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Ph.D. Oscar Ovidio Calzadilla Perez

Universidad Catolica de Temuco, Departamento de Educación e Innovación, Faculty Member

Universidad de Holguín, Departamento de Educación Primaria, Post-Doc

Universidad Mayor de Chile, Escuela de Postgrados en Educación, Académico

Universidad Catolica de Temuco, Departamento de Infancia y Educación Básica, Faculty Member

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Académico e Investigador, Facultad de Educación, Universidad Católica de Temuco. Académico de la Escuela de Postgrados, Facultad de Humanidades, Universidad Mayor, Chile. Licenciado en Educación Primaria, Máster en Ciencias Educación y Doctor en Ciencias Pedagógicas (Ph.D.). Autor de programas para la formación inicial y continua de docentes, libros, capítulos de libros y 35 artículos publicados en España, Alemania, Ecuador, Colombia, Uruguay, Costa Rica y Cuba. Árbitro de revistas científicas, acreditado en la Web of Science (WoS).
Phone: 5354790956
Address: Calle 1ro. de Mayo No. 2A E/ Josué País y Héctor Olmeda Rpto.: La Aduana, Holguín, Holguín, Cuba.

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Papers by Ph.D. Oscar Ovidio Calzadilla Perez

Proceder metodológico para la sistematización de resultados científicos sobre comprensión de textos

Innovaciones Educativas

La universidad actual tiene entre sus desafíos generar conocimiento científico mediante la sistem... more La universidad actual tiene entre sus desafíos generar conocimiento científico mediante la sistematización de los resultados de investigaciones precedentes. En este contexto la sistematización en sí misma tiene el potencial de convertirse en un resultado científico nuevo basado en la resignificación, integración y perfeccionamiento de indagaciones precedentes. A los efectos de lo planteado el objetivo de este trabajo radica en: construir una experiencias basada en el estudio de sistematización de resultados científicos con los fundamentos teórico-didácticos sobre el tratamiento a la comprensión de textos en la asignatura Lengua Española del nivel Primario. esto condujo al empleo de métodos del nivel teórico: analítico-sintético, inductivo-deductivo, tránsito de lo abstracto a lo concreto, sistémico-estructural-funcional y la sistematización; y, del nivel empírico el análisis de documentos. Además, procedimientos matemáticos como la agrupación y registro de datos que enriquecieron el...

La estimulación del talento verbal en la escuela primaria / Stimulating verbal talent in the elementary school

by Maritza Salazar and Ph.D. Oscar Ovidio Calzadilla Perez

Transformación, 2017

La estimulacion del talento verbal constituye un problema epistemologico que genera insuficiencia... more La estimulacion del talento verbal constituye un problema epistemologico que genera insuficiencias en las estrategias para su atencion educativa. Por ello, se socializa la estructuracion teorica de una concepcion pedagogica, contentiva de contribuciones en torno a la definicion del concepto de talento verbal, los niveles de formacion de este, la caracterizacion psicopedagogica del escolar primario con talento verbal, las premisas que direccionan el proceso de estimulacion y el principio de la combinacion pedagogica de la aceleracion y el enriquecimiento; lo cual se introduce en la practica educativa por el maestro mediante una estrategia. Se empleo como metodo fundamental el estudio de casos, que integra el analisis longitudinal en una muestra unica de escolares cubanos entre los anos 2007 y 2013.Las aportaciones a la teoria pedagogica se obtienen de la interpretacion hermeneutica de las evidencias obtenidas en los cortes transversales del estudio cualitativo, de cuyo ascenso dialec...

PROGRAMA ANALÍTICO ASIGNATURA: COMUNICACIÓN Y LENGUAJE (DISCIPLINA: ESTUDIOS LINGÜÍSTICOS Y LITERARIOS) CARRERAS

Erratum to: Parasitism and the demography of wheat stem sawfly larvae, Cephus cinctus

BioControl, 2011

Previous research has suggested that insect herbivores in protected environments have higher mort... more Previous research has suggested that insect herbivores in protected environments have higher mortalities from biotic factors such as parasitism compared to herbivores in less protected situations, although overall mortalities in protected environments are often lower. However, this has not been examined using life table approaches. In this study, we used demographic methods to characterize the mortality dynamics of parasitism for pre-diapause wheat stem sawfly larvae, Cephus cintus Norton (Hymenoptera: Cephidae), a stem-mining wheat pest. Larvae were intensively sampled from commercial wheat fields at two locations in Montana, USA from 2005 through 2008. The feeding larvae present in the summer succumbed to only two mortality categories: parasitism and unknown factors. In Conrad, a location with relatively high densities of the parasitoids, mortality by parasitism was largely irreplaceable. In contrast, in Amsterdam, where parasitism did not occur to any appreciable degree, overall mortality remained relatively low. Keywords Multiple decrement life table Á Mortality risk Á Biological control Á Parasitoid Á Bracon cephi Á Bracon lissogaster 123

