Archive for 'Data Visualization'
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Posted 24 March 2010 | By A. Adam Glenn | Categories: Data Visualization, News Tech Tutorials, Web Tools | 1 Comment

The Tool: Web-based survey builder that lets users "rank" their choices
Why Use It: Buy cheap solian online, Great way to identify a "least worst" option instead of just a single favorite.

I was recently helping some students identify the best day for an event they were planning, and suggested they use some kind of "preferential voting system, pamelor pedido en línea,” one that allowed users to "rank" their answers, For luvox online, rather than just submitting a single "best" response. The idea was to allow voters to create a list --from most preferred to least preferred -- in order to find the group's "least worst" option.

Why bother, cheap luvox online. Let me illustrate. Let's say you and your colleagues want to go to lunch, but can’t decide between Chinese, Italian or Thai, buy cheap solian online. Comprare solian, Half the group loves Chinese but hates Italian, the other half loves Italian but hates Chinese, and everyone is just fine with Thai, pharmacy pamelor. A standard poll that forced a single response would show a tie between Chinese and Italian, Acheter lithium bon marché, with Thai in third, leaving you as hungry as when you started. On the other hand, pamelor, a ranking poll would show Thai as the top choice, Kentucky KY Ky., i.e. the least undesirable option. Buy cheap solian online, Spring rolls, anyone.

Now, Missouri MO Mo., the only problem with my suggestion was that while I knew I'd encountered a web-based survey tool like this a couple of years ago while visiting MIT Media Lab, District of Columbia DC D.C., I couldn't remember what it was called or where to find it. And a quick check of other survey-building tools I’d successfully used before didn’t unearth similar functionality, so I was momentarily stuck, pamelor kopen.

No problem. Köpa asendin, A quick query to my professional online network on LinkedIn pointed me to that MIT tool within a few hours. Called Selectricity, it was created by MIT Media Lab's Computing Culture group as a Knight Foundation-funded Future of Civic Media project, buy cheap solian online. Selectricity has a very easy-to-use "QuickVotes" function that allows you to create polls with amazing speed, and with a nifty sorting tool that has users dragging their preferences around the list before submitting their vote, buy asendin online.

But the even nicer thing about my LinkedIn pals is that they also pointed me to a slew of other preferential polling tools and techniques. Ordering sinequan online, I haven’t been able to check these all out, but would love to hear about it if you do. Here's what they suggested:


  • Lots of folks pointed out that Google Forms can be used to record responses on a 1-5 scale (Thanks Len De Groot of the Knight Digital Media Center at Berkeley J School, comprare pamelor sconto, Mathilde Piard of the Palm Beach Post, Kaufen lithium, Dorian Benkoil of Teeming Media, Sree Sreenivasan of Columbia J School and Sandeep Junnarkar of CUNY J School)

  • SurveyMonkey offers ranking functionality, emailed Joseph Maser, lowest price abilify, a senior business analyst and process engineer consultant at Autodesk, Buy abilify without prescription, who says he’s used it and that it works great (although it may be a feature only available to paid accounts).

  • Surveygizmo does allow respondents to rank choices, says former colleague TereLyn Hepple, a web content developer and technical writer at ECi Software Solutions, Kjøp Discount solian. Buy cheap solian online, And it can be free depending on your response rates. Plus, Cheap luvox no rx, she added, Micropoll does ranking by entering numerals and it's free too.

  • Cvent’s web surveys can do ranking as well, according to Sherrie Mersdorf, cheap abilify online, a database marketing analyst there. Oklahoma OK Okla., Cvent has a Rank Order” survey, a vertical list of categories with a numeric text box next to each that respondents rank in numerical order


So a big thank you to all those folks that pointed me to Selectricity (Lisa Williams of Placeblogger.com, Jose Zamora of Knight Foundation, New Mexico NM N.Mex., Jody Brannon of News21, Buy sinequan online, Michele McLellan and Chrys Wu), and to the other folks who offered suggestions and responses (Rob Duncan of Biritah Columbia Institute of Technology, Paul Grabowicz of UC Berkeley J School, acheter sinequan bon marché, Joe Filippazzo of CUNY J  School and producer/programmer Wallace Jackson).

If you know of other survey tools, by all means suggest them below. We’ll be adding a page with links on our J School wiki page, which can be updated anytime, and will post it here when it’s live.

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Posted 23 February 2010 | By Russell Chun | Categories: Data Visualization, Future of Journalism, General, Multimedia Storytelling, Video | No Comments

Order pamelor no prescription, Visualizing data often makes good stories. I wondered how stories themselves could provide data for visualizations. You often hear of the ideal graph of story structure--the classic three-part profile with an introduction to the conflict leading to a climax, Köpa billiga solian, and ending with the resolution. This structure would be represented by a slow-rising hill ending with a sharp decline. How could we graph and visualize existing stories, and would they correspond to this curve, Arizona AZ Ariz.. My approach was to visualize stories by tracking the level of drama, order pamelor no prescription. I defined the level of drama in a story with two criteria: changes in the audio and changes in the visual.

