It was refreshing to spot this article in the Washington Post that uses the phrase "data mining" in the same way we do rather than as a synonym for spying or otherwise violating our civil liberties.
Airline crashes are extremely rare. Rare events pose a challenge in data mining. This article points out one solution which is to model a more common event which is sometimes a precursor to the very rare event of interest.
(Click the title of this post to go to the Washington Post article.)