FouDanGA : Fouille de données pour l'annotation de génomes d'actinomycètes
Identifieur interne : 006427 ( Main/Exploration ); précédent : 006426; suivant : 006428FouDanGA : Fouille de données pour l'annotation de génomes d'actinomycètes
Auteurs : Jean-François Mari [France] ; Fabrice Touzain [France] ; Sébastien Hergalant [France] ; Isabelle Debled-Rennesson [France]Source :
Descripteurs français
Abstract
L'accumulation des séquences issues des projets de séquençage oblige la mise en œuvre de méthodes de fouilles de données pour comprendre les mécanismes impliqués dans l'expression, la transmission et l'évolution des gènes. Nous nous intéressons aux méthodes combinatoires et stochastiques permettant de prédire les séquences promotrices et autres petites séquences régulatrices chez les bactéries. Deux approches informatiques sont développées. La première correspond à l'utilisation d'algorithmes de recherche de mots puis de couples de mots sur-représentés dans les régions en amont de gènes orthologues d'espèces phylogénétiquement proches. La seconde correspond à une méthode de fouille de données génomiques sans a priori pour faire émerger des sous-séquences d'ADN dans les régions intergéniques. Le processus de fouille de données se traduit par la spécification de modèles de Markov cachés du second-ordre (HMM2), leur apprentissage et leur utilisation pour faire apparaître des irrégularités dans des grandes séquences d'ADN.
Url:
Affiliations:
- France
- Grand Est, Lorraine (région)
- Nancy
- Institut national polytechnique de Lorraine, Université Nancy 2, Université de Lorraine
Links toward previous steps (curation, corpus...)
- to stream Hal, to step Corpus: 005C63
- to stream Hal, to step Curation: 005C63
- to stream Hal, to step Checkpoint: 004804
- to stream Main, to step Merge: 006721
- to stream Main, to step Curation: 006427
Le document en format XML
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status="OLD"><orgName>Université Nancy 2</orgName><date type="end">2011-12-31</date><desc><address><addrLine>91 avenue de la Libération, BP 454, 54001 Nancy cedex</addrLine><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300293" type="indirect"><org type="institution" xml:id="struct-300293" status="OLD"><orgName>Institut National Polytechnique de Lorraine</orgName><orgName type="acronym">INPL</orgName><date type="end">2011-12-31</date><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-2496" type="direct"><org type="laboratory" xml:id="struct-2496" status="OLD"><orgName>INRIA Lorraine</orgName><desc><address><addrLine>615 rue du Jardin Botanique 54600 Villers-lès-Nancy</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/centre-de-recherche-inria/nancy-grand-est</ref></desc><listRelation><relation active="#struct-300009" 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status="OLD"><orgName>Université Nancy 2</orgName><date type="end">2011-12-31</date><desc><address><addrLine>91 avenue de la Libération, BP 454, 54001 Nancy cedex</addrLine><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300293" type="indirect"><org type="institution" xml:id="struct-300293" status="OLD"><orgName>Institut National Polytechnique de Lorraine</orgName><orgName type="acronym">INPL</orgName><date type="end">2011-12-31</date><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-2496" type="direct"><org type="laboratory" xml:id="struct-2496" status="OLD"><orgName>INRIA Lorraine</orgName><desc><address><addrLine>615 rue du Jardin Botanique 54600 Villers-lès-Nancy</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/centre-de-recherche-inria/nancy-grand-est</ref></desc><listRelation><relation active="#struct-300009" type="direct"></relation></listRelation></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Nancy</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region></placeName><orgName type="university">Université Nancy 2</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName><placeName><settlement type="city">Nancy</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region></placeName><orgName type="university">Institut national polytechnique de Lorraine</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName></affiliation></author><author><name sortKey="Debled Rennesson, Isabelle" sort="Debled Rennesson, Isabelle" uniqKey="Debled Rennesson I" first="Isabelle" last="Debled-Rennesson">Isabelle Debled-Rennesson</name><affiliation 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status="OLD"><orgName>Université Nancy 2</orgName><date type="end">2011-12-31</date><desc><address><addrLine>91 avenue de la Libération, BP 454, 54001 Nancy cedex</addrLine><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300293" type="indirect"><org type="institution" xml:id="struct-300293" status="OLD"><orgName>Institut National Polytechnique de Lorraine</orgName><orgName type="acronym">INPL</orgName><date type="end">2011-12-31</date><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-2496" type="direct"><org type="laboratory" xml:id="struct-2496" status="OLD"><orgName>INRIA Lorraine</orgName><desc><address><addrLine>615 rue du Jardin Botanique 54600 Villers-lès-Nancy</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/centre-de-recherche-inria/nancy-grand-est</ref></desc><listRelation><relation active="#struct-300009" type="direct"></relation></listRelation></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Nancy</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region></placeName><orgName type="university">Université Nancy 2</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName><placeName><settlement type="city">Nancy</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region></placeName><orgName type="university">Institut national polytechnique de Lorraine</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName></affiliation></author></analytic></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="fr"><term>SFFT</term><term>approche comparative</term><term>facteur sigma</term><term>fouille de données</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="fr">L'accumulation des séquences issues des projets de séquençage oblige la mise en œuvre de méthodes de fouilles de données pour comprendre les mécanismes impliqués dans l'expression, la transmission et l'évolution des gènes. Nous nous intéressons aux méthodes combinatoires et stochastiques permettant de prédire les séquences promotrices et autres petites séquences régulatrices chez les bactéries. Deux approches informatiques sont développées. La première correspond à l'utilisation d'algorithmes de recherche de mots puis de couples de mots sur-représentés dans les régions en amont de gènes orthologues d'espèces phylogénétiquement proches. La seconde correspond à une méthode de fouille de données génomiques sans a priori pour faire émerger des sous-séquences d'ADN dans les régions intergéniques. Le processus de fouille de données se traduit par la spécification de modèles de Markov cachés du second-ordre (HMM2), leur apprentissage et leur utilisation pour faire apparaître des irrégularités dans des grandes séquences d'ADN.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Nancy</li></settlement><orgName><li>Institut national polytechnique de Lorraine</li><li>Université Nancy 2</li><li>Université de Lorraine</li></orgName></list><tree><country name="France"><region name="Grand Est"><name sortKey="Mari, Jean Francois" sort="Mari, Jean Francois" uniqKey="Mari J" first="Jean-François" last="Mari">Jean-François Mari</name></region><name sortKey="Debled Rennesson, Isabelle" sort="Debled Rennesson, Isabelle" uniqKey="Debled Rennesson I" first="Isabelle" last="Debled-Rennesson">Isabelle Debled-Rennesson</name><name sortKey="Hergalant, Sebastien" sort="Hergalant, Sebastien" uniqKey="Hergalant S" first="Sébastien" last="Hergalant">Sébastien Hergalant</name><name sortKey="Touzain, Fabrice" sort="Touzain, Fabrice" uniqKey="Touzain F" first="Fabrice" last="Touzain">Fabrice Touzain</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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