Verbal stem space and verb to noun conversion in French

In this paper I present the verbal stem space in French and its use in lexeme formation. First, I present the stem spaces worked out by Bonami & Boye' (2002; 2003; 2005) for verbs and adjectives. Then I show that the verbal stem space needs to be extended with an extra slot in order to account for a number of lexeme-formation rules. Finally, I show that verb to noun conversion can select three different stems as input

A Task-based Evaluation of French Morphological Resources and Tools

Morphology is a key component for many Language Technology applications. However, morphological relations, especially those relying on the derivation and compounding processes, are often addressed in a superficial manner. In this article, we focus on assessing the relevance of deep and motivated morphological knowledge in Natural Language Processing applications. We first describe an annotation experiment whose goal is to evaluate the role of morphology for one task, namely Question Answering (QA). We then highlight the kind of linguistic knowledge that is necessary for this particular task and propose a qualitative analysis of morphological phenomena in order to identify the morphological processes that are most relevant. Based on this study, we perform an intrinsic evaluation of existing tools and resources for French morphology, in order to quantify their coverage. Our conclusions provide helpful insights for using and building appropriate morphological resources and tools that could have a significant impact on the application performance

Morphological resources for precise information retrieval

International audienceQuestion answering (QA) systems aim at providing a precise answer to a given user question. Their major difficulty lies in the lexical gap problem between question and answering passages. We present here the different types of morphological phenomena in question answering, the resources available for French, and in particular a resource that we built containing deverbal agent nouns. Then, we evaluate the results of a particular QA system, according to the morphological knowledge used

Les récits de conjuration sous le règne de Louis XIV

Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal

Valorisation de sédiments traités en techniques routières : contribution à la mise en place d'un protocole d'acceptabilité

Le dragage des sédiments est nécessaire pour maintenir le transport fluvial mais les sédiments extraits sont souvent pollués. La société Solvay a mis au point un procédé pour les traiter et permettre ainsi d’envisager une valorisation : le procédé Novosol®. Celui-ci permet de fixer les métaux lourds mais aussi de détruire la matière organique. Les principales caractéristiques d'un sédiment traité et sa valorisation en techniques routières sont présentées dans cette thèse. D'un point de vue mécanique, les mélanges réalisés avec les sédiments sont conformes aux normes routières. Les tests environnementaux sur les matériaux incorporant les sédiments traités montrent que le taux de relargage des métaux lourds est similaire à celui sur matériaux témoins. L'ensemble de ces résultats permet d'envisager l'utilisation des sédiments traités Novosol® en techniques routières.Dredging sediments is necessary to ensure navigation but extracted sediments are often polluted. The Solvay Company has been working on the development of a treatment: the Novosol® process. It allows fixing heavy metals and eliminating organic matter. This article reports on the characteristics of a treated sediment and on its use in road building techniques. From mechanical point of view, the mixtures incorporating sediments are standard. The environmental tests carried out on the mixtures show that the release of heavy metals and other species is the same whether the materials incorporate the treated sediment or not. These results suggest that the beneficial use of treated sediments in road building techniques is relevant