Monday, January 4, 2010

day 1 - intro to ai



Artificial intelligence : a modern approach / Stuart J. Russell and Peter Norvig ; contributing writ Russell, Stuart J. (Stuart Jonathan) -- Q 335 R86 2003 c.3

http://aima.cs.berkeley.edu/

intelligent agent - receive percepts from the environment and perform actions, implements a function that maps percept sequences to actions.

ai - think / act like humans or think/act rationally

intelligent systems - best possible action in a situation, systems that can decide what to do and then do it

***rational system - system that does the 'right thing', given what it knows,

disciplines
- natural language processing (talk), knowledge representation (store), automated reasoning (new), machine learning (adapt instead of duplicate, eg. airplane flying)

think humanly - cog sci
thinking rationally - logic, socrates, translate informal knowledge to formal terms using logical notation
*acting rationally - rational agent approach (tries to achieve the best expected outcome)

Internet - most important environment for intelligent agents

fields - vision, sonar, speech / writing recognition

state of the art;
- autonomous planning and scheduling - NASA's remote agent, Game playing - deep blue, autonomous control - ALVINN (auto car steering), diagnosis - medical expert systems, logistics planning, robots for microsurgery, language understanding and problem solving - solving crossword puzzles, writing poetry, giving advice, translation

agent - anything that perceives the environment through sensors and act on it through actuators

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