Comentarios a la guía de práctica clínica de la ESC 2013 sobre estimulación cardiaca y terapia de resincronización

Revista Espanola De Cardiologia, 2014

Comentarios a la guía de práctica clínica de la ESC sobre diagnóstico y tratamiento de la insufic... more

Applying fuzzy logic in video surveillance systems

In this work, the application of fuzzy logic in surveillance systems based on cameras is analyzed... more In this work, the application of fuzzy logic in surveillance systems based on cameras is analyzed. Three different fuzzy systems have been tested and compared with a crisp decision system. The first one has been developed using an expert knowledge, the second one was learned from recorded videos, and a third one is developed as a refinement taking into account evaluation with ground truth. In all cases, the core of the system is the association function, in which the developed fuzzy system takes decision about what blobs (detected pixels grouped in a zone) belong to what tracks. In this work the surveillance video system is deployed in an airport. It is embedded in an A-SMGCS Surveillance function for airport surface, based on video data processing, in charge of the automatic detection, identification and tracking of all interesting targets (aircraft and relevant ground vehicles). The system evaluation has been developed using an evaluation function specifically designed for this type of problem. Results obtained with real data in representative ground operations show different capabilities for each system to solve complex scenarios and to improve tracking accuracy.

$Research paper thumbnail of Análisis de la difracción por elementos cuadrados$

Análisis de la difracción por elementos cuadrados

Inge Cuc, Oct 31, 2012

For this paper, Fresnel diffraction equation was used and fast Fourier transform (FFT) method was... more For this paper, Fresnel diffraction equation was used and fast Fourier transform (FFT) method was implemented to analyze flat monochromatic wave front propagation through different types of slits. A Matlab simulation was performed and the diffraction pattern was projected in an observation plane. In this Matlab simulation, diffraction pattern and irradiance were studied based on the distance to the plane of observation. Slits were also arranged so Young`s interference phenomenon and its evolution, depending on the distance, could be observed.

Comparison Between Genetic Algorithms and the Baum-Welch Algorithm in Learning HMMs for Human Activity Classification

Proceedings of the 2007 Evoworkshops 2007 on Evocomnet Evofin Evoiasp Evointeraction Evomusart Evostoc and Evotranslog Applications of Evolutionary Computing, Jun 22, 2009

A Hidden Markov Model (HMM) is used as an efficient and robust technique for human activities cla... more A Hidden Markov Model (HMM) is used as an efficient and robust technique for human activities classification. The HMM evaluates a set of video recordings to classify each scene as a function of the future, actual and previous scenes. The probabilities of transition between states of the HMM and the observation model should be adjusted in order to obtain a correct classification. In this work, these matrixes are estimated using the well known Baum-Welch algorithm that is based on the definition of the real observations as a mixture of two Gaussians for each state. The application of the GA follows the same principle but the optimization is carried out considering the classification. In this case, GA optimizes the Gaussian parameters considering as a fitness function the results of the classification application. Results show the improvement of GA techniques for human activities recognition. * Funded by projects CICYT TSI2005-07344, CICYT TEC2005-07-186 and CAM MADRINET S-0505/TIC/0255.

Dasein y cotidianidad: apuntes para una aproximación epistemológica del individuo en las Ciencias Sociales

Psicologia Revista Revista Da Faculdade De Ciencias Humanas E Da Saude Issn 1413 4063, 2011

O estudo da realidade social pode apresentar obstáculos para aqueles estudiosos das Ciências Soci... more O estudo da realidade social pode apresentar obstáculos para aqueles estudiosos das Ciências Sociais que continuam pensando-a desde uma epistemologia positivista, dado que a coisificação dos indivíduos escurece o mundo intersubjetivo e a construção subjetiva da existência humana. Este artigo propõe um enfoque epistemológico desde a fenomenologia existencial de Heidegger cujo valor interpretativo e metodológico permite desvelar o horizonte de sentido e a rede de significados que os indivíduos estabelecem na cotidianidade. Só assim, podemos compreender como o indivíduo vive e sente, sem cometer o erro epistemológico de obviar o mundo de vida onde habita. A cotidianidade é o acesso para compreender a realidade social desvelada em práticas e ações concretas que os indivíduos realizam numa época e geografia específica. Palavras-chave: indivíduo, cotidianidade, mundo da vida, compreensão.

