-300289" type="indirect"></relation><relation name="UMI2958" active="#struct-441569" type="indirect"></relation><relation active="#struct-26305" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-24541" type="direct"><org type="laboratory" xml:id="struct-24541" status="VALID"><idno type="RNSR">200619366D</idno><orgName>Georgia Tech - 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Metz</orgName><orgName type="acronym">UPVM</orgName><date type="end">2011-12-31</date><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle name="UMI2958" active="#struct-441569" type="indirect"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="IdRef">02636817X</idno><idno type="ISNI">0000000122597504</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle><tutelle active="#struct-26305" type="direct"><org type="laboratory" xml:id="struct-26305" status="VALID"><orgName>SUPELEC-Campus Metz</orgName><desc><address><addrLine>2 rue Edouard Belin 57070 Metz</addrLine><country key="FR"></country></address><ref type="url">http://www.metz.supelec.fr/metz/</ref></desc><listRelation><relation active="#struct-300812" type="direct"></relation></listRelation></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city" wicri:auto="siege">Besançon</settlement><region type="region" nuts="2">Franche-Comté</region></placeName><orgName type="university">Université de Franche-Comté</orgName><orgName type="institution" wicri:auto="newGroup">Université de Bourgogne Franche-Comté</orgName><placeName><settlement type="city">Metz</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region></placeName><orgName type="university">Université Paul Verlaine - Metz</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName></affiliation></author></analytic></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="fr">Dans cet article, nous présentons une méthode générale pour optimiser un tuteur intelligent dans le domaine de l'acquisition d'une seconde langue. Plus particulièrement, le processus d'optimisation a pour but de trouver une stratégie qui propose la meilleure séquence de phases d'évaluation et d'enseignement afin de maximiser l'augmentation des connaissances de l'apprenant. La principale caractéristique de la méthode proposée est qu'elle est capable d'apprendre la meilleure stratégie à partir d'un jeu fixe de données, collectées à partir d'une stratégie définie à la main. Ainsi, aucun modèle, ni cognitif ni probabiliste de l'apprenant, n'est nécessaire. Seules sont requises des observations du comportement de l'apprenant alors qu'il interagit avec un système non-optimal. Pour ce faire, un algorithme de programmation dynamique approchée en mode hors-ligne est utilisé : l'algorithme LSPI (Least Square Policy Iteration). Des résultats obtenus avec des données simulées semblent prometteurs.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Franche-Comté</li><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Besançon</li><li>Metz</li><li>Nancy</li></settlement><orgName><li>Université Paul Verlaine - Metz</li><li>Université de Bourgogne Franche-Comté</li><li>Université de Franche-Comté</li><li>Université de Lorraine</li></orgName></list><tree><country name="France"><region name="Grand Est"><name sortKey="Daubigney, Lucie" sort="Daubigney, Lucie" uniqKey="Daubigney L" first="Lucie" last="Daubigney">Lucie Daubigney</name></region><name sortKey="Geist, Matthieu" sort="Geist, Matthieu" uniqKey="Geist M" first="Matthieu" last="Geist">Matthieu Geist</name><name sortKey="Pietquin, Olivier" sort="Pietquin, Olivier" uniqKey="Pietquin O" first="Olivier" last="Pietquin">Olivier Pietquin</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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