23–26 May 2012
Ferry Stockholm-Mariehamn and Hotel Arkipelag, Mariehamn, Åland
Europe/Stockholm timezone

New Challenges in Inference Technology

23 May 2012, 17:00
45m

Speaker

Prof. Bart Selman (Cornell University)

Description

In recent years, we have seen tremendous progress in inference technologies. For example, in the area of Boolean satisfiability (SAT) and Mixed Integer Programming (MIP) solvers now enable us to tackle significant practical problem instances from applications in hardware and software verification, planning, and scheduling. Key to this success is the ability to strike the right balance between the expressiveness of the underlying representation formalism and the efficiency of the solvers. The next challenge is to extend the reach of these solvers to more complex tasks that lie beyond NP.
I will discuss our work on sampling, counting, probabilistic reasoning, and adversarial reasoning. In particular, I will discuss a sampling technique based on the so-called flat histogram method from statistical physics. The technique allows for fast probabilistic inference and learning in Markov Logic networks and other graphical models. In the area of adversarial reasoning, the UCT method, based on clever sampling strategies first developed for use in multi-armed bandit scenarios, provides a compelling alternative to traditional minimax search. The method has led to an exciting advance in the strength of GO programs. I'll discuss insights into the surprising effectiveness of the UCT technique.

Primary author

Prof. Bart Selman (Cornell University)

Presentation materials

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