Author

Rui Ai

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#artificial intelligence Preprint Sep 2026

LLMAdBench: A Human Preference Benchmark for Advertising in LLM Responses

Inserting advertisements (ads) into consumer-facing LLM output is emerging as a new business model, but there is little shared evidence on how such ad insertion should be evaluated or how it affects user preferences. We introduce LLMAdBench, a human-preference benchmark for studying advertising in LLM-generated content...

Rui Ai, Yu-Qing Liu, Si-Tao Qiu et al. · 0 citations

#machine learning Preprint Sep 2026

Minimax-Optimal Online Contract Design with Unrestricted Bounded Contracts

We study repeated contract design when a principal observes outcomes but not the actions that generate them. The principal may use any bounded outcome-contingent payment vector, and the agent's best response can make expected profit discontinuous in those payments. For every fixed number $m\ge2$ of outcomes, the minima...

Rui Ai, David Simchi-Levi, Han Zhong · 0 citations