Gephi

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. 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 Gephi is a the forefront of innovation with dynamic graph analysis. Create cartography Dynamic filtering Input/Output

9 Best Free Image Editors Adobe Photoshop may be dominant among industry professionals, but the software can be daunting for beginners and amateurs who just want to touch up the occasional photo. There are many simpler, easier-to-use alternatives to Photoshop, some of which offer features the latter does not. Plus, many image editors don't have the hefty sticker price of Adobe products. We rounded up nine free image editors that range from basic programs with plenty of filters to near professional-grade software for pixel-to-pixel editing. Check out the gallery and let us know if we missed any of your favorites in the comments below. Image: Flickr, Marty.fm. Télécharger Gephi Gephi is an open-source and multiplatform software distributed under the dual license CDDL 1.0 and GNU General Public License v3. Official Releases Release Notes | System Requirements | Installation instructions Gephi 0.9.2 is the latest stable release. Download Gephi for LinuxVersion 0.9.2 If you have an older Gephi on your computer, you should uninstall it first, see the installation instructions. All downloads:Download Gephi 0.9.2 for Mac OS XDownload Gephi 0.9.2 for WindowsDownload Gephi 0.9.2 for LinuxDownload Gephi 0.9.2 sourcesDownload Older Versions Sources: Gephi uses GitHub to host the source code and track issues. Localization Localization is available in French, Spanish, Japanese, Brazilian Portuguese, Russian, Chinese, Czech and German. Data sets Web/Internet, Social Networks, Biological Networks, Infrastructures and others… If you are looking for data samples to test Gephi, look at the wiki. Learn how to use Gephi Thank you for your support!

International Programs - Region Summary Processing Request Frequently Asked Questions (FAQ) 1. What is the International Data Base? The International Data Base (IDB) offers a variety of demographic indicators for countries and areas of the world with a population of 5,000 or more. 2. The IDB provides many types of demographic data, including: · Estimates and projections of: o Birth, death, and growth rates, migration rates, infant mortality, and life expectancy o Fertility rates o Total population and population by age and sex 3. The following ZIP file contains the complete data set which has currently been released and is used by the International Data Base tool. 4. The demographic estimates and projections found in the International Data Base are the result of over 30 years of analysis of census, survey, vital statistics, and other data by Census Bureau demographers. 5. The Data Access page allows you to get information on these topics by country or region. Additional help can be found on our IDB Help page. 6. 7. 8. 9. 10.

Fabrica Cartographier avec Gephi Aujourd’hui, je vais vous présenter un outil très puissant d’analyse de l’information, le logiciel Gephi. Cet outil va vous permettre de représenter sous forme de cartographie des données brutes et de les analyser. Les experts disent que cet outil est à l’analyse de l’information ce que Photoshop est à la retouche d’image : C’est un outil complexe, mais donnant des résultats impressionnants. Gephi est encore assez peu connu en France, et qui est utilisé par des experts en entreprise. Les informations disponibles sur son fonctionnement sont assez peu nombreuses, et j’ai eu du mal à réunir les éléments que je vais vous présenter aujourd’hui. Mon objectif est donc de vous présenter cet outil en le simplifiant au maximum et en centralisant les informations qui vous seront nécessaires pour l’utiliser. Pour avoir un exemple complet et expliqué, vous pouvez directement lire l’exemple sur Facebook J’espère que cet article va vous plaire, et je vous invite à le partager sur vos réseaux favoris.

Creating A Database Table From A Summary Table Category: General | [Item URL] Many users are familiar with Excel's pivot table feature, which creates a summary table from a database table. But what if you want to perform the opposite operation? This document describes how to create a database table from a simple two-variable summary table. The worksheet below demonstrates. Range A1:E13 contains the original summary table, and columns G:I shows a 48-row database table derived from the summary table. How to do it The solution to creating this "reverse pivot table" is to use a pivot table! Part 1: Creating a pivot table Activate any cell in your summary table Choose Data - PivotTable and PivotChart Report (the menu command may vary, depending on the version of Excel). Part 2: Finishing up At this point, you will have a small pivot table that shows only the sum of all values: Double-click the cell that contains the total (outlined in yellow, above). A VBA Macro to do it Excel Tips All Tips Browse Tips by Category Search for Tips Tip Books

The Official ImgBurn Website Analyser graphiquement son réseau facebook Gephi est un outil puissant de modélisation de réseaux qui a également l’avantage de sa grande simplicité : pas besoin de compétences particulières pour l’utiliser, excepté une certaine curiosité ! Cet outil est utilisés dans de nombreuses recherches, raison pour laquelle j’en propose ici un guide adapté à une large audience. Ce tutoriel, basé sur vos propres données facebook, peut évidemment être utilisé à d’autres fins, avec de nombreux types de données. MISE A JOUR : Une version ultérieure de ce tutoriel a été publiée. Table des matières Préalable, une petite introduction à l’analyse de réseaux sociauxTélécharger ses données depuis facebook 3. 1. Pour produire un réseau, deux informations sont nécessaires: une liste des acteurs composant le réseau et une liste des relations entre ces acteurs. 2. Cette étape n’est évidemment pas nécessaire à celles et ceux qui utilisent ce tutoriel pour produire un graphe à partir d’autres données 3. Ouvrez votre fichier .txt dans un tableur. 4. 5. 6.

Blog Archive » Data-Mining My Old Radio Playlists In which I scrape all my old radio playlists off the web, cook them with Python, Google Refine and PostgreSQL, and discover that I played one heck of a long tail of songs. And J.J. Cale. A friend from the Ann Arbor years was in town for a conference, and it put me in mind of my radio days. I was wondering that, and I also happen to have a lot of idle time at night while I’m on sleeping-baby-monitoring duty. Scraping the Webpages with Python The first step was to actually get all that data from the web, preferably in some more data-like format than raw HTML. Python has built in capabilities for connecting to a website and getting the HTML, but navigating the raw HTML tags for useful info sounds like a terrible idea. Here’s the Python code I wrote for the web scraping job. The script starts by connecting to hughstimson.org/projects/djhugo/ and scanning for individual podcast episodes. De-Duping in Google Refine Here’s the output: Analysis in PostgreSQL

c'est en 2D mais il semble que le 2D est beaucoup plus courant/développé, et j'ai lu des gens qui disaient que la visualisation en 3D n'était pas forcément mieux by math_lep Feb 1