My research interests span the topics of statistical modeling and analysis for geographically referenced data, Bayesian statistics (theory and methods), statistical computing and related software development.
Tang, W.*, Zhang, L.*, & Banerjee, S. On identifiability and consistency of the nugget in Gaussian spatial process models. Journal of the Royal Statistical Society Series B, accepted arXiv preprint
Zhang, L. & Banerjee, S., (2021). Spatial factor modeling: A Bayesian matrix‐normal approach for misaligned data. Biometrics. link
Zhang, L., Banerjee, S. & Finley, A. O. (2021). High‐dimensional multivariate geostatistics: A Bayesian matrix‐normal approach. Environmetrics. link
Watson, G.L., Xiong, D., Zhang, L., Zoller, J.A., Shamshoian, J., Sundin, P., Bufford, T., Rimoin, A.W., Suchard, M.A. and Ramirez, C.M., (2021+). Pandemic velocity: forecasting COVID-19 in the US with a machine learning & Bayesian time series compartmental model. PLOS Computational Biology, accepted. prepint
Xiong, D.*, Zhang, L.*, Watson, G.L., Sundin, P., Bufford, T., Zoller, J.A., Shamshoian, J., Suchard, M.A. and Ramirez, C.M., (2020). Pseudo-likelihood based logistic regression for estimating COVID-19 infection and case fatality rates by gender, race, and age in California. Epidemics link
Zhang, L., Datta, A. & Banerjee, S. (2019). Practical Bayesian modeling and inference for massive spatial data sets on modest computing environments. Statistical Analysis and Data Mining: The ASA Data Science Journal link
Zhang, L.*, Tang, W.* & Banerjee, S. Fixed-Domain Asymptotics Under Vecchia’s Approximation of Spatial Process Likelihoods. Submitted arXiv preprint
Zhang, L., Carpenter, B., Gelman, A. & Vehtari, A. Pathfinder: Parallel quasi-Newton variational inference Under revision at Journal of Machine Learning Research arXiv preprint
(* co-first author)
Stan case study of Nearest neighbor Gaussian process (NNGP) based models link
A Note on using Kullback-Leibler Divergence to compare the performance of some Nearest Neighbor Gaussian Process (NNGP) based models link (HTML)
JALAJni JaLAJni is a JAVA package providing a java interface for lapack and blas library
JAMAJniLite JAMAJniLite is a JAVA package providing a java interface for lapack and blas libraries and using the classes defined by JAMA Package.
phase1PRMD Implements Bayesian phase I repeated measurement design that accounts for multidimensional toxicity endpoints and longitudinal efficacy measure from multiple treatment cycles and allows individualized dose modification.