DEPARTMENT OF STATISTICS AND DATA SCIENCE

Research Interests

Time-series analysis; Dependent data; Spatio-temporal statistical modeling and methodologies; Nonlinear time-series modeling with emphasis to threshold models; Statistical inference for infectious diseases and epidemiology; Statistical ecology; Dynamics of biological systems; Environmental research; Statistical applications to biomedical research.

Research Statement

My research interests focus on introducing and developing new statistical linear and nonlinear (threshold) models. My work is both, theoretical and applied in nature. Through cross-disciplinary collaborations, these advanced and often new statistical methodologies are tailored to each specific application with the aim of explaining the dynamics of complex biological systems, particularly in the areas of infectious diseases and epidemiology, statistical ecology, and biomedical research.

Selected Publications

Clain AE, Samia N, Davidson K, Martin-Harris B. Characterizing Physiologic Swallowing Impairment Profiles: A Large-Scale Exploratory Study of Head and Neck Cancer, Stroke, Chronic Obstructive Pulmonary Disease, Dementia, and Parkinson's Disease. J Speech Lang Hear Res. 2024 Dec 9;67(12):4689-4713. PubMed Central PMCID: PMC11667003.

Samia N, Raife T. Rising total leukocyte counts correspond with rising platelet counts in thrombotic thrombocytopenic purpura. Blood Vessels, Thrombosis & Hemostasis. 2024 December 01; 1(4):100024. Available from: https://www.sciencedirect.com/science/article/pii/S295032722400024X issn: 2950-3272

Samia NI, Stramer O, Saitoh T, Stenseth NC. Climate-driven context-dependent structure of population cycles. R Soc Open Sci. 2024 Aug;11(8):240047. PubMed Central PMCID: PMC11349440.

Butler, E. R., Samia, N., White, S., Gratton, C. and Nusslock, R. (2024). Neuroimmune mechanisms connecting violence with internalizing symptoms: A high-dimensional multimodal mediation analysis. Human Brain Mapping, 45(2), e26615. https://doi.org/10.1002/hbm.26615

Samia, N.I., Robicsek, A., Heesterbeek, H. and Peterson, L.R. (2022). Methicillin-Resistant Staphylococcus Aureus (MRSA) nosocomial infection has a distinct epidemiological position and acts as a marker for overall hospital infection control trends. Scientific Reports, 12, doi:10.1038/s41598-022-21300-6.

Stefely, J.A., Gailey, M.P., Knudson, C.M., Dumont, L.J., Raife, T.J. and Samia, N.I. (2020). Retrospective cohort studies of repeat donors reveal donor dependent variability in the recovery of transfused platelets. Transfusion, 60 (8): 1837-1845.

Chin, V., Samia, N.I., Marchant, R., Rosen, O., Ioannidis, J.P.A., Tanner, M.A. and Cripps, S. (2020). A case study in model failure? COVID-19 daily deaths and ICU bed utilisation predictions in New York state. European Journal of Epidemiology, 35 (8), 733-742.

Peterson, L.R., Samia, N.I., Skinner, A.M., Chopra, A. and Smith, B. (2017). Antimicrobial Stewardship Lessons From Mupirocin Use and Resistance in Methicillin-Resistant Staphylococcus Aureus. Open Forum Infectious Diseases, 4 (2): ofx093. doi:10.1093/ofid/ofx093.