Selon la représentation d’entrée, cette thèse étudie ces deux types : la génération de texte à partir de représentation de sens et à partir de texte. En la première partie (Génération des phrases), nous étudions comment effectuer la réalisation de surface symbolique à l’aide d’une grammaire robuste et efficace. Cette approche s’appuie sur une grammaire FB-LTAG et prend en entrée des arbres de dépendance peu profondes. La structure d’entrée est utilisée pour filtrer l’espace de recherche initial à l’aide d’un concept de filtrage local par polarité afin de paralléliser les processus. Afin nous proposons deux algorithmes de fouille d’erreur: le premier, un algorithme qui exploite les arbres de dépendance plutôt que des données séquentielles et le second, un algorithme qui structure la sortie de la fouille d’erreur au sein d’un arbre afin de représenter les erreurs de façon plus pertinente. Nous montrons que nos réalisateurs combinés à ces algorithmes de fouille d’erreur améliorent leur couverture significativement. En la seconde partie (Simplification des phrases), nous proposons l’utilisation d’une forme de représentations sémantiques (contre à approches basées la syntaxe ou SMT) afin d’améliorer la tâche de simplification de phrase. Nous utilisons les structures de représentation du discours pour la représentation sémantique profonde. Nous proposons alors deux méthodes de simplification de phrase: une première approche supervisée hybride qui combine une sémantique profonde à de la traduction automatique, et une seconde approche non-supervisée qui s’appuie sur un corpus comparable de Wikipedia / Depending on the input representation, this dissertation investigates issues from two classes: meaning representation (MR) to text and text-to-text generation. In the first class (MR-to-text generation, "Generating Sentences"), we investigate how to make symbolic grammar based surface realisation robust and efficient. We propose an efficient approach to surface realisation using a FB-LTAG and taking as input shallow dependency trees. Our algorithm combines techniques and ideas from the head-driven and lexicalist approaches. In addition, the input structure is used to filter the initial search space using a concept called local polarity filtering; and to parallelise processes. To further improve our robustness, we propose two error mining algorithms: one, an algorithm for mining dependency trees rather than sequential data and two, an algorithm that structures the output of error mining into a tree to represent them in a more meaningful way. We show that our realisers together with these error mining algorithms improves on both efficiency and coverage by a wide margin. In the second class (text-to-text generation, "Simplifying Sentences"), we argue for using deep semantic representations (compared to syntax or SMT based approaches) to improve the sentence simplification task. We use the Discourse Representation Structures for the deep semantic representation of the input. We propose two methods: a supervised approach (with state-of-the-art results) to hybrid simplification using deep semantics and SMT, and an unsupervised approach (with competitive results to the state-of-the-art systems) to simplification using the comparable Wikipedia corpus

L’étude de l’agrément en droit des sociétés révèle que les règles l’encadrant ne sont pas exemptes de lacunes ou d’incohérences. Ces dernières résultent notamment de leur édiction dispersée, dans des textes légaux ou réglementaires, au cas par cas, individuellement pour chaque forme sociale. En outre, leur intelligibilité est amoindrie par la corrélation parfois faite par la loi entre les règles de son domaine et ses formalités procédurales. De cet ensemble découle une certaine complexité, incompatible avec le besoin de sécurité juridique requise pour exécuter toute procédure. En l’occurrence, l’atteinte à la liberté ne réside plus dans l’absence de forme protectrice mais, paradoxalement, dans un formalisme trop pointilleux, dont l’application suscite un important contentieux. Néanmoins, le constat de la présence éventuelle de l’intuitu personae dans l’ensemble des sociétés suggère la possibilité d’unifier le domaine de l’agrément et, corrélativement, de simplifier sa mise en œuvre, grâce à l’élaboration d’un droit commun. À cette fin, une conception contractuelle des rapports sociaux donne de nombreuses clés de résolution des problèmes posés actuellement par son régime. Cette analyse faite du droit positif ne remet pas pour autant en cause le juste équilibre établi par la loi au nom de l’ordre public sociétaire. Celui-ci s’exprime par l’exigence du respect de formalités et d’obligations visant à protéger tant la société que son associé cédant. Au contraire même, ce point de vue permet de dégager les champs d’intervention réservés au législateur ne portant atteinte ni à la substance des droits de l’associé, ni aux concepts juridiques de droit commun. Cette méthode de traitement des difficultés soulevées aboutit à une reconstruction de la législation de l’agrément, davantage intelligible, augurant par là-même, une perspective concrète de création d’un droit français des sociétés fermées. / The study of corporate law certification reveals that the rules governing it are not free from gaps or inconsistencies. The latter result notably from their dispersed enactment, in legal or regulatory texts, on a case by case basis, individually for each social form. In addition, their intelligibility is diminished by the correlation sometimes made between the rules of his field and his procedural formalities. From this set flows a certain complexity, incompatible with the need for legal certainty required to execute any procedure. In this case, the infringement of liberty does not lie in the absence of a protective form but, paradoxically, in a formalism that is too fussy, the application of which gives rise to a serious dispute. Nevertheless, the observation of the possible presence of intuitu personae in all societies suggests the possibility of unifying the field of accreditation and, correspondingly, of simplifying its implementation, thanks to the elaboration of a common right. To this end, a contractual conception of social relations gives many keys to solving the problems currently posed by his regime. This analysis of positive law does not, however, call into question the proper balance established by law, aimed at protecting both society and its assigning partner, in the name of public societal order. Quite to the contrary, this point of view reinforces the effectiveness of the rule since the fields of intervention reserved to the legislator do not infringe either the substance of the rights of the partner or the legal concepts of the law. common right. This method of dealing with the difficulties raised leads to a reconstruction of the legislation of accreditation, which is more intelligible, thus auguring a concrete perspective of creation of a French law of closed companies, independent of any political instrumentalization.

