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Ismini Lourentzou

Assistant Professor, University of Illinois Urbana - Champaign

2 papers at NeurIPS 2025

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Poster Session 1

Wednesday, December 3, 2025 · 11:00 AM → 2:00 PM

Exhibit Hall C,D,E

Fine-Grained Preference Optimization Improves Spatial Reasoning in VLMs

#4812 · Yifan Shen, Yuanzhe Liu, Jingyuan Zhu, Xu Cao, Xiaofeng Zhang, Yixiao He, Wenming Ye, James Matthew Rehg, Ismini Lourentzou

Poster Session 5

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

Exhibit Hall C,D,E

PurpCode: Reasoning for Safer Code Generation

#2400 · Jiawei Liu, Nirav Diwan, Zhe Wang, Haoyu Zhai, Xiaona Zhou, Kiet A. Nguyen, Tianjiao Yu, Muntasir Wahed, Yinlin Deng, hadjer Benkraouda, Yuxiang Wei, LINGMING ZHANG, Ismini Lourentzou, Gang Wang

We introduce PurpCode, the first post-training recipe for training safe code reasoning models using Deliberative Alignment.