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Sentiment Composition Using a Parabolic Model

Chardon, Baptiste and Benamara Zitoune, Farah and Mathieu, Yannick and Popescu, Vladimir and Asher, Nicholas Sentiment Composition Using a Parabolic Model. (2013) In: 10th International Workshop on Computational Semantics (IWCS 2013), 19 March 2013 - 22 March 2013 (Potsdam, Germany).

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In this paper, we propose a computational model that accounts for the effects of negation and modality on opinion expressions. Based on linguistic experiments informed by native speakers, we distil these effects according to the type of modality and negation. The model relies on a parabolic representation where an opinion expression is represented as a point on a parabola. Negation is modelled as functions over this parabola whereas modality through a family of parabolas of different slopes; each slope corresponds to a different certainty degree. The model is evaluated using two experiments, one involving direct strength judgements on a 7-point scale and the other relying on a sentiment annotated corpus. The empirical evaluation of our model shows that it matches the way humans handle negation and modality in opinionated sentences

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-01239722
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Université de Paris Diderot - Paris 7 (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Synapse Développement (FRANCE)
Laboratory name:
Deposited On:05 Nov 2015 15:02

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