Listar DIAN-Artículos, capítulos... por título

Mostrando ítems 158-177 de 194

    • Rigidity results for complete spacelike submanifolds in plane fronted waves 

      Palomo, Francisco J.; Pelegrín, José A. S.; Romero, Alfonso (Springer, 2022)
      New rigidity results for complete non-compact spacelike submanifolds of arbitrary codimension in plane fronted waves are obtained. Under appropriate assumptions, we prove that a complete spacelike submanifold in these ...

    • Rule-based preprocessing for data stream mining using complex event processing 

      Ramírez, Aurora; Moreno, Nathalie; Vallecillo, A. (Wiley, 2021)
      Data preprocessing is known to be essential to produce accurate data from which mining methods are able to extract valuable knowledge. When data constantly arrives from one or more sources, preprocessing techniques need ...

    • Scalable CAIM Discretization on Multiple GPUs Using Concurrent Kernels 

      Cano, Alberto; Ventura Soto, S.; Cios, Krzysztof J. (2017)
      CAIM(Class-Attribute InterdependenceMaximization) is one of the stateof- the-art algorithms for discretizing data for which classes are known. However, it may take a long time when run on high-dimensional large-scale ...

    • Selecting patterns and features for between- and within- crop-row weed mapping using UAV-imagery 

      Pérez-Ortiz, María; Gutiérrez, Pedro A.; Torres-Sánchez, Jorge; Hervás-Martínez, César; López-Granados, Francisca; Peña, José Manuel (2017-03-30)
      This paper approaches the problem of weed mapping for precision agriculture, using imagery provided by Unmanned Aerial Vehicles (UAVs) from sun ower and maize crops. Precision agriculture referred to weed control is ...

    • Semantic segmentation of 3D car parts using UAV-based images 

      Jurado Rodríguez, David; Jurado, Juan M.; Pádua, Luís; Neto, Alexandre; Muñoz-Salinas, Rafael; Sousa, Joaquim J. (Elsevier, 2022)
      Environment understanding in real-world scenarios has gained an increased interest in research and industry. The advances in data capture and processing allow a high-detailed reconstruction from a set of multi-view images ...

    • Semi-supervised Learning for Ordinal Kernel Discriminant Analysis 

      Pérez-Ortiz, María; Gutiérrez, P.A.; Carbonero-Ruz, M.; Hervás-Martínez, César (Elsevier, 2016)
      Ordinal classication considers those classication problems where the labels of the variable to predict follow a given order. Naturally, labelled data is scarce or di_cult to obtain in this type of problems because, in ...

    • SI(FS)2: Fast simultaneous instance and feature selection for datasets with many features 

      García Pedrajas, Nicolás; Romero-del-Castillo, Juan A.; Cerruela García, Gonzalo (Elsevier, 2021)
      Data reduction is becoming increasingly relevant due to the enormous amounts of data that are constantly being produced in many fields of research. Instance selection is one of the most widely used methods for this task. ...

    • Sistema de consulta de notas a través de Páginas Web y de Telefonía Móvil 

      Cava Jiménez, David; Romero Morales, C.; Cruz Soto, José Luis; Ventura Soto, S. (Universidad de Córdoba, Vicerrectorado de Innovación y Calidad Docente, 2005)
      In this paper we are going to present a system which lets any student at Cordoba University knows what the final qualifications he has obtained in the different subjects he is registered are. The sytem lets him consult the ...

    • Sistema digital de catalogación y consulta de documentos académicos: Tesis, Tesinas, Proyectos de Fin de Carrera 

      Fernández García, Nicolás Luis; Malagón Oloya, Pablo José; Medina-Carnicer, R.; Madrid-Cuevas, F.J.; Carmona Poyato, Ángel (Universidad de Córdoba, Vicerrectorado de Innovación y Calidad Docente, 2005)
      A digital system has been developed on order to catalogue and consult academic documents: Theses, First Degree Dissertations and Technical Degree Final Projects. The system uses a listing of bibliographical subjects which ...

    • Sistema y método para el recubrimiento con elastómeros y fluoropolímeros de piezas y soportes metálicos 

      Trujillo Flores, Eduardo; Castro Triguero, Rafael; Vázquez Serrano, Francisco J.; Guerrero-Vaca, G. (Oficina de Transferencia de Resultados de la Investigación, 2011)
      El objeto de la invención es un método y un sistema para gobernar un robot industrial para aplicar recubrimientos del tipo antiadherente mediante elastómeros o fluoropolímeros en piezas y soportes metálicos, especialmente ...

