Storm: Distributed and Fault-tolerant Real-time Computation
Nathan Marz explain Storm, a distributed fault-tolerant and real-time computational system currently used by Twitter to keep statistics on user clicks for every URL and domain.
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IT Projects: 400% Over-Budget and only 25% of Benefits Realized
An alarming study by Flyvbjerg and Budzier published in the Harvard Business Review has made everyone stand-up and take notice. The coherent advice being that IT projects are much more riskier than we think.
jStat: A Lightweight Statistical JavaScript Library
jStat is a JavaScript library providing developers with statistical functions and the ability to plot graphics from within the browser. jStat can be used for statistical operations on all browsers without any external dependencies, and it requires jQuery and the flot plug-in for plotting data. jStat is a partial port of R - an open source statistical language and environment-.
Clojure Roundup: Distribution with Crane, Mathematics with Incanter, Builds with Leiningen 1.0
FlightCaster recently open sourced Crane, a tool for distributing and remotely controlling Clojure instances, currently specialized for EC2. Incanter is a Clojure library and tool that makes R-like statistical computations easy with Clojure. Also: the build and dependency management tool Leiningen 1.0 is now available.
Articles about Statistics
Standish: Why were Project Failures Up and Cost Overruns Down in 1998?
Following InfoQ's August interview with Jim Johnson, creator of the CHAOS Chronicles on project failure, one important question remained: how does the Standish Group explain the amazing change in cost overrun from 189% in 1994 to 69% in 1998? In an excerpt from this month's CHAOS University newsletter, Johnson refers to events in 1996 that changed the complexion of project planning and execution.
Agile Alliance Survey: Are We There Yet?
Diana Larsen, a member of the Agile Alliance Board of Directors, leads a lot of retrospectives... So, it's not surprising that, when she asked herself "Where is Agile going now?" her response was to run a retrospective of her own. She circulated a survey to the other Agile Alliance board members, and has compiled a picture of the trends they're seeing in the Agile world.
Interview: Jim Johnson of the Standish Group
Jim Johnson, founder and chairman of the Standish Group, took time out from his vacation to talk with InfoQ editor Deborah Hartmann about his research, and the role of Agile in changing the IT industry. Johnson is best known for creating the CHAOS Chronicles: 12 years of independent research on project performance, including data on over 50,000 completed IT projects.
Presentations about Statistics
Machine Learning: A Love Story
Hilary Mason presents the history of machine learning covering some of the most significant developments taking place over the last two decades, especially the fundamental math and algorithmic tools employed. She also exemplifies how machine learning is used by bit.ly to discover various statistical information about users.
Interviews about Statistics
Avi Bryant on Trendly, Ruby, Smalltalk and Javascript
Avi Bryant talks about the iterative process that led to Trendly (http://trendly.com/ ), using Javascript, Ruby and Java in the process. He goes on to give his view on the state of Smalltalk and Squeak and talks about his experiments with writing a Smalltalk that compiles to idiomatic Javascript to make use of all the modern Javascript VMs.