Comparison of various strategies of implementation of the algorithm of encryption AES on FPGA

2006 IEEE International Symposium on Industrial Electronics, 2006

The data security is a significant subject for which various solutions algorithms were proposed. ... more The data security is a significant subject for which various solutions algorithms were proposed. In 2001, Advanced Encryption System (AES) was accepted like a standard FIPS. AES is a symmetrical algorithm of encoding intended to replace DES which had already shown certain faults of safety in the data protection. Since then, of many achievements on hardware and software were proposed by combining various architectures. The throughput reached go from 20 Mbps to 70 Gbps according to technology and architecture used. This article presents an architecture which can be implemented on the FPGA Xilinx XC2V6000, by applying dynamic reconfiguration and reaching a speed of execution of 43 Gbps. This architecture employs only 2xxx CLB' S allowing a considerable economy of the resources.

Evaluation model for long term data archiving systems in the context of Earth Observation

2011 IEEE 27th Symposium on Mass Storage Systems and Technologies (MSST), 2011

The Long term data Archive Study on new Technologies (LAST) project aims to assess and benchmark ... more

Computational Intelligence in Visual Sensor Networks: Improving Video Processing Systems

Studies in Computational Intelligence, 2008

In this chapter we will describe several approaches to develop video analysis and segmentation sy... more In this chapter we will describe several approaches to develop video analysis and segmentation systems based on visual sensor networks using computational intelligence. We review the types of problems and algorithms used, and how computational intelligence paradigms can help to build competitive solutions. computational intelligence is used here from an “engineering” point of view: the designer is provided with tools which can help in designing or refining solutions to cope with real-world problems. This implies having an “a ...

Comparison of Classifiers for Human Activity Recognition

Lecture Notes in Computer Science, 2007

Page 1. Comparison of Classifiers for Human Activity Recognition* Óscar Pérez1, Massimo Piccardi2... more

CoSMiC: A hierarchical cloudlet-based storage architecture for mobile clouds

Simulation Modelling Practice and Theory, 2015

ABSTRACT Storage capacity is a constraint for current mobile devices. Mobile Cloud Computing (MCC... more ABSTRACT Storage capacity is a constraint for current mobile devices. Mobile Cloud Computing (MCC) is developed to augment device capabilities, facilitating to mobile users store/access of a large dataset on the cloud through wireless networks. However, given the limitations of network bandwidth, latencies, and devices battery life, new solutions are needed to extend the usage of mobile devices. This paper presents a novel design and implementation of a hierarchical cloud storage system for mobile devices based on multiple I/O caching layers. The solution relies on Memcached as a cache system, preserving its powerful capacities such as performance, scalability, and quick and portable deployment. The solution targets to reduce the I/O latency of current mobile cloud solutions. The proposed solution consists of a user-level library and extended Memcached back-ends. The solution aims to be hierarchical by deploying Memcached-based I/O cache servers across all the I/O infrastructure datapath. Our experimental results demonstrate that CoSMiC can significantly reduce the round-trip latency in presence of low cache hit ratios compared with a 3G connection even when using a multi-level cache hierarchy.

Comparison Between Genetic Algorithms and the Baum-Welch Algorithm in Learning HMMs for Human Activity Classification

Lecture Notes in Computer Science, 2007

Page 1. M. Giacobini et al. (Eds.): EvoWorkshops 2007, LNCS 4448, pp. 399–406, 2007. © Springer-V... more

Robust control of a pH control plant

Proceedings of International Conference on Control Applications, 1995

We are going to present how we designed robust controllers for a laboratory plant, which produces... more We are going to present how we designed robust controllers for a laboratory plant, which produces a dissolution of HCl of constant concentration despite variations in the plant parameters. To design the controllers by loopshaping we used the CC control package and the ACSL simulation software. The designed control system allowed us to operate in a wide range of pH

Umbra Designer: Graphical Modelling for Telephony Services

Lecture Notes in Computer Science, 2013

ABSTRACT Almira Labs is a software company that develops value-added services for the telecommuni... more ABSTRACT Almira Labs is a software company that develops value-added services for the telecommunications industry. It is focused on innovative technologies that enable enterprise business and mobile and landline operators to offer next-generation voice-driven applications for all types of phones. Telephony services are built atop the proprietary Umbra framework, which is a Java API relying on the JAIN SLEE standard for event-based communication applications. This paper describes Umbra Designer, a novel graphical modelling tool for the visual development of telephony services, from which Java code for the Umbra framework is synthesized. In this way, it is easy to develop ready-to-use services, even by users not familiar with the Java API or the JAIN SLEE standard. We also report on some experiments aimed at measuring the efficiency gain derived from using the graphical tool, compared with coding directly using the Java API.

