My primary appointment is with the Computer Science department at the University of Arizona. I have a courtesy appointment with Linguistics and Cognitive Science. Before Arizona, I was a research scientist in the NLP group at Stanford and chief scientist of Lex Machina. I did my PhD in computer science at Southern Methodist University.

I work on natural language processing, that is, building computer systems that process and extract meaning from natural language texts. I focus mostly on interpretable models, i.e., approaches where the computer can explain in human understandable terms why it made a decision. I am particularly interested in neuro-symbolic approaches that combine neural systems, such as large language models, with interpretable symbolic methods, such as deterministic rules.

For mode details about my work, please visit our research group's page. For more on natural language processing (NLP) work at University of Arizona, please see our NLP cluster page.