Cette étude résulte d'une observation : le droit hongkongais des sociétés, appartenant à l'ordre juridique de la Common Law, semble produire de manière pragmatique des règles qui encouragent et facilitent le commerce. L'image du droit français des sociétés est frappante de rigidité, de lourdeur, de dirigisme et d'interventionnisme étatiques. Par rapport à cette image, celle du droit hongkongais surprend par sa souplesse voire sa simplicité, son intelligibilité, son effectivité et son efficacité. Nous avons identifié des règles et des mécanismes de la société fermée à risque limité hongkongaise, la Company, qui nous semblent constituer des éléments majeurs de son succès. Nous en avons compris les fondements, le fonctionnement et la portée afin de nous permettre de comparer ces règles et mécanismes à ceux de la SARL et de la SAS et d'y insuffler un vent de souplesse, de simplicité et de liberté encadrée. Les thèmes choisis relèvent de la rapidité et de la sécurité de l'immatriculation et de la dissolution, de la liberté statutaire et de son accompagnement par des modèles de statuts-type, de la liberté des associés de construire leur société conformément à leur volonté (qu'il s'agisse de la géographie du capital social et de l'encadrement du fonctionnement de l'organe de gestion) et du support juridique apporté à l'organe de gestion favorisant la bonne gouvernance des SARL et des SAS et le contrôle des associés. Cette étude compare les SARL et la SAS avec la Company dans le but de permettre au droit français des sociétés de développer une société outil adaptée aux acteurs économiques contemporains et au service de l'efficacité économique recherchée par les pouvoirs publics. / Observing Hong Kong private companies with liability limited by shares (hereafter "Company") evolving in the Common Law system was a rewarding experience: efficiency and simplicity and safety are the main features of Companies that come to mind. Looking at French SARL and SAS gives quite a different picture: laws and orders are overabundant, legal and administrative requirements constitute a burden on directors, members and directors cannot really benefit from a flexible environment as State interventionism is deeply rooted in the French legal culture. We identified various mechanisms and regulations belonging to the Company that contributed to its international success. We studied these mechanisms and regulations and understood their founding principles and significance. Then we compared them to those of the SARL and SAS in order to inspire flexibility, simplicity and supervised freedom to these two corporate bodies. The study compared the following features: the rapidity and the safety of incorporation as well as of deregistration; the freedom of the members to use model articles of association as well as adapting the suggested model; the freedom of the members to define their membership using classes of shares as well as the management of the Company's business; company secretary and certified public accountant providing corporate governance support to directors as well as information to members for their controlling role. This comparative study aims at putting forward recommendations to develop French companies as a tool for contemporary economic players and to promote company law's economic efficiency.

