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Multiagent Systems

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of. Dr. Jürgen Dix · Department of Informatics, TUC <strong>Multiagent</strong> <strong>Systems</strong>, WS 06/07 630/731<br />

9. Agents based on FOL 2. Situation Calculus<br />

Qualification problem: it is necessary to enumerate all<br />

conditions under which an action is executed<br />

successfully. For example:<br />

∀x (Bird(x) ∧¬P enguin(x) ∧ ¬Dead(x)∧<br />

∧¬Ostrich(x) ∧ ¬BrokenW ing(x)∧<br />

∧ . . .<br />

−→ F lies(x)<br />

It would be ideal to just say “birds normally<br />

fly”.<br />

Ramification problem: How should we handle implicit<br />

consequences of actions? For example<br />

Grab(Gold): Gold can be contaminated. Then<br />

Grab(Gold) is not optimal.

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