His work is at the intersection of AI for health and science, LLM reasoning, and machine learning. He is interested in building a unified AGI system that benefits for social good.
He leads the research and development of Google’s frontier foundation models in personal health including the Large Sensor Model (LSM), Personal Health Agent, Personal Health LLM (PH-LLM) and SensorLM.
Venues in dark blue; paper titles in blue; roles/remarks in red.
AI for Health
[5]
A. Ali Heydari#, Ken Gu#, Vidya Srinivas#, Hong Yu#, Zhihan Zhang, Yuwei Zhang, Akshay Paruchuri, Qian He, Hamid Palangi, Nova Hammerquist, Ahmed A. Metwally, Brent Winslow, Yubin Kim, Kumar Ayush, Yuzhe Yang, Girish Narayanswamy, Maxwell A. Xu, Jake Garrison, Amy Aremnto Lee, Jenny Vafeiadou, Ben Graef, Isaac R. Galatzer-Levy, Erik Schenck, Andrew Barakat, Javier Perez, Jacqueline Shreibati, John Hernandez, Anthony Z. Faranesh, Javier L. Prieto, Connor Heneghan, Yun Liu, Jiening Zhan, Mark Malhotra, Shwetak Patel, Tim Althoff, Xin Liu$, Daniel McDuff$, Xuhai Xu$
Justin Khasentino#, Anastasiya Belyaeva#$, Xin Liu #$, Zhun Yang#, Nicholas A. Furlotte#, Chace Lee, Erik Schenck, Yojan Patel, Jian Cui, Logan Douglas Schneider, Robby Bryant, Ryan G. Gomes, Allen Jiang, Roy Lee, Yun Liu, Javier Perez, Jameson K. Rogers, Cathy Speed, Shyam Tailor, Megan Walker, Jeffrey Yu, Tim Althoff, Conor Heneghan, John Hernandez, Mark Malhotra, Leor Stern, Yossi Matias, Greg S. Corrado, Shwetak Patel, Shravya Shetty, Jiening Zhan, Shruthi Prabhakara, Daniel McDuff$, Cory Y. McLean$
A Personal Health Large Language Model for Sleep and Fitness Coaching
Mike A. Merrill #, Akshay Paruchuri #, Naghmeh Rezaei, Geza Kovacs, Javier Perez, Yun Liu, Erik Schenck, Nova Hammerquist, Jake Sunshine, Shyam Tailor, Kumar Ayush, Hao-Wei Su, Qian He, Cory Y. McLean, Mark Malhotra, Shwetak Patel, Jiening Zhan, Tim Althoff $, Daniel McDuff $, Xin Liu $
Transforming Wearable Data into Health Insights Using Large Language Model Agents
$ Equal Leadership, Corresponding Author# Equal Contribution, Primary host of the first authors.Incorporated in a Google product.
[2]
Shun Liao #, Paolo Di Achille #, Jiang Wu #, Silviu Borac #, Jonathan Wang #, Xin Liu #, Eric Teasley #, Lawrence Cai, Yun Liu, Daniel McDuff, Hao-Wei Su, Brent Winslow, Anupam Pathak, Shwetak Patel, Jameson K. Rogers, Ming-Zher Poh
Passive Heart Rate Monitoring During Smartphone Use in Everyday Life
Gheorghe Comanici, Eric Bieber, Mike Schaekermann, Ice Pasupat, Noveen Sachdeva, Inderjit Dhillon, Marcel Blistein, Ori Ram, Dan Zhang, Evan Rosen, ... Xin Liu, ...
Gemini 2.5: Pushing the Frontier with Advanced Reasoning, Multimodality, Long Context, and Next Generation Agentic Capabilities
Core contributor of tabular reasoning and data science reasoning.
[3]
Ken Gu, Zhihan Zhang, Kate Lin, Yuwei Zhang, Akshay Paruchuri, Hong Yu, Mehran Kazemi, Kumar Ayush, A Ali Heydari, Maxwell A Xu, Girish Narayanswamy, Yun Liu, Ming-Zher Poh, Yuzhe Yang, Mark Malhotra, Shwetak Patel, Hamid Palangi, Xuhai Xu, Daniel McDuff, Tim Althoff, Xin Liu
RADAR: Benchmarking Language Models on Imperfect Tabular Data
Integrated in Gemini. Primary host of the first author.
[2]
Mehran Kazemi, Bahare Fatemi, Hritik Bansal, John Palowitch, Chrysovalantis Anastasiou, Sanket Vaibhav Mehta, Lalit K. Jain, Virginia Aglietti, Disha Jindal, Peter Chen, Nishanth Dikkala, Gladys Tyen, Xin Liu, Uri Shalit, Silvia Chiappa, Kate Olszewska, Yi Tay, Vinh Q. Tran, Quoc V. Le, Orhan Firat
$ Equal Leadership, Corresponding Author. Primary host of the first author.
Machine Learning
[5]
Maxwell A. Xu #, Girish Narayanswamy #, Kumar Ayush, Dimitris Spathis, Shun Liao, Shyam A. Tailor, Ahmed Metwally, A. Ali Heydari, Yuwei Zhang, Jake Garrison, Samy Abdel-Ghaffar, Xuhai Xu, Ken Gu, Jacob Sunshine, Ming-Zher Poh, Yun Liu, Tim Althoff, Shrikanth Narayanan, Pushmeet Kohli, Mark Malhotra, Shwetak Patel, Yuzhe Yang, James M. Rehg, Xin Liu $, Daniel McDuff $
LSM-2: Learning from Incomplete Wearable Sensor Data
$ Equal Leadership, Corresponding Author# Equal Contribution, Co-host of the first authors.
[4]
Yuwei Zhang #, Kumar Ayush #, Siyuan Qiao, A. Ali Heydari, Girish Narayanswamy, Maxwell A. Xu, Ahmed A. Metwally, Shawn Xu, Jake Garrison, Xuhai Xu, Tim Althoff, Yun Liu, Pushmeet Kohli, Jiening Zhan, Mark Malhotra, Shwetak Patel, Cecilia Mascolo, Xin Liu, Daniel McDuff, Yuzhe Yang
SensorLM: Learning the Language of Wearable Sensors
