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parallel optimization » parameter optimization (Expander búsqueda), parameters optimization (Expander búsqueda), para optimizacion (Expander búsqueda)
parallel optimization » parameter optimization (Expander búsqueda), parameters optimization (Expander búsqueda), para optimizacion (Expander búsqueda)
1
artículo
Publicado 2025
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The report addresses the management of parallel processes and synchronization in concurrent systems, highlighting common problems in accessing shared resources that affect efficiency and stability. It also highlights the need to optimize the management of large volumes of data and improve academic cooperation to develop advanced solutions.The objective of the study is to identify and analyze synchronization strategies that optimize parallel processes, evaluating their effectiveness in different scenarios and offering recommendations based on recent literature. A systematic review was conducted using the PRISMA methodology, selecting relevant articles published in the last five years and formulating key questions to guide the analysis. The results highlight that non-blocking strategies are more effective for managing shared resources, and techniques such as the use of mutex and actor mode...
2
artículo
Algorithm k-means is useful for grouping operations; however, when is applied to large amounts of data, its computational cost is high. This research propose an optimization of k-means algorithm by using parallelization techniques and synchronization, which is applied to image segmentation. In the results obtained, the parallel k-means algorithm, improvement 50% to the algorithm sequential k-means.
3
artículo
Publicado 2019
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New versions of the metaheuristic Multi-Particle Collision Algorithm (MPCA) are presented. In order to provide more effective candidate solutions for an optimization problem, the concept of opposition and reflection is introduced to improve the capacity to find a solution in the search space. Four different strategies to compute the reflected and opposite points are implemented. The performance of all implementations is evaluated over thirty objective functions with different complexities, using serial and parallel versions of the algorithms.
4
artículo
Publicado 2019
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New versions of the metaheuristic Multi-Particle Collision Algorithm (MPCA) are presented. In order to provide more effective candidate solutions for an optimization problem, the concept of opposition and reflection is introduced to improve the capacity to find a solution in the search space. Four different strategies to compute the reflected and opposite points are implemented. The performance of all implementations is evaluated over thirty objective functions with different complexities, using serial and parallel versions of the algorithms.
5
tesis de grado
Publicado 2025
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Esta investigación tiene como finalidad mejorar la calidad de los afirmados de los caminos vecinales de la ciudad de Candarave-Tacna, producidos en canteras mediante la “Estabilización de afirmados obtenidos de las canteras Arunta, Cerro Blanco, Hospicio, Miculla y Morán para conformación de Afirmados incrementando los valores referenciales de los parámetros de calidad propuestos por el manual de carreteras EG 2013”. Los estabilizadores seleccionados para el material son la Tierra de Chacra y el estabilizador Z con polímeros. La Tierra de Chacra desempeña un papel crucial al incrementar la proporción de finos en la mezcla de agregados, mientras que el estabilizador Z destaca por sus propiedades que optimizan la cohesión y compactación del material afirmado. Para la estabilización, se seleccionaron muestras de estudio provenientes de canteras con la mejor curva granulométr...
6
tesis de grado
Publicado 2023
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En los últimos años, la llegada de las cámaras de profundidad de bajo costo y sensores LiDAR ha incentivado a las industrias a invertir en estas tecnologías, lo cual incluye también mayor interés en investigaciones sobre procesamiento digital de señales. En esta ocasión, la reconstrucción tridimensional de túneles mineros utilizando LiDARs y un robot de auto-navegación ha sido propuesta como proyecto de investigación, y el presente trabajo forma parte en cargándose del alineamiento de nubes de puntos tridimensionales en tiempo real, un proceso que es más conocido como Registro de Nubes de Puntos. Existen muchos algoritmos que pueden resolver este problema, pero para el proyecto, el algoritmo solo necesita calcular la alineación fina y rígida. Al comparar los algoritmos de registro más avanzados, se encontró que el popular algoritmo ICP es el más adecuado para este caso...
7
tesis de grado
Publicado 2023
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En los últimos años, la llegada de las cámaras de profundidad de bajo costo y sensores LiDAR ha incentivado a las industrias a invertir en estas tecnologías, lo cual incluye también mayor interés en investigaciones sobre procesamiento digital de señales. En esta ocasión, la reconstrucción tridimensional de túneles mineros utilizando LiDARs y un robot de auto-navegación ha sido propuesta como proyecto de investigación, y el presente trabajo forma parte en cargándose del alineamiento de nubes de puntos tridimensionales en tiempo real, un proceso que es más conocido como Registro de Nubes de Puntos. Existen muchos algoritmos que pueden resolver este problema, pero para el proyecto, el algoritmo solo necesita calcular la alineación fina y rígida. Al comparar los algoritmos de registro más avanzados, se encontró que el popular algoritmo ICP es el más adecuado para este caso...
