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Multiagent Systems

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Prof. Dr. Jürgen Dix · Department of Informatics, TUC <strong>Multiagent</strong> <strong>Systems</strong>, WS 06/07 271/731<br />

4. Decision Making (2) 1. Voting<br />

We are now defining what a selection process,<br />

an election mechanism really is.<br />

Definition 4.4 (Social choice: 2 versions)<br />

1 A social choice function is any function<br />

C ∗ : V × U → O; (v, 〈≺ 1 , . . . , ≺ |A| 〉) ↦→ o<br />

2 A social choice correspondence is any<br />

function<br />

W ∗ : V × U → 2 O ; (v, 〈≺ 1 , . . . , ≺ |A| 〉) ↦→ v ′

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