Jun Zhu

Credentials: Chair

Position title: Professor, Statistics

Email: jzhu@stat.wisc.edu

Phone: 608-262-3720

Address:
1220A Medical Sciences Center

Jun Zhu

Education

PhD  Iowa State University, Ames, 2000 (Statistics)
MSE  Johns Hopkins University, Baltimore, 1995 (Mathematical Sciences)
BA  Knox College, Galesburg 1994 (Mathematics and Computer Science)

Research Interests

Spatial statistics, spatio-temporal statistics, Markov random fields, agricultural statistics, environmental statistics, statistical ecology, environmental/population health, disease mapping, medical imaging, spatial demography

The main components of my research activities are statistical methodological development and scientific collaborative research. My statistical methodological research concerns developing statistical methodology for analyzing spatially referenced data (spatial statistics) and spatial data repeatedly sampled over time (spatio-temporal statistics) that arise in the biological, physical, and social sciences. My collaborative research concerns applying modern statistical methods, especially spatial and spatio-temporal statistics, to studies of agricultural, biological, ecological, environmental, health, and social systems conducted by research scientists. To a large extent, my overall research program involves a close connection between the two types of research activities. Problems in my collaborative research that do not have adequate statistical tools motivate my statistical methodological research, whereas the new methods I develop in statistical methodological research are applied in my collaborative projects.

Representative Publications

Berg, S, Zhu, J, Clayton, MK, Shea, ME, and Mladenoff, DJ (2019) A latent discrete Markov field approach for identifying and classifying historical forest communities based on spatial multivariate tree species counts. Annals of Applied Statistics, 13, 2312-2340.

Al-Sulami, D, Jiang, Z, Lu, Z, and Zhu, J (2019) On a semiparametric data-driven nonlinear model with penalized spatio-temporal lag interactions. Journal of Time Series Analysis, 40, 327-342.

Walsh, DP, Ma, T-F, Ip, H-S, and Zhu, J (2019) Artificial intelligence and avian influenza: using machine learning to enhance active surveillance for avian influenza viruses. Transboundary and Emerging Diseases, 66, 2537-2545.

Chen, C-S, Zhu, J, and Chu, T (2018). A generalized measure of uncertainty in geostatistical model selection. Statistica Sinica, 28, 203-228.

Ludwig, G, Chu, T, Zhu, J, Wang, H, and Koehler, K (2017) Static and roving sensor data fusion for spatio-temporal hazard mapping with application to occupational exposure assessment. Annals of Applied Statistics, 11, 139-160.

Feng, X, Zhu, J, Steen-Adams, MM, and Lin, P-S (2017). Composite likelihood approach to the regression analysis of spatial multivariate ordinal data and spatial compositional data with exact zero values. Environmental and Ecological Statistics, 24, 39-68.

Lee, J, Gangnon, R, and Zhu, J (2017) Cluster detection of spatial regression coefficients. Statistics in Medicine, 16, 1118-1133.

Corsi, SR, Borchardt, MA, Carvin, RB, Burch, TR, Spencer, SK, Lutz, MA, McDermott, CM, Busse, KM, Kleinheinz, GT, Feng, X, and Zhu, J (2016) Human and bovine viruses and bacteria at three Great Lakes beaches: Environmental variable associations and health risk. Environmental Science and Technology, 50, 987-995.

Bradshaw, T, Fu, R, Bowen, S, Zhu, J, Forrest, L, and Jeraj, R (2015) Predicting location of recurrence using FDG, FLT, and Cu-ATSM PET in canine sinonasal tumors treated with radiotherapy. Physics in Medicine and Biology, 60, 5211.

Thurman, AL, Fu, R, Guan, Y, and Zhu, J (2015) Regularized estimating equations for model selection of clustered spatial point processes. Statistica Sinica, 25, 173-188.

