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Friday, September 21, 2012

Statistics

In 1980 I taught the Fluids, Heat, and Waves laboratory course, at Universidad Autónoma de Puebla. I had taken Statistical Mechanics at the Physics Department of the University of California, Santa Barbara, and at Departamento de Física, of the Instituto Politécnico Nacional, Centro de Investigación y de Estudios Avanzados, in Mexico.

Now I am going to take the Artificial Intelligence Course CS188.1x, at the University of California Berkeley, through Coursera.

Furthermore, as I've written before on this blog, I believe, that most of what we call Theoretical Physics, is Applied Statistics. We measure, we fit, we propose formulas and computer programs, and do it again, and again, getting a better fit to data.

Professor Leo Breiman, from Berkeley, pursued his study of Statistics there, until his death.

Now it is my turn.

Collective Mind

When I express my beliefs with conviction, people listen. When many of us oppose the death penalty, people listen. Today is the anniversary of Troy Davis's execution. This has to stop. Governor Jerry Brown in California, has the courage to support the California Proposition 34 to stop the death penalty.

I am against the death penalty.

There.

Syllabus CS188.1x


CS188.1x: Introduction to Artificial IntelligenceBerkeleyX

YOU ARE REGISTERED FOR THIS COURSE (CS188.1X)

ABOUT THIS COURSE

CS188.1x is a new online adaptation of the first half of UC Berkeley’s CS188: Introduction to Artificial Intelligence. The on–campus version of this upper division computer science course draws about 600 Berkeley students each year.
Artificial intelligence is already all around you, from web search to video games. AI methods plan your driving directions, filter your spam, and focus your cameras on faces. AI lets you guide your phone with your voice and read foreign newspapers in English. Beyond today’s applications, AI is at the core of many new technologies that will shape our future. From self–driving cars to household robots, advancements in AI help transform science fiction into real systems.
CS188.1x focuses on Behavior from Computation. It will introduce the basic ideas and techniques underlying the design of intelligent computer systems. A specific emphasis will be on the statistical and decision–theoretic modeling paradigm. By the end of this course, you will have built autonomous agents that efficiently make decisions in stochastic and in adversarial settings. CS188.2x (to follow CS188.1x, precise date to be determined) will cover Reasoning and Learning. With this additional machinery your agents will be able to draw inferences in uncertain environments and optimize actions for arbitrary reward structures. Your machine learning algorithms will classify handwritten digits and photographs. The techniques you learn in CS188x apply to a wide variety of artificial intelligence problems and will serve as the foundation for further study in any application area you choose to pursue.

COURSE STAFF

Dan Klein

Dan Klein (PhD Stanford, MSt Oxford, BA Cornell) is an associate professor of computer science at the University of California, Berkeley. His research focuses on natural language processing and using computational methods to automatically acquire models of human languages. Examples include large–scale systems for language understanding, information extraction, and machine translation, as well as computational linguistics projects, such as the reconstruction of ancient languages. One of his best–known results was to show that human grammars can be learned by statistical methods. He also led the development of the Overmind, a galaxy–dominating, tournament–winning agent for the game of Starcraft. Academic honors include a Marshall Fellowship, a Microsoft Faculty Fellowship, a Sloan Fellowship, an NSF CAREER award, the ACM Grace Murray Hopper award for his work on grammar induction, and best paper awards at the ACL, NAACL, and EMNLP conferences.

Pieter Abbeel

Pieter Abbeel (PhD Stanford, MS/BS KU Leuven) joined the faculty of the Department of Electrical Engineering and Computer Sciences at UC Berkeley in 2008. He regularly teaches CS188: Introduction to Artificial Intelligence and CS287: Advanced Robotics. His research focuses on robot learning. Some results include machine learning algorithms which have enabled advanced helicopter aerobatics, including maneuvers such as tic–tocs, chaos and auto–rotation, which only exceptional human pilots can perform, and the first end–to–end completion of reliably picking up a crumpled laundry article and folding it. Academic honors include best paper awards at ICML and ICRA, the Sloan Fellowship, the Air Force Office of Scientific Research Young Investigator Program (AFOSR–YIP) award, the Okawa Foundation award, the MIT TR35, the IEEE Robotics and Automation Society (RAS) Early Career Award, and the Dick Volz award for best PhD thesis in robotics and automation.

