Principles of Artificial IntelligenceA classic introduction to artificial intelligence intended to bridge the gap between theory and practice, Principles of Artificial Intelligence describes fundamental AI ideas that underlie applications such as natural language processing, automatic programming, robotics, machine vision, automatic theorem proving, and intelligent data retrieval. Rather than focusing on the subject matter of the applications, the book is organized around general computational concepts involving the kinds of data structures used, the types of operations performed on the data structures, and the properties of the control strategies used. Principles of Artificial Intelligenceevolved from the author's courses and seminars at Stanford University and University of Massachusetts, Amherst, and is suitable for text use in a senior or graduate AI course, or for individual study. |
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Page 182
... goal wff . The underlined part of the answer statement is obviously similar to the entire goal wff - with g ( x ) taking the place of the existentially quantified variable x in the goal wff , and f ( g ( x ) ) taking the place of the ...
... goal wff . The underlined part of the answer statement is obviously similar to the entire goal wff - with g ( x ) taking the place of the existentially quantified variable x in the goal wff , and f ( g ( x ) ) taking the place of the ...
Page 184
Nils J. Nilsson. 5.4.3 . GOAL WFFS CONTAINING UNIVERSALLY QUANTIFIED VARIABLES A problem arises when the goal wff contains universally quantified variables . These universally quantified variables become existentially quantified in the ...
Nils J. Nilsson. 5.4.3 . GOAL WFFS CONTAINING UNIVERSALLY QUANTIFIED VARIABLES A problem arises when the goal wff contains universally quantified variables . These universally quantified variables become existentially quantified in the ...
Page 205
... goal wffs containing existentially or universally quantified vari- ables , we use a Skolemization process that is dual to that used for facts and rules . Universal variables in goals are replaced by Skolem functions of the existential ...
... goal wffs containing existentially or universally quantified vari- ables , we use a Skolemization process that is dual to that used for facts and rules . Universal variables in goals are replaced by Skolem functions of the existential ...
Contents
PROLOGUE | 1 |
PRODUCTION SYSTEMS AND AI | 17 |
SEARCH STRATEGIES FOR | 53 |
Copyright | |
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Common terms and phrases
8-puzzle achieve actions Adders AI production algorithm AND/OR graph applied Artificial Intelligence atomic formula backed-up value backtracking backward block breadth-first breadth-first search called chapter clause form CLEAR(C component contains control regime control strategy cost Deleters delineation depth-first search described discussed disjunction domain element-of evaluation function example existentially quantified F-rule formula frame problem global database goal expression goal node goal stack goal wff graph-search HANDEMPTY heuristic HOLDING(A implication initial state description knowledge literal nodes logic methods monotone restriction natural language processing negation node labeled ONTABLE(A optimal path pickup(A precondition predicate calculus problem-solving procedure production system proof prove recursive regress represent representation resolution refutation result robot problem rule applications search graph search tree selected semantic network sequence shown in Figure Skolem function solution graph solve stack(A STRIPS structure subgoal substitutions successors Suppose symbols termination condition theorem theorem-proving tip nodes universally quantified unstack(C,A variables WORKS-IN