8
tesis de maestría
In recent years, the number of applications of model predictive control (MPC) is rapidly increasing due to the better control performance that it provides in comparison to traditional control methods. However, the main limitation of MPC is the computational e ort required for the online solution of an optimization problem. This shortcoming restricts the use of MPC for real-time control of dynamic systems with high sampling rates. This thesis aims to overcome this limitation by implementing high-performance MPC solvers for real-time control of fast systems. Hence, one of the objectives of this work is to take the advantage of the particular mathematical structures that MPC schemes exhibit and use parallel computing to improve the computational e ciency. Firstly, this thesis focuses on implementing e cient parallel solvers for linear MPC (LMPC) problems, which are described by block-struct...
9
tesis de maestría
In recent years, the number of applications of model predictive control (MPC) is rapidly increasing due to the better control performance that it provides in comparison to traditional control methods. However, the main limitation of MPC is the computational e ort required for the online solution of an optimization problem. This shortcoming restricts the use of MPC for real-time control of dynamic systems with high sampling rates. This thesis aims to overcome this limitation by implementing high-performance MPC solvers for real-time control of fast systems. Hence, one of the objectives of this work is to take the advantage of the particular mathematical structures that MPC schemes exhibit and use parallel computing to improve the computational e ciency. Firstly, this thesis focuses on implementing e cient parallel solvers for linear MPC (LMPC) problems, which are described by block-struct...
10
tesis de maestría
In recent years, the number of applications of model predictive control (MPC) is rapidly increasing due to the better control performance that it provides in comparison to traditional control methods. However, the main limitation of MPC is the computational e ort required for the online solution of an optimization problem. This shortcoming restricts the use of MPC for real-time control of dynamic systems with high sampling rates. This thesis aims to overcome this limitation by implementing high-performance MPC solvers for real-time control of fast systems. Hence, one of the objectives of this work is to take the advantage of the particular mathematical structures that MPC schemes exhibit and use parallel computing to improve the computational e ciency. Firstly, this thesis focuses on implementing e cient parallel solvers for linear MPC (LMPC) problems, which are described by block-struct...
11
artículo
Publicado 2021
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The present research work aims to determine the psychometric properties of the Rosenberg self-esteem scale; It is instrumental, involving a sample with 115 higher education students from Tacna between 18 to 55 years old. Item analysis, exploratory analysis, confirmatory analysis, bifactor, parallel analysis, reliability were performed and percentiles were determined. The results indicate that items 6 and 8 are not adequate for the negative dimension and this same dimension is not adequate according to the total variance explained; In the confirmatory analysis, the GFI adjustment index was not optimal, the parallel analysis using the least squares method recommends two dimensions and explains 59% of the explained variance, it was analyzed according to the adjustment indices for a bifactor that cannot be a one-dimensional scale.
12
artículo
Publicado 2025
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Para estimar el impacto de los terremotos en áreas urbanas, los investigadores convencionalmente utilizan modelos simplificados de estructuras urbanas para simulaciones. Sin embargo, los avances recientes en tecnología ahora permiten predicciones de respuesta ante terremotos más precisas a través de modelos de alta fidelidad y gemelos digitales. Los programas convencionales de generación de mallas pueden producir modelos 3D generales, pero no están optimizados para simulaciones urbanas a gran escala, donde el refinamiento de la malla cerca de las interfaces de los materiales es esencial. En este estudio, desarrollamos un método eficiente basado en la triangulación de Delaunay para simulaciones a escala urbana mediante la partición del modelo 3D en subdominios. El método propuesto utiliza de manera integrada la información del modelo de elevación digital y del modelo de veloci...
13
objeto de conferencia
The present work was supported by grant 234-2015-FONDECYT (Master Program) from Cienciactiva of the National Council for Science, Technology and Technological Innovation (CONCYTEC-PERU) and the Office Research of Universidad Nacional de Ingeniería (VRI - UNI).
14
tesis de grado
Publicado 2024
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El diseño del pit final y las fases de minado en una mina a cielo abierto son fundamentales para maximizar el valor del proyecto minero. Estos diseños se basan en envolventes económicas determinadas mediante algoritmos de optimización. Un sistema de rampas eficiente no solo mejora el beneficio económico del proyecto, sino que también permite recuperar todas las reservas disponibles minimizando el desmonte necesario para su extracción. El presente trabajo de suficiencia tiene como objetivo optimizar el ángulo de talud del pit final y las fases de minado utilizando un sistema de rampas en paralelo en una mina de cobre a cielo abierto. Este sistema permitirá: ▪ Optimizar ángulo global del talud en +2° en el pit final y fases de minado. ▪ Mayor beneficio económico del proyecto minero, un incremento 4% en los primeros 5 años y +1.2% como valor del proyecto ▪ Minimizar la ca...
