Random forests for spatially dependent data

A Saha, S Basu, A Datta - Journal of the American Statistical …, 2023 - Taylor & Francis
Spatial linear mixed-models, consisting of a linear covariate effect and a Gaussian process
(GP) distributed spatial random effect, are widely used for analyses of geospatial data. We …

nnSVG for the scalable identification of spatially variable genes using nearest-neighbor Gaussian processes

LM Weber, A Saha, A Datta, KD Hansen… - Nature …, 2023 - nature.com
Feature selection to identify spatially variable genes or other biologically informative genes
is a key step during analyses of spatially-resolved transcriptomics data. Here, we propose …

Statistical field calibration of a low-cost PM2. 5 monitoring network in Baltimore

A Datta, A Saha, ML Zamora, C Buehler, L Hao… - Atmospheric …, 2020 - Elsevier
Low-cost air pollution monitors are increasingly being deployed to enrich knowledge about
ambient air-pollution at high spatial and temporal resolutions. However, unlike regulatory …

Nearest‐neighbor sparse Cholesky matrices in spatial statistics

A Datta - Wiley Interdisciplinary Reviews: Computational …, 2022 - Wiley Online Library
Gaussian process (GP) is a staple in the toolkit of a spatial statistician. Well‐documented
computing roadblocks in the analysis of large geospatial datasets using GPs have now …

Evaluating spatially variable gene detection methods for spatial transcriptomics data

C Chen, HJ Kim, P Yang - Genome Biology, 2024 - Springer
Background The identification of genes that vary across spatial domains in tissues and cells
is an essential step for spatial transcriptomics data analysis. Given the critical role it serves …

A comparison of residential apartment rent price predictions using a large data set: Kriging versus deep neural network

H Seya, D Shiroi - Geographical Analysis, 2022 - Wiley Online Library
Despite several attempts to compare and examine the predictive accuracy of real estate
sales and rent prices between the regression‐based and neural‐network (NN)‐based …

spNNGP R package for nearest neighbor Gaussian process models

AO Finley, A Datta, S Banerjee - arXiv preprint arXiv:2001.09111, 2020 - arxiv.org
This paper describes and illustrates functionality of the spNNGP R package. The package
provides a suite of spatial regression models for Gaussian and non-Gaussian point …

Neural networks for geospatial data

W Zhan, A Datta - Journal of the American Statistical Association, 2024 - Taylor & Francis
Analysis of geospatial data has traditionally been model-based, with a mean model,
customarily specified as a linear regression on the covariates, and a Gaussian process …

Graphical Gaussian process models for highly multivariate spatial data

D Dey, A Datta, S Banerjee - Biometrika, 2022 - academic.oup.com
For multivariate spatial Gaussian process models, customary specifications of cross-
covariance functions do not exploit relational inter-variable graphs to ensure process-level …

A causal inference framework for spatial confounding

B Gilbert, A Datta, JA Casey, EL Ogburn - arXiv preprint arXiv:2112.14946, 2021 - arxiv.org
Recently, addressing spatial confounding has become a major topic in spatial statistics.
However, the literature has provided conflicting definitions, and many proposed definitions …