Dr Cristian Felipe Jiménez Varón
Research Associate in Statistics
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Profile
Biography
I joined the Department of Mathematics at the University of York in September 2024 as a Research Associate in Statistics, working with Professor Marina Knight, Principal Investigator of the York node of the program Network Stochastic Processes and Time Series (NeST). My research focuses on the modelling of time series data observed over the nodes and edges of networks.
Before joining York, I completed a PhD in Statistics at King Abdullah University of Science and Technology (KAUST) in June 2024, under the supervision of Professor Ying Sun in the Environmental Statistics research group. Prior to that, I obtained a master’s degree in applied mathematics from Universidad Nacional de Colombia, Sede Manizales (UNAL). From 2016 to 2020, I also held lecturer positions in the Department of Mathematics and Statistics at UNAL and in the Department of Physics and Mathematics at Universidad Autónoma de Manizales.
Research
Overview
Cristian's research primarily focuses on time series and functional data analysis. He is particularly interested in developing statistical methodologies for modelling complex data structures, with applications in economic, financial, and environmental domains.
Projects
Network Stochastic Processes and Time Series
Research group(s)
- Statistics and Probability Research Group
- Supervisor: Marina Knight
Publications
Selected publications
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- Jimenez-Varon, C.F., Sun, Y., Shang, H. (2025). Forecasting density-valued functional panel data. Australian & New Zealand Journal of Statistics.
- Jimenez-Varon, C.F., Lee, H., Genton, MG., Sun, Y. (2025). Visualization and Assessment of Copula Structures. Journal of Computational and Graphical Statistics.
- Jimenez-Varon, C.F., Sun, Y., Li, T-H. (2024). A semi-parametric estimation method for quantile coherence with an application to bivariate financial time series clustering. Econometrics and Statistics.
- Jimenez-Varon, C.F., Harrou, F., Sun, Y. (2024). Pointwise Data Depth for Univariate and Multivariate Functional Outlier Detection. Environmetrics.
- Jimenez-Varon, C.F., Sun, Y., Shang, H. (2024). Forecasting high-dimensional functional time series: Application to sub-national age-specific mortality. Journal of the Computational and Graphical Statistics.
My full publication list is available on Google Scholar.
