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15 Cards in this Set
- Front
- Back
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alpha beta procedure
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alpha max, beta min; Search can be discontinued below any MIN node having a beta value less than or equal to the alpha value of ANY of its MAX node ancestors. Search can be discontinued below any MAX node having an alpha value greater than or equal to the beta value of ANY of its MIN node ancestors
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Iconic based
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simulations of certain aspects of the world
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feature based
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descriptions of the world - what is true about it and what is not
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propositional calculus
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a language in which both the constraints among features and the values of features can be expressed and inference mechanisms that are able to perform the required reasoning
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Inference rules
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a set of rules for manipulating sentences in the language
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semantics
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for associating elements of the language with elements of some subject matter
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entailment
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provides very strong ways of showing that if certain propositiosn are true about a world, then some other propositions (perhaps ones that can't be sensed) must also be true
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PSAT (propositional satisfiability)
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the problem of finding a model for a formula
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interpretation
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an association of atoms with propositions
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denotation of the atom
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the proposition associated to an atom
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model (of the formula)
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an interpretation that satisfies a wff
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model (for that set of wff's)
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an interpretation that satisfies each wff in a set of wff
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Iterative Deepening
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set bound, follow DFS till find solution, if can't, set new bound, repeat
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resolution
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two clauses which can be resolved into one new clause
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horn clause
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a horn clause has at most one positive literal
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