jm + visualization   22

Parable of the Polygons - a playable post on the shape of society
Our cute segregation sim is based off the work of Nobel Prize-winning game theorist, Thomas Schelling. Specifically, his 1971 paper, Dynamic Models of Segregation. We built on top of this, and showed how a small demand for diversity can desegregate a neighborhood. In other words, we gave his model a happy ending.
games  society  visualization  diversity  racism  bias  thomas-schelling  segregation 
february 2017 by jm
Engineering Intelligence Through Data Visualization at Uber
bloody hell, Uber have a 15-person dataviz team. More money than sense! The resulting output is pretty though
data  dataviz  visualization  webgl  uber  mapping 
august 2016 by jm
The Nyquist theorem and limitations of sampling profilers today, with glimpses of tracing tools from the future
Awesome post from Dan Luu with data from Google:
The cause [of some mystery widespread 250ms hangs] was kernel throttling of the CPU for processes that went beyond their usage quota. To enforce the quota, the kernel puts all of the relevant threads to sleep until the next multiple of a quarter second. When the quarter-second hand of the clock rolls around, it wakes up all the threads, and if those threads are still using too much CPU, the threads get put back to sleep for another quarter second. The phase change out of this mode happens when, by happenstance, there aren’t too many requests in a quarter second interval and the kernel stops throttling the threads. After finding the cause, an engineer found that this was happening on 25% of disk servers at Google, for an average of half an hour a day, with periods of high latency as long as 23 hours. This had been happening for three years. Dick Sites says that fixing this bug paid for his salary for a decade. This is another bug where traditional sampling profilers would have had a hard time. The key insight was that the slowdowns were correlated and machine wide, which isn’t something you can see in a profile.
debugging  performance  visualization  instrumentation  metrics  dan-luu  latency  google  dick-sites  linux  scheduler  throttling  kernel  hangs 
february 2016 by jm
Plotly
Online chart maker for CSV and Excel data; make charts and dashboards online. One really nice feature is that charts made this way get permalinks, and can be easily inlined as PNGs or HTML5 divs. (See https://www.vividcortex.com/blog/analyzing-sparks-mpp-scalability-with-the-usl for an example.)
data  javascript  python  tools  visualization  dataviz  charts  graphing  web  plotly  plots  graphs 
january 2016 by jm
MetricsGraphics.js - a library based on D3.js, optimized for visualizing and laying out time-series data
MetricsGraphics.js is a library built on top of D3 that is optimized for visualizing and laying out time-series data. It provides a simple way to produce common types of graphics in a principled, consistent and responsive way. The library currently supports line charts, scatterplots and histograms as well as features like rug plots and basic linear regression.
charts  javascript  timeline  visualization  time-series  d3 
november 2014 by jm
Two Maps One Scale
Great map-comparison tool from Jef Poskanzer
jef-poskanzer  mapping  maps  comparison  visualization  geo  world  cities 
july 2014 by jm
Beautiful algorithm visualisations from Mike Bostock
This is a few days old, but unmissable. I swear, the 'Wilson's algorithm transformed into a tidy tree layout' viz brought tears to my eyes ;)
dataviz  algorithms  visualization  visualisation  mazes  trees  sorting  animation  mike-bostock 
june 2014 by jm
Packet Flight: Facebook News Feed @8X
good dataviz of a HTTP page load: 'this is a visualization of a Facebook News Feed load from the perspective of the client, over a 3G wireless connection. Different packet types have different shapes and colors.' (via John Harrington)
via:johnharrington  visualization  facebook  dataviz  networking  tcp  3g 
january 2014 by jm
earth wind map
Beautiful d3.js dataviz of wind patterns and forecasts, projected against a vector Earth map
earth  map  visualization  weather  javascript  d3.js  dataviz  wind  forecasts  maps 
january 2014 by jm
WTF Visualizations
'Visualizations that make no sense.'

Some of these are unintentional comedy gold -- pie charts feature heavily, of course. (via Des Traynor)
via:destraynor  infographics  wtf  visualization  dataviz  data  fail  funny  graphics  pie-charts 
september 2013 by jm
Fat Tails
Nice d3.js demo of the fat-tailed distribution:
A fat-tailed distribution looks normal but the parts far away from the average are thicker, meaning a higher chance of huge deviations. [...] Fat tails don't mean more variance; just different variance. For a given variance, a higher chance of extreme deviations implies a lower chance of medium ones.
dataviz  via:hn  statistics  visualization  distributions  fat-tailed  kurtosis  d3.js  javascript  variance  deviation 
july 2013 by jm
gnuplot's dumb terminal
Turns out gnuplot has a pretty readable ASCII terminal rendering mode; combined with 'watch' it makes for a nifty graphing one-liner
gnuplot  plotting  charts  graphs  cli  command-line  unix  gnu  hacks  dataviz  visualization  ascii 
june 2013 by jm
A Periodic Table of Visualization Methods
interesting categorisation, and some crazy visualisations I've not encountered before (via Aileen)
dataviz  visualization  information  design  ui  via:aileen 
july 2012 by jm
Cubism.js
'a D3 plugin for visualizing time series. Use Cubism to construct better realtime dashboards.' Apache-licensed; nice realtime update style; overlays multiple data sources well. I think I now have a good use-case for this
javascript  library  visualization  dataviz  tsd  data  apache  open-source 
april 2012 by jm
Dark Sky - Weather Prediction, Reinvented by Adam Grossman & Jack Turner — Kickstarter
Yes! short-term weather prediction and dataviz. I've been vaguely considering ideas along these lines recently, but these guys have gone much further. US residents, fund it -- I really hope this gets made and makes it to Ireland...
crowdfunding  weather  apps  cool  dataviz  visualization 
november 2011 by jm
dygraphs JavaScript Visualization Library
'an open source JavaScript library that produces produces interactive, zoomable charts of time series. It is designed to display dense data sets and enable users to explore and interpret them.' quite pretty
time-series  data  tsd  graphs  charts  javascript  via:reddit  dataviz  visualization  opensource  dygraphs  from delicious
december 2009 by jm
Excellent animated treemap dataviz
"How the Giants of Finance Shrank, Then Grew, Under The Financial Crisis". but the data is less interesting than the excellent dataviz technique used to display it
data  dataviz  visualization  economy  animation  nyt  infographic  infographics  treemap  design  flash  banking  nytimes  bailout  from delicious
september 2009 by jm
glTail.rb - realtime logfile visualization
'View real-time data and statistics from any logfile on any server with SSH, in an intuitive and entertaining way', supporting postfix/spamd/clamd logs among loads of others. very cool if a little silly
dataviz  visualization  tail  gltail  opengl  linux  apache  spamd  spamassassin  logs  statistics  sysadmin  analytics  animation  analysis  server  ruby  monitoring  logging  logfiles 
july 2009 by jm

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