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PhD Thesis Defense

PhD Thesis Defense: Rajarshi Bhattacharjee, Query Efficient Algorithms for Matrix Spectrum Approximation

This thesis develops and analyzes algorithms for several key problems related to eigenvalue and eigenvector estimation.
Event date Tuesday, July 14, 2026 Event time 11:00 am Go to all events list Event

PhD Thesis Defense: Spencer Lane, Tools for Aggregating, Filtering, Sorting, and Auditing Social Media

This dissertation argues for a different approach to sorting and filtering social media feeds.
Event date Monday, March 30, 2026 Event time 10:00 am Go to all events list Event

PhD Thesis Defense: Prasanna Subramanyam, A Computational Approach To Understanding Online Community Dynamics and Opinion

This research advances methodologies for analyzing content from online datasets, interpreting intent, retrieving knowledge, and leveraging these insights.
Event date Friday, August 7, 2026 Event time 1:00 pm Go to all events list Event

PhD Thesis Seminar: Tanya Chowdhury, Interpreting Ranking Models: From Feature Attributions to Mechanistic Comprehension

In this defense, I outline a program to move from post-hoc explanations toward a principled science of reverse-engineering LLM internals.
Event date Tuesday, April 21, 2026 Event time 1:00 pm Go to all events list Event

PhD Thesis Defense: Charles Cao, Ultrasonic Sensing Systems: From Hardware Design to Interactive and Physiological Applications

This research investigates the design and implementation of ultrasonic sensing systems that allow everyday devices to perceive and interpret signals beyond the
Event date Monday, May 4, 2026 Event time 9:00 am Go to all events list Event

PhD Thesis Defense: Deep Chakraborty, Understanding, Improving, and Applying Self-Supervised Neural Representations

This thesis studies questions from three complementary perspectives for real-world scenarios.
Event date Thursday, May 7, 2026 Event time 10:00 am Go to all events list Event

PhD Thesis Defense: Aimen Gaba, Design and User Identity in Shaping Perception and Trust of AI Systems

This dissertation argues that how people perceive and interpret bias in AI outputs is shaped by how the outputs are presented and who is interpreting them.
Event date Monday, May 4, 2026 Event time 3:00 pm Go to all events list Event

PhD Thesis Defense: Nigel Fernandez, Natural Language Processing for Scalable Educational Assessment and AI Systems

This dissertation investigates how NLP methods can enable scalable educational assessment and AI systems across key components of the educational pipeline.
Event date Tuesday, May 5, 2026 Event time 11:00 am Go to all events list Event

PhD Thesis Defense: Shib Dasgupta, Box Embeddings as Set-theoretic Representations for Information Retrieval and Recommender Systems

I develop a Gumbel random process-based approach that improves the optimization  landscape, resulting in a more stable and expressive variant of Box Embedding.
Event date Friday, August 8, 2025 Event time 2:00 pm Go to all events list Event

PhD Thesis Defense: Abhinav Bhatia, Learning to Think about Thinking: Metareasoning with Deep Reinforcement Learning for Efficient and Safe Decision-Making

This thesis significantly generalizes the scope of metareasoning.
Event date Wednesday, May 13, 2026 Event time 4:00 pm Go to all events list Event

PhD Thesis Defense: Yixiao Song, Advancing AI Factuality via Comprehensive Evaluation

This thesis develops scalable, accurate tools and benchmarks for factuality assessment that set higher standards for AI evaluation.
Event date Wednesday, August 27, 2025 Event time 10:00 am Go to all events list Event

PhD Thesis Defense: Brett Mullins, Practical Algorithms for Differentially Private Marginal Query Answering

This thesis develops and analyzes principled, efficient, and scalable algorithms for answering marginal queries.
Event date Tuesday, May 26, 2026 Event time 9:00 am Go to all events list Event

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