Celine Lee

PhD candidate @ Cornell University, advised by Sasha Rush. I work on language modeling, with a special focus on code reasoning and generation.

Currently (Summer 2025): Student Researcher @ Google Deepmind

Previously: BSE & MSE @ University of Pennsylvania, 2020, where I worked with Dan Roth and Justin Gottschlich.

My CV and my Google Scholar.

Publications

Critical Thinking: Which Kinds of Complexity Govern Optimal Reasoning Length?
Celine Lee, Alexander M. Rush, Keyon Vafa
Under submission
Link

Commit0: Library Generation from Scratch
Wenting Zhao, Nan Jiang, Celine Lee, Justin T. Chiu, Claire Cardie, Matthias Gallé, Alexander M. Rush
ICLR 2025
Link

Sampling Language from Latent System-2 Reasoning
Celine Lee, Arafat Sultan, Tahira Naseem, Alexander M. Rush, Ramon Fernandez Astudillo
NeurIPS 2024 - System 2 Reasoning at Scale
Link

The Counterfeit Conundrum: Can Code Language Models Grasp the Nuances of Their Incorrect Generations?
Alex Gu, Celine Lee*, Wen-Ding Li*, Naman Jain*, Theo X. Olausson*, Koushik Sen, Armando Solar-Lezama
ACL 2024 - Findings
Link

Guess & Sketch: Language Model Guided Transpilation
Celine Lee, Abdulrahman Mahmoud, Michal Kurek, Simone Campanoni, David Brooks, Stephen Chong, Gu-Yeon Wei, Alexander Rush
ICLR 2024
Link

Mixture of Soft Prompts for Controllable Data Generation
Derek Chen, Celine Lee, Yunan Lu, Domenic Rosati, Zhou Yu
EMNLP 2023 - Findings
Link

Batched Vectorized Earley Parsing
Celine Lee, Alexander M. Rush
MASC-SLL 2023
Link

A Survey on Semantic Parsing for Machine Programming
Celine Lee, Justin Gottschlich, Dan Roth
KDD Workshop 2021 - PLP
Link

Patents

• METHODS AND APPARATUS TO IMPROVE DATA QUALITY FOR ARTIFICIAL INTELLIGENCE (USPTO App. No. 17/540050)
• METHODS AND APPARATUS TO TRAIN MODELS FOR PROGRAM SYNTHESIS (USPTO App. No. 17/551170)
• METHODS AND APPARATUS TO DETERMINE REFINED CONTEXT FOR SOFTWARE BUG DETECTION AND CORRECTION (USPTO App. No. 17/554918)
• METHODS, APPARATUS, AND ARTICLES OF MANUFACTURE TO GENERATE COMMAND LISTS TO BE OFFLOADED TO ACCELERATOR CIRCUITRY (USPTO App. No. 17/559556)

News

• October 2025 - I will be delivering an invited talk at the Visions Workshop @ COLM 2025.
• April 2025 - I co-organized the VerifAI: AI Verification in the Wild workshop @ ICLR 2025.
• March 2025 - I am honored to be recognized as an ML & Systems Rising Star!
• January 2025 - I will be an Adjunct Instructor at MBZUAI for the semester!
• June 2024 - I was interviewed by Jennifer Sheffield for the Cognitive Computation Group Blog. Interview link.
• October 2021 - I was interviewed by Dr. Justin Gottschlich on the Machine Programming & Technology channel. Video

Software

• Semantic Role Labeling (English) (Spanish)

Misc.

Libary of writings, zines, some arts and crafts.

Slides from past presentations here.

A running list of what-to-do ideas when you need some inspiration. Use them if that's fun for you

I like soup a lot.