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A comment on The AI Systems of "Left 4 Dead" [pdf]. Parent comment

Re:The AI Systems of "Left 4 Dead" [pdf] by Brashman on Wednesday April 24, 2013 @02:22PM (#5603088)
Any idea why there hasn't been anything since 2009? Have they stopped publishing/presenting or just not updated the site?
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Re:The AI Systems of "Left 4 Dead" [pdf] by Caskman on Wednesday April 24, 2013 @04:45PM (#5603855)
That's just an old page

http://www.valvesoftware.com/company/publications.html

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Re:The AI Systems of "Left 4 Dead" [pdf] by DerekAlia on Wednesday April 24, 2013 @03:11PM (#5603351)
too busy making money off steam.
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