Publications

First-author work spanning large language models for mental health, fairness-aware learning, medical imaging, and aging research. Also on Google Scholar.

2026

ARVO 2026

Attention-enhanced ensemble learning achieves robust detection of referable diabetic retinopathy across heterogeneous fundus image sources

Xu, J., Kshirsagar, G., Lanza, G., Sesti, R., Chace, P., Winslow, R.

The 55th ARVO Annual Meeting, Denver, Colorado, USA

2025

KDD ’25 Oral 62+ citations

MentalChat16K: A Benchmark Dataset for Conversational Mental Health Assistance

Xu, J., Wei, T., Hou, B., Yang, S., Jin, R., Paulbeck, R., Wagenaar, J., Demiris, G., Shen, L.

Proceedings of the 31st ACM SIGKDD Conference on Knowledge Discovery and Data Mining V.2 (KDD ’25), pp. 5367–5378

DOI Dataset Code

2025

IJMI

Modeling the impact of socioeconomic disparity, biological markers and environmental exposures on phenotypic age using mediation analysis and structural equation models

Pala, D., Xu, J., Xie, Y., Shen, L.

International Journal of Medical Informatics

Paper

2024

AMIA 2024 Podium

MentalGPT: Harnessing AI for Compassionate Mental Health Support

Xu, J., Wei, T., Hou, B., Demiris, G., Shen, L.

AMIA Annual Symposium, Podium Abstract

Abstract

2024

AAIC 2024

Revolutionizing Dementia Care: Enhancing Talk Therapy with Fine-Tuned Large Language Models Using GPT Self-Generated Data

Xu, J., Wei, T., Hou, B., Demiris, G., Shen, L.

Alzheimer’s Association International Conference 2024

Abstract

2024

IHSC

Identifying biological markers and sociodemographic factors that influence the gap between phenotypic and chronological ages

Pala, D., Xu, J., Xie, Y., Zhang, Y., Shen, L.

Informatics for Health and Social Care

Paper

2023

NeurIPS 2023 15+ citations

Fair Canonical Correlation Analysis

Zhou, Z., Tarzanagh, D. A., Hou, B., Tong, B., Xu, J., Feng, Y., Long, Q., Shen, L.

NeurIPS 2023, Main Track & Poster

Paper Code

2023

IEEE BIBM 2023

Causal Effects of Environmental Exposures and Biological Traits on the Difference between Phenotypic and Chronological Ages

Pala, D., Xie, Y., Xu, J., Zhang, Y., Shen, L.

IEEE BIBM 2023 Workshop: 13th International Workshop on Biomedical and Health Informatics

Paper

2023

AMIA 2023

Identification of the Most Determinant Demographic and Biological Factors for the Phenotypic and Chronological Age Difference Prediction in the NHANES Cohort

Xu, J., Xie, Y., Zhang, Y., Pala, D., Shen, L.

AMIA 2023 Informatics Summit

Earlier Work

2023

ICIBM 2023

Clustering Alzheimer’s Disease Subtypes via Similarity Learning and Graph Diffusion

Wei, T., Yang, S., Tarzanagh, D. A., Bao, J., Xu, J., Orzechowski, P., Wagenaar, J., Long, Q., Shen, L.

International Conference on Intelligent Biology and Medicine

arXiv

2022

Journal

Simplified analysis of MHD flow in a porous surrounding bounded by an oscillating vertical cylindrical surface

Wu, Y., Xu, J.

Mathematical modeling with radiation effects under a transverse magnetic field