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 focus on creating personalized search/recommendation systems by using LLMs to extract detailed user embeddings from interaction histories and then integrating those profiles into search—via latent-space embeddings or in-context prompts—to jointly refine query and item representations.

Previously, during my master’s program, I worked under the supervision of Cyrus Cousins and Yair Zick on AI Alignment Via Power-Mean Elicitation. Prior to my master’s, I earned a dual Bachelor’s degree in Computer Science and Environmental Science at the University of Massachusetts Amherst.