Villeneuve-d'Ascq, France

Charles de Gaulle University - Lille 3
Villeneuve-d'Ascq, France

The Charles de Gaulle University – Lille III is a French university. Since 1974, the main campus of University of Lille III is located in Villeneuve d'Ascq in southern Lille, at Pont de Bois metro station, and includes 21,000 students.University of Lille III inherits from the humanities taught for centuries in Lille area and referred to as the humanities from Université de Douai, established in 1562 and located 25 km away from the present modern campus. Since 1970, science and technologies are taught in an independent campus of Université de Lille I - USTL, while law, management, sports and health faculties are part of the independent campus of Université de Lille II. Altogether, the universities of Lille include more than 90,000 students and 3,000 PhD Doctorate students supported by university research laboratories. Wikipedia.

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Germain M.,Charles de Gaulle University - Lille 3
Ecological Economics | Year: 2017

This paper introduces a natural resource and pollution in a Ramsey growth model which relies on the postulates of ecological economics. It studies the impact of voluntary degrowth policies on production and welfare. The instrument of these policies is a tax on the natural resource. These public policies are implemented after the downturn of the households’ welfare following from the increased pollution. Two kinds of policies are considered and rely either on an optimality criterion or on an intergenerational equity criterion. With respect to the laissez-faire case, they decrease both production and pollution but increase welfare. Classes of sustainable degrowth paths characterized by time-constant or time-increasing tax rates are determined. © 2017 Elsevier B.V.

Hamon T.,University Paris - Sud | Hamon T.,University of Paris 13 | Grabar N.,Charles de Gaulle University - Lille 3 | Mougin F.,French Institute of Health and Medical Research
Semantic Web | Year: 2017

Recent and intensive research in the biomedical area enabled to accumulate and disseminate biomedical knowledge through various knowledge bases increasingly available on the Web. The exploitation of this knowledge requires to create links between these bases and to use them jointly. Linked Data, the SPARQL language and interfaces in natural language question answering provide interesting solutions for querying such knowledge bases. However, while using biomedical Linked Data is crucial, life-science researchers may have difficulties using the SPARQL language. Interfaces based on natural language question answering are recognized to be suitable for querying knowledge bases. In this paper, we propose a method for translating natural language questions into SPARQL queries. We use Natural Language Processing tools, semantic resources and RDF triple descriptions. We designed a four-step method which allows to linguistically and semantically annotate questions, to perform an abstraction of these questions, then to build a representation of the SPARQL queries, and finally to generate the queries. The method is designed on 50 questions over three biomedical knowledge bases used in the task 2 of the QALD-4 challenge framework and evaluated on 27 new questions. It achieves good performance with 0.78 F-measure on the test set. The method for translating questions into SPARQL queries is implemented as a Perl module and is available at∼thhamon/RDF-NLP-SPARQLQuery/. © 2017-IOS.

Boussemart J.-P.,Charles de Gaulle University - Lille 3 | Leleu H.,French National Center for Scientific Research | Ojo O.,French National Center for Scientific Research
Ecological Economics | Year: 2011

In the context of approximately 50% reduction in pesticide treatment according to the agreement of the "Grenelle de l'environnement" in France, the main part of this study involves the assessment of intensification or extensification of pesticide use in crop activities. This is done with reference to its use per ha thereby helping to proffer a solution to the persistent questions of farmers with regard to the use of inputs in an intensified manner or otherwise. With respect to this, a sample of 600 farms in the Meuse department was observed over a 12-year period. The analysis is essentially to assess cost efficiency dominance between technologies using non-parametric cost-functions which involves different levels of pesticide use per ha. Our empirical application shows that less intensive processes in terms of pesticide level per ha are a better option not only for the society but also for the producers who could significantly reduce their costs in 80% of cases. © 2011 Elsevier B.V.

