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Comment Prior art by IBM? (Score 3, Informative) 104 104

I remember IBM DB2 ads from the 90s about, well, sketch-based DB searches. IBM called it "Query by Image Content", or QBIC. It was easy to find one using Google Books -- in this case, CIO Magazine, Sept. 1, 1995: http://books.google.com/books?id=AAcAAAAAMBAJ&lpg=PA25&ots=GGDbllo74W&dq=ibm%20db2%20ad%20bottle%20%22perfect%22&pg=PA24#v=onepage&q&f=false


Submission + - Optimizations are way more flakey than you thought->

An anonymous reader writes: What difference can the size of your environment have on code optimiaztions? As it turns out, a lot. In Producing Wrong Data Without Doing Anything Obviously Wrong we find out that minor, seemingly unrelated things can have a huge effect on the effectiveness of code optimizations. Main conclusion: most computer science papers that deal with code optimizations and report experimental success (benchmarks) are in fact scientifically invalid.
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Machines that have broken down will work perfectly when the repairman arrives.