Competition among memes in a world with limited attention : Scientific Reports Here we outline a number of empirical findings that motivate both our question and the main assumptions behind our model. We then describe the proposed agent-based toy model of meme diffusion and compare its predictions with the empirical data. Finally we show that the social network structure and our finite attention are both key ingredients of the diffusion model, as their removal leads to results inconsistent with the empirical data. We validate our model with data from Twitter, a micro-blogging platform that allows many millions of people to broadcast short messages through social connections. Nodes represent Twitter users, and directed edges represent retweeted posts that carry the meme. Full size image (815 KB) Limited attention We first explore the competition among memes. In Fig. 2 we compare the daily values of the system entropy to the corresponding average user entropy. Full size image (157 KB) User interests where x is a meme and f(x) the proportion of messages about x.
Life Science Materials from B-Bridge Ami Software - Logiciels de veille stratégique et d'intelligence économique Stick-On Censor Detects a Bike Crash as it Happens Riding a bike in an urban environment is great for health, great for the environment, and in many cases faster and easier than driving. But let’s face it: Taking a bike to the mean streets of the city can be a dangerous proposition. Thankfully, technology is stepping in to make riding a little more safe. The most amazing thing is that it actually works. Check out the video of the tech in action at TreeHugger.com. WATCH VIDEO: ICEdot Sticker Detects Cycling Accidents, Notifies Emergency Contacts
Phantom vibrations among undergraduates: Prevalence and associated psychological characteristics Phantom vibrations among undergraduates: Prevalence and associated psychological characteristics Michelle Drouin , Daren H. Kaiser, Daniel A. Indiana University–Purdue University Fort Wayne, United States article info Article history: Available online 15 April 2012 Keywords: Phantom vibrations Text message dependence Psychological characteristics Young adults Undergraduates abstract ‘Phantom vibration syndrome,’ or perceived vibrations from a device that is not really vibrating, is a recent psychological phenomenon that has attracted the attention of the media and medical community. Most (89%) of the 290 undergraduates in our sample had experienced phantom vibrations, and they expe- rienced them about once every two weeks, on average. higher in conscientiousness experienced phantom vibrations less frequently, and those who had strong reactions to text messages (higher in the emotional reaction subscale of text message dependence) were more bothered by phantom vibrations. unnecessary. Ó 2012 Elsevier Ltd.
Kinect PowerPoint Control Cartographie des outils de veille et de traitement de l'information Après la première version de la cartographie des outils de veille parue en 2005, voici enfin une nouvelle version à jour du panorama des outils de veille et de traitement de l’information. Cette cartographie recense les applications les plus connus sur le marché français principalement, avec de grands éditeurs américains. Elle ne présente pas de détails fonctionnels ou financiers sur ces applications. Cette version intègre désormais : Les plateformes de veilleLes agents de rechercheLes agents de surveillanceLes aspirateurs de sitesLes gestionnaires de sourcesLes outils de classification automatiqueLes outils de text miningLes outils de résumé automatiqueLes moteurs de recherche pour entrepriseLes outils de cartographie et de mindmappingLes plateformes collaborativesLes bases de données d’informations économiques, financières, juridiques, scientifiques et techniques. C’est une version beta qui est amenée à évoluer, avec vos retours, rectifications et commentaires. Articles similaires:
The EyeRing Personal Assistant: Augmented Reality at Your Fingertips Augmented reality devices and applications are starting to come into actual reality, and the latest idea is for a device worn on the finger, capable of conveying information about the world around us with both visual and audio clues. First came Google Glasses, then a hint that Apple is developing video glasses, and now a project from MIT promises to bring augmented reality to the visually impaired with a virtual assistant in a ring. The EyeRing, which includes a tiny camera, a processor, and Bluetooth connectivity to connect to a smartphone, is worn (where else?) on a finger, and can take a photo of an object and then return information about that object to the user using both audio and visual clues. “EyeRing is a wearable intuitive interface that allows a person to point at an object to see or hear more information about it. According to Technology Review, the researchers have used EyeRing together with a smartphone running Android software, with an iPhone app in the works.