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Category:   E-Announce
Subject:   Call for participation DEFT'09
From:  
Email:   Martine.Hurault-Plantet_(on)_limsi.fr
Date received:   12 Dec 2008
Start date:   26 Jun 2009

******************************************************************** DEFT'09 Call for participation Evaluation workshop in text mining: multilingual analysis of opinion http://deft09.limsi.fr/ ******************************************************************** Important dates: Registration: from december 10, 2008 Training corpora: january 7, 2009 Test: three days during the last two weeks of march 2009 Workshop : june 26, during TALN'09 conference, Senlis, France (TALN : Traitement Automatique du Langage Naturel) ******************************************************************** DEFT'09, fifth edition of the DEFT evaluation campaign in text mining (http://deft.limsi.fr/), will deal this year with the multilingual analysis of opinion. The final workshop will be held in Senlis as part of the TALN conference. Analysis of opinion, which already was the subject of a preceding edition of DEFT, is a topic of interest in more than one way. Companies thrive on it, sometimes in addition to more classic opinion polls, and the Web provides this analysis with a profuse matter found in blogs, in sites dedicated to the evaluation of products, or in online newspapers. The applications include the analysis and follow-up of a public or mediatic "image", as well as developments in the spheres of business, (image of a product, of a service, of a company), of public life (images of mediatic people) and of politics (how a political project is perceived). An analysis of opinion begins with the detection of the more or less subjective nature of a text or fragment, i.e. deciding if it is conveying a sentiment, a judgement, an opinion, or if it is stating plain facts. Parts of text containing an opinion are then analyzed to assign a value to the expressed opinion, either according to a positive/negative polarity, or according to a scale of values (see DEFT'07). Lastly, judgements on a given topic may be tainted by more global opinions, e. g. political position, or may reflect these opinions. Within this famework, we propose three different tasks which can be addressed separately: - The first task will be the detection of the objective or subjective character of a text, with a corpus of newspaper articles in French, English and Italian, from the sections Letter from the Editor, Debates, Analyses, News in local and foreign politics and Economy. The reference is established by projecting each section on both the subjective and the objective dimension. For instance, the Letter from the editor, which usually states an opinion, has the type subjective, while the News, describing actual facts, have the type objective. - Detecting the subjective parts of a text (which may be globally objective or subjective) will be the second task. In addition to the aforementioned newspaper corpus, it will use a set of parliamentary debates in French, English and Italian. The reference will be established by crossing results from competitors: subjective fragments will be those tagged as such by a majority of participants. The majority threshold will be determined empirically, by checking the annotations produced by the parsers. - The third task will be the detection of the political party to which a speaker belongs, in the same three political corpora. This party will have to be picked from a finite set of European parties. Competitors must accomplish at least one of the three tasks. Each task must be accomplished at least on the French corpus. Teams taking part in DEFT'09 must register via the online form and sign the end user contract for linguistic resources in the framework of an evaluation project (http://deft09.limsi.fr/index.php?id=5&lang=en). Training corpora will be made available to registered paticipants from January 7, 2009. These corpora are composed from 600f original corpora. The remaining 400f corpora will be used for the test. This test will take place within a 14-day interval, from the middle of March. Starting from a chosen date within the interval, participants benefit from three days to apply on the test corpora the methods developed on the training corpora. ******************************************************************** Committees: Organising Committee: Heads: Martine Hurault-Plantet, Cyril Grouin (LIMSI) Members: Béatrice Arnulphy, Jean-Baptiste Berthelin, Sarra El Ayari, Anne Garcia-Fernandez, Arnaud Grappy, Isabelle Robba, Pierre Zweigenbaum (LIMSI) Programme Committee: Head: Patrick Paroubek (LIMSI) Members: Catherine Berrut (LIG) Fabrice Clérot (France Telecom) Guillaume Cleuziou (LIFO) Béatrice Daille (LINA) Marc El-Bèze (LIA) Patrick Gallinari (LIP6) Thierry Hamon (LIPN) Fidélia Ibekwe-SanJuan (ELICO) Pascal Poncelet (LIRMM) Jean-Michel Renders (XRCE) Christophe Roche (LISTIC) Mathieu Roche (LIRMM) Pascale Sébillot (IRISA) François Yvon (LIMSI - TLP) _______________________________________________ Elsnet-list mailing list Elsnet-list_(at)_elsnet.org http://mailman.elsnet.org/mailman/listinfo/elsnet-list
 

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