Momin Ahmad Khan
Knowles Engineering Building
151 Holdsworth Way
Amherst, MA 01003
I am a fifth-year PhD student at UMass Amherst, advised by Professor Fatima Anwar. My research spans the security and robustness of distributed AI systems, large language models (LLMs), and vision-language models (VLMs). I’ve worked on designing attacks and defenses for Federated Learning (FL), identifying pitfalls in robustness evaluations, and improving prompt learning through more reliable and interpretable optimization techniques.
Recently, I completed my second internship at Nokia Bell Labs, where I focused on mechanistic interpretability for embodied AI agents—probing perception-action loops using sparse autoencoders and grounded representations. In my first internship at Bell Labs, I developed agentic LLM systems for model selection and code generation, and built a smart meeting assistant integrating LLMs, VLMs, and hardware. I’m currently exploring techniques like DPO and GRPO to enhance grounding and alignment in VLMs and multi-agent settings.
Before joining UMass, I completed my undergraduate studies in Electrical Engineering at the School of Electrical Engineering and Computer Science at the National University of Sciences and Technology in 2021. I graduated with a gold medal for best thesis project and a silver medal for the second-highest GPA in my batch.
Besides work, I am learning to play the guitar. I love to travel alone, and I have started a photography page to document my adventures. I enjoy cooking and continue to try out new recipes. But most of all, I love playing Dota 2, and I am in the top 10% of players globally!
news
| Sep 22, 2025 | Our work, Controlling Vision–Language–Action Policies through Sparse Latent Directions, is accepted to the Mechanistic Interpretability Workshop at NeurIPS 2025! |
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| Jul 8, 2025 | Our new preprint Decoding FL Defenses: Systemization, Pitfalls, and Remedies is out! |
| Jun 10, 2025 | Our new preprint SABRE-FL: Selective and Accurate Backdoor Rejection for Federated Prompt Learning is out! |
| Jun 2, 2025 | I returned to Nokia Bell Labs as a Research Intern |
| Sep 25, 2024 | Our work, Hybrid Knowledge Distillation for Robust and Accurate FL (HYDRA-FL) is accepted to Neurips 2024! |
selected publications
- MechInterp@NeurIPSControlling Vision–Language–Action Policies through Sparse Latent DirectionsIn 39th Conference on Neural Information Processing Systems (NeurIPS 2025), 2025
- NeurIPSHYDRA-FL: Hybrid Knowledge Distillation for Robust and Accurate Federated LearningIn 38th Conference on Neural Information Processing Systems (NeurIPS 2024), 2024
- Under-review
- Under-review
- SenSys
- IEEE DLSPOn the Pitfalls of Security Evaluation of Robust Federated LearningIn 2023 IEEE Security and Privacy Workshops (SPW), 2023