Research

This page lists my research projects and publications.

Publications and Preprints

• A. Roy, J Chen, X. Zhang. A general framework for powerful confounder adjustment in omics association studies Bioinformatics, 2023.
• A Roy, X Zhang. Powerful large scale inference in high dimensional mediation analysis Plos Computational Biology, 2026.
• A Roy, Jiuyao Lu, G satten, N Zhao. DTH: A nonparametric test for homogeneity of multivariate dispersions. Bioinformatics, 2026.
• A Roy, H Zhou, N Zhao, X Zhang. Subsampling based tests in Mediation analysis.

In Progress

• A Roy, R Li, B Grodner, D Deng, S Samorodnitsky, W Ling, D Li, N Zhao. ARShift: A nonparametric test for spatial association in clustered point processes. Manuscript in Preparation, 2026+
• Y Chen, N Mudrik, A Roy, N Zhao, A Charles, M Gallagher, A Branch, J Knierim. Neural representations of context-dependent odor-place associations across multiple timescales in the lateral entorhinal cortex Manuscript in Preparation, 2026+
• W Ling, Y Gao, L Li, A Roy, N Zhao, F Ryan, L Lathi, S Mangiola. Beta dispersion confounds heterogeneity and mean composition in microbiomics Submitted, 2026+
• R Liu, B Grodner, S Samorodnitsky, D Deng, A Roy, Y Dun, I Vlaminck, N Zhao, W Ling. Identifying dysbiosis in image-based spatial microbiome via MiSA Manuscript in Preparation, 2026+

R packages

• MLFDR Available in CRAN, implements the method in "Powerful large scale inference in high dimensional mediation analysis"
• DTH Available in Github, implements DTH
• spatbiome Available in Github, implements ARShift