23/02/2017 @ 11h00 – 12h00 – How to calculate the barycenter of a (large) graph?. This talk aims to describe an algorithm for locating the barycenter of discrete structures like weighted graphs. Such structures are commonly used for database description, or for modeling internet communication modeling, road or airline traffic, etc. The computation of this kind of structure, for a possibly […]
23/02/2017 @ 11h00 – 12h00 – How to calculate the barycenter of a (large) graph?. This talk aims to describe an algorithm for locating the barycenter of discrete structures like weighted graphs. Such structures are commonly used for database description, or for modeling internet communication modeling, road or airline traffic, etc. The computation of this kind of structure, for a possibly […]
12/01/2017 – 26/01/2017 @ 11h00 – 12h00 – Bandits antagonistes à K bras : un problème d’apprentissage séquentiel avec garanties de robustesse. Dans cet exposé, nous aborderons le problème de bandits à K bras dits « antagonistes », i.e., lorsque aucune hypothèse n’est faite sur la suite des gains délivrés. Ce point de vue « pire des cas » permet d’apporter des garanties de robustesse, ainsi que […]
12/01/2017 @ 11h00 – 12h00 – Adversarial multi-armed bandits: an online-learning problem with robustness guarantees. In this talk we address the so-called « adversarial » multi-armed bandit problem, where no assumption is made on the sequence of payoffs received by the learner. This worst-case viewpoint provides robustness guarantees, together with online techniques for automatic parameter tuning. We will first introduce the classical bandit […]
16/12/2016 – 17/12/2016 @ 9h00 – 16h00 – 27th (EC)² Conference on Big Data, Manufacture des Tabacs, Building S, Toulouse, France: Toulouse School of Economics, December 16–17, 2016, room Auditorium MS001 . The 27th (EC)² Conference will be held in Toulouse, France, December 16-17, 2016. As Chair of the Local Organizing Committee, I cordially invite you to attend. The final program will be available […]
16/12/2016 – 17/12/2016 @ 9h00 – 16h00 – 27th (EC)² Conference on Big Data, Manufacture des Tabacs, Building S, Toulouse, France: Toulouse School of Economics, December 16–17, 2016, room Auditorium MS001 . The 27th (EC)² Conference will be held in Toulouse, France, December 16-17, 2016. As Chair of the Local Organizing Committee, I cordially invite you to attend. The final program will be available […]
08/12/2016 @ 11h15 – 12h15 – Détection d’anomalies dans des bases fiscales. Les revenus fiscaux, comme la taxe d’habitation, représentent en France une part notable des ressources des collectivités. Ces revenus reposent principalement sur des déclarations des particuliers concernant leurs logements, qui sont régulièrement erronées. Vérifier la véracité de ces déclarations est donc un enjeu majeur. L’objectif est de guider les […]
08/12/2016 @ 11h15 – 12h15 – Outliers detection in tax bases. Tax revenues, such as housing tax, represent a significant proportion of the resources of local and regional authorities in France. These incomes are mainly based on spontaneous statements by individuals about their own dwellings, which are regularly erroneous. To verify the veracity of these declarations is therefore a major issue. […]
24/11/2016 @ 11h15 – 12h15 – Flight Delay, Horizontal Product Differentiation and Airline Network. This paper investigates the dual roles of flight delay and horizontal product differentiation in airline network choice. A particular feature of this paper is the incorporation of all possible network structures in a three-city network, including a hub-and-spoke network (HS), point-to-point network (PP), mixed network (MX), 2-hub […]
24/11/2016 @ 11h15 – 12h15 – Flight Delay, Horizontal Product Differentiation and Airline Network. This paper investigates the dual roles of flight delay and horizontal product differentiation in airline network choice. A particular feature of this paper is the incorporation of all possible network structures in a three-city network, including a hub-and-spoke network (HS), point-to-point network (PP), mixed network (MX), 2-hub […]