65 research outputs found

    A Task-based Evaluation of French Morphological Resources and Tools

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    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 superÔ¨Ācial manner. In this article, we focus on assessing the relevance of deep and motivated morphological knowledge in Natural Language Processing applications. We Ô¨Ārst 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 signiÔ¨Ācant impact on the application performance

    Morphological resources for precise information retrieval

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    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

    De la simplicité en morphologie

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    International audienceLes unit√©s lexicales simples ne font que rarement l‚Äôobjet d‚Äô√©tudes en morphologie d√©rivationnelle, bien qu‚Äôelles soient le point de d√©part des m√©canismes qui la sous-tendent. Nous nous proposons dans cet article d‚Äô√©laborer et d‚Äôanalyser un important corpus de noms simples du fran√ßais. L‚Äôobjectif est de v√©rifier l‚Äôhypoth√®se de Croft (1991) selon laquelle les noms simples d√©notent prototypiquement des objets, contrairement aux noms construits, qui renvoient principalement √† des actions ou √† des propri√©t√©s, selon qu‚Äôils sont d√©riv√©s de verbes ou d‚Äôadjectifs. Nous constituons dans un premier temps un corpus de noms simples, ce qui pr√©suppose de d√©finir cette notion, plus probl√©matique qu‚Äôelle ne le para√ģt d‚Äôembl√©e. Nous proposons dans un second temps une annotation s√©mantique des quelque 3500 noms simples retenus, en noms d‚Äôobjet, d‚Äôaction ou de propri√©t√©, et nous d√©taillons la s√©rie de tests linguistiques employ√©s pour √©tablir cette classification. Il ressort de notre √©tude qu‚Äôenviron un quart des noms simples ne d√©notent pas (ou pas uniquement) des objets. Certains d‚Äôentre eux rel√®vent de classes nominales plus sp√©cifiques, non r√©ductibles aux trois cat√©gories initialement consid√©r√©es

    The lexeme in descriptive and theoretical morphology

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    After being dominant during about a century since its invention by Baudouin de Courtenay at the end of the nineteenth century, morpheme is more and more replaced by lexeme in contemporary descriptive and theoretical morphology.  The notion of a lexeme is usually associated with the work of P. H. Matthews (1972, 1974), who characterizes it as a lexical entity abstracting over individual inflected words. Over the last three decades, the lexeme has become a cornerstone of much work in both inflectional morphology and word formation (or, as it is increasingly been called, lexeme formation). The papers in the present volume take stock of the descriptive and theoretical usefulness of the lexeme, but also adress many of the challenges met by classical lexeme-based theories of morphology

    The lexeme in descriptive and theoretical morphology

    Get PDF
    After being dominant during about a century since its invention by Baudouin de Courtenay at the end of the nineteenth century, morpheme is more and more replaced by lexeme in contemporary descriptive and theoretical morphology.  The notion of a lexeme is usually associated with the work of P. H. Matthews (1972, 1974), who characterizes it as a lexical entity abstracting over individual inflected words. Over the last three decades, the lexeme has become a cornerstone of much work in both inflectional morphology and word formation (or, as it is increasingly been called, lexeme formation). The papers in the present volume take stock of the descriptive and theoretical usefulness of the lexeme, but also adress many of the challenges met by classical lexeme-based theories of morphology

    The lexeme in descriptive and theoretical morphology

    Get PDF
    After being dominant during about a century since its invention by Baudouin de Courtenay at the end of the nineteenth century, morpheme is more and more replaced by lexeme in contemporary descriptive and theoretical morphology.  The notion of a lexeme is usually associated with the work of P. H. Matthews (1972, 1974), who characterizes it as a lexical entity abstracting over individual inflected words. Over the last three decades, the lexeme has become a cornerstone of much work in both inflectional morphology and word formation (or, as it is increasingly been called, lexeme formation). The papers in the present volume take stock of the descriptive and theoretical usefulness of the lexeme, but also adress many of the challenges met by classical lexeme-based theories of morphology

    The lexeme in descriptive and theoretical morphology

    Get PDF
    After being dominant during about a century since its invention by Baudouin de Courtenay at the end of the nineteenth century, morpheme is more and more replaced by lexeme in contemporary descriptive and theoretical morphology.  The notion of a lexeme is usually associated with the work of P. H. Matthews (1972, 1974), who characterizes it as a lexical entity abstracting over individual inflected words. Over the last three decades, the lexeme has become a cornerstone of much work in both inflectional morphology and word formation (or, as it is increasingly been called, lexeme formation). The papers in the present volume take stock of the descriptive and theoretical usefulness of the lexeme, but also adress many of the challenges met by classical lexeme-based theories of morphology

    The lexeme in descriptive and theoretical morphology

    Get PDF
    After being dominant during about a century since its invention by Baudouin de Courtenay at the end of the nineteenth century, morpheme is more and more replaced by lexeme in contemporary descriptive and theoretical morphology.  The notion of a lexeme is usually associated with the work of P. H. Matthews (1972, 1974), who characterizes it as a lexical entity abstracting over individual inflected words. Over the last three decades, the lexeme has become a cornerstone of much work in both inflectional morphology and word formation (or, as it is increasingly been called, lexeme formation). The papers in the present volume take stock of the descriptive and theoretical usefulness of the lexeme, but also adress many of the challenges met by classical lexeme-based theories of morphology

    The lexeme in descriptive and theoretical morphology

    Get PDF
    After being dominant during about a century since its invention by Baudouin de Courtenay at the end of the nineteenth century, morpheme is more and more replaced by lexeme in contemporary descriptive and theoretical morphology.  The notion of a lexeme is usually associated with the work of P. H. Matthews (1972, 1974), who characterizes it as a lexical entity abstracting over individual inflected words. Over the last three decades, the lexeme has become a cornerstone of much work in both inflectional morphology and word formation (or, as it is increasingly been called, lexeme formation). The papers in the present volume take stock of the descriptive and theoretical usefulness of the lexeme, but also adress many of the challenges met by classical lexeme-based theories of morphology

    The lexeme in descriptive and theoretical morphology

    Get PDF
    After being dominant during about a century since its invention by Baudouin de Courtenay at the end of the nineteenth century, morpheme is more and more replaced by lexeme in contemporary descriptive and theoretical morphology.  The notion of a lexeme is usually associated with the work of P. H. Matthews (1972, 1974), who characterizes it as a lexical entity abstracting over individual inflected words. Over the last three decades, the lexeme has become a cornerstone of much work in both inflectional morphology and word formation (or, as it is increasingly been called, lexeme formation). The papers in the present volume take stock of the descriptive and theoretical usefulness of the lexeme, but also adress many of the challenges met by classical lexeme-based theories of morphology
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