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Listar por autor "Ortega Ramírez, Juan Antonio"                

Mostrando ítems 1-20 de 191

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      A Comparison of Objective and Subjective Sleep Quality Measurement in a Group of Elderly Persons in a Home Environment 

      Gaiduk, Maksym; Seepold, Ralf; Martínez Madrid, Natividad; Ortega Ramírez, Juan Antonio; Conti, Massimo; Orcioni, Simone; Penzel, Thomas; Scherz, Wilhelm Daniel; Perea, Juan José; Serrano Alarcón, Ángel; Weiss, Gerald (SpringerLink, 2020)
      The main aim of presented in this manuscript research is to compare the results of objective and subjective measurement ...
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      A Context-Oriented System For Mobile Devices 

      Cuadrado Cordero, Ismael; Soria Morillo, Luis Miguel; Ortega Ramírez, Juan Antonio; González Abril, Luis (Universidad de Sevilla, 2011-06)
      Our work provides developers of context-based application for mobile devices a framework for developing comprehensive and ...
    • Artículo
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      A framework for semiqualitative reasoning in engineering applications 

      Martínez Gasca, Rafael; Ortega Ramírez, Juan Antonio; Toro Bonilla, Miguel (Taylor and Francis, 2002)
      In most cases the models for experimentation, analysis, or design in engineering applications take into account only ...
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      A framework to translate UML class generalization into Java Code 

      Sánchez, Pedro; Letelier, Patricio; Pastor, Juan Ángel; Ortega Ramírez, Juan Antonio (SpringerLink, 2002-09)
      The concept of generalization used during analysis when building a class diagram has a close relationship with the notion ...
    • Capítulo de Libro
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      A Home E-Health System for Dependent People Based on OSGI 

      Martín, Jaime; Seepold, Ralf; Martínez Madrid, Natividad; Álvarez García, Juan Antonio; Fernández Montes González, Alejandro; Ortega Ramírez, Juan Antonio (Springer, 2009)
      This chapter presents a e-health system for dependent people installed in a home environment. After reviewing the state ...
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      A location of robots proposal in collaborative environments 

      Álvarez, M. A.; Fernández Montes González, Alejandro; Ortega Ramírez, Juan Antonio; Velasco Morente, Francisco (ARCA: Automatización del Razonamiento Cualitativo y Aplicaciones, 2008-06)
      This paper proposes a method to localize a robot in a collaborative enviroment when it can not do itself. In a enviroment ...
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      A Model for Qualitative Colour Description and Comparison 

      Falomir, Zoe; Museros, Lledó; Ortega Ramírez, Juan Antonio; Velasco Morente, Francisco (2011-07)
      A model for Qualitative Colour Description and Comparison (QCDC) is presented in this paper. Using Hue Saturation and ...
    • Artículo
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      A model for the qualitative description of images based on visual and spatial features 

      Falomir, Zoe; Museros, Lledó; González Abril, Luis; Escrig, María Teresa; Ortega Ramírez, Juan Antonio (ScienceDirect, 2012)
      An approach that provides a qualitative description of any image is presented in this paper. The main visual features ...
    • Artículo
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      A new approach to qualitative learning in time series 

      González Abril, Luis; Velasco Morente, Francisco; Ortega Ramírez, Juan Antonio; Cuberos, Francisco Javier (ScienceDirect, 2009-08)
      In this paper the k-nearest-neighbours (KNN) based method is presented for the classification of time series which use ...
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      A new back-propagation algorithm with momentum coefficient for medical datasets 

      Montes, V.; Chincho, J.M.; Álvarez, M.A.; Soria Morillo, Luis Miguel; Ortega Ramírez, Juan Antonio (Universidad de Sevilla, 2013)
      The standard backward propagation of errors algo rithm (abbreviated as back-propagation algorithm) is commonly used for ...
    • Artículo
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      A new kernel to use with discretized temporal series 

      Cuberos García-Baquero, Francisco Javier; González Abril, Luis; Velasco Morente, Francisco; Ortega Ramírez, Juan Antonio (2007)
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      A new Kernel to use with discretized Temporal Series 

      Cuberos, Francisco Javier; González Abril, Luis; Velasco Morente, Francisco; Ortega Ramírez, Juan Antonio; Angulo, C. (Edición Digital @tres, 2005-06)
      In this papera new kernel, from statistical learning theory, is proposed to work with symbols chains (words) obtained from ...
    • Artículo
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      A Novel Approach to Trojan Horse Detection in Mobile Phones Messaging and Bluetooth Services 

      Ortega Ramírez, Juan Antonio; Fuentes Brenes, Daniel; Álvarez García, Juan Antonio; González Abril, Luis; Velasco Morente, Francisco (Korean Society for Internet Information, 2011)
      A method to detect Trojan horses in messaging and Bluetooth in mobile phones by means of monitoring the events produced ...
    • Artículo
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      A portable ECG for recording and flexible development of algorithms and stress detection 

      Scherz, Wilhelm Daniel; Baun, Jannik; Seepold, Ralf; Martínez Madrid, Natividad; Ortega Ramírez, Juan Antonio (ScienceDirect, 2020)
      Cardiovascular diseases are directly or indirectly responsible for up to 38.5% of all deaths in Germany and thus represent ...
    • Artículo
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      A probabilistic tri-class support vector machine 

      Ortega Ramírez, Juan Antonio; González Abril, Luis; Velasco Morente, Francisco; Angulo, Cecilio (2010)
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      A proposal on an energy-saving policy on context based system 

      Cuadrado Cordero, Ismael; Soria Morillo, Luis Miguel (ARCA: Automatización del Razonamiento Cualitativo y Aplicaciones, 2013-06)
      During the last decade, technology has created a new field in software development, known as pervasive computing, thank ...
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      A Proposal to Evolving Towards Digital Twins in Healthcare 

      Angulo, Cecilio; González Abril, Luis; Raya, Cristóbal; Ortega Ramírez, Juan Antonio (SpringerLink, 2020-05)
      The main objective in this proposal is to orchestrate an ecosystem of manipulation of reliable and safe data, applied to ...
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      A qualitative methodology to reduce features in classification problems 

      Álvarez, M. A.; González Abril, Luis; Ortega Ramírez, Juan Antonio; Soria Morillo, Luis Miguel (Northwestern University, 2011)
      In this paper, a preliminary methodology which quantifies the dependence between features in a data set by using the ...
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      A quantitative methodology to identify related features in data sets 

      Álvarez, Miguel Ángel; González Abril, Luis; Ortega Ramírez, Juan Antonio; Soria Morillo, Luis Miguel; Cuberos Gallardo, Francisco José (Universidad de Sevilla, 2011-06)
      In this paper, a methodology which quantifies the dependence beteen features in a data set is developed. This methodology ...
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      A Semiquantitative Approach to Study Semiqualitative Systems 

      Ortega Ramírez, Juan Antonio; Martínez Gasca, Rafael; Toro Bonilla, Miguel; Torres Valderrama, Jesús (Springer, 2002)
      In this paper is proposed a semiquantitative methodology to study models of dynamic systems with qualitative and quantitative ...