3 papers
stat.ME2025
On Ignorability of Preferential Sampling in Geostatistics
Changqing Lu, Ganggang Xu, Junho Yang +1
Preferential sampling has attracted considerable attention in geostatistics since the pioneering work of Diggle et al. (2010). A variety of likelihood-based approaches have been de…
stat.ME2025
Generalized Reduced-Rank Regression with Homogeneity Pursuit
Ruipeng Dong, Ganggang Xu, Yongtao Guan
Homogeneity, low rank, and sparsity are three widely adopted assumptions in multi-response regression models to address the curse of dimensionality and improve estimation accuracy.…
stat.ME2024
XGBoostPP: Tree-based Estimation of Point Process Intensity Functions
C. Lu, Y. Guan, M. N. M. van Lieshout +1
We propose a novel tree-based ensemble method, named XGBoostPP, to nonparametrically estimate the intensity of a point process as a function of covariates. It extends the use of gr…