David A. McAllester of the American Association of Artificial Intelligence since 1997. He has authored over 100 refereed publications. McAllester's research areas include machine learning theory, the theory of programming languages, automated reasoning, AI planning, computer game playing (computer chess), and computational linguistics. A 1991 paper on AI planning proved to be one of the most influential papers of the decade in that area. A 1993 paper on computer game algorithms influenced the design of the algorithms used in the Deep Blue system that defeated Garry Kasparov. A 1998 paper on machine learning theory introduced PAC-Bayesian theorems which combine Bayesian and non-Bayesian methods.
What a Terrible World, What a Beautiful World Boston Globe" described the album as one of the band's "most enjoyable and lively efforts in recent memory", "The New York Times" noted that "What a Terrible World, What a Beautiful World" "strikes a note of pop concision and maturity, building on what worked on ‘The King Is Dead.’ Lyrically, there are fewer thistles and minarets and palanquins—and, musically, less digressive excess—than once made up the Decemberists’ trademark style." Jeremy Larson of Pitchfork Media was a detractor, bemoaning the album as "overlong and under-ambitious", though appreciating that listeners "start to see Meloy himself more than ever". Larson also wrote highly