Evolving Parameters of Surveillance Video Systems for Non-overfitted Learning

Lecture Notes in Computer Science, 2005

Several parameters of a video-based tracking system, developed for airport surveillance by deploy... more Several parameters of a video-based tracking system, developed for airport surveillance by deploying several cameras, are optimized using Evolution Strategies (ES). For evaluating the performance of the system, an evaluation metric is proposed. The optimization has been carried out using different video sequences in which the tracking system is evaluated over several trajectories. Firstly, the optimization is carried out over specific trajectories in each sequence. Each solution is then validated with the rest of trajectories. Secondly, the generalization problem of ES (the search of appropriate solutions for general situations) is approached considering combinations of trajectories to build the fitness function. In this way, the optimization is carried out over a set of trajectories. Then, the quality of result is evaluated over every trajectory. Experiments show how the optimization strategy of combining tracks allows improving the generalization capability of the trained system.

Adjustment of Surveillance Video Systems by a Performance Evaluation Function

Lecture Notes in Computer Science, 2005

This paper proposes an evaluation metric for assessing the performance of a video tracking system... more This paper proposes an evaluation metric for assessing the performance of a video tracking system. This metric is applied to adjust the parameters that regulates the video tracking system in order to improve the system perfomance. Thus, the automated optimization method is based on evolutionary computation techniques. The illustration of the process is carried out using three very different video sequences in which the evaluation function assesses trajectories of airplanes, cars or baggagetrucks in an airport surveillance application.

Feasibility study of semantic sensor networks in the context of smart grids

2011 16th International Conference on Intelligent System Applications to Power Systems, 2011

ABSTRACT Since the research in Information and Communications Technologies has provided strong pr... more ABSTRACT Since the research in Information and Communications Technologies has provided strong progress in the field of distributed sensor networks and geo-referenced systems, the fundamental sensor architectures and frameworks developed in Europe are reviewed in this work in order to look for their suitability to Smart Grids, providing with results of interest, drawbacks, and a proposal of general requirements for the identification of an appropriate integration framework. Additionally, a practical case of electrical network is analyzed (IEEE 14-Node Network) oriented to the estimation of fault sensors, describing aspects often studied separately in literature like sensor networks and electrical networks. In this sense, several scenarios have been considered including a simulated processing in order to reveal some of the potential advantages that can be found with the implementation of Semantic Services.

Proceder metodológico para la sistematización de resultados científicos sobre comprensión de textos

Innovaciones Educativas

La universidad actual tiene entre sus desafíos generar conocimiento científico mediante la sistem... more La universidad actual tiene entre sus desafíos generar conocimiento científico mediante la sistematización de los resultados de investigaciones precedentes. En este contexto la sistematización en sí misma tiene el potencial de convertirse en un resultado científico nuevo basado en la resignificación, integración y perfeccionamiento de indagaciones precedentes. A los efectos de lo planteado el objetivo de este trabajo radica en: construir una experiencias basada en el estudio de sistematización de resultados científicos con los fundamentos teórico-didácticos sobre el tratamiento a la comprensión de textos en la asignatura Lengua Española del nivel Primario. esto condujo al empleo de métodos del nivel teórico: analítico-sintético, inductivo-deductivo, tránsito de lo abstracto a lo concreto, sistémico-estructural-funcional y la sistematización; y, del nivel empírico el análisis de documentos. Además, procedimientos matemáticos como la agrupación y registro de datos que enriquecieron el...

