A Truth Serum for Eliciting Self-Evaluations in Scientific Reviews

Jibang Wu, Haifeng Xu, Yifan Guo and Weijie Su

Papers from arXiv.org

Abstract: This paper designs a simple, efficient and truthful mechanism to to elicit self-evaluations about items jointly owned by owners. A key application of this mechanism is to improve the peer review of large scientific conferences where a paper often has multiple authors and many authors have multiple papers. Our mechanism is designed to generate an entirely new source of review data truthfully elicited from paper owners, and can be used to augment the traditional approach of eliciting review data only from peer reviewers. Our approach starts by partitioning all submissions of a conference into disjoint blocks, each of which shares a common set of co-authors. We then elicit the ranking of the submissions from each author and employ isotonic regression to produce adjusted review scores that align with both the reported ranking and the raw review scores. Under certain conditions, truth-telling by all authors is a Nash equilibrium for any valid partition of the overlapping ownership sets. We prove that to ensure truthfulness for such isotonic regression based mechanisms, partitioning the authors into blocks and eliciting only ranking information independently from each block is necessary. This leave the optimization of block partition as the only room for maximizing the estimation efficiency of our mechanism, which is a computationally intractable optimization problem in general. Fortunately, we develop a nearly linear-time greedy algorithm that provably finds a performant partition with appealing robust approximation guarantees. Extensive experiments on both synthetic data and real-world conference review data demonstrate the effectiveness of this owner-assisted calibration mechanism.

Date: 2023-06, Revised 2024-02
New Economics Papers: this item is included in nep-des and nep-gth
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