Pub Date : 2022-11-08DOI: 10.17533/udea.redin.20221101
L. Velázquez-Araque, J. Chica
Especially in small communities, little attention is paid to the hydraulic characteristics of wastewater treatment systems. Motivated by this problem, and using the ANSYS fluid dynamics software, the hydrodynamic evaluation of the residual water flow in a rural plant maturation pond was carried out. For the stationary modeling of the velocity and turbulence fields, the standard k-ε model was used; and for transient modeling of virtual tracer transport, the species transport model without chemical reaction was used. Subsequently, the analysis of the distribution of retention times was carried out, in order to obtain the flow patterns that govern the hydrodynamics of the pond. The results revealed the presence of hydraulic short circuits, stagnant zones, and recirculations, due to design deficiencies and operating conditions over the years. Given this situation, and by bibliographic recommendation, new modified geometries were proposed with longitudinal and transverse baffles at 70 and 90% in relation to the width and length of the pond. As a result, the hydraulic characteristics improved notably in all cases; however, the models configured at 90% achieved higher efficiency.
{"title":"Analysis and hydraulic improvement of a maturation pond using Computational Fluid Dynamics","authors":"L. Velázquez-Araque, J. Chica","doi":"10.17533/udea.redin.20221101","DOIUrl":"https://doi.org/10.17533/udea.redin.20221101","url":null,"abstract":"Especially in small communities, little attention is paid to the hydraulic characteristics of wastewater treatment systems. Motivated by this problem, and using the ANSYS fluid dynamics software, the hydrodynamic evaluation of the residual water flow in a rural plant maturation pond was carried out. For the stationary modeling of the velocity and turbulence fields, the standard k-ε model was used; and for transient modeling of virtual tracer transport, the species transport model without chemical reaction was used. Subsequently, the analysis of the distribution of retention times was carried out, in order to obtain the flow patterns that govern the hydrodynamics of the pond. The results revealed the presence of hydraulic short circuits, stagnant zones, and recirculations, due to design deficiencies and operating conditions over the years. Given this situation, and by bibliographic recommendation, new modified geometries were proposed with longitudinal and transverse baffles at 70 and 90% in relation to the width and length of the pond. As a result, the hydraulic characteristics improved notably in all cases; however, the models configured at 90% achieved higher efficiency.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":"124 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74540437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-01DOI: 10.19053/01211129.v31.n62.2022.14778
M. Monsalve-Arias, Ó. Higuera-Cobos, H. Ageorges, F. Vargas-Galvis, M. López-Gómez
In this work, bioactive glass coatings were fabricated by plasma thermal spraying and oxyacetylene flame techniques from 2 different bioactive glass powders with 0 and 2% molar MgO. The metal substrates used were Ti6Al4V alloy and AISI 316L steel. The tribological behavior of the coatings was evaluated by the ball-on-disc method in the presence of simulated biological fluid (SBF), and the results were correlated with their mechanical behavior, obtaining values of hardness (between 4.84 and 5.18 GPa) and fracture toughness (between 5.25 and 6.62 MPa.m1/2). The results show that fracture toughness has a slightly higher effect than hardness on the wear behavior of the coatings under study.
