Hello! I'm an Applied Scientist at Amazon, where I build and evaluate agentic AI systems. My current work focuses on user simulation: building agentic "twins" of users. I completed my PhD at Penn State University, advised by Prof. Dongwon Lee in the PIKE research group, and was a Visiting Scholar at New York University in Prof. He He's group. My PhD research focused on machine-generated text detection, authorship attribution, and obfuscation for Large Language Models (LLMs), and on what does or doesn't make LLM-generated text "human-like." Along the way, I was a research intern at Google, Samsung Research America, and Cadence Design Systems, building RL, NLP, and ML solutions for dialogue-based recommenders, voice assistants, and hardware design layouts. I'm broadly curious about cognitively plausible architectures for language applications, and always happy to connect.
News
Oct 2026 Presenting AgenTwin: An End-to-End Framework for Building Agentic Twins of Mobile Users at the COLM 2026 Workshop on Agent Behavior
Feb 2025 Joined Amazon as an Applied Scientist
Jan 2025 CollabStory: Multi-LLM Collaborative Story Generation and Authorship Analysis accepted to NAACL Findings 2025
Dec 2024 Completed my PhD at Penn State University
Earlier news
Jun 2024 New preprint titled CollabStory: Multi-LLM Collaborative Story Generation and Authorship Analysis is available on arXiv
May 2024 Paper on paraphrased text authorship titled A Ship of Theseus: Curious Cases of Paraphrasing in LLM-Generated Texts accepted to ACL 2024
Apr 2024 Attended the Women in Cybersecurity Conference WiCyS in Nashville, TN
Mar 2024 Won the Graduate Student Award for Excellence in Teaching Support (College of IST, Penn State) 2023-2024 for the course "Socially Responsible Artificial Intelligence"
Mar 2024 Paper on using statistical psycholinguistic features to detect Deepfake Texts, GPT-who: An Information Density-based Machine-Generated Text Detector, accepted to NAACL Findings 2024
Mar 2024 Paper titled ClassInSight: Designing Conversation Support Tools to Visualize Classroom Discussion for Personalized Teacher Professional Development accepted to CHI 2024
Feb 2024 Paper on authorship obfuscation using syntactic stylometry titled ALISON: Fast and Effective Stylometric Authorship Obfuscation at AAAI 2024
Dec 2023 Outstanding Paper Award for The Sentiment Problem: A Critical Survey towards Deconstructing Sentiment Analysis at EMNLP 2023
Nov 2023 New preprint titled A Ship of Theseus: Curious Cases of Paraphrasing in LLM-Generated Texts is available on arXiv
Oct 2023 Tutorial titled Catch Me If You GPT: Tutorial on Deepfake Texts accepted to NAACL 2024
May 2023 Paper on evaluation of decoding algorithms titled How do decoding algorithms distribute information in dialogue responses? at EACL Findings 2023
Experience
Building and evaluating agentic AI systems, with a focus on user simulation.
Built a recommender dialogue agent using hierarchical Soft Actor-Critic for a hybrid action space, learning user preferences through conversation and suggesting marketplace items. Ran ablations on agent design and simulated data using TF-Agents and Google Vizier.
Built an NLU intent-to-action service for Bixby using semantic similarity and word embeddings. Deployed it as a REST API and integrated it end-to-end with mobile devices.
Built ML pipelines for proprietary chip layout images and a hierarchical clustering prototype for assisted labeling, reaching 75% accuracy across four abstraction levels.
Research
COLM 2026 Workshop on Agent Behavior
[paper]
ACL 2024
[paper]
CHI 2024
[paper]
Tutorials
- Catch Me If You GPT: Tutorial on Deepfake Texts NAACL 2024
- Tutorial on Artificial Text Detection INLG 2022
Beyond Research
Support for students. As a first-generation student, I know college and graduate school bring challenges that aren't always visible to others, from financial concerns to simply feeling out of place. I've also navigated advisor transitions during my PhD; James McLaughlin's post "When your advisor leaves" is a useful starting point if you're in a similar situation. If you're facing any of these challenges, feel free to reach out by email. I'm happy to help.
Other interests. In my free time, I enjoy running, biking, snowboarding, and listening to and collecting vinyl records. In another life, I was a singer trained in Indian Classical Vocals and part of an a cappella group.
CV
You can download my CV here.