Research

We develop scalable, multisensory, and generative AI that translates scientific insight into practical tools for medicine and health.


Research Overview

Personal Health Intelligence

AI that helps people understand, reason, and improve individual physiology, behavior, disease trajectories, and interventions.


Research Directions

AI for Medicine and Science

We develop AI methods that turn complex health data into clinical insight and scientific discovery. Our work studies early diagnosis, disease severity, progression, phenotypes, and treatment response across neurological disease, sleep, mental health, cardiometabolic health, and clinical imaging.

Insulin resistance prediction

Insulin Resistance Prediction

Predicting insulin resistance from wearables and routine blood biomarkers.

Nature 2026
AI biomarkers for Parkinson disease

AI Biomarkers for Parkinson's Disease

Passive disease detection and assessment from nocturnal breathing signals.

Nature Medicine 2022
Medical vision-language model fairness

Medical Vision-Language Models

Auditing expert-level foundation models for disease detection across populations.

Science Advances 2025

Multisensory Foundation Models

We build general-purpose models that learn from heterogeneous multisensory signals of humans, including wearable sensors, sleep, motion, glucose, physiology, imaging, natural language, and more. These models support transfer across tasks, devices, cohorts, time, and clinical settings.

SleepLM

Sleep-Language Models (SleepLM)

Natural-language intelligence for human sleep from physiological time series.

ICML 2026 Spotlight
Open Sleep Foundation Models

Open Sleep Foundation Models (OSF)

Open foundation models for sleep representation learning and transfer.

ICML 2026
SensorLM

Sensor-Language Models (SensorLM)

Learning the language of wearable sensors through large-scale sensor-text pretraining.

NeurIPS 2025
Large sensor models

Large Sensor Models (LSM)

Scaling laws and generalization behavior for foundation models over wearable data.

ICLR 2025

Personal Health Intelligence

We design AI systems that reason over individual physiology, daily context, and longitudinal data to support personalized health insight. Our goal is to model individual baselines, detect meaningful deviations, forecast risk, and support personalized monitoring, intervention, coaching, and treatments.

Everyday passive health sensing

Everyday Passive Health Sensing

Physiological monitoring from remote visual and ambient signals.

Nature 2026
HEARTS health time-series reasoning

Health Reasoning over Time Series (HEARTS)

Benchmarking language-model reasoning over health time series.

ICML 2026
Personal Health Agent

Personal Health Agent

Agentic systems that organize longitudinal personal health data and reasoning.

arXiv 2025

AI Agents and Human-AI Ecosystem

We study interactive AI systems that can move from passive prediction to active reasoning and action: reading data, using tools, checking evidence, running analyses, and interacting with researchers, clinicians, and people.

AI Co-Data-Scientist

AI Co-Data-Scientist (CoDaS)

Agentic biomarker discovery from wearable sensors and health data.

arXiv 2026
RADAR benchmark

RADAR

Benchmarking language models on imperfect, messy tabular data.

NeurIPS 2025

Generative and Physical AI for Health

We develop generative and physical AI systems that model the structure, dynamics, and variation of human health data. Our work studies physiological rhythms, embodied signals, intervention-driven representations, and health world models to support simulation, generation, and robust health understanding.

Raptor medical volume embeddings

Raptor

Scalable train-free embeddings for 3D medical volumes using pretrained 2D foundation models.

ICML 2025 Spotlight
SimPer periodic signals

SimPer

Self-supervised learning for periodic targets from ubiquitous physiological sensors.

ICLR 2023 Oral

Trustworthy and Deployable Health AI

Health AI must work across populations, hospitals, devices, and real-world data conditions. We study fairness, robustness, missingness, distribution shift, interpretability, and deployment-centered evaluation to make health AI more reliable and generalizable.

The limits of fair medical imaging AI

The Limits of Fair Medical Imaging AI

Understanding when clinical AI fails under real-world distribution shifts.

Nature Medicine 2024
Computational pathology demographic bias

Demographic Bias in Computational Pathology

Auditing demographic bias and misdiagnosis in pathology foundation models.

Nature Medicine 2024
SubpopBench

SubpopBench

Benchmarking subpopulation shift across real-world datasets and algorithms.

ICML 2023
Deep imbalanced regression

Deep Imbalanced Regression

Learning continuous targets under severe label imbalance and distribution shift.

ICML 2021 Oral