Josiane Mothe


2020

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Aggression Identification in Social Media: a Transfer Learning Based Approach
Faneva Ramiandrisoa | Josiane Mothe
Proceedings of the Second Workshop on Trolling, Aggression and Cyberbullying

The way people communicate have changed in many ways with the outbreak of social media. One of the aspects of social media is the ability for their information producers to hide, fully or partially, their identity during a discussion; leading to cyber-aggression and interpersonal aggression. Automatically monitoring user-generated content in order to help moderating it is thus a very hot topic. In this paper, we propose to use the transformer based language model BERT (Bidirectional Encoder Representation from Transformer) (Devlin et al., 2019) to identify aggressive content. Our model is also used to predict the level of aggressiveness. The evaluation part of this paper is based on the dataset provided by the TRAC shared task (Kumar et al., 2018a). When compared to the other participants of this shared task, our model achieved the third best performance according to the weighted F1 measure on both Facebook and Twitter collections.

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IRIT at TRAC 2020
Faneva Ramiandrisoa | Josiane Mothe
Proceedings of the Second Workshop on Trolling, Aggression and Cyberbullying

This paper describes the participation of the IRIT team in the TRAC (Trolling, Aggression and Cyberbullying) 2020 shared task (Bhattacharya et al., 2020) on Aggression Identification and more precisely to the shared task in English language. The shared task was further divided into two sub-tasks: (a) aggression identification and (b) misogynistic aggression identification. We proposed to use the transformer based language model BERT (Bidirectional Encoder Representation from Transformer) for the two sub-tasks. Our team was qualified as twelfth out of sixteen participants on sub-task (a) and eleventh out of fifteen participants on sub-task (b).

2018

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Building Evaluation Datasets for Cultural Microblog Retrieval
Lorraine Goeuriot | Josiane Mothe | Philippe Mulhem | Eric SanJuan
Proceedings of the Eleventh International Conference on Language Resources and Evaluation (LREC 2018)

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IRIT at TRAC 2018
Faneva Ramiandrisoa | Josiane Mothe
Proceedings of the First Workshop on Trolling, Aggression and Cyberbullying (TRAC-2018)

This paper describes the participation of the IRIT team to the TRAC 2018 shared task on Aggression Identification and more precisely to the shared task in English language. The three following methods have been used: a) a combination of machine learning techniques that relies on a set of features and document/text vectorization, b) Convolutional Neural Network (CNN) and c) a combination of Convolutional Neural Network (CNN) and Long Short-Term Memory (LSTM). Best results were obtained when using the method (a) on the English test data from Facebook which ranked our method sixteenth out of thirty teams, and the method (c) on the English test data from other social media, where we obtained the fifteenth rank out of thirty.

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Classification multi-label à grande dimension pour la détection de concepts médicaux (Large multi-label classification for medical concepts detection)
Josiane Mothe | Nomena Ny Hoavy | Mamitiana-Ignace Randrianarivony
Actes de la Conférence TALN. Volume 2 - Démonstrations, articles des Rencontres Jeunes Chercheurs, ateliers DeFT

Dans ce papier, nous présentons une méthode pour associer de façon automatique des concepts à des images. Nous nous focalisons plus particulièrement sur des images médicales à annoter avec des concepts UMLS. Nous avons développé deux modèles de transfert d’apprentissage à partir des réseaux CNN VGG19 et ResNet50 . Nous avons utilisé des modèles avec des techniques simples et que nous avons optimisés pour l’apprentissage. Les résultats que nous avons obtenus en utilisant les données de la tâche ImageCLEF 2017 sont encourageants et comparables à ceux des autres participants.

2013

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Information Retrieval and Natural Language Processing (Recherche d’Information et Traitement Automatique des Langues Naturelles) [in French]
Josiane Mothe
Proceedings of TALN 2013 (Volume 4: Invited Conferences)

2012

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IRIT: Textual Similarity Combining Conceptual Similarity with an N-Gram Comparison Method
Davide Buscaldi | Ronan Tournier | Nathalie Aussenac-Gilles | Josiane Mothe
*SEM 2012: The First Joint Conference on Lexical and Computational Semantics – Volume 1: Proceedings of the main conference and the shared task, and Volume 2: Proceedings of the Sixth International Workshop on Semantic Evaluation (SemEval 2012)