La estimulación del talento verbal en la escuela primaria / Stimulating verbal talent in the elementary school

by Maritza Salazar and Ph.D. Oscar Ovidio Calzadilla Perez

Transformación, 2017

La estimulacion del talento verbal constituye un problema epistemologico que genera insuficiencia... more La estimulacion del talento verbal constituye un problema epistemologico que genera insuficiencias en las estrategias para su atencion educativa. Por ello, se socializa la estructuracion teorica de una concepcion pedagogica, contentiva de contribuciones en torno a la definicion del concepto de talento verbal, los niveles de formacion de este, la caracterizacion psicopedagogica del escolar primario con talento verbal, las premisas que direccionan el proceso de estimulacion y el principio de la combinacion pedagogica de la aceleracion y el enriquecimiento; lo cual se introduce en la practica educativa por el maestro mediante una estrategia. Se empleo como metodo fundamental el estudio de casos, que integra el analisis longitudinal en una muestra unica de escolares cubanos entre los anos 2007 y 2013.Las aportaciones a la teoria pedagogica se obtienen de la interpretacion hermeneutica de las evidencias obtenidas en los cortes transversales del estudio cualitativo, de cuyo ascenso dialec...

PROGRAMA ANALÍTICO ASIGNATURA: COMUNICACIÓN Y LENGUAJE (DISCIPLINA: ESTUDIOS LINGÜÍSTICOS Y LITERARIOS) CARRERAS

Erratum to: Parasitism and the demography of wheat stem sawfly larvae, Cephus cinctus

BioControl, 2011

Previous research has suggested that insect herbivores in protected environments have higher mort... more Previous research has suggested that insect herbivores in protected environments have higher mortalities from biotic factors such as parasitism compared to herbivores in less protected situations, although overall mortalities in protected environments are often lower. However, this has not been examined using life table approaches. In this study, we used demographic methods to characterize the mortality dynamics of parasitism for pre-diapause wheat stem sawfly larvae, Cephus cintus Norton (Hymenoptera: Cephidae), a stem-mining wheat pest. Larvae were intensively sampled from commercial wheat fields at two locations in Montana, USA from 2005 through 2008. The feeding larvae present in the summer succumbed to only two mortality categories: parasitism and unknown factors. In Conrad, a location with relatively high densities of the parasitoids, mortality by parasitism was largely irreplaceable. In contrast, in Amsterdam, where parasitism did not occur to any appreciable degree, overall mortality remained relatively low. Keywords Multiple decrement life table Á Mortality risk Á Biological control Á Parasitoid Á Bracon cephi Á Bracon lissogaster 123

Comentarios a la guía de práctica clínica de la ESC 2013 sobre estimulación cardiaca y terapia de resincronización

Revista Espanola De Cardiologia, 2014

Comentarios a la guía de práctica clínica de la ESC sobre diagnóstico y tratamiento de la insufic... more

Applying fuzzy logic in video surveillance systems

In this work, the application of fuzzy logic in surveillance systems based on cameras is analyzed... more In this work, the application of fuzzy logic in surveillance systems based on cameras is analyzed. Three different fuzzy systems have been tested and compared with a crisp decision system. The first one has been developed using an expert knowledge, the second one was learned from recorded videos, and a third one is developed as a refinement taking into account evaluation with ground truth. In all cases, the core of the system is the association function, in which the developed fuzzy system takes decision about what blobs (detected pixels grouped in a zone) belong to what tracks. In this work the surveillance video system is deployed in an airport. It is embedded in an A-SMGCS Surveillance function for airport surface, based on video data processing, in charge of the automatic detection, identification and tracking of all interesting targets (aircraft and relevant ground vehicles). The system evaluation has been developed using an evaluation function specifically designed for this type of problem. Results obtained with real data in representative ground operations show different capabilities for each system to solve complex scenarios and to improve tracking accuracy.

$Research paper thumbnail of Análisis de la difracción por elementos cuadrados$

Análisis de la difracción por elementos cuadrados

Inge Cuc, Oct 31, 2012

For this paper, Fresnel diffraction equation was used and fast Fourier transform (FFT) method was... more For this paper, Fresnel diffraction equation was used and fast Fourier transform (FFT) method was implemented to analyze flat monochromatic wave front propagation through different types of slits. A Matlab simulation was performed and the diffraction pattern was projected in an observation plane. In this Matlab simulation, diffraction pattern and irradiance were studied based on the distance to the plane of observation. Slits were also arranged so Young`s interference phenomenon and its evolution, depending on the distance, could be observed.