{"title":"Wear Behavior of Bioactive Glass Coatings Deposited by Thermal Spraying","authors":"M. Monsalve-Arias, Ó. Higuera-Cobos, H. Ageorges, F. Vargas-Galvis, M. López-Gómez","doi":"10.19053/01211129.v31.n62.2022.14778","DOIUrl":"https://doi.org/10.19053/01211129.v31.n62.2022.14778","url":null,"abstract":"In this work, bioactive glass coatings were fabricated by plasma thermal spraying and oxyacetylene flame techniques from 2 different bioactive glass powders with 0 and 2% molar MgO. The metal substrates used were Ti6Al4V alloy and AISI 316L steel. The tribological behavior of the coatings was evaluated by the ball-on-disc method in the presence of simulated biological fluid (SBF), and the results were correlated with their mechanical behavior, obtaining values of hardness (between 4.84 and 5.18 GPa) and fracture toughness (between 5.25 and 6.62 MPa.m1/2). The results show that fracture toughness has a slightly higher effect than hardness on the wear behavior of the coatings under study.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46304437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.17533/udea.redin.20221099
F. Rahal, F. Baba-Hamed
The identification of clay soils is of great importance for the construction industry. Indeed, this type of soil presents an economic interest related to the exploitation of its clayey materials. Furthermore, the assessment of the potential for differential ground movement through the dryness of the soils and their rehydration is also an important issue to identify in order to reduce the swelling-shrinking hazard. The region of Mers El Kébir located in northwest Algeria, is at risk of this phenomenon because it is known for its marly clay compositions. Mapping this type of soil using satellite imagery offers an alternative to the engineering practice of establishing soil mineralogy, based on X-ray diffraction analysis, which is expensive and time-consuming. The objective of this research is to use ASTER satellite images to map different clay minerals. This analysis is based on remote sensing of spectral signatures corresponding to illite, kaolinite, and montmorillonite.The study of satellite images of the Mers El Kébir region validates the methodology developed, which could be used to help in the development and planning of new infrastructures adapted to the different types of soil.
粘性土的鉴定对建筑行业具有重要意义。事实上，这种类型的土壤表现出与开发其粘土材料有关的经济利益。此外，通过土壤的干燥及其再水化来评估潜在的差异地面运动也是一个重要的问题，以减少膨胀收缩的危险。位于阿尔及利亚西北部的Mers El ksambir地区面临这种现象的危险，因为它以其泥质粘土成分而闻名。利用卫星图像绘制这种类型的土壤，为基于x射线衍射分析建立土壤矿物学的工程实践提供了一种替代方法，这种方法既昂贵又耗时。本研究的目的是利用ASTER卫星图像绘制不同的粘土矿物。这一分析是基于遥感光谱特征对应的伊利石，高岭石和蒙脱石。对Mers El ksambir地区卫星图像的研究证实了所开发的方法，可用于帮助发展和规划适应不同土壤类型的新基础设施。
{"title":"Mapping of clay soils by remote sensing in the area of Mers El Kébir, Algeria","authors":"F. Rahal, F. Baba-Hamed","doi":"10.17533/udea.redin.20221099","DOIUrl":"https://doi.org/10.17533/udea.redin.20221099","url":null,"abstract":"The identification of clay soils is of great importance for the construction industry. Indeed, this type of soil presents an economic interest related to the exploitation of its clayey materials. Furthermore, the assessment of the potential for differential ground movement through the dryness of the soils and their rehydration is also an important issue to identify in order to reduce the swelling-shrinking hazard. The region of Mers El Kébir located in northwest Algeria, is at risk of this phenomenon because it is known for its marly clay compositions. Mapping this type of soil using satellite imagery offers an alternative to the engineering practice of establishing soil mineralogy, based on X-ray diffraction analysis, which is expensive and time-consuming. The objective of this research is to use ASTER satellite images to map different clay minerals. This analysis is based on remote sensing of spectral signatures corresponding to illite, kaolinite, and montmorillonite.The study of satellite images of the Mers El Kébir region validates the methodology developed, which could be used to help in the development and planning of new infrastructures adapted to the different types of soil.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":"87 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77278158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-18DOI: 10.17533/udea.redin.20221098
Perla Beatriz Fernández-Oliva, Alejandro Miguel Güemes-Esperón, Martha Dunia Delgado-Dapena, A. Rosete
Software tests are fundamental in the reliability and quality of systems, contributing to their positioning in the market. Generating test data is a critical task, as exhaustive testing is costly in time and effort. An adequate design of the test cases, which contemplates a selection of adequate values, can detect a high number of defects. The effectiveness of the test cases is measured according to the number of errors they managed to detect. However, the proposals that address these issues with the use of heuristic algorithms focus on the reduction of generation time and different coverage criteria. This article presents a search-based optimization model for the generation of unit test suites that integrates different test case design techniques considering the significance of the values generated in the detection of errors. The significance of the paths is also taken into account, with the aim of obtaining test cases with greater potential to detect errors. The optimization model uses heuristic algorithms that maximize the coverage of the paths. The results of the experimentation are presented, which show that the proposal presented generates test suits with a high capacity to detect errors. For this, the effectiveness of the generated test suits to detect errors in the mutated code was evaluated.
