2007

• Diet and Weight Loss Tracking with Viz

  July 2, 2007 to Online Applications  •  Nathan Yau  •  Share on Twitter

  

  Weight loss is a difficult task for many, further complicated with so many diets -- Atkins, Jenny Craig, etc -- and lack of motivation. Fatsecret aims to make weight loss easier by providing the tools to track your weight loss, write about it, see what others are doing, and share your progress.

  There's a couple of graphs (built by Flash) on the homepage. The first, a pie chart, shows the proportions of fatsecret users on certain types of diets. You can see the proportions for this week, this month, or all time.

  Then towards the bottom -- a bar chart showing the average weight loss of fatsecret users for specified diets. Again, you can see for this week, this month, and all time.

  

  Every user has her own homepage which shows a line graph of her progress as well as the average weight loss of fatsecret members on the user's same diet.

  Fatsecret seems like quite of an active site with plenty of posting, tips, and member interactions, which makes me pretty happy. Next step: interactive tools.

• CitiStat: Injured on Duty “Data”

  July 2, 2007 to Data Sharing  •  Nathan Yau  •  Share on Twitter

  

  I was flipping through the channels the other night and came across a televised CitiStat meeting for June 1. A bit of a coincidence since I happened to be looking at the CitiStat website earlier that day. What's CitiStat, you ask? Well it's like a spin-off of CompStat, a program in NYC and LA, that makes police officials accountable for their actions by looking at data -- number of homicides, where they happened, what's being done, etc. CitiStat, in Buffalo, is the same thing, but for the Police, Fire Department, and whatever else they can think of, and seemingly not quite as reputable.

  Anyways, they were talking to some city official about fire department employees that were IOD, um, that's injured on duty (but I must've heard IOD like a billion times). There was some discrepancy on the definition of IOD. As a result, the data was worthless. The police commissioner spoke as well with his own IOD numbers. After that, there was a lot of arguing and as a result, a meeting was agreed upon. Well, not really. They agreed that they would schedule some meeting, but it's been a year of "What is an IOD?" Pretty sure that won't be settled for a while.

  They were also able to agree that the number of IODs was somewhere between 50 and 200. Yay.

  So despite the fact that the CitiStat program is two years old, there's still lots to be done. Officials aren't used to recording and looking at data, and it's clear, few even had any notion that data could be useful. However, I am glad that they're making the effort -- even if all of the data is stored on a bunch of inconsistent Excel spreadsheets :P.

• Time Series Tool Like Google Finance

  July 1, 2007 to Online Applications  •  Nathan Yau  •  Share on Twitter

  

  Chronoscope is a work-in-progress time series visualization tool that lets you explore data similar to that of Google Finance. It's written in Java, unlike Finance, which uses Flash/Javascript, and uses the Google Web Toolkit as the hook. After a quick look-see, it's certainly still in alpha, and I'm not quite sure when beta will be available to the public. The browsing is pretty nifty though. I wonder how hard it'd be to do it Flash?

• Focus Cloud: Tag Cloud with a Twist

  July 1, 2007 to Statistical Visualization  •  Nathan Yau  •  Share on Twitter

  

  Everyone's familiar with tag clouds, but Aaron Bassett put a slight twist to the now commonplace clouds. Aaron calls them Focus Clouds. Basically, they're still tag clouds, but instead of weighting tags by number of times used, there's some weight given to how recent a tag is. There's also some simple highlighting going on with related tags.

  The idea is that the focus cloud then gives you an idea of what is currently of interest. Aaron's code is available on his blog. The code is a bit buggy, but interesting nevertheless.

• Same Big Mac Data, Different Platform

  June 30, 2007 to Online Applications  •  Nathan Yau  •  Share on Twitter

  I went to Swivel, to see how they did with the same Big Mac data I visualized on Many Eyes. Swivel uses a Google Maps interface with an overlay:

  

  It looks nice, but it was incredibly slow when I tried to zoom in or browse the map. Actually, not just the map was slow, but the whole page. Maybe some caching issues? Exploratory graphics isn't really Swivel's high point at the moment. I also find it a little strange that the overlay is the same color as that of the maps on Many Eyes.

• Cost of Big Macs Worldwide

  June 28, 2007 to Online Applications  •  Nathan Yau  •  Share on Twitter

  

  I was playing around at Many Eyes, and it was amazingly easy to map some data on the Big Mac. The data set was simply two columns: country name and the cost of the Big Mac in that country. I chose the mapping visualization option, and voila, data was mapped. Awesome.

