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En Russie, une carte participative pour dénoncer la fraude électorale. Le 13 septembre, plusieurs millions de Russes sont appelés aux urnes pour élire leurs représentants locaux.

En Russie, une carte participative pour dénoncer la fraude électorale

Les luttes environnementales ont désormais leur atlas. Vous n’avez jamais vu l’économie mondiale comme ça. History-of-web-browser-popularity-since-2008-2015-8?utm_content=buffer8a92b&utm_medium=social&utm_source=twitter. Ashley-madison-almost-no-women-2015-8?utm_content=buffer13537&utm_medium=social&utm_source=twitter. Thalys : le FN, champion de la récup sur Twitter.

11 Awesome Data Visualizations. Expressing data visually makes it much easier to understand, and in our data-saturated world, data visualization has become a necessity.

11 Awesome Data Visualizations

This infographic from Invest in Tech shows how the evolution of data visualization starting with one of the earliest maps of the world. “A single data visualization graphic can be priceless. It can save you hours of research,” according to Invest in Tech. “They’re easy to read, interpret, and, if based on the right sources, accurate, as well. And with the highly social nature of the web, the data can be lighthearted, fun and presented in so many different ways.” Check out these cool visualizations, including the first world map created by Anaximander, the “Catalan atlas commissioned by King Charles V of France, Dr. Introducing the Search Analytics API. This-one-map-explains-the-entire-worldwide-economy-2015-7?utm_content=buffer821fc&utm_medium=social&utm_source=twitter. L'Atelier de Cartographie. Un premier billet de Mathieu Jacomy sur le nouveau blog de Gephi daté de février 2015 nous avait averti du réveil probable du projet.

L'Atelier de Cartographie

En sommeil pendant plus de deux années, le projet est de nouveau officiellement réactivé: « Gephi has been almost inactive since quite a long time: we did not release, we did not fix issues, we did not post on the blog. This lack of recent updates creates an increasing amount of difficulties, including installing Gephi on a recent Mac computer. A lot of users ask if the project is still alive. Social Networks and the Majority Illusion. Via Shutterstock MIT Technology Review has a summary of a fascinating recent study on the behavior of networks, and how they can lie to us, or at least make it seem like a majority of people believe something is common when it is not actually the case.

Social Networks and the Majority Illusion

The study, conducted by Kristina Lerman and others at the University of Southern California, also provides insight into how some things can go viral and spread like wildfire while similar content or ideas can't seem to get off the ground. Basically, the study examined how ideas spread on networks with complex connections. If a number of people who have an average or lower number of connections (Facebook friends, Twitter followers, etc.) post or share something, it probably won't go very far, because of the lack of connections.

But, if a few of the people who have a very large number of connections share or post something, it is far more likely to spread. The article gives the example of a network of 14 people. Create Professional Diagrams & Charts with These 6 Free Tools. We’ve looked at how to use online tools to create databases, edit images, and improve your productivity – but something we’ve never investigated is how to create professional diagrams and charts by using nothing more than an Internet connection.

Create Professional Diagrams & Charts with These 6 Free Tools

Contrary to popular belief, diagrams and charts are not solely the domain of office workers and people in the business world. In fact, there are all sorts of reasons you might want to create professional-looking illustrations – no matter what your vocation, you’re almost certain to have the need for an analytical tool every now and again. For example, if you run the family finances you can use charts to plan your budget and track incomings and outgoings, if you’re learning how to invest in stocks you might want to monitor your portfolio’s performance, and you could even use one to make decisions on something as mundane as which groceries you should buy this week.

The Power of Visualization. La visualisation de données pour les nuls. Static and dynamic network visualization with R. [June 2016 update] This tutorial has been updated and extended.

Static and dynamic network visualization with R

The new version includes additional information (more on interactive JS networks, geographic data, etc). If you want to see the old version, it is still available here. You can also get the new tutorial PDF and code here or on GithHub. Power Up Excel with 10 Add-Ins to Process, Analyze & Visualize Data Like a Pro. Vanilla Excel is powerful, precise, and performs miracles with data.