    • Sistemas de evaluación de los alumnos mediante test informatizados utilizando telefonía móvil 

      Gálvez Espinal, C.; Ventura Soto, S.; Romero Morales, C. (Universidad de Córdoba, Vicerrectorado de Innovación y Calidad Docente, 2007)
      This paper describes a system for executing adaptive tests in mobile devices. Tests are generated in XML files using Test Editor that is a author tool integrated in AHA! system. These tests are interpreted by our system ...

    • Speeding Up Evolutionary Learning Algorithms using GPUs 

      Cano, Alberto; Zafra, Amelia; Ventura Soto, S. (ESTYLF, 2010)
      This paper propose a multithreaded Genetic Programming classi cation evaluation model using NVIDIA CUDA GPUs to reduce the computational time due to the poor perfor- mance in large problems. Two di erent clas- si ...

    • Speeding up Multiple Instance Learning Classification Rules on GPUs 

      Cano, Alberto; Zafra, Amelia; Ventura Soto, S. (2017)
      Multiple instance learning is a challenging task in supervised learning and data mining. How- ever, algorithm performance becomes slow when learning from large-scale and high-dimensional data sets. Graphics processing ...

    • sSLAM: Speeded-Up Visual SLAM Mixing Artificial Markers and Temporary Keypoints 

      Romero Ramírez, Francisco J.; Muñoz-Salinas, Rafael; Marín-Jiménez, M.J.; Cazorla, Miguel; Medina-Carnicer, R.; Romero Ramírez, Francisco J. (MDPI, 2023)
      Environment landmarks are generally employed by visual SLAM (vSLAM) methods in the form of keypoints. However, these landmarks are unstable over time because they belong to areas that tend to change, e.g., shadows or moving ...

    • State of the Art, Trends and Future of Bluetooth Low Energy, Near Field Communication and Visible Light Communication in the Development of Smart Cities 

      Cerruela García, Gonzalo; Luque Ruiz, Irene; Gómez-Nieto, Miguel Ángel (MDPI, 2016)
      The current social impact of new technologies has produced major changes in all areas of society, creating the concept of a smart city supported by an electronic infrastructure, telecommunications and information technology. ...

    • Stereo Pictorial Structure for 2D Articulated Human Pose Estimation 

      López-Quintero, Manuel I.; Marín-Jiménez, M.J.; Muñoz-Salinas, Rafael; Madrid-Cuevas, F.J.; Medina-Carnicer, R. (2015)
      In this paper, we consider the problem of 2D human pose estimation on stereo image pairs. In particular, we aim at estimating the location, orientation and scale of upper-body parts of people detected in stereo image ...

    • Study of the Applicability Domain of the QSAR Classification Models by Means of the Rivality and Modelability Indexes 

      Luque Ruiz, Irene; Gómez-Nieto, Miguel Ángel (MDPI, 2018)
      The reliability of a QSAR classification model depends on its capacity to achieve confident predictions of new compounds not considered in the building of the model. The results of this external validation process show ...

    • Subgroup Discovery in MOOCs: A Big Data Application for Describing Different Types of Learners 

      Luna, J.M.; Fardoun, H.M.; Padillo, Francisco; Romero Morales, C.; Ventura Soto, S. (Taylor & Francis, 2019)
      The aim of this paper is to categorize and describe di erent types of learners in mas- sive open online courses (MOOCs) by means of a subgroup discovery approach based on MapReduce. The nal objective is to discover ...

    • SWFAD-IOT: Sistema de Apoyo a la Docencia en un Entorno IoT 

      Cerruela García, Gonzalo; García Pedrajas, Nicolás; Luque Ruiz, Irene; Gómez-Nieto, Miguel Ángel (UCOPress, 2019)
      El presente trabajo muestra el desarrollo e implementación de un sistema de apoyo a la docencia mediante la web física en un entorno del Internet de las Cosas (IoT). El sistema está orientado al desarrollo de actividades ...

    • Teaching push-down automata and Turing machines 

      García-Osorio, César; Mediavilla-Sáiz, Iñigo; Jimeno-Visitación, Javier; García-Pedrajas, Nicolás (2014-02-27)
      In this paper we present the new version of a tool to assist in teaching formal languages and automata theory. In the previous version the tool provided algorithms for regular expressions, finite automata and context ...