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
achieve actions algorithm AND/OR graph answer applied arcs Artificial Intelligence assume attempt backtracking backward block called chapter clause CLEAR CLEAR(C complete component condition consider consistent contains control strategy corresponding cost database deduction Deleters described direction discussed efficient evaluation example expression F-rule fact Figure formula function given goal goal stack goal wff HANDEMPTY heuristic important initial involves JOHN knowledge labeled language literals logic match methods move namely node Note obtained occur ONTABLE(A operation path possible precondition predicate calculus problem procedure production system proof prove quantified reasoning refutation represent representation resolution result robot rule satisfied selected sequence shown in Figure simple solution graph solve specify statement step STRIPS structure subgoal substitutions successors Suppose symbols termination theorem unifying unit University variables