{"title":"Search-based reduction model for unit testing","authors":"Perla Beatriz Fernández-Oliva, Alejandro Miguel Güemes-Esperón, Martha Dunia Delgado-Dapena, A. Rosete","doi":"10.17533/udea.redin.20221098","DOIUrl":"https://doi.org/10.17533/udea.redin.20221098","url":null,"abstract":"Software tests are fundamental in the reliability and quality of systems, contributing to their positioning in the market. Generating test data is a critical task, as exhaustive testing is costly in time and effort. An adequate design of the test cases, which contemplates a selection of adequate values, can detect a high number of defects. The effectiveness of the test cases is measured according to the number of errors they managed to detect. However, the proposals that address these issues with the use of heuristic algorithms focus on the reduction of generation time and different coverage criteria.\u0000This article presents a search-based optimization model for the generation of unit test suites that integrates different test case design techniques considering the significance of the values generated in the detection of errors. The significance of the paths is also taken into account, with the aim of obtaining test cases with greater potential to detect errors. The optimization model uses heuristic algorithms that maximize the coverage of the paths. The results of the experimentation are presented, which show that the proposal presented generates test suits with a high capacity to detect errors. For this, the effectiveness of the generated test suits to detect errors in the mutated code was evaluated.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":"43 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81569645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-12DOI: 10.17533/udea.redin.20221097
Angie Tatiana Ortega-Ramírez, Alfonso Rodríguez, Diego Fernando Marín-Maldonado, Lina Hernández, Charles Espinosa, G. Binkhorst, J. Keith
Mercury concentration measurements were compiled from 72 sites located throughout seven departments of Colombia using field information gathered from 2016–2021 by Pure Earth, an international non-profit organization, and secondary information from previously conducted studies. These measurements and other data such as type of contaminated resource (water, soil), resource use (fishing, agricultural, residential, and industrial), estimated at-risk population, and permissible contamination limits were entered into Pure Earth’s Toxic Site Identification Program (TSIP) database. Using information from the TSIP database, the Blacksmith Index, a contaminated site intervention prioritization index, was calculated for all 72 sites. After applying exclusion criteria to the sites for this study, the results show that approximately 55,095 people are affected by mercury contamination in 44 sites. Of these study sites, the site with the highest Blacksmith Index value and therefore, the highest health risk due to mercury contamination, is La Bocana in the department of Valle del Cauca.