15
artículo
Publicado 2014
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The daily electric demand in Peruvian National Interconnected System-SEIN- has very particular trend, seasonality and characteristics external effects, a situation that complicates the process of estimating the short-term forecast. The aim of this paper is to formulate and calculate ARIMA models with External Events Analysis to achieve efficient forecasts of electricity demand each day, at total level and broken down by areas of the SEIN. The methodology is based on treating each time series using appropriate statistical-mathematical transformations to achieve stability in variance as regular seasonal averages, parallel external events to try to reach an optimal predictive model ARIMA each area of the electrical system of Peru (Central, South and North) and for each day of the week. The results demonstrate the predictive efficiency. Taking as a quality indicator forecast the Mean Absolut...
16
artículo
Publicado 2014
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The daily electric demand in Peruvian National Interconnected System-SEIN- has very particular trend, seasonality and characteristics external effects, a situation that complicates the process of estimating the short-term forecast. The aim of this paper is to formulate and calculate ARIMA models with External Events Analysis to achieve efficient forecasts of electricity demand each day, at total level and broken down by areas of the SEIN. The methodology is based on treating each time series using appropriate statistical-mathematical transformations to achieve stability in variance as regular seasonal averages, parallel external events to try to reach an optimal predictive model ARIMA each area of the electrical system of Peru (Central, South and North) and for each day of the week. The results demonstrate the predictive efficiency. Taking as a quality indicator forecast the Mean Absolut...
17
tesis de grado
Publicado 2021
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Low Density Parity Check codes presents itself as the dominant FEC code in terms of performance, having the nearest performance to the Shannon limit and proving its usefulness in the increasing range of applications and standards that already used it. Low power devices are not except of this rapid development, where it emerges the necessity of decoders of low power without totally sacrificing performance or resource usage. The present work details the devolopment of a LDPC decoder compliant with the DVB-S2 standard for digital television, motivated for its already established use in uplink and downlink satellite applications and its great performance at large code lengths. This research presents the study of the min-sum algorithm and the design of the elements that conform the core decoder, including both functional units (variable and check nodes), memory blocks and routing network. In ...
18
artículo
Publicado 2025
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Objective: To design and implement a comprehensive platform for the real-time tracking, traceability, and monitoring of infusion pumps, incorporating a prototype of a peristaltic infusion pump, with the purpose of optimizing intravenous therapy monitoring and enhancing the efficiency of medical and nursing staff. Materials and methods: A prototype of a peristaltic infusion pump was developed using 3D printing, a method that enables the precise and customized creation of highly durable and functional components. The prototype integrates microcontrollers and sensors capable of detectinganomalies during drug administration, ensuring constant flow control. In parallel, a digital platformwas designed with access through a web interface, allowing continuous real-time monitoring ofthe pumps. This low-cost solution, developed in Bolivia, aims to facilitate implementation insettings where existin...
19
artículo
Publicado 2023
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Recurrent flooding in the mining works, deficiencies in the operation of pumps, unforeseen stoppages, and lack of water availability in the processes, affect the operations in the subway mine. The traditional solution adopted is to wait for maintenance times for its post evacuation, generating stoppages, consumption of water from the wells and inefficiency in the daily water demand. Therefore, this article presents a new approach that will expand the traditional methods by introducing a prediction model using probabilistic methods. This approach will allow the design of an optimal water distribution system, the efficient control in the maintenance and covering of the recirculated water demand inside the mine. Variables describing problems related to pump flow, pressure zoning and the type of pump distribution, either in series or in parallel in the pumping system, will be determined. Als...
20
tesis de maestría
Publicado 2025
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This research analyzes the relationship between public spending on law and order and the indicators of citizen security in the department of Loreto during the period 2013–2024. The study was conducted under a quantitative, non experimental, longitudinal, and correlational approach, using secondary data obtained from official sources such as the Ministry of Economy and Finance (MEF), the National Institute of Statistics and Informatics (INEI), and the National Police of Peru (PNP). Based on a total of 48 quarterly observations, descriptive statistical analysis and Spearman correlation tests were applied to test the proposed hypotheses. The results showed that, in general terms, there is a positive and significant relationship between public spending on security and citizen security levels in Loreto, which validates the general hypothesis. However, when examining the specific hypotheses,...