Power Up Excel with 10 Add-Ins to Process, Analyze & Visualize Data Like a Pro

And it can do even more for you and your data! Mini Excel Tutorial: Use Boolean Logic to Process Complex Data Mini Excel Tutorial: Use Boolean Logic to Process Complex Data Logical operators IF, NOT, AND, and OR, can help you get from Excel newbie to power user. We explain the basics of each function and demonstrate how you can use them for maximum results. Usage des métadonnées pour l’analyse des réseaux sociaux via Gephi : l’exemple de la Société Générale – Master Intelligence Economique et Stratégies Compétitives.

Latino LOUREIRO M... sur Twitter : "#Dataviz, infographies, animations interactives : la boîte à outils via @cyceron. - Dataviz, infographies, animations interactives : la boîte à outils. DataHarvest 2015 : quelques exemples de projets de datajournalisme. Données librement accessibles ou cachées et agrégées peu à peu par les journalistes ; révélations de fraude fiscale, de détournement de fonds ou bien recherche d'informations sur la guerre contre l'Etat islamique ; collaboration internationale ou travail en petite équipe...

DataHarvest 2015 : quelques exemples de projets de datajournalisme

Le « DataHarvest », la conférence européenne de datajournalisme qui s'est tenue les 8, 9 et 10 mai, a été l'occasion de présenter la diversité des acteurs et des thématiques abordées par ce genre journalistique qui connaît un engouement croissant. Tutorial: Network analysis of a Twitter hashtag using Gephi and NodeXL. Network analysis is a nifty area of data journalism that can show you how people are connected.

Tutorial: Network analysis of a Twitter hashtag using Gephi and NodeXL

This can be any type of connection really – Swedish data journalist Jens Finnäs mapped Eurovision voting data to see what countries vote for each other most often – but increasingly, it means looking at social networks like Facebook and Twitter. Since I’m just starting to get the hang of network analysis myself, I thought I’d share what I’ve picked up so far with this tutorial. You can visualise your own Facebook friends, or find out who the most influential users are on a certain hashtag. This last example is what I’m going to go through in this tutorial, using the Excel extension NodeXL and the network visualisation tool Gephi. Le Français le plus connu au monde est...

Quels sont, pour chaque culture, les personnages les plus importants ?

Le Français le plus connu au monde est...

La Technology Review nous apprend que Peter Gloor et son équipe du centre du MIT pour l’intelligence collective ont utilisé Wikipédia pour répondre à cette question. De Homère aux héros de Marvel : les réseaux sociaux dans les mythes. Une équipe de chercheurs brésiliens, menée par Pedro J. How to create data visualisations using Tableau's Story Points. Credit: luc legay on Flickr. Some rights reserved Data visualisations are a compelling way to present data-driven stories, but often they only show 'what' is happening in a story, rather than 'why' it is happening. Tableau's Story Points launched last year, allowing users to create a narrative or to offer analysis as they walk readers through sequential presentations from a specific dataset.

Story Points has been used by outlets such as CNBC in this interactive data timeline of the companies that have entered and left the iconic Dow Jones Industrial Average over the past 87 years. 4 Data Visualization Tools For Captivating Data Journalism. It’s more important than ever that your content is as visually arresting as the data behind it. Presenting information doesn’t have to be dull and dry. Whether you’re looking for a quick and easy solution or more complex data processing, these four tools will ensure that, whatever data you’re working with, your visuals will leave a lasting impression.

Charts-show-influential-languages-2014-12?r=US&utm_content=buffere42ba&utm_medium=social&utm_source=twitter. Many of most-spoken languages in the world — like Mandarin, Hindi, and Arabic — are far from being the most influential. As new MIT-led research suggests, those languages live in relative isolation, while a few tiny tongues are hugely influential. "A language like Dutch — spoken by 27 million people — can be a disproportionately large conduit, compared with a language like Arabic, which has a whopping 530 million native and second-language speakers," Science reports. "This is because the Dutch are very multilingual and very online.

