Haruki Nishimura

Researcher, Toyota Research Institute

2 papers at NeurIPS 2025

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Poster Session 3

1 paper

Thursday, December 4, 2025 · 11:00 AM → 2:00 PM

Exhibit Hall C,D,E

SAFE: Multitask Failure Detection for Vision-Language-Action Models

#2401 · Qiao Gu, Yuanliang Ju, Shengxiang Sun, Igor Gilitschenski, Haruki Nishimura, Masha Itkina, Florian Shkurti

Poster Session 5

1 paper

Friday, December 5, 2025 · 11:00 AM → 2:00 PM

Exhibit Hall C,D,E

STITCH-OPE: Trajectory Stitching with Guided Diffusion for Off-Policy Evaluation

#415 Spotlight · Hossein Goli, Michael Gimelfarb, Nathan Samuel de Lara, Haruki Nishimura, Masha Itkina, Florian Shkurti

We introduce STITCH-OPE, a guided-diffusion framework for off-policy evaluation that stitches short behavior-conditioned sub-trajectories, uses negative-behavior guidance to correct distribution shift, and outperforms baselines across all metrics.