SYLLABUS

  • Introduction
    • Overview
    • Agents: Perception, Decisions, and Actuation
  • Search and Planning
    • Uninformed Search (Depth-First, Breadth-First, Uniform-Cost)
    • Informed Search (A*, Greedy Search)
    • Heuristics and Optimality
  • Constraint Satisfaction Problems
    • Backtracking Search
    • Constraint Propagation (Arc Consistency)
    • Exploiting Graph Structure
  • Game Trees and Tree-Structured Computation
    • Minimax, Expectimax, Combinations
    • Evaluation Functions and Approximations
    • Alpha-Beta Pruning
  • Decision Theory
    • Preferences, Rationality, and Utilities
    • Maximum Expected Utility
  • Markov Decision Processes
    • Policies, Rewards, and Values
    • Value Iteration
    • Policy Iteration
  • Reinforcement Learning
    • TD/Q Learning
    • Exploration
    • Approximation

PREREQUISITES

  • Programming
    • Object-Oriented Programming
    • Recursion
    • Python or ability to learn Python quickly (mini-tutorial provided)
  • Data Structures
    • Lists vs Sets (Arrays, Hashtables)
    • Queuing (Stacks, Queues, Priority Queues)
    • Trees vs Graphs (Traversal, Backpointers)
  • Math
    • Probability, Random Variables, and Expectations (Discrete)
    • Basic Asymptotic Complexity (Big-O)
    • Basic Counting (Combinations and Permutations)
  1. Course Number
    CS188.1x
  2. Classes Start
    Sep 24, 2012
  3. Classes End
    Nov 16, 2012
  4. Estimated Effort
    15 hours/week
  5. Prerequisites
    Yes

CS188x: Artificial Intelligence!



 
Dear Eduardo Cantoral,

Welcome to CS188x: Artificial Intelligence!  When the course begins on Monday (9/24), you will be joining tens of thousands of other students from around the world in UC Berkeley's new online course on AI.  In addition to learning the theoretical foundations of AI, you will also get hands-on experience implementing AI algorithms in a video-game-themed context.

The course website will be live starting Monday.  Once the course starts, there will be lecture videos and homework assignments every week, programming projects every other week, and a single final exam at the end.  Our primary communication channel will be the website’s interactive forum, where students and staff will get to contribute to an ongoing discussion of the material.

We look forward to a great semester with you!

Dan, Pieter, and the CS188x Course Team



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Thursday, September 20, 2012

Frankenweenie

Reyna Grande

This woman made me cry several times yesterday. I read her book The Distance Between Us.

She is from Iguala, the closest city, next to my mother's hometown of Huitzuco. Most of all, I was crying because I also left my precious little ones, and my wife to pursue an impossible dream in Mexico. A scientific career in a country run by drug dealers, supported by Enrique Peña Nieto, and Carlos Salinas de Gortari.

I also cried because I taught in Iguala, in the same neighborhood where Reyna lived, with her maternal grandmother. It is really poor there, as she describes in the book, and my students, who I love, are still living there, in that squalor.

When you see people living in garbage, and nobody is fixing it, you kind of block it. I met the Mayor, Raúl Tovar Tavera, a man with such a little awareness of reality, that couldn't care less, how my students live.

I come from the ruling classes, and I feel a civil war in the making there. I am happy, I have my children here, just like in the Memoir, written by Reyna.

It has been hard for us also, to emigrate from Mexico, and to immigrate to the US.

Thank you Ms. Grande!

Today (9/21/2012) I read there is no water in 60% of the city, and the Mayor couldn't care  less:

"He added that on Wednesday of last week, when the deadline passed to pay, during a meeting with executives of the CFE was granted an extension that perished on Wednesday and the mayor, Raul Tovar Tavera had pledged to cover the debt that exceeds 900,000 pesos through a loan that would make Capami, but no credit was authorized by the financial insolvency of City Hall."

Taken From La Jornada Guerrero

Beautiful