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ml-recall

#backward-search

2 questions from Search & Planning

Timed test

2 questions · 2 min · score and explanations at the end

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Question 1: Single choice

mediumAI-checkedSearch & Planning

In the blocks world, Stack(X, Y) has preconditions holding(X), clear(Y); add effects on(X, Y), clear(X), AE; delete effects holding(X), clear(Y). Backward state-space planning starts from the goal G={on(A,B),on(B,C)}G = \{on(A, B), on(B, C)\}. What is the subgoal G′G' obtained by regressing GG through Stack(A, B)?

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