no code implementations • 16 Apr 2024 • Vincent Conitzer, Rachel Freedman, Jobst Heitzig, Wesley H. Holliday, Bob M. Jacobs, Nathan Lambert, Milan Mossé, Eric Pacuit, Stuart Russell, Hailey Schoelkopf, Emanuel Tewolde, William S. Zwicker
Foundation models such as GPT-4 are fine-tuned to avoid unsafe or otherwise problematic behavior, so that, for example, they refuse to comply with requests for help with committing crimes or with producing racist text.
1 code implementation • 30 Jan 2024 • Wesley H. Holliday, Matthew Mandelkern
Assessing LLMs on these inference patterns is thus highly relevant to the question of how much the reasoning abilities of LLMs match those of humans.
1 code implementation • 29 Jan 2024 • Wesley H. Holliday, Alexander Kristoffersen, Eric Pacuit
By classic results in social choice theory, any reasonable preferential voting method sometimes gives individuals an incentive to report an insincere preference.
1 code implementation • 11 Jan 2024 • Wesley H. Holliday
In social choice theory with ordinal preferences, a voting method satisfies the axiom of positive involvement if adding to a preference profile a voter who ranks an alternative uniquely first cannot cause that alternative to go from winning to losing.
1 code implementation • 21 Dec 2023 • Wesley H. Holliday, Eric Pacuit
In particular, we add two axioms stating that the voting method should mitigate spoiler effects and avoid the so-called strong no show paradox.
no code implementations • 22 Oct 2022 • Yifeng Ding, Wesley H. Holliday, Eric Pacuit
In this paper, we go further and show that Split Cycle is the only rule satisfying the axioms of Holliday and Pacuit together with two additional axioms: Coherent Defeat and Positive Involvement in Defeat.
2 code implementations • 14 Aug 2022 • Wesley H. Holliday, Chase Norman, Eric Pacuit, Saam Zahedian
A fundamental principle of individual rational choice is Sen's $\gamma$ axiom, also known as expansion consistency, stating that any alternative chosen from each of two menus must be chosen from the union of the menus.
no code implementations • 2 Aug 2021 • Wesley H. Holliday, Mikayla Kelley
While previous literature shows that only weakening IIA to weak IIA or only weakening negative transitivity of $P$ to acyclicity still leads to impossibility theorems, we show that jointly weakening IIA to AS rationalizability and weakening negative transitivity of $P$ leads to no such impossibility theorems.
1 code implementation • 1 Aug 2021 • Wesley H. Holliday, Eric Pacuit
We propose a new single-winner voting system using ranked ballots: Stable Voting.
no code implementations • 6 Apr 2021 • Matthew Harrison-Trainor, Wesley H. Holliday, Thomas F. Icard III
Qualitative and quantitative approaches to reasoning about uncertainty can lead to different logical systems for formalizing such reasoning, even when the language for expressing uncertainty is the same.
no code implementations • 15 Aug 2020 • Wesley H. Holliday, Eric Pacuit
We call this weakening Coherent IIA.