Liv G. d'Aliberti

Room 320C, the Messiest Cubicle

Sherrerd Hall

Princeton, NJ, 08544

Advised by Manoel Horta Ribeiro and affiliated with the Humans and Machines (HAM) Lab and Center for Information Technology Policy, I study how learned agents reason, decide, and change behavior, focusing on reliability, interpretability, and empirically grounded evaluation at scale.

research
- Reinforcement learning
- Machine learning
- Reliable reasoning
current threads
- RLVR solution diversity
- Judgemental forecasting
- Agentic misalignment
previous life
- Government R&D
- Privacy
- Autonomy

Prior to starting my Ph.D., I worked as a research scientist at Leidos in their CTO Office Artificial Intelligence & Machine Learning Accelerator. I am also a Lecturer in Computer Science at Johns Hopkins Engineering for Professionals, where I teach courses in modern Python software development and deep learning with PyTorch. I earned my Master of Science in Applied Mathematics and Statistics in 2019.

I really like all cats and one dog, my wife’s cavapoo. When I’m offline, I’m usually hiking, backpacking, skiing, or exploring new places.

news

Oct 08, 2026	Preprint released: Measuring and Mitigating Solution Mode Collapse in RLVR, accepted to MATH-AI at NeurIPS 2026.
Jun 17, 2026	Workshop paper accepted at AutoRL at RLC 2026: Behavior-Consistent Deep Reinforcement Learning.
May 26, 2026	I passed my Princeton C.S. generals exam!
May 20, 2026	Preprint released: Behavior-Consistent Deep Reinforcement Learning.
Apr 06, 2026	Paper accepted to Findings of ACL: The Illusion of Insight in Reasoning Models.

selected publications

MATH-AI

Measuring and Mitigating Solution Mode Collapse in RLVR

Liv G. d’Aliberti , Marwa Abdulhai , Sofiia Druchyna, and 2 more authors

In The 6th Workshop on Mathematical Reasoning and AI at NeurIPS 2026, Dec 2026

Accepted to MATH-AI at NeurIPS 2026

Abs arXiv Paper Bib

@inproceedings{daliberti2026measuringmitigatingsolutionmodecollapse,
  title = {Measuring and Mitigating Solution Mode Collapse in RLVR},
  author = {d'Aliberti, Liv G. and Abdulhai, Marwa and Druchyna, Sofiia and Henderson, Peter and Horta Ribeiro, Manoel},
  booktitle = {The 6th Workshop on Mathematical Reasoning and AI at NeurIPS 2026},
  year = {2026},
  month = dec,
  eprint = {2610.11064},
  archiveprefix = {arXiv},
  primaryclass = {cs.LG},
  url = {https://arxiv.org/abs/2610.11064},
  paper = {https://arxiv.org/abs/2610.11064},
  note = {Accepted to MATH-AI at NeurIPS 2026},
}

AutoRL

Behavior-Consistent Deep Reinforcement Learning

Marcel Hussing , Liv G. d’Aliberti , Claas Voelcker, and 2 more authors

In Workshop on Automated Reinforcement Learning at RLC, Dec 2026

Accepted

arXiv Post Bib

@inproceedings{hussing2026behaviorconsistentdeepreinforcementlearning,
  title = {Behavior-Consistent Deep Reinforcement Learning},
  author = {Hussing, Marcel and d'Aliberti, Liv G. and Voelcker, Claas and Eysenbach, Benjamin and Eaton, Eric},
  booktitle = {Workshop on Automated Reinforcement Learning at RLC},
  year = {2026},
  eprint = {2605.21214},
  archiveprefix = {arXiv},
  primaryclass = {cs.LG},
  url = {https://arxiv.org/abs/2605.21214},
  post = {https://x.com/livdaliberti/status/2057876641653670026},
  note = {Accepted},
}

ACL Findings

The Illusion of Insight in Reasoning Models

Liv G. d’Aliberti and Manoel Horta Ribeiro

In Findings of the Association for Computational Linguistics: ACL 2026, Jul 2026

DOI arXiv Post Paper Bib Code Poster

@inproceedings{daliberti2026illusioninsightreasoningmodels,
  title = {The Illusion of Insight in Reasoning Models},
  author = {d'Aliberti, Liv G. and Horta Ribeiro, Manoel},
  booktitle = {Findings of the Association for Computational Linguistics: ACL 2026},
  year = {2026},
  month = jul,
  address = {San Diego, California, United States},
  publisher = {Association for Computational Linguistics},
  pages = {924--966},
  doi = {10.18653/v1/2026.findings-acl.47},
  eprint = {2601.00514},
  archiveprefix = {arXiv},
  primaryclass = {cs.AI},
  url = {https://aclanthology.org/2026.findings-acl.47/},
  paper = {https://aclanthology.org/2026.findings-acl.47/},
  post = {https://x.com/manoelribeiro/status/2008261102853857393},
}

IEEE Aerospace

Explainability for Unmanned Aerial Vehicle Control via Multi-Objective Reinforcement Learning

Christian A. Clark , Kevin M. Albarado , Joshua P. Wilson, and 3 more authors

In 2025 IEEE Aerospace Conference, Jul 2025

DOI Paper Bib

@inproceedings{11068676,
  author = {Clark, Christian A. and Albarado, Kevin M. and Wilson, Joshua P. and Bernard, Cedric A. and Scott, Jackson D. and D'Aliberti, Liv},
  booktitle = {2025 IEEE Aerospace Conference},
  title = {Explainability for Unmanned Aerial Vehicle Control via Multi-Objective Reinforcement Learning},
  year = {2025},
  volume = {},
  number = {},
  pages = {1-15},
  keywords = {Training;Command and control systems;Visualization;Reinforcement learning;Production;Autonomous aerial vehicles;Robustness;Fuels;Standards;Optimization},
  doi = {10.1109/AERO63441.2025.11068676},
  paper = {https://ieeexplore.ieee.org/document/11068676},
}