Backtracking is a strategy for finding solutions to constraint satisfaction problems. These are problems with a complete solution, whereby the order of elements does not matter.
Backtracking is a general algorithm for finding all (or some) solutions to some computational problem, that incrementally builds candidates to the solutions, ...
Performance of bruteforce backtracking can be improved by using a number of techniques such as variable ordering, value ordering, back jumping, and forward checking.
chronological backtracking in a tree search, a form of backtracking in which decisions that led to a failure are retracted or modified in the reverse of the order in which they were made, ...
To explain how the system answers these queries, we have to learn a very useful phenomenon, called backtracking. Let us now concentrate on the query: Teacher (X)? Since Teacher (X) ←
Person (X),
Writes-on (X, board, classhour).
Controlling Backtracking
6. Input and Output
7. More Built-In Predicates
8. Programming Style and Technique
9. Operations on Data Structures
10. Advanced Tree Representations
II. PROLOG IN ARTIFICIAL INTELLIGENCE
11.
Due to the limitation of decision algorithm (most algorithms of decision tree employ greedy strategy with no backtracking thus it is not exhaustive search), these sequences of priority in general is not optimum.
Subsequent tutorials will focus more on lists and recursion as well as operators (defining your own, backtracking control) and Prolog applied to practical problems, puzzles and AI!
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Kannan and Geetha (1976) point out strengths from the area of knowledge based systems that traditional databases could benefit from; " facilities for knowledge representation, deductive reasoning, search with backtracking, ...
predicate calculus); however it is restricted to allow only Horn clauses. Execution of a Prolog program is effectively an application of theorem proving by first order resolution. Fundamental concepts are unification, tail recursion and backtracking.
"This article demonstrates the key techniques for developing a rule-based legal expert system. It also introduces the reader to basic aspects of PROLOG, such as goal-oriented programming, backtracking and the interaction between PROLOG facts and ...
The algorithms we'll look at include backtracking search, forward checking search and constraint propagation search. We'll also look at general-purpose heuristics for additional search accelerations. ...
Unfortunately a small number decreases the amount of backtracking the search algorithm can do and thus the chance of a dead end becomes bigger.
 See also: Knowledge, Artificial intelligence, Search algorithm, AI, Neural network
  
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