Pulse of the Nation: U.S. Mood Throughout the Day inferred from Twitter Click for high-resolution PDF version (11MB) Video A time-lapse video of the maps, cycled twice, is available below (best viewed at 720p): Mood Variations A number of interesting trends can be observed in the data. First, overall daily variations can be seen (first graph), with the early morning and late evening having the highest level of happy tweets. CourseWiki - CS448B Data Visualization The world is awash with increasing amounts of data, and we must keep afloat with our relatively constant perceptual and cognitive abilities. Visualization provides one means of combating information overload, as a well-designed visual encoding can supplant cognitive calculations with simpler perceptual inferences and improve comprehension, memory, and decision making. Furthermore, visual representations may help engage more diverse audiences in the process of analytic thinking. In this course we will study techniques and algorithms for creating effective visualizations based on principles from graphic design, visual art, perceptual psychology, and cognitive science.
Getting to Philosophy Clicking on the first link in the main text of a Wikipedia article, and then repeating the process for subsequent articles, usually eventually gets you to the Philosophy article. As of May 26, 2011, 94.52% of all articles in Wikipedia lead eventually to the article Philosophy. The remaining 100,000 (approx.) links to an article with no wikilinks or with links to pages that do not exist, or get stuck in loops (all three are equally probable). The median link chain length to reach philosophy is 23.
Moodwall / Studio Klink and Urban Alliance Media architecture collective Urban Alliance has recently finished the Moodwall: a 24 meter long interactive light installation in Amsterdam. The Moodwall is situated in a pedestrian tunnel and interacts with people passing by, improving the atmosphere in the tunnel and making people happy and feel less unsafe. The interactive urban wallpaper is built out of about 2500 leds behind a ribbed semi-transparent wall.
Weka 3 - Data Mining with Open Source Machine Learning Software in Java Weka is a collection of machine learning algorithms for data mining tasks. The algorithms can either be applied directly to a dataset or called from your own Java code. Weka contains tools for data pre-processing, classification, regression, clustering, association rules, and visualization.
User:Ilmari Karonen/First link An internet meme, originally discovered by a user of Reddit.com named pixelcrak  on April 13, 2011 and further popularized by xkcd , says that if you go to a random article on Wikipedia and keep clicking the first non-parenthesized link in the body text of each article you get, you'll always eventually end up at Philosophy. But is this really true? Or, rather, what is the probability of that actually happening?
Interactive: Mapping the World's Friendships Technology bridges distance and borders. Individuals today can keep in touch with their friends and family in completely new ways — regardless of where they live. We explored these international connections through Facebook and found some trends — some predictable, some wholly unexpected, and some still inexplicable. Use Google Refine to Export JSON Tutorial: Use Google Refine to Export JSON Introduction Google Refine is great at cleaning large sets of data. But one amazing under-documented feature is the ability to design and output JSON files. With Google Refine, you can turn a simple spreadsheet into a straight forward JSON dataset or multidimensional array quickly and easily. If you haven’t used Refine before, here’s some videos to get you started.
All Roads Lead to “Philosophy” All Roads Lead to “Philosophy” There was an idea floating around that continuously following the first link of any Wikipedia article will eventually lead to “Philosophy.” 1 This sounded like a reasonable assertion, one that makes a certain amount of sense in retrospect: any description of something will typically use more general terms. Following that idea will eventually lead… somewhere. It also sounded like an idea that would be easily examinable with basic client-side scripting tools, using the Wikipedia API and a good graphing package.
Data Visualization: Photo-Sharing Explosions This is a series of videos that visualizes a single piece of content being shared between hundreds of thousands of individuals on Facebook. We've tried to capture the frenetic energy surrounding three of the most shared images, all of which were photos published on George Takei's Page. Each visualization is made up of a series of branches starting from a single person. As the branch grows, re-shares split off on their own arcs, sometimes spawning a new generation of re-shares, sometimes exploding in a short-lived burst of activity.
Pattern Pattern is a web mining module for the Python programming language. It has tools for data mining (Google, Twitter and Wikipedia API, a web crawler, a HTML DOM parser), natural language processing (part-of-speech taggers, n-gram search, sentiment analysis, WordNet), machine learning (vector space model, clustering, SVM), network analysis and <canvas> visualization. The module is free, well-document and bundled with 50+ examples and 350+ unit tests. Download
Heterotopia (space) Heterotopia is a concept in human geography elaborated by philosopher Michel Foucault to describe places and spaces that function in non-hegemonic conditions. These are spaces of otherness, which are neither here nor there, that are simultaneously physical and mental, such as the space of a phone call or the moment when you see yourself in the mirror. A utopia is an idea or an image that is not real but represents a perfected version of society, such as Thomas More’s book or Le Corbusier’s drawings. SPRING SPREE - Spending patterns in Spain during Easter 2011 The Senseable City Lab together with leading Spanish bank BBVA has embarked on an examination of expenditure patterns and urban analysis at large, using an unprecedented dataset of financial transactions. The first in a series of studies, Spring Spree illustrates the purchasing patterns across Spain during Easter 2011. Using data gathered by the BBVA banking network, this visualization shows how 1.4 million individuals and 374,220 businesses performed over 4 million transactions for a total of €232 million in the week of Easter 2011.