Dhanjal C.,University Pierre and Marie Curie | Gaudel R.,Charles de Gaulle University - Lille 3 | Clemencon S.,Telecom ParisTech
Neurocomputing | Year: 2014

Partitioning a graph into groups of vertices such that those within each group are more densely connected than vertices assigned to different groups, known as graph clustering, is often used to gain insight into the organisation of large scale networks and for visualisation purposes. Whereas a large number of dedicated techniques have been recently proposed for static graphs, the design of on-line graph clustering methods tailored for evolving networks is a challenging problem, and much less documented in the literature. Motivated by the broad variety of applications concerned, ranging from the study of biological networks to the analysis of networks of scientific references through the exploration of communications networks such as the World Wide Web, it is the main purpose of this paper to introduce a novel, computationally efficient, approach to graph clustering in the evolutionary context. Namely, the method promoted in this article can be viewed as an incremental eigenvalue solution for the spectral clustering method described by Ng et al. (2001) [25]. The incremental eigenvalue solution is a general technique for finding the approximate eigenvectors of a symmetric matrix given a change. As well as outlining the approach in detail, we present a theoretical bound on the quality of the approximate eigenvectors using perturbation theory. We then derive a novel spectral clustering algorithm called Incremental Approximate Spectral Clustering (IASC). The IASC algorithm is simple to implement and its efficacy is demonstrated on both synthetic and real datasets modelling the evolution of a HIV epidemic, a citation network and the purchase history graph of an e-commerce website. © 2014 Elsevier B.V.

Chebana F.,INRS ETE | Dabo-Niang S.,Charles de Gaulle University - Lille 3 | Ouarda T.B.M.J.,INRS ETE | Ouarda T.B.M.J.,Masdar Institute of Science and Technology
Water Resources Research | Year: 2012

The prevention of flood risks and the effective planning and management of water resources require river flows to be continuously measured and analyzed at a number of stations. For a given station, a hydrograph can be obtained as a graphical representation of the temporal variation of flow over a period of time. The information provided by the hydrograph is essential to determine the severity of extreme events and their frequencies. A flood hydrograph is commonly characterized by its peak, volume, and duration. Traditional hydrological frequency analysis (FA) approaches focused separately on each of these features in a univariate context. Recent multivariate approaches considered these features jointly in order to take into account their dependence structure. However, all these approaches are based on the analysis of a number of characteristics and do not make use of the full information content of the hydrograph. The objective of the present work is to propose a new framework for FA using the hydrographs as curves: functional data. In this context, the whole hydrograph is considered as one infinite-dimensional observation. This context allows us to provide more effective and efficient estimates of the risk associated with extreme events. The proposed approach contributes to addressing the problem of lack of data commonly encountered in hydrology by fully employing all the information contained in the hydrographs. A number of functional data analysis tools are introduced and adapted to flood FA with a focus on exploratory analysis as a first stage toward a complete functional flood FA. These methods, including data visualization, location and scale measures, principal component analysis, and outlier detection, are illustrated in a real-world flood analysis case study from the province of Quebec, Canada. © 2012 by the American Geophysical Union.

Boissiere A.,Charles de Gaulle University - Lille 3
Cliniques Mediterraneennes | Year: 2016

This article envisages improvisation with respect to the free drawings of Marion Milner, which provide the main matter of her book On not being able to paint. It particularly examines the spontaneous movement of the hand, in the way it shapes living forms. To do this, it considers the field of phenomenology and formulates the hypothesis of the «pathic », as the term is introduced by Erwin Straus and taken up by Frederic Buytendijk. It aims to be a contribution to a theory of playing which crosses psychoanalytics and phenomenology.

Depraetere I.,Charles de Gaulle University - Lille 3
Journal of Pragmatics | Year: 2014

This paper presents a framework for the analysis of the meaning of modals which builds on key concepts from recent research on the semantics/pragmatics interface, in particular saturation, and on insights from lexical semantics; it is based on extensive data analysis, may and must serving as a test case. It is argued that a layered account in terms of context-independent semantics, context-dependent semantics (resulting from lexically-regulated saturation) and pragmatic meaning is needed to capture all the meaning distinctions communicated by modal verbs. While embedded in insights from Contextualism and compatible with approaches in formal semantics, the paper argues that the context-dependent semantic layer needs to be defined in a more explicit and more rigorous fashion and it shows how this aim can be achieved. © 2014 Elsevier B.V.

