Authors

Panagiotis Theodoropoulos

Publications 2

Preprint Open access

Distributionally Robust Schrödinger Bridge

Jinhwan Sul, Panagiotis Theodoropoulos, Vincent Pacelli et al. · 2026

Schrödinger bridge (SB) learns stochastic transport between prescribed initial and target distributions. When the initial distribution shifts at test time, the learned dynamics can fail to recover the target distribution. We introduce the Distributionally Robust Schrödinger Bridge (DRSB), which learns a single controll …

Preprint Open access

Explore Broadly, Reason Sharply: Push Small Models toward the Frontier via Sampling

Panagiotis Theodoropoulos, Nan Jiang, Xintong Duan et al. · 2026

Power-sharpened sampling is an inference-time alternative to reinforcement-learning (RL) post-training for enhancing reasoning in large language models (LLMs). High-probability sequences are amplified under the base model without parameter updates or external rewards, avoiding the costly optimization and jagged general …

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