Arkaprava Roy

Arkaprava Roy,

Assistant Professor

Department: PHHP-COM BIOSTATISTICS
Business Phone: (352) 294-5924
Business Email: arkaprava.roy@ufl.edu

About Arkaprava Roy

I am an assistant professor in Department of Biostatistics, University of Florida and an affiliated member in the UF Artificial Intelligence Academic Initiative. Before that, I was an Postdoctoral associate at Duke University. My primary focus is on data science and in developing innovative statistical modeling frameworks and corresponding inference methodology motivated by complex applications with strong theoretical support. I received my PhD from NC State.

I am interested to develop cool statistical methods with substantial theoretical support in non-parametric/High dimensional modeling, Machine learning, manifold learning, graphical modeling, complex structure learning motivated by a variety of applications for example brain imaging, nutritional epidemiology, image precessing, time-series analysis etc. Since most of my works are in Bayes paradigm, it is also often of great interest to develop flexible prior distributions to study complex spaces with theoretical support and develop computational algorithms that are scalable and highly efficient.

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Teaching Profile

Courses Taught
2020-2021
STA6177 Applied Survival Analysis
2020-2021
PHC6917 Supervised Research Project
2021,2024-2025
PHC6937 Special Topics in Public Health
2022
PHC6084 Bayesian Biostatistical Methods
2022-2025
PHC7979 Advanced Research
2022-2023
PHC6068 Biostatistical Computing

Research Profile

Open Researcher and Contributor ID (ORCID)

0000-0001-6976-9967

Publications

2024
Linking stability with molecular geometries of perovskites and lanthanide richness using machine learning methods
Computational Materials Science. 231 [DOI] 10.1016/j.commatsci.2023.112581.
2024
Prefrontal cortical activity during uneven terrain walking in younger and older adults.
Frontiers in aging neuroscience. 16 [DOI] 10.3389/fnagi.2024.1389488. [PMID] 38765771.
2024
Resting state brain network segregation is associated with walking speed and working memory in older adults.
bioRxiv : the preprint server for biology. [DOI] 10.1101/2024.05.07.592861. [PMID] 38766046.
2023
Bayesian semiparametric multivariate density deconvolution via stochastic rotation of replicates
Computational Statistics & Data Analysis. 182 [DOI] 10.1016/j.csda.2023.107706.
2023
Bayesian time‐varying autoregressive models of COVID‐19 epidemics
Biometrical Journal. 65(1) [DOI] 10.1002/bimj.202200054. [PMID] 35876399.
2023
Clustering single-cell multimodal omics data with jrSiCKLSNMF.
Frontiers in genetics. 14 [DOI] 10.3389/fgene.2023.1179439. [PMID] 37359367.
2023
Nonparametric group variable selection with multivariate response for connectome-based modelling of cognitive scores
Journal of the Royal Statistical Society Series C: Applied Statistics. 72(4):872-888 [DOI] 10.1093/jrsssc/qlad033.
2023
Spectral Clustering, Bayesian Spanning Forest, and Forest Process
Journal of the American Statistical Association. 1-14 [DOI] 10.1080/01621459.2023.2250098.
2023
Uneven terrain versus dual-task walking: differential challenges imposed on walking behavior in older adults are predicted by cognitive and sensorimotor function.
bioRxiv : the preprint server for biology. [DOI] 10.1101/2023.03.14.531779. [PMID] 36993462.
2023
YAP at the Crossroads of Biomechanics and Drug Resistance in Human Cancer.
International journal of molecular sciences. 24(15) [DOI] 10.3390/ijms241512491. [PMID] 37569866.
2022
Kinematic analysis of speed transitions within walking in younger and older adults
Journal of Biomechanics. 138 [DOI] 10.1016/j.jbiomech.2022.111130. [PMID] 35569430.
2022
Optimal Bayesian smoothing of functional observations over a large graph
Journal of Multivariate Analysis. 189 [DOI] 10.1016/j.jmva.2021.104876.
2022
Uneven terrain treadmill walking in younger and older adults
PLOS ONE. 17(12) [DOI] 10.1371/journal.pone.0278646. [PMID] 36534645.
2021
Bayesian Modelling of Time-Varying Conditional Heteroscedasticity
Bayesian Analysis. 16(4):1157-1185 [DOI] 10.1214/21-ba1267.
2021
Bayesian time-aligned factor analysis of paired multivariate time series
The Journal of Machine Learning Research. 22(1):11347-11373 [PMID] 35754922.
2021
Multivariate Gaussian RBF‐net for smooth function estimation and variable selection
Statistical Analysis and Data Mining: The ASA Data Science Journal. 14(5):484-500 [DOI] 10.1002/sam.11540.
2021
Perturbed factor analysis: Accounting for group differences in exposure profiles
The Annals of Applied Statistics. 15(3):1386-1404 [DOI] 10.1214/20-aoas1435. [PMID] 36324423.
2021
Spatial Shrinkage Via the Product Independent Gaussian Process Prior
Journal of Computational and Graphical Statistics. 30(4):1068-1080 [DOI] 10.1080/10618600.2021.1923512.
2021
Time-varying auto-regressive models for count time-series
Electronic Journal of Statistics. 15(1) [DOI] 10.1214/21-ejs1851.
2020
High Dimensional Single-Index Bayesian Modeling of Brain Atrophy
Bayesian Analysis. 15(4) [DOI] 10.1214/19-ba1186.
2020
Nonparametric graphical model for counts.
Journal of machine learning research : JMLR. 21 [PMID] 33488299.
2019
Bayesian modeling of the structural connectome for studying Alzheimer’s disease
The Annals of Applied Statistics. 13(3) [DOI] 10.1214/19-aoas1257.

Grants

Apr 2024 ACTIVE
"Intermittent Visual Perturbations to Enhance Balance Training"
Role: Co-Investigator
Funding: NATL INST OF HLTH NINDS
Dec 2023 ACTIVE
Antihypertensive Mechanisms of Minocycline in Resistant Hypertension: Role of the gut microbiota-brain-immune axis
Role: Co-Investigator
Funding: NATL INST OF HLTH NHLBI
Nov 2023 ACTIVE
IPA- Roy FY24
Role: Principal Investigator
Funding: US DEPT OF VET AFF GAINESVILLE MED CTR
Sep 2023 ACTIVE
Optical Stimulation of Visual Areas to Elucidate Cognitive Decision-making Behavior in a Vertebrate Brain
Role: Project Manager
Funding: US AIR FORCE AFOSR
Jan 2023 ACTIVE
Effect of Head-Down Tilt +/- CO2 on Human Glymphatic Function
Role: Co-Investigator
Funding: NASA JOHNSON SPACE FLIGHT CTR
Sep 2022 ACTIVE
Collaborative Research: Novel modeling and Bayesian analysis of high-dimensional time series
Role: Principal Investigator
Funding: NATL SCIENCE FOU
May 2022 ACTIVE
Linking kynurenine accumulation and the AHR pathway to exacerbated aging
Role: Co-Investigator
Funding: NATL INST OF HLTH NIA
Sep 2018 ACTIVE
Multimodal imaging of brain activity to investigate walking and mobility decline in older adults
Role: Project Manager
Funding: NATL INST OF HLTH NIA

Education

PhD
2018 · North Carolina State University
M.Stat
2014 · Indian Statistical Institute, Kolkata, India
B.Stat
2012 · Indian Statistical Institute, Kolkata, India

Contact Details

Phones:
Business:
(352) 294-5924
Emails:
Addresses:
Business Mailing:
PO Box 117450
GAINESVILLE FL 32611