Linear Social Choice with Few Queries: A Moment-Based Approach
Most social choice rules assume access to full rankings, while current alignment practice -- despite aiming for diversity -- typically treats voters as anonymous and comparisons as independent, effectively extracting only about one bit per voter. Motivated by this gap, we study social choice under an extreme communication budget in the linear social choice model, where each voter's utility is the inner product between a latent voter type and the embedding of the context and candidate. The candidate and voter spaces may be very large or even infinite. Our core idea is to model the electorate as an unknown distribution over voter types and to recover its moments as informative summary stati...
| Authors | Luise Ge, Daniel Halpern, Gregory Kehne et al. |
|---|---|
| Primary category | cs.GT |
| Published | 19 March 2026 |
| Last updated at source | 19 March 2026 |
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