Implementing backjumping by throw/1 and catch/3 of Prolog

Włodzimierz Drabent

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arXiv · 2008.09610

Implementing backjumping by throw/1 and catch/3 of Prolog

Włodzimierz Drabent

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Abstract

We discuss how to implement backjumping (or intelligent backtracking) in Prolog programs by means of exception handling. This seems impossible in a general case. We provide two solutions. One works for binary programs; in a general case it imposes a restriction on where backjumping may originate. The other restricts a class of backjump targets. We also show how to simulate backjumping by means of backtracking and the Prolog database.

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Włodzimierz Drabent. 2020-08-21. Implementing backjumping by throw/1 and catch/3 of Prolog. https://arxiv.org/abs/2008.09610

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