Tracking audio changes assume that louder scenes (explosions, Kansas KS Kans., musical crescendos, shouting) correspond to higher levels of drama. Rapid visual changes (quick motion across the screen, camera motion, billig kaufen anafranil, or rapid edits) also correspond to action, a quicker tempo, Jotta anafranil verkossa, and higher levels of drama. A combined index of audio and visual changes graphed over the length of the movie represents its unique fingerprint, revealing its dramatic highs and lows.



I analyzed forty noteworthy movies and collected the results in this interactive tool Order pamelor no prescription, . Use it to explore the dramatic profiles for each movie and their corresponding scenes, αγοράσετε abilify. Do the highest peaks in each profile match the movie's climactic moments.


Explore the Story Analysis tool, Ordering tofranil no rx, which was used to produce the graphs. Use it to see how each movie's audio and visuals are analyzed in real-time. You can analyze your own movies (FLV or MP4 format), output the data, and post the results for others to see, order pamelor no prescription.

How it was done
First, all the movies had to be converted to the correct Flash-friendly format, Pennsylvania PA Penn.. Each movie was converted to an MP4 (H.264 codec) file using Handbrake, a free open-source video transcoder. Abilify without a prescription, Then I had each movie stream into Flash with the FLVPlayer component.

Tracking the audio changes

Audio levels were analyzed with the ActionScript command, SoundMixer.computeSpectrum(). Order pamelor no prescription, The command takes a snapshot of the current sound and stores the information as a series of numbers that can be translated visually. While my sound visualization is rather simple, where to buy cheap tofranil, there are countless creative ways to visualize sound. There have even been contests for the most creative visualizations. Alaska AK, Since I was most interested in the variation of sound levels throughout the movie, I captured the amplitude (or volume) of the sound every 10 milliseconds and graphed it with a gray line. An average of the sound amplitude was calculated and graphed with a bold white line.

Tracking the visual changes

Every 10 milliseconds, Flash grabbed the image from the video stream with the BitmapData class, order pamelor no prescription. The command, buy elavil cheap, getPixel(), gathered the red, Order tofranil no prescription, green, and blue color information from each pixel. The red, green, sinequan online kaufen, and blue color distribution of an image is known as an RGB histogram. My goal was to track changes between histograms that would indicate major visual changes due to camera motion, Illinois IL Ill., edits, or subject motion. Much research has been already done on the subject of tracking shot changes for video cataloging, involving complex (and patented) algorithms, farmacia pamelor barato. Order pamelor no prescription, I made my calculation quite simple, determined by differences in the histogram area coupled with a dampening function to normalize the extreme values. The resulting index, which reflects visual changes, Cheap pamelor online, was graphed as a gray line. An average of the index was calculated and graphed as a bold white line.

Combining audio and visual changes


Combining the audio and visual indices resulted in what I termed, the "drama index", købe asendin online, a measure of the dramatic highs and lows in a movie. The overall shape of the profile, Wyoming WY Wyo., shown in red, can be interactively smoothed out or made more detailed by changing its resolution in the Story Analysis tool.

What does your favorite movie look like, order pamelor no prescription.
Analysis of forty distinguished movies–the top ten of all time, the worst ten, Michigan MI Mich., the ten highest grossing films, and the previous ten Best Pictures–not surprisingly reveal no common pattern, Alaska AK, but it does provide a standard, objective way of tracking a film’s dramatic peaks and valleys–their position, duration, and intensity. This screenshot is a profile of Star Wars, order elavil overnight delivery. Note the dramatic beginning when Princess Leia’s vessel is boarded, and the slow build-up to the three dramatic peaks at the end: the rescue from the Death Star, Ordering lithium pill, the duel between Darth Vader and Obi-Wan Kenobi, and finally the destruction of the Death Star. The analysis works best on modern action films. There is, order asendin pill, of course, no consideration for acting, Order sinequan pill, for cinematography, or for the dramatic climaxes that may come in quieter moments (such as the sudden change that crosses an actor's face with a revelation).

Other movie visualizations Order pamelor no prescription, There are many other interesting visualizations of movies. NetFlix recently ran a contest to see if the public could find a more effective way to predict which movies users would prefer based on past ratings. The results of two of the top teams can be visualized as a network of similarities between movies, or as a landscape with similar movies clustered together. (Based on these maps, if you liked Star Wars, then you probably also liked RoboCop).

One recent visualization cleverly plotted the interactions between characters. The hand-drawn map and synthesis of time and geography reminds me a little of Charles Minard's map of Napolean's march to Moscow, as discussed and praised by Edward Tufte as a gem of information design, order pamelor no prescription.

Finally, the New York Times produced a fascinating look at the box-office revenues of the movies. I love seeing the periodicity in the graph reflecting the predictable huge bumps during the summer blockbuster months and holiday season before the Oscar considerations. Notice also the relatively short, squatter profiles of recent movies compared to the long tails of movies in the past.

What more can we visualize of movies, or the structure of individual stories.

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