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Hamsa Bastani

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titleconferencedate
LLM-Guided Reinforcement Learning for Mastery Learning: Large-Scale Field EvidenceBridging Prediction and Intervention Problems in Social Systems (Simons Institute, 2026)2026-01-12
A city-scale RCT enrolls ~1,000 Taipei high schoolers where everyone uses a GPT‑4 LLM-powered AI tutor with pedagogical guardrails and the randomization…
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Efficient and Targeted COVID-19 Border Testing via Reinforcement LearningEpidemics and Information Diffusion (Simons Institute, 2022)2022-10-24
Reinforcement learning system Eva deploys at 40 Greek entry points in summer 2020, combining passenger origin and two‑week rolling PCR results to allocate…
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Country-Scale Bandit Implementation for Targeted COVID-19 TestingMathematics of Online Decision Making 20202020-10-23
Implemented a country-scale testing system called AVA that uses an optimistic Gittins-style index with pseudo-Gittins indices (certainty-equivalent updates)…
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