Chu, T, Wang, H, and Zhu, J (2014) On semiparametric inference of geostatistical models via local Karhunen-Loeve expansion. Journal of the Royal Statistical Society Series B, 76, 817-832.

Tracey, JA, Sheppard, J, Zhu, J, Wei, F, Swaisgood, RR, and Fisher, RN (2014) Movement-based estimation and visualization of space use in 3D for wildlife ecology and conservation. PLoS ONE, 9, e101205.

Curtis, KJ, Reyes, PE, O’Connell, H, and Zhu, J (2013) Assessing the spatial concentration and temporal persistence of poverty: Industrial structure, racial/ethnic concentration, and the complex links to poverty. Spatial Demography, 1, 178-194.

Bradbury, KR, Borchardt, MA, Gotkowitz, M, Spencer, SK, Zhu, J, and Hunt, RJ (2013) Source and transport of human enteric viruses in deep municipal water supply wells. Environmental Science and Technology, 47, 4096-4103.

Sambaraju, KR, Carroll, AL, Zhu, J, Moore, D, Stahl, K, and Aukema, BH (2012) Climate change could alter the distribution of mountain pine beetle outbreaks in western Canada. Ecography, 35, 211-223.

Chu, T, Zhu, J, and Wang, H (2011). Penalized maximum likelihood estimation and variable selection in geostatistics. Annals of Statistics, 39, 2607-2625.

Tracey, JA, Zhu, J, and Crooks, KR (2011) Modeling and inference of animal movement using artificial neural network. Environmental and Ecological Statistics, 18, 393-410.

Zhu, J, Huang, H-C, and Reyes, PE (2010) On selection of spatial linear models for lattice data. Journal of the Royal Statistical Society Series B, 72, 389-402.

Zheng, Y, Zhu, J, and Roy, A (2010) Nonparametric Bayesian inference for the spectral density function of a random field. Biometrika, 97, 238-245.

Chi, G and Zhu, J (2008) Spatial regression models for demographic analysis. Population Research and Policy Review, 27, 17-42.

Zhu, J, Rasmussen, JG, Møller, J, Aukema, BH, and Raffa, KF (2008). Spatial-temporal modeling of forest gaps generated by colonization from below- and above-ground bark beetle species. Journal of the American Statistical Association, 103, 162-177.

Zhu, J and Lahiri, SN (2007) Bootstrapping the empirical distribution function of a spatial process. Statistical Inference for Stochastic Processes, 10, 107-145.

Lahiri, SN and Zhu, J (2006) Resampling methods for spatial regression models under a class of stochastic designs. Annals of Statistics, 34, 1774-1813.

Ives, AR and Zhu, J (2006) Statistics for correlated data: phylogenies, space, and time. Ecological Applications, 16, 20-32.

Zhu, J, Huang, H-C, and Wu, J (2005). Modeling spatial-temporal binary data using Markov random fields. Journal of Agricultural, Biological, and Environmental Statistics, 10, 212–225.

Zhu, J., Eickhoff, JC, and Yan, P (2005). Generalized linear latent variable models for repeated measures of spatially correlated multivariate data. Biometrics, 61, 674-683.

Zhu, J, Morgan, CLS, Norman, JM, Yue, W, and Lowery, B (2004) Combined mapping of soil properties using a multi-scale tree-structured spatial model. Geoderma, 118, 321–334.

Book

Chi, G. and Zhu, J. (2019). Spatial Regression Models for the Social Sciences. SAGE, Thousand Oaks, CA.

Courses Taught

Statistics 571: Statistical Methods for Bioscience I
Statistics 572: Statistical Methods for Bioscience II
Statistics 575: Statistical Methods for Spatial Data
Statistics 701: Applied Time Series Analysis, Forecasting, and Control I
Statistics 849: Theory and Application of Regression and Analysis of Variance I
Statistics 992: Statistics for Spatial Data: Theory and Methods
Statistics 998: Statistical Consulting
Entomology 901: The Tao of Statistics