3 papers
econ.TH2026
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…
econ.TH2026
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…
math.CO2026
A Note on Ordinal Submodularity
Satoru Fujishige, Ryuhei Mizutani
Notions of ordinal submodularity/supermodularity have been introduced and studied in the literature. We consider several classes of ordinally submodular functions defined on finite…