Le travail présenté dans cette thèse concerne la modélisation et la commande robuste en force de robots manipulateurs industriels à articulations flexibles utilisés pour le procédé FSW. Afin de réduire les temps de calcul et l'occupation de la mémoire, une approche basée sur la méthode par intervalle est proposée en vue de la simplification des modèles dynamiques des robots industriels, et contribue à identifier les paramètres d'inertie qui sont négligeables. Des études de cas sur trois types de trajectoires de test et l’analyse des couples moteurs ont démontré l'efficacité et les bonnes performances de la méthode de simplification. Ensuite, la modélisation dynamique et l'identification des paramètres du procédé FSW ont été effectuées. Les paramètres des modèles linéaires et non-linéaires de forces axiales sont identifiés. Sur la base de la modélisation du procédé FSW qui considère simultanément la cinématique du système complet, le modèle de déplacement du robot rigide, les flexibilités des articulations et le modèle dynamique de la force axiale, un contrôleur robuste en force est obtenu par la méthode de réglage fréquentielle. En outre, un simulateur du procédé FSW robotique est développé et les résultats de simulation montrent les bonnes performances du contrôleur en force. L'oscillation de la force axiale dans le procédé FSW peut être simulée en utilisant un modèle de perturbation de la position verticale de référence. / The work presented in this thesis focuses on the modeling and robust force control of flexible joints industrial robot manipulators used for FSW process. In order to reduce computation time and memory occupation, a novel interval-based approach for dynamic model simplification of industrial robots is proposed, which applies to arbitrary trajectories of whole robot workspace and contributes to obtaining negligible inertia parameters. Cases studies have been carried out on three kinds of test trajectories and torques analysis of robot dynamic equation, demonstrating the effectiveness and good performance of the simplification method. Then, the dynamic modeling and identification of robotic FSW process is performed, and the parameters of linear and nonlinear dynamic axial force process models are identified by using the plunge depth and its derivative. On the basis of the modeling of robotic FSW process which simultaneously considers the complete kinematics, the rigid robot displacement model, the joint flexibility and the dynamic axial force process model, a robust force controller can be obtained by using the frequency response approach. Besides, a simulator of robotic FSW process is developed and simulation results show good performance of the force controller. The oscillation of axial force in FSW process can be simulated when a disturbance model of initial vertical reference position is proposed and used in the simulation.

Les objets numériques 3D sont utilisés dans de nombreux domaines, les films d'animations, la visualisation scientifique, l'imagerie médicale, la vision par ordinateur.... Ces objets sont généralement représentés par des maillages à faces triangulaires avec un nombre énorme de triangles. La simplification de ces objets, avec préservation de la géométrie originale, a fait l'objet de nombreux travaux durant ces dernières années. Dans cette thèse, nous proposons un algorithme de simplification qui permet l'obtention d'objets simplifiés de grande précision. Nous utilisons des fusions de couples de sommets avec une relocalisation du sommet résultant qui minimise une métrique d'erreur. Nous utilisons deux types de mesures quadratiques de l'erreur : l'une uniquement entre l'objet simplifié et l'objet original (Accurate Measure of Quadratic Error (AMQE) ) et l'autre prend aussi en compte l'erreur entre l'objet original et l'objet simplifié ((Symmetric Measure of Quadratic Error (SMQE)) . Le coût calculatoire est plus important pour la seconde mesure mais elle permet une préservation des arêtes vives et des régions isolées de l'objet original par l'algorithme de simplification. Les deux mesures conduisent à des objets simplifiés plus fidèles aux originaux que les méthodes actuelles de la littérature. / Complex 3D digital objects are used in many domains such as animation films, scientific visualization, medical imaging and computer vision. These objects are usually represented by triangular meshes with many triangles. The simplification of those objects in order to keep them as close as possible to the original has received a lot of attention in the recent years. In this context, we propose a simplification algorithm which is focused on the accuracy of the simplifications. The mesh simplification uses edges collapses with vertex relocation by minimizing an error metric. Accuracy is obtained with the two error metrics we use: the Accurate Measure of Quadratic Error (AMQE) and the Symmetric Measure of Quadratic Error (SMQE). AMQE is computed as the weighted sum of squared distances between the simplified mesh and the original one. Accuracy of the measure of the geometric deviation introduced in the mesh by an edge collapse is given by the distances between surfaces. The distances are computed in between sample points of the simplified mesh and the faces of the original one. SMQE is similar to the AMQE method but computed in the both, direct and reverse directions, i.e. simplified to original and original to simplified meshes. The SMQE approach is computationnaly more expensive than the AMQE but the advantage of computing the AMQE in a reverse fashion results in the preservation of boundaries, sharp features and isolated regions of the mesh. For both measures we obtain better results than methods proposed in the literature.

