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The need of data visualization
We've all heard it: according to Hal Varian, statistics is the next sexy job . Five years ago, in What is Web 2.0 , Tim O'Reilly said that "data is the next Intel Inside." But what does that statement mean? Why do we suddenly care about statistics and about data? In this post, I examine the many sides of data science -- the technologies, the companies and the unique skill sets.
Data science
The Greatest Challenge Facing IT
A lot has been said and written about information overload. Ultimately, though, the issue with ever-expanding data is that the data we need becomes hidden in mountains of other data. Typically, these mountains take the form of relational databases where the data is neatly stored in rows and columns, and we find the data in one of two ways. Either we directly look up data by its “address” within the database, or else we use a simple text search.
Context. It’s not enough simply to have the right data. People must have access to views of the data that depict exactly what they need to see, whether it be an executive dashboard, a regional summary map, or a customer-by-customer detailed report by Aug 13
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Data visualization chart
Recommandez cet article à vos amis Partagez et sauvegardez Ancien journaliste à Libération, Frédéric Filloux est aujourd’hui éditeur pour Schibsted International . Il a confondé le journal 20 minutes . Il est aussi chroniqueur régulier pour le site d’information économique E24.fr et pour Slate.fr et enseigne à l’Ecole de journalisme de Sciences Po (internet & multimédia).
Frédéric Filloux revisite le journalisme
Journalism has always been about reporting facts and assertions and making sense of world affairs. No news there. But as we move further into the 21st century, we will have to increasingly rely on "data" to feed our stories, to the point that "data-driven reporting" becomes second nature to journalists. The shift from facts to data is subtle and makes perfect sense. You could that say data are facts, with the difference that they can be computed, analyzed, and made use of in a more abstract way, especially by a computer.
Journalism Needs Data in 21st Century
Interrogating data well means you need to have a good understanding of jargon and the wider context within which data sits, plus statistics - a familiarity with spreadsheets can help save a lot of time. 3. Visualising data 2.
How to be a data journalist
(fr) Le journalisme de données
Data.gov a sonné le départ d’une démocratie plus transparente, et après quelques hésitations, le gouvernement américain, lui même concurrencé par des initiatives comme la Sunlight Foundation, semble décidé à avancer plus vite encore vers la fourniture de données brutes aux citoyens. Mais le fait de disposer de données et de les afficher dans différents graphiques n’apporte pas pour autant une valeur scientifique au graphique en question, et l’interprétation d’un graphique requière des compétences qui semblent à l’évidence absentes des formations en sciences politiques. De la démocratie Nous pourrions aller vers le grand n’importe quoi si rien n’est fait pour avertir le plus grand nombre de la difficulté qu’il peut y avoir à interpréter un graphique. En ce sens, la transparence pourrait bien se transformer en dictature de la transparence. Une dictature du chiffre, une course à la simplification à outrance.
Feel free to ask questions . There's a lot of little tricks . by Jan 22



