[open-government] About examples of "Big data" making use of open gov data

[takashi.moriyasu.qy at hitachi.com]

Dear all,

Do you know anything about examples of so-called "Big data",
in which open government data is utilized?

Thank you for your information in advance.

All the best,
Takashi Moriyasu


***** Difinition of Big data ***** 

Big data is a term applied to data sets whose size is beyond the ability 
of commonly used software tools to capture, manage, and process the data 
within a tolerable elapsed time. Big data sizes are a constantly moving 
target currently ranging from a few dozen terabytes to many petabytes of 
data in a single data set.
In a 2001 research report and related conference presentations, then META 
Group (now Gartner) analyst, Doug Laney, defined data growth challenges 
(and opportunities) as being three-dimensional, i.e. increasing volume 
(amount of data), velocity (speed of data in/out), and variety (range of 
data types, sources). Gartner continues to use this model for describing 
"big data."

(Quoted from Wikipedia: http://en.wikipedia.org/wiki/Big_data.)