Comparison Between Genetic Algorithms and the Baum-Welch Algorithm in Learning HMMs for Human Activity Classification

Proceedings of the 2007 Evoworkshops 2007 on Evocomnet Evofin Evoiasp Evointeraction Evomusart Evostoc and Evotranslog Applications of Evolutionary Computing, Jun 22, 2009

A Hidden Markov Model (HMM) is used as an efficient and robust technique for human activities cla... more A Hidden Markov Model (HMM) is used as an efficient and robust technique for human activities classification. The HMM evaluates a set of video recordings to classify each scene as a function of the future, actual and previous scenes. The probabilities of transition between states of the HMM and the observation model should be adjusted in order to obtain a correct classification. In this work, these matrixes are estimated using the well known Baum-Welch algorithm that is based on the definition of the real observations as a mixture of two Gaussians for each state. The application of the GA follows the same principle but the optimization is carried out considering the classification. In this case, GA optimizes the Gaussian parameters considering as a fitness function the results of the classification application. Results show the improvement of GA techniques for human activities recognition. * Funded by projects CICYT TSI2005-07344, CICYT TEC2005-07-186 and CAM MADRINET S-0505/TIC/0255.

Dasein y cotidianidad: apuntes para una aproximación epistemológica del individuo en las Ciencias Sociales

Psicologia Revista Revista Da Faculdade De Ciencias Humanas E Da Saude Issn 1413 4063, 2011

O estudo da realidade social pode apresentar obstáculos para aqueles estudiosos das Ciências Soci... more O estudo da realidade social pode apresentar obstáculos para aqueles estudiosos das Ciências Sociais que continuam pensando-a desde uma epistemologia positivista, dado que a coisificação dos indivíduos escurece o mundo intersubjetivo e a construção subjetiva da existência humana. Este artigo propõe um enfoque epistemológico desde a fenomenologia existencial de Heidegger cujo valor interpretativo e metodológico permite desvelar o horizonte de sentido e a rede de significados que os indivíduos estabelecem na cotidianidade. Só assim, podemos compreender como o indivíduo vive e sente, sem cometer o erro epistemológico de obviar o mundo de vida onde habita. A cotidianidade é o acesso para compreender a realidade social desvelada em práticas e ações concretas que os indivíduos realizam numa época e geografia específica. Palavras-chave: indivíduo, cotidianidade, mundo da vida, compreensão.

Comparison of various strategies of implementation of the algorithm of encryption AES on FPGA

2006 IEEE International Symposium on Industrial Electronics, 2006

The data security is a significant subject for which various solutions algorithms were proposed. ... more The data security is a significant subject for which various solutions algorithms were proposed. In 2001, Advanced Encryption System (AES) was accepted like a standard FIPS. AES is a symmetrical algorithm of encoding intended to replace DES which had already shown certain faults of safety in the data protection. Since then, of many achievements on hardware and software were proposed by combining various architectures. The throughput reached go from 20 Mbps to 70 Gbps according to technology and architecture used. This article presents an architecture which can be implemented on the FPGA Xilinx XC2V6000, by applying dynamic reconfiguration and reaching a speed of execution of 43 Gbps. This architecture employs only 2xxx CLB' S allowing a considerable economy of the resources.

Evaluation model for long term data archiving systems in the context of Earth Observation

2011 IEEE 27th Symposium on Mass Storage Systems and Technologies (MSST), 2011

The Long term data Archive Study on new Technologies (LAST) project aims to assess and benchmark ... more

Computational Intelligence in Visual Sensor Networks: Improving Video Processing Systems

Studies in Computational Intelligence, 2008

In this chapter we will describe several approaches to develop video analysis and segmentation sy... more In this chapter we will describe several approaches to develop video analysis and segmentation systems based on visual sensor networks using computational intelligence. We review the types of problems and algorithms used, and how computational intelligence paradigms can help to build competitive solutions. computational intelligence is used here from an “engineering” point of view: the designer is provided with tools which can help in designing or refining solutions to cope with real-world problems. This implies having an “a ...

Comparison of Classifiers for Human Activity Recognition

Lecture Notes in Computer Science, 2007

Page 1. Comparison of Classifiers for Human Activity Recognition* Óscar Pérez1, Massimo Piccardi2... more

CoSMiC: A hierarchical cloudlet-based storage architecture for mobile clouds

Simulation Modelling Practice and Theory, 2015

ABSTRACT Storage capacity is a constraint for current mobile devices. Mobile Cloud Computing (MCC... more ABSTRACT Storage capacity is a constraint for current mobile devices. Mobile Cloud Computing (MCC) is developed to augment device capabilities, facilitating to mobile users store/access of a large dataset on the cloud through wireless networks. However, given the limitations of network bandwidth, latencies, and devices battery life, new solutions are needed to extend the usage of mobile devices. This paper presents a novel design and implementation of a hierarchical cloud storage system for mobile devices based on multiple I/O caching layers. The solution relies on Memcached as a cache system, preserving its powerful capacities such as performance, scalability, and quick and portable deployment. The solution targets to reduce the I/O latency of current mobile cloud solutions. The proposed solution consists of a user-level library and extended Memcached back-ends. The solution aims to be hierarchical by deploying Memcached-based I/O cache servers across all the I/O infrastructure datapath. Our experimental results demonstrate that CoSMiC can significantly reduce the round-trip latency in presence of low cache hit ratios compared with a 3G connection even when using a multi-level cache hierarchy.