The study adopts a theory of Descriptive Translation Studies to undertake a comparative analysis of stylistic devices in Shakespeare’s two plays, Julius Caesar and Macbeth and their Xitsonga translations. It contextualises its research aim and objectives after outlining a sequential account of theory development in the discipline of translation; and arrives at the desired and suitable tools for data collection and analysis.Through textual observation and notes of reading, the current study argues that researchers and scholars in the discipline converge when it comes to a dire need for translation strategies, but diverge in their classification and particular application for convenience in translating and translation. This study maintains that the translation strategies should be grouped into explicitation, normalisation and simplification, where each is assigned specific translation procedures. The study demonstrates that explicitation and normalisation translation strategies are best suited in dealing with translation constraints at a microtextual level. The sampled excerpts from both plays were examined on the preference for the analytical framework based on subjective sameness within a Skopos theory. The current study acknowledges that there is no single way of translating a play from one culture to the other. It also acknowledges that there appears to be no way the translator can refrain from the influence of the source text, as an inherent cultural feature that makes it unique. With no sure way of managing stylistic devices as translation constraints, translation as a problem-solving process requires creativity, a demonstration of mastery of language and style of the author of the source text, as well as a power drive characterised by the aspects of interlingual psychological balance of power and knowledge power. These aspects will help the translator to manage whatever translation brief(s) better, and arrive at a product that is accessible, accurate and acceptable to the target readership. They will also ensure that the translator maintains a balance between the two languages in contact, in order to guard against domination of one language over the other. The current study concludes that the Skopos theory has a larger influence in dealing with anticipating the context of the target readership as a factor that can introduce high risk when assessing the communicability conditions for the translated message. Contrariwise, when dealing with stylistic devices and employ literal translation as a translation procedure to simplification, the translator only aims at simplifying the language and making it accessible for the sake of ‘accessibility’ as it remains a product with communicative inadequacies. The study also concludes by maintaining that translation is not only transcoding, but the activity that calls for the translator’s creativity in order to identify and analyse the constraints encountered and decide on the corresponding translation strategies. / African Languages / D. Litt. et Phil. (African Languages)

In the world of Descriptive Translation Studies, translationese refers to the specific traits that characterise the language used in translations. While translationese has been often investigated to illustrate that translational language is different from non-translational language, scholars have also proposed a set of hypotheses which may characterise such di erences. In the quest for the validation of these hypotheses, embracing corpus-based techniques had a well-known impact in the domain, leading to several advances in the past twenty years. Despite extensive research, however, there are no universally recognised characteristics of translational language, nor universally recognised patterns likely to occur within translational language. This thesis addresses these issues, with a less used approach in the eld of Descriptive Translation Studies, by investigating the nature of translational language from a machine learning perspective. While the main focus is on analysing translationese, this thesis investigates two related sub-hypotheses: simplication and explicitation. To this end, a multilingual learning framework is designed and implemented for the identification of translational language. The framework is modelled as a categorisation task, the learning techniques having the major goal to automatically learn to distinguish between translated and non-translated texts. The second and third major goals of this research are the retrieval of the recurring patterns that are revealed in the process of solving the task of categorisation, as well as the ranking of the most in uential characteristics used to accomplish the learning task. These aims are ful lled by implementing a system that adopts the machine learning methodology proposed in this research. The learning framework proves to be an adaptable multilingual framework for the investigation of the nature of translational language, its adaptability being illustrated in this thesis by applying it to the investigation of two languages: Spanish and Romanian. In this thesis, di erent research scenarios and learning models are experimented with in order to assess to what extent translated texts can be diff erentiated from non-translated texts in certain contexts. The findings show that machine learning algorithms, aggregating a large set of potentially discriminative characteristics for translational language, are able to diff erentiate translated texts from non-translated ones with high scores. The evaluation experiments report performance values such as accuracy, precision, recall, and F-measure on two datasets. The present research is situated at the con uence of three areas, more precisely: Descriptive Translation Studies, Machine Learning and Natural Language Processing, justifying the need to combine these elds for the investigation of translationese and translational hypotheses.

No description available.

