World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
53
Citations
23378
World Ranking
872
National Ranking
419

Overview

Jan de Leeuw is affiliated with the University of California, Los Angeles in the United States. Their research predominantly engages with the domain of Agricultural and Biological Sciences, with focused contributions in subfields such as Food Science, Artificial Intelligence, Analytical Chemistry, Plant Science, and Earth-Surface Processes.

Their work spans several main topics, including Sensory Analysis and Statistical Methods, Spectroscopy and Chemometric Analyses, Leaf Properties and Growth Measurement, Data Analysis with R, Geological formations and processes, Geology and Paleoclimatology Research, as well as Hydrocarbon exploration and reservoir analysis.

Jan de Leeuw has authored and contributed to multiple scholarly articles. Recent papers include:

  • "More on Multidimensional Scaling and Unfolding in R: smacof Version 2" (2022), published in the Journal of Statistical Software
  • "Improved Approximation and Visualization of the Correlation Matrix" (2023), published in The American Statistician
  • "Reconstructing sedimentary processes in a Permian channel-lobe transition zone: an outcrop study in the Karoo Basin, South Africa" (2022), published in Geological Magazine
  • "Improved approximation and visualization of the correlation matrix" (2022), published on arXiv (Cornell University)
  • "Parcel loss prediction in last-mile delivery: deep and non-deep approaches with insights from Explainable AI" (2023), published on arXiv (Cornell University)

The scholar frequently publishes on platforms such as arXiv (Cornell University), with four contributions, as well as in journals like the Journal of Statistical Software, The American Statistician, Geological Magazine, and Annals of the Rheumatic Diseases.

Collaborative efforts feature prominently in their academic profile. Frequent coauthors include Jan Graffelman, with whom they have collaborated on multiple publications. Other notable coauthors are Patrick Mair, Patrick J. F. Groenen, Florian Pohl, and JT Eggenhuisen.

Best Publications

  • Introducing multilevel modeling

    Ita Kreft;Jan de Leeuw

  • Nonmetric individual differences multidimensional scaling: An alternating least squares method with optimal scaling features.

    Yoshio Takane;Forrest W. Young;Jan de Leeuw

  • Journal of Statistical Software

    Unknown

  • The Effect of Different Forms of Centering in Hierarchical Linear Models

    Ita G.G. Kreft;Jan de Leeuw;Leona S. Aiken

  • ON THE RELATIONSHIP BETWEEN ITEM RESPONSE THEORY AND FACTOR ANALYSIS OF DISCRETIZED VARIABLES

    Yoshio Takane;Jan de Leeuw

  • Principal component analysis of three-mode data by means of alternating least squares algorithms

    Pieter M. Kroonenberg;Jan de Leeuw

  • Multidimensional Scaling Using Majorization: SMACOF in R

    Jan de Leeuw;Patrick Mair

  • Applications of Convex Analysis to Multidimensional Scaling

    Jan De Leeuw

  • Random Coefficient Models for Multilevel Analysis

    Jan De Leeuw;Ita Kreft

  • Handbook of multilevel analysis

    Jan de Leeuw;Erik Meijer;Harvey Goldstein

  • The Gifi system of descriptive multivariate analysis

    George Michailidis;Jan de Leeuw

  • Additive structure in qualitative data: An alternating least squares method with optimal scaling features

    Jan de Leeuw;Forrest W. Young;Yoshio Takane

  • Isotone Optimization in R: Pool-Adjacent-Violators Algorithm (PAVA) and Active Set Methods

    Jan de Leeuw;Kurt Hornik;Patrick Mair

  • REGRESSION WITH QUALITATIVE AND QUANTITATIVE VARIABLES: AN ALTERNATING LEAST SQUARES METHOD WITH OPTIMAL SCALING FEATURES

    Forrest W. Young;Jan de Leeuw;Yoshio Takane

  • Convergence of the majorization method for multidimensional scaling

    Jan de Leeuw

  • The principal components of mixed measurement level multivariate data: An alternating least squares method with optimal scaling features

    Forrest W. Young;Yoshio Takane;Jan de Leeuw

  • Block-relaxation Algorithms in Statistics

    Jan de Leeuw

  • 13 Theory of multidimensional scaling

    Jan de Leeuw;Willem J. Heiser

  • Canonical analysis of categorical data

    Jan de Leeuw

  • Nonlinear principal Component Analysis and Related Techniques

    Jan de Leeuw

  • Nonlinear multivariate analysis

    Jan De Leeuw

  • Abstract Measurement Theory.

    Jan de Leeuw;Louis Narens

Frequent Co-Authors

Yoshio Takane
Yoshio Takane University of Victoria
Peter G. M. van der Heijden
Peter G. M. van der Heijden University of Southampton
Richard A. Berk
Richard A. Berk University of Pennsylvania
Henk A. L. Kiers
Henk A. L. Kiers University of Groningen
George Michailidis
George Michailidis University of Florida
Jos M. F. ten Berge
Jos M. F. ten Berge University of Groningen
Kurt Hornik
Kurt Hornik Vienna University of Economics and Business
Thomas P. Novak
Thomas P. Novak George Washington University
Kenneth Lange
Kenneth Lange University of California, Los Angeles
Nicholas G. Martin
Nicholas G. Martin QIMR Berghofer Medical Research Institute

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