{"title":"Rapid assessment of mercury-contaminated sites through the Toxic Site Identification Program (TSIP). Colombia","authors":"Angie Tatiana Ortega-Ramírez, Alfonso Rodríguez, Diego Fernando Marín-Maldonado, Lina Hernández, Charles Espinosa, G. Binkhorst, J. Keith","doi":"10.17533/udea.redin.20221097","DOIUrl":"https://doi.org/10.17533/udea.redin.20221097","url":null,"abstract":"Mercury concentration measurements were compiled from 72 sites located throughout seven departments of Colombia using field information gathered from 2016–2021 by Pure Earth, an international non-profit organization, and secondary information from previously conducted studies. These measurements and other data such as type of contaminated resource (water, soil), resource use (fishing, agricultural, residential, and industrial), estimated at-risk population, and permissible contamination limits were entered into Pure Earth’s Toxic Site Identification Program (TSIP) database. Using information from the TSIP database, the Blacksmith Index, a contaminated site intervention prioritization index, was calculated for all 72 sites. After applying exclusion criteria to the sites for this study, the results show that approximately 55,095 people are affected by mercury contamination in 44 sites. Of these study sites, the site with the highest Blacksmith Index value and therefore, the highest health risk due to mercury contamination, is La Bocana in the department of Valle del Cauca.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":"71 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78365874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-05DOI: 10.17533/udea.redin.20220994
S. P. Muñoz Pérez, José Giancarlo Aguilar Morante, I. D. Díaz Flores
The use of different marine residues found in the great biodiversity of the Peruvian coast, such as crushed mollusk shells or fan shells, can be used as mechanical stabilizers for clay soils due to a change in granulometry. In this article, we reviewed 74 research studies indexed in different databases such as Scopus, Scielo, Ebsco, Proquest, Springer Link, and ScienceDirect, whose publication has not exceeded seven years, with the objective of carrying out a systematic review of the use, effect and influence of marine debris as soil stabilizers. For this purpose, the analyses of the mechanical and also physical properties of such mixtures in different marine debris were reviewed compared to the various types of stabilizers currently used. These evaluated results indicate, that the Pacific razor clam shell offers a lower bearing capacity compared to the fan shell when stabilizing clayey soil. However, the shredded output of both types of marine debris can meet the need for clay subgrade stabilization. Based on the review, it was determined that the addition of different types of shredded marine debris reduces water absorption by capillarity, increasing the resistance and bearing capacity of the soil.
{"title":"Subgrade soil stabilization using marine debris: A literature review","authors":"S. P. Muñoz Pérez, José Giancarlo Aguilar Morante, I. D. Díaz Flores","doi":"10.17533/udea.redin.20220994","DOIUrl":"https://doi.org/10.17533/udea.redin.20220994","url":null,"abstract":"The use of different marine residues found in the great biodiversity of the Peruvian coast, such as crushed mollusk shells or fan shells, can be used as mechanical stabilizers for clay soils due to a change in granulometry. In this article, we reviewed 74 research studies indexed in different databases such as Scopus, Scielo, Ebsco, Proquest, Springer Link, and ScienceDirect, whose publication has not exceeded seven years, with the objective of carrying out a systematic review of the use, effect and influence of marine debris as soil stabilizers. For this purpose, the analyses of the mechanical and also physical properties of such mixtures in different marine debris were reviewed compared to the various types of stabilizers currently used. These evaluated results indicate, that the Pacific razor clam shell offers a lower bearing capacity compared to the fan shell when stabilizing clayey soil. However, the shredded output of both types of marine debris can meet the need for clay subgrade stabilization. Based on the review, it was determined that the addition of different types of shredded marine debris reduces water absorption by capillarity, increasing the resistance and bearing capacity of the soil.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":"2 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80897017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-04DOI: 10.19053/01211129.v31.n62.2022.14766
Carlos-Eduardo Orozco-Garcés, C. Pardo-Calvache, Elizabeth Suescún-Monsalve
This article presents a model to complement the evaluation of DevOps in software companies. It was designed by harmonizing the elements of the DevOps process identified through a systematic mapping of the literature and aimed to know the state of the art of methodological solutions and tools to evaluate DevOps in the industry. The process elements were identified, compared, and integrated into a common process structure that was used to establish a total of 11 metrics using the Goal-Question-Metric approach. The model was evaluated by a focus group of expert DevOps professionals. They determined that the model is clear, easy to apply, and provides valuable information to companies to improve their DevOps practices.
