25 Juin - 1 Juillet

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Lundi 25 Juin
Heure: 14:00 - 15:00
Lieu: Salle B107, bâtiment B, Université de Villetaneuse
Résumé: The Arabic Ontology and Modernization of Lexical Semantic Resources
Description: Mustafa Jarrar The importance of lexical-semantic resources (linguistic ontologies, wordnets, thesauri, and dictionaries) is increasing in many modern application scenarios, such as multilingual big data, data governance, information retrieval, NLP, social networks, and others. In this talk we will present our experience in digitizing 150 multilingual lexicons and present the Arabic Ontology, which is a formal Arabic Wordnet with ontologically-clean content. We will also discuss how this content is ontologically we ll-founded and benchmarked to scientific advances rather than to speakers’ nai?ve beliefs as wordnets typically do, in addition to top levels and other ontology engineering challenges and mappings to other ontologies.
Mercredi 27 Juin
Heure: 14:00 - 15:00
Lieu: Salle Darwin, institut galilée
Résumé: Research Efforts at the Computational Approaches to Modeling Language Lab.
Description: Nizar Habash TBA
Jeudi 28 Juin
Heure: 14:00 - 15:30
Lieu: Salle B107, bâtiment B, Université de Villetaneuse
Résumé: Hyperparameter Optimization for Neural Networks
Description: Razvan Andonie We introduce a dynamic early stopping condition for Random Search optimization algorithms. We test our algorithm for SVM hyperparameter optimization for classification tasks, on six commonly used datasets. According to the experimental results, we reduce significantly the number of trials used. Since each trial requires a re-training of the SVM model, our method accelerates the RS optimization. The code runs on a multi-core system and we analyze the achieved scalability for an increasing number of cores.