Kalenine S.,Moss Rehabilitation Research Institute | Kalenine S.,Charles de Gaulle University - Lille 3 | Mirman D.,Moss Rehabilitation Research Institute | Buxbaum L.J.,Moss Rehabilitation Research Institute
Frontiers in Human Neuroscience | Year: 2012

Semantic knowledge may be organized in terms of similarity relations based on shared features and/or complementary relations based on co-occurrence in events. Thus, relationships between manipulable objects such as tools may be defined by their functional properties (what the objects are used for) or thematic properties (e.g., what the objects are used with or on). A recent study from our laboratory used eye-tracking to examine incidental activation of semantic relations in a word-picture matching task and found relatively early activation of thematic relations (e.g., broom-dustpan), later activation of general functional relations (e.g., broom-sponge), and an intermediate pattern for specific functional relations (e.g., broom-vacuum cleaner). Combined with other recent studies, these results suggest that there are distinct semantic systems for thematic and similarity-based knowledge and that the "specific function" condition drew on both systems. This predicts that left hemisphere stroke that damages either system (but not both) may spare specific function processing. The present experiment tested these hypotheses using the same experimental paradigm with participants with left hemisphere lesions (N = 17). The results revealed that, compared to neurologically intact controls (N = 12), stroke participants showed later activation of thematic and general function relations, but activation of specific function relations was spared and was significantly earlier for stroke participants than controls. Across the stroke participants, activation of thematic and general function relations was negatively correlated, further suggesting that damage tended to affect either one semantic system or the other. These results support the distinction between similarity-based and complementarity-based semantic relations and suggest that relations that draw on both systems are relatively more robust to damage. © 2012 Kalénine, Mirman and Buxbaum.

Rivens Mompean A.,Charles de Gaulle University - Lille 3
ReCALL | Year: 2010

The use of a blog as a pedagogical aid for the learning of foreign languages is gaining support among teachers communities (Soubrié, 2006; Tomé, 2007) as it can help students develop online interactions and authentic productions. The current study is analysing the use of such a multimedia setting in a group of Masters students in France, studying English as a Foreign Language, who had to keep a blog in groups of three or four, dealing with a specific topic of their interest. The introduction of such a tool was meant to motivate learners to practise written expression with an added value: the authenticity of the posted message, aimed not only at the teacher and the learning community but also made visible to the outside world. The aim of this article is to measure the pedagogical added value of such a blog for the development of written expression more specifically, and to see the potential to transform a real activity which is well-known to the younger learners community1 into a learning activity for the learning of English. The aims are in agreement with the principles of the Common European Framework of References for Languages (Council of Europe, 2001), which establishes specific goals for language learners with the implementation of ICT: task-based learning, authentic interactions or collaborative learning (Wenger, 1998). Three main aspects have been considered in this article: (i) a description of the way the interactions take place on the blog; (ii) an analysis of the motivating factors for such a publication online; (iii) reflection on the role of the tutor and on the place for feedback. A quantitative analysis of the interactions shows that the project is quite successful in terms of participation, as there are more posts on average than required in the pedagogical contract. Yet there are some disparities, concerning the level of activity from one blog to another and among the participants, that can be related to the role they undertake within the blog (do they prefer to post messages or comments, who are these for and why are they posted?) and to their level of motivation. Qualitatively, the project is also positively perceived: although the blog is not considered as a real-life one (the activity is perceived as a pedagogical one), the interactions are meaningful because they make sense for the learners who are fully engaged in the writing process and in the interactions. Finally, the place for feedback needs to be discussed, as the corrections online, although described as necessary, are also very often perceived as inhibiting and appear to be a critical element of the project. © 2010 European Association for Computer Assisted Language Learning.

Regnard N.,Charles de Gaulle University - Lille 3 | Zakoian J.-M.,CREST and FIME
Energy Economics | Year: 2011

This paper examines the relationship between gas spot prices at the Zeebrugge market, one-month ahead Brent prices and temperatures over the period 2000-2005. A cointegration analysis is carried out and it is discovered that a cointegration relationship exists between the three series. To take into account the influence of temperature on the gas volatility, a GARCH(1,1) model with temperature-dependent coefficients is considered. Stability and estimation properties are discussed. An empirical finding is the existence of distinct volatility regimes for the volatility of gas prices, depending on the temperature level. © 2011 Elsevier B.V.

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