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Showing 1-20 of 146 results
  1. An Empirical Comparison of Global and Local Functional Depths

    A functional data depth provides a center-outward ordering criterion that allows the definition of measures such as median, trimmed means, central...
    Carlo Sguera, Rosa E. Lillo in Nonparametric Statistics
    Conference paper 2020
  2. Tree-based boosting with functional data

    In this article we propose a boosting algorithm for regression with functional explanatory variables and scalar responses. The algorithm uses...

    **aomeng Ju, Matías Salibián-Barrera in Computational Statistics
    Article 22 May 2023
  3. Shape-based functional data analysis

    Functional data analysis (FDA) is a fast-growing area of research and development in statistics. While most FDA literature imposes the classical ...

    Yuexuan Wu, Chao Huang, Anuj Srivastava in TEST
    Article Open access 22 August 2023
  4. Model-based clustering of functional data via mixtures of t distributions

    We propose a procedure, called T-funHDDC, for clustering multivariate functional data with outliers which extends the functional high dimensional...

    Cristina Anton, Iain Smith in Advances in Data Analysis and Classification
    Article 12 May 2023
  5. Localization processes for functional data analysis

    We propose an alternative to k -nearest neighbors for functional data whereby the approximating neighboring curves are piecewise functions built from...

    Antonio Elías, Raúl Jiménez, J. E. Yukich in Advances in Data Analysis and Classification
    Article 19 August 2022
  6. A notion of depth for sparse functional data

    Data depth is a well-known and useful nonparametric tool for analyzing functional data. It provides a novel way of ranking a sample of curves from...

    Carlo Sguera, Sara López-Pintado in TEST
    Article 18 September 2020
  7. Detecting and classifying outliers in big functional data

    We propose two new outlier detection methods, for identifying and classifying different types of outliers in (big) functional data sets. The proposed...

    Oluwasegun Taiwo Ojo, Antonio Fernández Anta, ... Carlo Sguera in Advances in Data Analysis and Classification
    Article 30 August 2021
  8. Robust archetypoids for anomaly detection in big functional data

    Archetypoid analysis (ADA) has proven to be a successful unsupervised statistical technique to identify extreme observations in the periphery of the...

    Guillermo Vinue, Irene Epifanio in Advances in Data Analysis and Classification
    Article 03 August 2020
  9. A new way for ranking functional data with applications in diagnostic test

    This is a two faces paper. Firstly, it investigates diagnostic tests in situations when the observed variables are functional, that is, diagnostic...

    Graciela Estévez-Pérez, Philippe Vieu in Computational Statistics
    Article 24 July 2020
  10. Distribution-free Pointwise Adjusted %-values for Functional Hypotheses

    Graphical tests assess whether a function of interest departs from an envelope of functions generated under a simulated null distribution. This...
    Conference paper 2020
  11. Theory of angular depth for classification of directional data

    Depth functions offer an array of tools that enable the introduction of quantile- and ranking-like approaches to multivariate and non-Euclidean...

    Stanislav Nagy, Houyem Demni, ... Giovanni C. Porzio in Advances in Data Analysis and Classification
    Article 23 September 2023
  12. Level sets of depth measures in abstract spaces

    The lens depth of a point has been recently extended to general metric spaces, which is not the case for most depths. It is defined as the...

    A. Cholaquidis, R. Fraiman, L. Moreno in TEST
    Article 31 March 2023
  13. A New Method for Ordering Functional Data and its Application to Diagnostic Test

    This contribution proposes a new ordering method for functional data which could be a starting point for develo** new advances in problems for...
    Graciela Estévez-Pérez, Philippe Vieu in Functional and High-Dimensional Statistics and Related Fields
    Conference paper 2020
  14. An introduction to the (postponed) 5th edition of the International Workshop on Functional and Operatorial Statistics

    This volume is composed by a set of short papers corresponding to some of the contributions that were sent to be presented at the fifth edition of...
    Germán Aneiros, Ivana Horová, ... Philippe Vieu in Functional and High-Dimensional Statistics and Related Fields
    Conference paper 2020
  15. An integrated local depth measure

    We introduce the Integrated Dual Local Depth, which is a local depth measure for data in a Banach space based on the use of one-dimensional...

    Lucas Fernandez-Piana, Marcela Svarc in AStA Advances in Statistical Analysis
    Article 03 January 2022
  16. Depth in Infinite-dimensional Spaces

    Depth is a statistical tool that aims to introduce sensible data-dependent ordering of points in multivariate / function spaces. In theory, this...
    Conference paper 2020
  17. Robustness of the deepest projection regression functional

    Depth notions in regression have been systematically proposed and examined in Zuo ( ar**v:1805.02046 , 2018 ). One of the prominent advantages of the...

    Yijun Zuo in Statistical Papers
    Article 07 August 2019
  18. The Halfspace Depth Characterization Problem

    The halfspace depth characterization conjecture states that for any two distinct (probability) measures P and Q in the d-dimensional Euclidean space,...
    Stanislav Nagy in Nonparametric Statistics
    Conference paper 2020
  19. The zonoid region parameter depth

    A new concept of depth for central regions is introduced. The proposed depth notion assesses how well an interval fits a given univariate...

    Ignacio Cascos, Giuseppe Pandolfo, Beatriz Sinova in Statistical Papers
    Article Open access 13 December 2022
  20. Halfspace depth does not characterize probability distributions

    We give examples of different multivariate probability distributions whose halfspace depths coincide at all points of the sample space.

    Stanislav Nagy in Statistical Papers
    Article 02 August 2019
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