5 papers
Scoring Rules as Least-Squares Estimators
Satoru Fujishige, Satoshi Nakada
Kawada (2018) proved that every scoring rule is equivalent to the corresponding cosine similarity rule. The original proof relies on a direct analysis of the cosine similarity opti…
Note on an Axiomatization of the Baldwin Rule
Leo Goto, Satoshi Nakada
Goto and Nakada (2026) showed that the Baldwin rule can be characterized using Neutrality, Bottom Consistency, Faithfulness, Cancellation and Bottom Independence. While their proof…
Peak-Robust Voting Rules
Satoshi Nakada, Toshiya Yoshimura
This paper proposes new robustness criteria for social choice correspondences under single-peaked preferences, inspired by the concepts of robustness in statistical estimation, whe…
Recursive Borda Aggregation
Leo Goto, Satoshi Nakada
We study a new class of voting rules, recursive Borda rules, in which the Borda criterion is applied recursively through successive elimination decisions rather than in a single st…
A New Method for Finding the Schulze Winner Set
Satoru Fujishige, Leo Goto, Satoshi Nakada
We propose a new voting algorithm based on the pairwise majority-comparison matrix derived from voters' preference profiles. We show that this algorithm induces exactly the winner…