Features Gephi is a tool for data analysts and scientists keen to explore and understand graphs. Like Photoshop™ but for graph data, the user interacts with the representation, manipulate the structures, shapes and colors to reveal hidden patterns. The goal is to help data analysts to make hypothesis, intuitively discover patterns, isolate structure singularities or faults during data sourcing. It is a complementary tool to traditional statistics, as visual thinking with interactive interfaces is now recognized to facilitate reasoning. This is a software for Exploratory Data Analysis, a paradigm appeared in the Visual Analytics field of research. Real-time visualization Profit from the fastest graph visualization engine to speed-up understanding and pattern discovery in large graphs. Layout Layout algorithms give the shape to the graph. Metrics The statistics and metrics framework offer the most common metrics for social network analysis (SNA) and scale-free networks. Networks over time Input/Output
Zyvon - Service gratuit d'organisation d'invitations en ligne interactives Hiding IP Addresses Online - What Method Works Best? Numerous Internet proxy servers offer anonymous Web browsing capability. Accessing Web sites via these proxies hides your public IP address from Web servers, helping to protect your identity online. Anonymizing proxies often work as designed, but the approach suffers from some inherent technical limitations. As an alternative, some people install special programs on their computers that also can hide their IP address (and other identifying information) through the local software instead of relying on an external server. Do you use an anonymizing proxy and/or utility program to hide your IP? What Method Do You Use? Use a free VPN service A VPN (Virtual Private Network) seems to offer a higher level of anonymity and encryption than a proxy which is Web-based. —Guest VeePeeN What anonymity service do you use? I query hidemyass.com to find free proxies which I test them to be sure they are good. —Guest Tinel Barb Never use Hidemyip I am working for a digital marketing company. —Guest Bhupesh
Login Dossiers technopédagogiques Ce dossier traite des usages possibles de logiciels de construction de cartes de connaissances à des fins d’apprentissage dans un cadre de formation universitaire ou de formation continue. Ces logiciels permettent à l’étudiant de représenter graphiquement un ensemble de connaissances sous forme d’un réseau de nœuds et d’arcs. Le dossier présente quelques logiciels dédiés à la construction de cartes de différents types, mais surtout une revue de stratégies d’enseignement intégrant ces outils ainsi que quelques conseils pour les planifier. Enfin, il résume les principaux avantages et difficultés de la construction des cartes de connaissances au plan cognitif. This article examines the possible uses of concept mapping software in a university or continuing education context. Concept mapping applications allow the student to graphically represent compiled information as a network of nodes and vectors.
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Un sens caché se dévoile OWNI a récemment publié un article, Le sens caché des discours, dans lequel nous remarquions que l’utilisation de logiciels d’analyse lexicale sur les discours des candidats à la présidentielle de 2007 apportait son lot de surprises. Nous avons eu beaucoup de retours et de commentaires sur cet article, notamment ceux – légitimes – désirant obtenir des précisions sur la manière dont nous avions opéré, tant sur la méthodologie que sur la méthode ou les outils utilisés. Paule d’Atha revient sur ces différents points, en dévoilant d’abord une partie un peu technique, puis dans un deuxième temps (voir plus bas) une partie plus “abordable” réservée à l’interprétation. Présentation de la méthode Un glossaire marketing indique que le “text mining est une technique statistique permettant d’automatiser le traitement de gros volumes de contenus texte pour en extraire les principales tendances et répertorier de manière statistique les différents sujets évoqués.” Cadre d’analyse Les axes Quelques mots
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