From multivariate to functional data analysis: Fundamentals, recent developments, and emerging areas

Y Li, Y Qiu, Y Xu - Journal of Multivariate Analysis, 2022 - Elsevier
Functional data analysis (FDA), which is a branch of statistics on modeling infinite
dimensional random vectors resided in functional spaces, has become a major research …

Shape-based functional data analysis

Y Wu, C Huang, A Srivastava - Test, 2024 - Springer
Functional data analysis (FDA) is a fast-growing area of research and development in
statistics. While most FDA literature imposes the classical L 2 Hilbert structure on function …

Prediction of corn price fluctuation based on multiple linear regression analysis model under big data

Y Ge, H Wu - Neural Computing and Applications, 2020 - Springer
This paper mainly analyzes the changing trend of corn price and the factors that affect the
price of corn. Using the data and regression analysis, the univariate nonlinear and …

Factor models for high‐dimensional functional time series I: Representation results

M Hallin, G Nisol, S Tavakoli - Journal of Time Series Analysis, 2023 - Wiley Online Library
In this article, which consists of two parts (Part I: representation results; Part II: estimation and
forecasting methods), we set up the theoretical foundations for a high‐dimensional …

Directed cyclic graph for causal discovery from multivariate functional data

S Roy, RKW Wong, Y Ni - Advances in Neural Information …, 2024 - proceedings.neurips.cc
Discovering causal relationship using multivariate functional data has received a significant
amount of attention very recently. In this article, we introduce a functional linear structural …

[HTML][HTML] Toward automated instructor pilots in legacy air force systems: Physiology-based flight difficulty classification via machine learning

WN Caballero, N Gaw, PR Jenkins… - Expert Systems with …, 2023 - Elsevier
Abstract The United States Air Force (USAF) is struggling to train enough pilots to meet
operational requirements. Technology has advanced rapidly over the last 70 years but …

Functional data analysis-based yield modeling in year-round crop cultivation

H Matsui, K Mochida - Horticulture Research, 2024 - academic.oup.com
Crop yield prediction is essential for effective agricultural management. We introduce a
methodology for modeling the relationship between environmental parameters and crop …

Fast multilevel functional principal component analysis

E Cui, R Li, CM Crainiceanu, L Xiao - Journal of Computational …, 2023 - Taylor & Francis
We introduce fast multilevel functional principal component analysis (fast MFPCA), which
scales up to high dimensional functional data measured at multiple visits. The new approach …

Fast covariance estimation for multivariate sparse functional data

C Li, L Xiao, S Luo - Stat, 2020 - Wiley Online Library
Covariance estimation is essential yet underdeveloped for analysing multivariate functional
data. We propose a fast covariance estimation method for multivariate sparse functional data …

Low-rank covariance function estimation for multidimensional functional data

J Wang, RKW Wong, X Zhang - Journal of the American Statistical …, 2022 - Taylor & Francis
Multidimensional function data arise from many fields nowadays. The covariance function
plays an important role in the analysis of such increasingly common data. In this article, we …