James Flemings
Los Angeles, CA
Hello! I am a fifth-year CS PhD student at the University of Southern California advised by Murali Annavaram in the SCIP (Super Computing In Pocket) lab. I’m graciously funded by the NSF Graduate Research Fellowship. My research addresses privacy concerns in Large Language Models (LLMs). My research aims to make Large Language Models (LLMs) safe to train and deploy on sensitive data. I work along two complementary directions: (1) developing formal, provable guarantees for the data used to train and query LLMs, (2) aligning LLM agents towards privacy, security, and safety properties.
Previously, I interned at Google in the Federated Learning and Analytics team during Summer 2025, investigating personalized privacy in agents. I also interned at TikTok during Summer 2024 in the Privacy Innovation Lab, exploring hallucination and privacy in langauge models. Before graduate school, I received my BS in computer science and mathematics at the University of Alaska Anchorage in 2022. While there, I pursued research in a wide range of areas, including monochromatic colorings, charged coupled devices, federated learning, and out of distribution data performance in language models.
News
| Oct 09, 2026 | Our paper “PrivacySIM: Evaluating LLM Simulation of User Privacy Behavior” received the best paper honarable mention at HAIPS @ COLM 2026! |
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| Sep 25, 2026 | Our paper “PrivacySIM: Evaluating LLM Simulation of User Privacy Behavior” has been accepted to NeurIPS 2026 ED Track! |
| Jul 26, 2026 | Our paper “PrivacySIM: Evaluating LLM Simulation of User Privacy Behavior” has been accepted to HAIPS @ COLM 2026 as an Oral talk! |
| Feb 01, 2026 | Our paper “Personalizing Agent Privacy Decision via Logical Entailment” has been accepted to PETS 2026! |
| Jan 26, 2026 | Our paper “Hubble: a Model Suite to Advance the Study of LLM Memorization” has been accepted to ICLR 2026! |
Selected Publications
- PETSPersonalizing Agent Privacy Decisions via Logical EntailmentProceedings of Privacy Enhancing Technologies, 2026