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UID:828@lincs.fr
DTSTART;TZID=Europe/Paris:20240410T140000
DTEND;TZID=Europe/Paris:20240410T150000
DTSTAMP:20240423T092139Z
URL:https://www.lincs.fr/events/level-strategyproof-belief-aggregation-mec
 hanisms/
SUMMARY:Level-strategyproof Belief Aggregation Mechanisms
DESCRIPTION:In the problem of aggregating experts' probabilistic
 predictions over an ordered set of outcomes\, we introduce the axiom of
 level-strategy\\-proofness (level-SP) and prove that it is a natural notion
 with several applications. Moreover\, it is a robust concept as it implies
 incentive compatibility in a rich domain of single-peakedness over the
 space of cumulative distribution functions (CDFs). This contrasts with the
 literature which assumes single-peaked preferences over the space of
 probability distributions. Our main results are: (1) a reduction of our
 problem to the aggregation of CDFs\; (2) the axiomatic characterization of
 level-SP probability aggregation functions with and without the addition of
 other axioms\; (3) impossibility results which provide bounds for our
 characterization\; (4) the axiomatic characterization of two new and
 practical level-SP methods: the proportional-cumulative method and the
 middlemost-cumulative method\; and (5) the application of
 proportional-cumulative to extend approval voting\, majority rule\, and
 majority judgment methods to situations where voters/experts are uncertain
 about how to grade the candidates/alternatives to be ranked.
CATEGORIES:Seminars,Youtube
LOCATION:Room 4B01\, 19 place Marguerite Perey\, Palaiseau\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=19 place Marguerite Perey\,
 Palaiseau\, France;X-APPLE-RADIUS=100;X-TITLE=Room 4B01:geo:0,0
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TZID:Europe/Paris
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DTSTART:20240331T030000
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