4 papers
Nash Core in Multiwinner Election
Ashish Goel, Zhihao Jiang, Chenghan Zhou
In the approval-based committee selection problem, a committee is said to be in the core if no subset of voters has an incentive to deviate by selecting a \emph{blocking} committee…
Multi-Selection for Recommendation Systems
Sahasrajit Sarmasarkar, Zhihao Jiang, Ashish Goel +2
We present the construction of a multi-selection model to answer differentially private queries in the context of recommendation systems. The server sends back multiple recommendat…
Metric Distortion of Small-group Deliberation
Ashish Goel, Mohak Goyal, Kamesh Munagala
We consider models for social choice where voters rank a set of choices (or alternatives) by deliberating in small groups of size at most , and these outcomes are aggregated by…
Differential Privacy with Multiple Selections
Ashish Goel, Zhihao Jiang, Aleksandra Korolova +2
We consider the setting where a user with sensitive features wishes to obtain a recommendation from a server in a differentially private fashion. We propose a ``multi-selection'' a…