Chang Zeng

I am currently pursuing a Ph.D. in Computer Science at the University of Massachusetts Amherst, advised by Razieh Negin Rahimi. My research focuses on enhancing retrieval-augmented systems by constructing more informative representations from interaction histories and collection knowledge, and by improving model efficiency through better query parsing. I am currently working on improving the efficiency and generalizability of retrieval systems in an agentic manner.

Previously, during my master’s program, I worked under the supervision of Cyrus Cousins and Yair Zick on eliciting AI’s justifiable social criteria. Prior to my master’s, I earned a dual Bachelor’s degree in Computer Science and Environmental Science at the University of Massachusetts Amherst.