Research map / Learning theory and algorithms / Submodular and game algorithms
Strategyproofness and Proportionality in Party-Approval Multiwinner Elections
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| Require anonymity, weak representation, and strategyproofness simultaneously | Party-approval rules · k≥3, m≥k+1, 2k divides n | axiom compatibility | Hurt |
| Require anonymity, weak proportional representation, and strategyproofness simultaneously | Party-approval rules · k≥3, m≥4, 2k divides n | axiom compatibility | Hurt |
| Weaken strategyproofness to protect only unrepresented voters | CCAV · All k, m, and n | axiom satisfaction | Helped |
| Use a Thiele rule other than CCAV or AV | Thiele rules · Some k, m, and n | strategyproofness for unrepresented voters | Hurt |
| Use sequential Thiele rules other than AV | Sequential Thiele rules · Some k, m, and n | strategyproofness for unrepresented voters | Hurt |
| Use divisor methods based on majoritarian portioning other than AV | Divisor methods based on majoritarian portioning · Some k, m, and n | strategyproofness for unrepresented voters | Hurt |
| Require weak representation | AV · Party-approval elections | weak representation | Hurt |
| Require strategyproofness | CCAV · Party-approval elections | strategyproofness | Hurt |
| Apply the impossibility assumptions at k=2 | A variant of AV · k=2 | axiom compatibility | Helped |
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