" To find out which languages are the most influential around the world, MIT researchers Shahar Ronen, César Hidalgo, and their co-authors tracked book translations, multiple language editions of Wikipedia, and multilingual Twitter users to see how languages interact with one another. The below graphs show the connections different languages have with one another through these online platforms, forming what the authors call "Global Language Networks. " Data Visualization et Stratégie décisionnelle – Master Intelligence Economique et Stratégies Compétitives.

Journalism Tools sur Twitter : "The 10 Best Charts for Mobile Screens #dataviz ht @mututemple... Data Visualization 101: The 10 Best Charts for Mobile Screens. You’re probably already aware that people understand numbers much more easily when displayed in visual form. But what happens when these visuals are reduced to the size of a screen that’s often smaller than the palm of your hand? The precious real estate available on a mobile phone or tablet means that choosing the right mobile data visualization is even more crucial than ever before.

If your data is visualized efficiently and intuitively, it will be easier for your users to understand and, in the long run, will help them make better business decisions. Bruno Le Maire à la tête de l’UMP .. sur twitter ! See how red tweeters and blue tweeters ignore each other on Ferguson. After prosecutor Robert McCulloch announced the Ferguson grand jury’s decision not to indict Officer Darren Wilson for the shooting of Michael Brown, a night of clashes between police and protesters produced burning police cars, blocked highways, and automatic gunfire. Amid all the unrest, is it possible to get a clear look at some of the racial and political tensions that underlie the Ferguson conflict? I studied this question using a platform which has has played a major role throughout events in Ferguson: Twitter. Twitter has been used to disseminate live (and sometimes inaccurate) information about Ferguson, organize protests, and even to cyberattack the KKK.

In the days before the no-indictment decision, I collected a sample of more than 200,000 tweets related to Ferguson, and they painted a stark picture of how divided people were. 72 Hours of #Gamergate — The Message. The Breakdown Most of the posting activity to #Gamergate and #NotYourShield is retweets. (From here on, I’ll refer to both hashtags as just “#Gamergate” for readability’s sake.) Out of 316,669 total tweets, 217,384 of them (about 69%) were retweets. What Does A Map Of The Internet Look Like? It can be tough to visualize the internet. Web traffic companies like Alexa do a good job of showing the relative ranking of websites, but what about the connections between websites?

Greenpeace, l’ONG qui mobilise sur twitter – et sans robots ! Dans un article précédent, je vous parlais du succès de la campagne « Unfriend Coal » que Greenpeace a mené il y a quelques années contre Facebook, accusée d’utiliser des centrales au charbon. Devant la montée de la mobilisation des internautes organisée par Greenpeace, Facebook tout comme Nestlé en 2010, a dû reculer. Cartographier les trafics à l’échelle mondiale: l’exemple de l’ivoire. Linkurious se combine à Neo4j pour visualiser les graphes. Shodan : une cartographie du Net. Qu’est ce que le HTTPS (ou protocole SSL) ? #SEO #Data. Visualiser ses métadonnées Gmail : amusant puis carrément effrayant. La controverse sur les vaccins, une véritable guerre d’influence sur twitter. Analyse de la structure interne d'un site.

Find out where you are on the Cyberthreat map / Узнай, где сейчас кипит кибервойна. La Dataviz c'est joli mais ça sert à quoi? iTunes Analysis. Le changement climatique sur twitter : usages du hashtag #climatechange entre le 1er avril et le 1er juin 2014. Patent2net/Patent2Net. Gephi for the historically-inclined. Spatialisations par défaut. UCINET Software. Clement Levallois - Teaching and training material and Gephi tutorial.

Gephi Tutorial: Visualizing Facebook Network. Facebook friends network mapping: a Gephi tutorial. QlikView vs. Tableau: A Review of Two Visualization Giants » Experfy Insights. Fixing Gephi on MacOSXJon Arrien. CmapTools - Home Page Cmap.html. Excel / csv converter to network - Gephi Marketplace. Graphviz - Graph Visualization Software. Graphviz - Graph Visualization Software.