My research lies at the intersections of machine learning, natural language processing, and social media. I direct the NLP X Lab which currently focuses on (1) large language models, such as cultural bias, multilingual capability, temporal shifts, and personalization; (2) text generation, such as constrained decoding and learnable evaluation metric; and (3) interdisciplinary NLP applications that can make impact in education, security, accessibility, etc. I received the NSF CAREER Award, Faculty Research Awards from Google, Sony, and Criteo, CrowdFlower AI for Everyone Award, Best Paper Awards at COLING'18 and ACL'24, as well as research funds from DARPA and IARPA. I am a member of NAACL executive board.