Search results for "Networks"
showing 10 items of 3260 documents
Modèle tensoriel pour l'entreposage et l'analyse des données des réseaux sociaux Application à l'étude de la viralité sur Twitter
2018
International audience; Dans cet article, nous montrons comment la notion de tenseur permet de construire un modèle multi-paradigmes pour l'entreposage des données sociales. D'un point de vue architecture , cette approche permet de lier différents systèmes de stockage (polystore) et de limiter l'impact des outils ETL réalisant les transformations de modèles pour alimenter différents al-gorithmes d'analyse. Ainsi, le modèle proposé permet d'assurer l'indépendance logique entre les données et les programmes implantant les algorithmes d'analyse. Avec un cas concret ex-trait d'une étude de la viralité sur Twitter durant la période de l'entre deux tours de l'élection présidentielle française de …
Temporal density of complex networks and ego-community dynamics
2016
International audience
Investigating the Relationship Between Community-aware and Classical Centrality Measures
2021
International audience
An Empirical Comparison of Centrality and Hierarchy Measures in Complex Networks
2020
International audience
Assessing the Relationship Between Centrality and Hierarchy in Complex Networks
2020
International audience
Hierarchy and Centrality: Two Sides of The Same Coin?
2020
International audience
Classical versus Community-aware Centrality Measures: An Empirical Study
2021
International audience
Evolutionary-based 3D reconstruction using an uncalibrated stereovision system: application of building a panoramic object view
2010
In this paper, we propose an original evolutionary-based method for 3D panoramic reconstruction from an uncalibrated stereovision system (USS). The USS is composed of five cameras located on an arc of a circle around the object to be analyzed. The main originality of this work concerns the process of the calculation of the 3D information. Actually, with our method, 3D coordinates are directly obtained without any prior estimation of the fundamental matrix. The method operates in two steps. Firstly, points of interest are detected in pairs of images acquired by two consecutive cameras of the USS are matched. And secondly, using evolutionary algorithms, we jointly compute the transformed matr…
Hybrid QoS Based Routing for IEEE 802.16j Mesh Infrastructure
2014
Acceptance rate: 29%; International audience; With the growth of wireless networks, Wireless Mesh Network (WMN) has appeared as an emerging key solution for broadband Internet access with a low-cost deployment. Moreover, providing QoS guarantees for real-time and streaming applications such as VoIP (Voice over IP) and VoD (Video on Demand) is a challenging issue in such environment. In this paper, we propose a hybrid wireless mesh architecture to provide mesh clients with Internet access while guaranteeing QoS. It is formed by an IEEE 802.16j based infrastructure and several IEEE 802.11s based client domains. A lustering algorithm is developed to enhance scalability issues within the mesh i…
Methods for registering a mobile terminal by means of an ip network access router, for managing the mobility of a terminal in an ip network, and for …
2011
The invention relates to methods for registering a mobile terminal by means of an IP network access router, for managing the mobility of a terminal in an IP network, and for configuring a mobile terminal. The invention proposes to assign a multicast group identifier solely to an IP network mobile terminal. Said multicast group identifier enables the creation of: a multicast address that acts a regional temporary IP address of the mobile terminal and is registered with the home agent thereof; and a multicast tree that associated with the multicast address to which the access routers of a remote network, visited by the terminal, subscribe in order to receive the data packets intended for the …