• Checking unimodality using isotonic regression: an application to breast cancer mortality rates 

      Rueda, C.; Ugarte Martínez, María Dolores Upna Orcid; Militino, Ana F. Upna Orcid (Springer, 2016)   Artículo / Artikulua  OpenAccess
      In some diseases it is well-known that a unimodal mortality pattern exists. A clear example in developed countries is breast cancer, where mortality increased sharply until the nineties and then decreased. This clear ...
    • Filling missing data and smoothing altered data in satellite imagery with a spatial functional procedure 

      Militino, Ana F. Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Montesino San Martín, Manuel Upna Orcid (Springer, 2019)   Artículo / Artikulua  OpenAccess
      Outliers and missing data are commonly found in satellite imagery. These are usually caused by atmospheric or electronic failures, hampering the correct monitoring of remote-sensing data. To avoid distorted data, we propose ...
    • Flexible Bayesian P-splines for smoothing age-specific spatio-temporal mortality patterns 

      Goicoa Mangado, Tomás; Adin Urtasun, Aritz Upna Orcid; Etxeberria Andueza, Jaione Upna Orcid; Militino, Ana F. Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid (SAGE, 2019)   Artículo / Artikulua  OpenAccess
      In this paper age-space-time models based on one and two-dimensional P-splines with B-spline bases are proposed for smoothing mortality rates, where both xed relative scale and scale invariant two-dimensional penalties ...
    • Improving the quality of satellite imagery based on ground-truth data from rain gauge stations 

      Militino, Ana F. Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Pérez Goya, Unai Upna Orcid (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      Multitemporal imagery is by and large geometrically and radiometrically accurate, but the residual noise arising from removal clouds and other atmospheric and electronic effects can produce outliers that must be mitigated ...
    • Locally adaptive change-point detection (LACPD) with applications to environmental changes 

      Moradi, Mohammad Mehdi Upna Orcid; Montesino San Martín, Manuel Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Militino, Ana F. Upna Orcid (Springer, 2021)   Artículo / Artikulua  OpenAccess
      We propose an adaptive-sliding-window approach (LACPD) for the problem of change-point detection in a set of time-ordered observations. The proposed method is combined with sub-sampling techniques to compensate for the ...
    • Logistic regression versus XGBoost for detecting burned areas using satellite images 

      Militino, Ana F. Upna Orcid; Goyena Baroja, Harkaitz; Pérez-Goya, Unai Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid (Springer, 2024)   Artículo / Artikulua  OpenAccess
      Classical statistical methods prove advantageous for small datasets, whereas machine learning algorithms can excel with larger datasets. Our paper challenges this conventional wisdom by addressing a highly significant ...
    • On the performances of trend and change-point detection methods for remote sensing data 

      Militino, Ana F. Upna Orcid; Moradi, Mohammad Mehdi Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      Detecting change-points and trends are common tasks in the analysis of remote sensing data. Over the years, many different methods have been proposed for those purposes, including (modified) Mann-Kendall and Cox-Stuart ...
    • Stochastic spatio-temporal models for analysing NDVI distribution of GIMMS NDVI3g images 

      Militino, Ana F. Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Pérez Goya, Unai Upna Orcid (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      The normalized difference vegetation index (NDVI) is an important indicator for evaluating vegetation change, monitoring land surface fluxes or predicting crop models. Due to the great availability of images provided by ...
    • Unpaired spatio-temporal fusion of image patches (USTFIP) from cloud covered images 

      Goyena Baroja, Harkaitz; Pérez Goya, Unai Upna Orcid; Montesino San Martín, Manuel Upna Orcid; Militino, Ana F. Upna Orcid; Wang, Qunming; Atkinson, Peter M.; Ugarte Martínez, María Dolores Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      Spatio-temporal image fusion aims to increase the frequency and resolution of multispectral satellite sensor images in a cost-effective manner. However, practical constraints on input data requirements and computational ...
    • Using RGISTools to estimate water levels in reservoirs and lakes 

      Militino, Ana F. Upna Orcid; Montesino San Martín, Manuel Upna Orcid; Pérez Goya, Unai Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      The combination of freely accessible satellite imagery from multiple programs improves the spatio-temporal coverage of remote sensing data, but it exhibits barriers regarding the variety of web services, file formats, and ...

      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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