Comparison Between Genetic Algorithms and the Baum-Welch Algorithm in Learning HMMs for Human Activity Classification

Lecture Notes in Computer Science, 2007

Page 1. M. Giacobini et al. (Eds.): EvoWorkshops 2007, LNCS 4448, pp. 399–406, 2007. © Springer-V... more

Robust control of a pH control plant

Proceedings of International Conference on Control Applications, 1995

We are going to present how we designed robust controllers for a laboratory plant, which produces... more We are going to present how we designed robust controllers for a laboratory plant, which produces a dissolution of HCl of constant concentration despite variations in the plant parameters. To design the controllers by loopshaping we used the CC control package and the ACSL simulation software. The designed control system allowed us to operate in a wide range of pH

Umbra Designer: Graphical Modelling for Telephony Services

Lecture Notes in Computer Science, 2013

ABSTRACT Almira Labs is a software company that develops value-added services for the telecommuni... more ABSTRACT Almira Labs is a software company that develops value-added services for the telecommunications industry. It is focused on innovative technologies that enable enterprise business and mobile and landline operators to offer next-generation voice-driven applications for all types of phones. Telephony services are built atop the proprietary Umbra framework, which is a Java API relying on the JAIN SLEE standard for event-based communication applications. This paper describes Umbra Designer, a novel graphical modelling tool for the visual development of telephony services, from which Java code for the Umbra framework is synthesized. In this way, it is easy to develop ready-to-use services, even by users not familiar with the Java API or the JAIN SLEE standard. We also report on some experiments aimed at measuring the efficiency gain derived from using the graphical tool, compared with coding directly using the Java API.

Evolving Parameters of Surveillance Video Systems for Non-overfitted Learning

Lecture Notes in Computer Science, 2005

Several parameters of a video-based tracking system, developed for airport surveillance by deploy... more Several parameters of a video-based tracking system, developed for airport surveillance by deploying several cameras, are optimized using Evolution Strategies (ES). For evaluating the performance of the system, an evaluation metric is proposed. The optimization has been carried out using different video sequences in which the tracking system is evaluated over several trajectories. Firstly, the optimization is carried out over specific trajectories in each sequence. Each solution is then validated with the rest of trajectories. Secondly, the generalization problem of ES (the search of appropriate solutions for general situations) is approached considering combinations of trajectories to build the fitness function. In this way, the optimization is carried out over a set of trajectories. Then, the quality of result is evaluated over every trajectory. Experiments show how the optimization strategy of combining tracks allows improving the generalization capability of the trained system.

Adjustment of Surveillance Video Systems by a Performance Evaluation Function

Lecture Notes in Computer Science, 2005

This paper proposes an evaluation metric for assessing the performance of a video tracking system... more This paper proposes an evaluation metric for assessing the performance of a video tracking system. This metric is applied to adjust the parameters that regulates the video tracking system in order to improve the system perfomance. Thus, the automated optimization method is based on evolutionary computation techniques. The illustration of the process is carried out using three very different video sequences in which the evaluation function assesses trajectories of airplanes, cars or baggagetrucks in an airport surveillance application.

Feasibility study of semantic sensor networks in the context of smart grids

2011 16th International Conference on Intelligent System Applications to Power Systems, 2011

ABSTRACT Since the research in Information and Communications Technologies has provided strong pr... more ABSTRACT Since the research in Information and Communications Technologies has provided strong progress in the field of distributed sensor networks and geo-referenced systems, the fundamental sensor architectures and frameworks developed in Europe are reviewed in this work in order to look for their suitability to Smart Grids, providing with results of interest, drawbacks, and a proposal of general requirements for the identification of an appropriate integration framework. Additionally, a practical case of electrical network is analyzed (IEEE 14-Node Network) oriented to the estimation of fault sensors, describing aspects often studied separately in literature like sensor networks and electrical networks. In this sense, several scenarios have been considered including a simulated processing in order to reveal some of the potential advantages that can be found with the implementation of Semantic Services.