• Motivation to Change Behavior

  June 28, 2007 to Miscellaneous  •  Nathan Yau  •  Share on Twitter

  My mom recently, um, as in yesterday, got in a car accident. She was making a left turn at a light, and someone coming from the opposite direction decided to run a red light, sending my mom's car in a 90-degree turn. Fortunately, my mom only suffered minor burns from the airbag deployment; however, the car was totaled. The first thing that my mom did today -- the day after this major accident -- she went to work.

  This got me to thinking, what is enough to motivate someone to change her behavior? For some, when something really drastic happens, like a car accident, they gain a new outlook on life and vow to "live life to the fullest" or "value every moment". Then there are others, like my mom, who move along, because all they want is for their lives to be normal again.

  I wish I knew where to look for related research, but a quick search on Google Scholar didn't give me a whole lot.

  Let's see here... what motivates people to change their behaviors?

  • A significant, personal event
  • Change in surroundings
  • Coercion

  Surely, there's more. I'm going to dwell on this some more.

• Macromedia Flash: First Impressions

  June 28, 2007 to Software  •  Nathan Yau  •  Share on Twitter

  Flash or Processing? For now, Flash.

  For quite a while now, I've been back on forth on my data viz weapon of choice -- Flash or Processing. With Processing free and designed for artist, I naturally started here. There were some drawbacks of course like non-extensive (just decent) documentation, and it was a lot of learn by example. There were a lot of examples that were just chunks of code that I had to interpret. Also, written in Java, Processing applets were often slow to load in the browser, and there often seemed to be compatibility issues.

  SO, I've set Processing aside, and enter Flash.

  I've been playing around with a few examples from Flash Kit and Entheos, and to be quite honest, it's pretty fun. I like the interface, (I'm still getting used to it) and although I haven't used much ActionScript yet, I'm looking forward to learning it. Still waiting on my Flash book from Amazon, Macromedia Flash Professional 8 Hands-On Training, which is taking forever to get here.

  I'll just have to go through more tutorials until the darned thing arrives.

• Increasing Energy Awareness Through Design

  June 26, 2007 to Data Art  •  Nathan Yau  •  Share on Twitter

  The folks with STATIC!, a project led by the Interactive Institute in Switzerland, have been working on some really cool stuff. Their research is focused on interactive design that not only brings brings up energy awareness, but makes people want to change their behaviors.

  One of their projects, the Flower Lamp, was chosen as one of the best inventions of 2006 by Time Magazine.

  

  Basically, when a lot of energy is being used in a house, the lamp closes. When less energy is being used, the light opens, so to make the lamp more beauty, there has to be a change in behavior by the consumer. I haven't been able to figure out where the energy data is coming from though. Probably some separate mechanism that hooks into the power gauge in the garage.

  There's plenty of other STATIC! projects like the Power Aware Cord, Appearing Pattern Wallpaper, and the Energy Curtain. Some of their stuff seems more art than anything else, but still very cool.

  It would be interesting to put a more data-centric spin to these STATIC! projects.

  Hmm... I'll have to think about this one.

  Anyhow, the theme across all projects is certainly important as I progress -- producing visualizations that increase awareness and motivate people to change their behavior, even if just by a little bit.

• Creating Effective Visualization

  June 25, 2007 to Design  •  Nathan Yau  •  Share on Twitter

  What makes a visualization good? It allows people to see what they never would have seen otherwise? It's pretty? The visualization is interactive? Simple? Probably all of the above, and yeah, it's probably common sense, but... why is there so much bad viz out there?

  Perhaps people don't have the skills to create effective visualization. I, myself, don't yet possess the necessary skills to create great viz, so that's definitely a limiting factor. Whether it's in Flash, Processing, or whatever, honed skills is essential.

  In my eyes, the more serious problem, is that some don't have the eye or logic for good viz. It's great when the user can interact with the data, but if the user interface sucks, then the viz fails. Viz can easily get very complicated as we build, add more features, and eventually forget what our primary goal was in the first place.

  When the user has a viz tool she can use, then it's at this point, the viz should show the user something they never expected (or confirms a suspicion -- although I like the idea of surprise). From here, the user can decide what she wants to do, but it's my hope that anything I create will make people aware of their surroundings and motivate change in a positive direction.

  I feel like I'm rambling...

  So yeah, um, effective visualization -- expertise, simplicity, mind-blowing factor.