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Redefining optimal. When you’re trying to use models to probe the behavior of a complex biological system, there usually comes a point where you have to “fit parameters”.

Redefining optimal

This happens because the model is trying to build up a macroscopic picture from underlying features that may be impossible to measure. For example, in the case of tumor growth, your model might use local nutrient density as a parameter that affects the rate of the growth of individual cells in the tumor and therefore the growth of the tumor overall. But nutrient density might not be possible to measure, and so you would have to use experimental data on something that’s easier to measure (e.g. how rapidly tumors grow) to deduce how nutrient density changes across the tumor.

It's not about the data : Nature Genetics. Big Data : faire du sens à grande échelle. Après l'open-data la nouvelle tendance tout droit venue des US sera-t-elle le « big data » ?

Big Data : faire du sens à grande échelle

D’un récent voyage dans la Silicon Valley (merci aux amis du Orange Institute), je rentre avec une conviction : tout ce que nous connaissions du web va changer à nouveau avec le phénomène des big data. Il pose à nouveau, sur des bases différentes, presque toutes les questions liées à la transformation numérique. En 2008, l’humanité a déversé 480 milliards de Gigabytes sur Internet. En 2010, ce furent 800 milliards de Gygabytes, soit, comme l’a dit un jour Eric Schmidt, plus que la totalité de ce que l’humanité avait écrit, imprimé, gravé, filmé ou enregistré de sa naissance jusqu’en 2003. Ces données ne sont pas toutes des œuvres. The Sex Profile. CNN lance Ecosphere Project, un magnifique dispositif de visualisation de conversation twitter. Alain Massabova, 40 ans à Paris → TweetArt Bmx Magazine nous propose une bien jolie vidéo réalisée par JC Pieri mettant en scène Alain Massabova, éditeur du magazine Art Bmx.

CNN lance Ecosphere Project, un magnifique dispositif de visualisation de conversation twitter

Une ballade poétique dans Paris entrecoupée de […] Jusqu’où iriez vous pour des gâteaux apéritifs gratuits ? → Education Pays. Education Pays. The capitalist network that runs the world - physics-math - 19 October 2011. AS PROTESTS against financial power sweep the world this week, science may have confirmed the protesters' worst fears.

the capitalist network that runs the world - physics-math - 19 October 2011

An analysis of the relationships between 43,000 transnational corporations has identified a relatively small group of companies, mainly banks, with disproportionate power over the global economy. The study's assumptions have attracted some criticism, but complex systems analysts contacted by New Scientist say it is a unique effort to untangle control in the global economy. Pushing the analysis further, they say, could help to identify ways of making global capitalism more stable. The idea that a few bankers control a large chunk of the global economy might not seem like news to New York's Occupy Wall Street movement and protesters elsewhere (see photo).

Alternative and Nuclear Energy (Percentage of Total Energy Use) Mapping a World of Human Activity. With the world networked on an unprecedented scale, and the global population hitting 7 billion only weeks ago, we are living in a uniquely interconnected era, creating new opportunites and dependencies.

Mapping a World of Human Activity

It's the result of millenia of exploration, travel, exploitation, and innovation, and the Anthropocene, meaning “the new human-dominated period of the Earth’s history,” is a term coined in 2000 to describe this epoch. A Cartography of the Anthropocene is an effort by global education organization Globaïa to map this epoch, illustrating the various ways that global humanity connects and is interdependent. Anthropocene Mapping from Globaïa on Vimeo. Using data gathered from US government agencies, anthropologist Felix Pharand-Deschenes has created a collection of maps that illustrate the various circulatory systems that connect humanity: cities, roads, railways, power lines, pipelines, cable Internet, airlines, and shipping lanes.

Les data en forme. La veille hebdomadaire des journalistes de données d'OWNI vous propose cette semaine de vous data-situer dans l'humanité, de visualiser votre dîner ou encore d'ouvrir les données de la Bible...

Les data en forme

Présenter les volumes d’importations et d’exportations des pays du globe, depuis 1962 : complexe ? Un peu, mais the Observatory of Economic complexity (l’Observatoire de la complexité économique), ne recule pas devant la difficulté, comme son nom l’indique. 7 billion humans. The world population is expected to hit seven billion some time in the next few days.

7 billion humans

The United Nations has a countdown clock, of sorts, with a counter ticking steadily forward. The Guardian, along with the Spanish design house Bestario’s, has taken data from the U.N. to create a visualization of changes in global population. 50 Great Examples of Data Visualization. Wrapping your brain around data online can be challenging, especially when dealing with huge volumes of information.

50 Great Examples of Data Visualization

And trying to find related content can also be difficult, depending on what data you’re looking for. But data visualizations can make all of that much easier, allowing you to see the concepts that you’re learning about in a more interesting, and often more useful manner. Below are 50 of the best data visualizations and tools for creating your own visualizations out there, covering everything from Digg activity to network connectivity to what’s currently happening on Twitter. Music, Movies and Other Media Narratives 2.0 visualizes music. Historical Timeline of Computable Knowledge: 1900-1959. 1900: National Physical Laboratory; National Bureau of Standards Using physics to create standards NPL in the UK and NBS in the US are founded to make measurements and standards using methods from physics. 1907: Chemical Abstracts.

Historical Timeline of Computable Knowledge: 1900-1959 : WEF Challenge. Eagereyes | Visualization and Visual Communication. Simple Complexity — Making Simple Sense From Complex Data. Junk Charts. Loyal reader John M. expressed dismay over Twitter about 538's excessive use of bubble charts.

Junk Charts

Here's the picture that pushed John over the edge: The associated article is here. The question on the table is motivated by the extraordinary performance of a young baseball player Mike Trout. The early success can be interpreted either as evidence of future potential or as evidence of a future drought. As an analogy, someone wins a lottery. Accuracy&Aesthetics | BUILDING CONSENSUS. Blog. It can get pretty quiet here. I tend to post on Bostonography or Axis Maps a bit more often. “It’s just a population map!” By Andy Woodruff on 21 February 2014. Hubs and Connectors: Understanding Networks Through Data Visualization.

Yesterday a bunch of friends were tweeting about the new LinkedIn InMaps web app (part of LinkedIn Labs), so I had to check it out for myself. Wow, wow, wow! InMaps are data visualizations of your professional network, based on LinkedIn connections, with you as the center node. I’ve been waiting years for LinkedIn to finally get its act together and start offering up analytics based on all the data we willingly store within it — but rarely make use of. Visualizing The Web & Social Networks. May 26, 2010 Posted by Suzanne Marlatt Edelman Digital, Chicago Follow on Twitter @edelmandigital Seeing is believing and visuals are powerful. Prezi - The Zooming Presentation Editor. Exoplanet Orbit Database | Exoplanet Data Explorer. Lift 2011 : Visualisations des tweets. Well-formed data.

WallStats - The Art of Information. Well-formed data. Datavisualization. Information Is Beautiful | Ideas, issues, knowledge, data - visualized! FlowingData | Data Visualization, Infographics, and Statistics.