La Ensenanza de La Ortografia En La Escuela Primaria

El texto aborda la fundamentacion y el tratamiento didactico a uno de los problemas linguisticos,... more El texto aborda la fundamentacion y el tratamiento didactico a uno de los problemas linguisticos, didacticos y pedagogicos mas controvertidos de la educacion, la ensenanza de la ortografia. En su contenido se transita desde los fundamentos teoricos que requiere el maestro para dirigir el aprendizaje hasta como lograrlo con calidad. Se abordan conceptuaciones, la concepcion curricular de la ensenanza de la ortografia en la escuela primaria, criterios sobre los metodos y procedimientos de ensenanza, y se presenta una experiencia didactica validada en la practica educativa sobre como ensenar el uso de los signos de puntuacion en escolares primarios que cursan el sexto grado."

Métodos de enseñanza de la lectoescritura en la Educación Primaria

El texto incursiona en el complejo arte de los métodos de enseñanza de la lectoescritura en la Ed... more El texto incursiona en el complejo arte de los métodos de enseñanza de la lectoescritura en la Educación Primaria. Surge por la necesidad de enriquecer la preparación didáctica del personal docente, como condición para la mejora de la calidad del aprendizaje del español, en la búsqueda de la excelencia educativa. Se ofrecen criterios sobre las características de los métodos de enseñanza de la lectoescritura y sus procedimientos metodológicos. Se enfatiza en el uso del método Fónico-Analítico-Sintético, su metodología y ejemplos de actividades docentes. Al finalizar el texto se proponen situaciones de aprendizaje dirigidas a enriquecer la autopreparación del profesorado, a partir del contenido presentado. Los criterios expuestos han sido sistematizados en la formación del personal y en la dirección de proyectos de investigación.

Talento verbal: consideraciones teórico-prácticas para su estimulación

Se expone una visión pedagógicamente original en relación con la educación de las potencialidades... more Se expone una visión pedagógicamente original en relación con la educación de las potencialidades y capacidades: la estimulación del talento verbal. Los criterios contenidos en el texto son resultado de investigaciones aplicadas desarrolladas por el colectivo de investigadores del proyecto Centro Consultor para la Estimulación del Talento Verbal. Se sistematizan las principales concepciones y buenas prácticas asociadas a la estimulación del talento verbal en la escuela primaria cubana. En dos partes y siete temas se discute sobre: las polémicas de la estimulación del talento, sus antecedentes epistemológicos, la asunción del talento en términos de configuración psicológicas de la personalidad, la dicotomía entre capacidades y talento, la caracterización del escolar con talento verbal y se ofrecen situaciones de aprendizaje y recomendaciones metodológicas para su tratamiento didáctico en los contextos curriculares y extracurriculares. Los criterios expuestos se vinculan al tema del Doctorado en Ciencias Pedagógicas del autor.

PROGRAMA ANALÍTICO ASIGNATURA: COMUNICACIÓN Y LENGUAJE (DISCIPLINA: ESTUDIOS LINGÜÍSTICOS Y LITERARIOS) CARRERAS

GESTIÓN DE CIENCIA E INNOVACIÓN DIDÁCTICA DESDE LA INTEGRACIÓN DE LAS NEUROCIENCIAS EN LA FORMACIÓN DEL PROFESIONAL DE LA EDUCACIÓN PRIMARIA

The report exposes the sustainability of the administration of the science and the didactic innov... more The report exposes the sustainability of the administration of the science and the didactic innovation by means of the integration of the Neuroscience starting from two of its branches the Neuropedagogy and the Neurodidactics, in strategic, traverse processes and nouns that conform the map of process of the University of Holguín (UHo) and that are summed up in the formation of the professional of the Primary Education. The exposed approaches are validated in the University of Holguín (Cuba) and the Catholic University of Temuco (Chile) by the investigation group in Neuropedagogy. The sustainable character of the results is revealed in the completeness of the actions of Administration of human resources and Administration of the Quality (strategic processes) as condition to promote the continuous improvement in the search of the university excellence; also, of the transverzalitation of the internalization and computerization in the Investigation and the Formation (processes nouns), which takes as nucleus the production of scientific results. With the result that, the investigation administration becomes profesionalization nucleus for its impact in the scientific bring up to date of the disciplines General Pedagogic Formation and Didactics of the Primary Teaching through the transfer of results, the integration of curricular strategies, and the improvement of the curriculum with subjects (own and optional), the creation of interactive platforms, and the development of graduate degree actions. To the effect it is used as fundamental method the study of cases (situational) in their dialectical relationship with others of theoretical, empiric level and statistical procedures.