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Probabilistic Graphical Models: Applications in Biomedicine

Speaker  Enrique Sucar

Affiliation  National Institute for Astrophysics, Optics, and Electronics (INAOE)

Host  Jaime Puente

Duration  00:41:21

Date recorded  24 May 2012

Probabilistic graphical models include a variety of techniques based on probability and decision theory-techniques that give us a theoretically well-founded basis for making decisions under conditions of uncertainty and to solve complex problems efficiently. Over the last year, these methods have been used in a great variety of applications, from medical expert systems to intelligent user interfaces.

In this talk, I give a general introduction to probabilistic graphical models and describe some of the most popular ones, such as Bayesian networks and Markov decision processes. Then I demonstrate their application in three complex problems in biomedicine: (1) helping a physician guide an endoscope in the colon, (2) modeling the evolutionary networks of HIV, and (3) adapting a stroke rehabilitation system for the patient.

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