We have just released flightcaster.com which uses statistical inference and
machine learning to predict flight delays in advance of airlines (initial
results appear to do so with 85 - 90 % accuracy.) The webserver and webapp are all rails running on the Heroku platform; which
also serves our blackberry and iphone apps. The research and data heavy lifting is all in Clojure. Distributed data mining is done via a custom layer on top of cascading
(which is a layer on top of hadoop.) All run on EC2 and S3 using the very
nice cloudera AMIs and deployment scripts.
—
From the guys at flightcaster.com . I’m always excited by data-intensive apps
