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Judea Pearl
The A.I. Guy(2011 Turing Award Winner)
Matt HegartyCSCE 221-200 Spring 2013
His Life
September 4, 1936. Tel Aviv, Israel Mandatory military service B.S. Electrical Engineering – 1960 (Technion) M.S. Electronics – 1961(Rutgers) M.S. Physics and PhD in Electrical
Engineering – 1965 (Rutgers and PTI Brooklyn)
Why Judea is Awesome
Bayesian Networks A way for A.I. to handle causality – Often
compared to what Boolean operations were to logical calculus
He also did research in physics. And computer hardware He's also a musician And he runs the Daniel Pearl Foundation
The Problem with Causality
Probability is hard Example: Deaths from Smallpox vs deaths
from Smallpox Vaccines Diagnostic vs Causal Positive feedback – You can't do both at once The solution: Directed Graphs
Bayesian Networks
Courtesy of Wikipedia
Why this won a Turing Award
Prior to Bayesian networks, predictive algorithms always ran in best case N^2 time.
In order to get an accurate prediction, N nodes were needed for each N parameter.
Bayesian Networks only need local information to perform probability calculations.
Therefore operations can be run in linear time. This made probabilistic modeling a viable
option for problems of a non-trivial size.
Daniel
Judea's son Daniel was kidnapped and murdered in 2002.
His captors demanded the release of all Pakistani terror detainees
He was beheaded and cut into 10 pieces by Pakistani militants
The Foundation
Founded by Judea and Ruth after Daniel's death
Honors Daniel's memory, promotes understanding between Muslims and Jews
Helps aspiring journalists and puts on concerts across the world
