AND-OR Search Trees - Yousef's Notes
AND-OR Search Trees

AND-OR Search Trees

In past problems, all branching was defined by the actions (OR Nodes) In non-deterministic environments, we also have AND Nodes.

A solution will:

  • have a goal node at every leaf
  • specifies one action at each OR node
  • includes every outcome branch at each AND node

LOOP means that the same node is reachable from a previous state in the same path

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