A grande capacidade de disponibilização de informações que a Web possibilita se traduz em múltiplas possibilidades e oportunidades para seus usuários. Essas pessoas são capazes de acessar conteúdos provenientes de todas as partes do planeta, independentemente de onde elas estejam. Mas essas possibilidades não são estendidas a todos, sendo necessário mais que o acesso a um computador e a Internet para que sejam realizadas. Indivíduos que apresentem necessidades especiais (deficiência visual, cognitiva, dificuldade de locomoção, entre outras) são privados do acesso a sites e aplicações web que façam mal emprego de tecnologias web ou possuam o conteúdo sem os devidos cuidados para com a acessibilidade. Um dos grupos que é privado do acesso a esse ambiente é o de pessoas com dificuldade de leitura (analfabetos funcionais). A ampla utilização de recursos textuais nas aplicações pode tornar difícil ou mesmo impedir as interações desses indivíduos com os sistemas computacionais. Nesse contexto, este trabalho tem por finalidade o desenvolvimento de tecnologias assistivas que atuem como facilitadoras de leitura e compreensão de sites e aplicações web a esses indivíduos (analfabetos funcionais). Essas tecnologias assistivas utilizam recursos de processamento de língua natural visando maximizar a compreensão do conteúdo pelos usuários. Dentre as técnicas utilizadas são destacadas: simplificação sintática, sumarização automática, elaboração léxica e reconhecimento das entidades nomeadas. Essas técnicas são utilizadas com a finalidade de promover a adaptação automática de conteúdos disponíveis na Web para usuários com baixo nível de alfabetização. São descritas características referentes à acessibilidade de aplicações web e princípios de design para usuários com baixo nível de alfabetização, para garantir a identificação e entendimento das funcionalidades que são implementadas nas duas tecnologias assistivas resultado deste trabalho (Facilita e Facilita Educacional). Este trabalho contribuiu com a identificação de requisitos de acessibilidade para usuários com baixo nível de alfabetização, modelo de acessibilidade para automatizar a conformidade com a WCAG e desenvolvimento de soluções de acessibilidade na camada de agentes de usuários / The large capacity of Web for providing information leads to multiple possibilities and opportunities for users. The development of high performance networks and ubiquitous devices allow users to retrieve content from any location and in different scenarios or situations they might face in their lives. Unfortunately the possibilities offered by the Web are not necessarily currently available to all. Individuals who do not have completely compliant software or hardware that are able to deal with the latest technologies, or have some kind of physical or cognitive disability, find it difficult to interact with web pages, depending on the page structure and the ways in which the content is made available. When specifically considering the cognitive disabilities, users classified as functionally illiterate face severe difficulties accessing web content. The heavy use of texts on interfaces design creates an accessibility barrier to those who cannot read fluently in their mother tongue due to both text length and linguistic complexity. In this context, this work aims at developing an assistive technologies that assists functionally illiterate users during their reading and understanding of websites textual content. These assistive technologies make use of natural language processing (NLP) techniques that maximize reading comprehension for users. The natural language techniques that this work uses are: syntactic simplification, automatic summarization, lexical elaboration and named entities recognition. The techniques are used with the goal of automatically adapting textual content available on the Web for users with low literacy levels. This work describes the accessibility characteristics incorporated into both resultant applications (Facilita and Educational Facilita) that focus on low literacy users limitations towards computer usage and experience. This work contributed with the identification of accessibility requirements for low-literacy users, elaboration of an accessibility model for automatizing WCAG conformance and development of accessible solutions in the user agents layer of web applications

Made available in DSpace on 2016-04-26T20:22:02Z (GMT). No. of bitstreams: 1 Luiz Fernando Roberto.pdf: 522268 bytes, checksum: fd68be62a269f8d849fe35be941fee65 (MD5) Previous issue date: 2013-10-08 / This paper aims to describe the normative framework that regulates agreements with private entities and their recent movements. From the construction of a critical view on the matter, the estudy discusses the core ideas that base traditional forms of selection of the private partner and the restrictions to internal management of entities. Pointing lack of objectivity and excessive cost in the existing system, the paper proposes a new theoretical approach to the matter, in which planning and administrative simplification can be used as tools for a more effective control over public resources transferred by the Estate / O presente trabalho tem por objetivo descrever a estrutura normativa que regula os convênios com entidades privadas e seus recentes movimentos. A partir da construção de uma visão crítica sobre a matéria, o trabalho questiona as ideais centrais que servem de base para as formas tradicionais de seleção do parceiro privado e para as normas dirigidas a restringir a gestão interna das entidades. Apontando falta de objetividade e custo excessivo no sistema existente, o trabalho propõe um novo enfoque teórico para a matéria, no qual o planejamento e a simplificação administrativa sirvam de instrumentos para um controle mais eficaz sobre os recursos públicos repassados pelo Estado