{"title":"Metrics Model to Complement the Evaluation of DevOps in Software Companies","authors":"Carlos-Eduardo Orozco-Garcés, C. Pardo-Calvache, Elizabeth Suescún-Monsalve","doi":"10.19053/01211129.v31.n62.2022.14766","DOIUrl":"https://doi.org/10.19053/01211129.v31.n62.2022.14766","url":null,"abstract":"This article presents a model to complement the evaluation of DevOps in software companies. It was designed by harmonizing the elements of the DevOps process identified through a systematic mapping of the literature and aimed to know the state of the art of methodological solutions and tools to evaluate DevOps in the industry. The process elements were identified, compared, and integrated into a common process structure that was used to establish a total of 11 metrics using the Goal-Question-Metric approach. The model was evaluated by a focus group of expert DevOps professionals. They determined that the model is clear, easy to apply, and provides valuable information to companies to improve their DevOps practices.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42185926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Currently on the Internet there are many threats that threaten the security of the information of users who daily access this network using different devices that connect from their homes or organizations that in many cases do not have security controls enough and end up exposing themselves to all those threats that grow over time. That is why this article aims to propose the validation of a cybersecurity framework that allows mitigating and reducing risks to increase security levels through the implementation of controls for homes and organizations using emerging technologies such as: IoT, Blockchain and Deep Learning. The foregoing was carried out with the methodological approach of action research starting from the improvement of the process in search of transformation, thus obtaining as results the integration of the aforementioned methodologies for the detection of possible malicious hosts within an internal network through an intelligent analysis of the traffic that passes through the same network in order to intelligently generate rules in intrusion detection systems (IDS) in an automated way and that these rules can in turn be distributed through a secure channel using the Blockchain technology, to finally guarantee the integrity of said rules and that also allows maintaining the immutability and synchronization of the same information with all the devices connected to the framework.
{"title":"Validation of Cybersecurity Framework for Threat Mitigation","authors":"Yeison-Isaac Llanten-Lucio, Siler Amador-Donado, Katerine Marceles-Villalba","doi":"10.19053/01211129.v31.n62.2022.14840","DOIUrl":"https://doi.org/10.19053/01211129.v31.n62.2022.14840","url":null,"abstract":"Currently on the Internet there are many threats that threaten the security of the information of users who daily access this network using different devices that connect from their homes or organizations that in many cases do not have security controls enough and end up exposing themselves to all those threats that grow over time. That is why this article aims to propose the validation of a cybersecurity framework that allows mitigating and reducing risks to increase security levels through the implementation of controls for homes and organizations using emerging technologies such as: IoT, Blockchain and Deep Learning. The foregoing was carried out with the methodological approach of action research starting from the improvement of the process in search of transformation, thus obtaining as results the integration of the aforementioned methodologies for the detection of possible malicious hosts within an internal network through an intelligent analysis of the traffic that passes through the same network in order to intelligently generate rules in intrusion detection systems (IDS) in an automated way and that these rules can in turn be distributed through a secure channel using the Blockchain technology, to finally guarantee the integrity of said rules and that also allows maintaining the immutability and synchronization of the same information with all the devices connected to the framework.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48776571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-30DOI: 10.19053/01211129.v31.n61.2022.14841
Andrés-Felipe Cruz-Eraso, C. González-Serrano
Vocational guidance is part of psychosocial development and is understood as a method that helps to determine the most appropriate profession according to the aptitudes and abilities of the student. The processes of vocational guidance are dynamic and focus on educating and favoring the decision-making process in the professional choice for a learning pathway throughout the student's life, which will benefit society in the long run. Most of the current solutions, both theoretical and applied, from Europe and North America differ when used in the Colombian context, mainly for adults, since the process of classifying professions is not accurate nor precise. In addition, there are various educational projects and evaluation systems in secondary education level institutions. At this level, the students have a changing vocational choice which implies taking into account specific characteristics of the context, also, the student profile vocational guidance determinants. The objective of this article is to describe the adaptive model of occupational classification integrated into the Intelligent Web Platform used in educational institutions in the Department of Cauca. The use of the CRISP-DM methodology allowed finding the Naive Bayes and Deep learning algorithms as those with the best performance in the classification of professions.
{"title":"Adaptive Model of Classification of Professions in Vocational Guidance Systems","authors":"Andrés-Felipe Cruz-Eraso, C. González-Serrano","doi":"10.19053/01211129.v31.n61.2022.14841","DOIUrl":"https://doi.org/10.19053/01211129.v31.n61.2022.14841","url":null,"abstract":"Vocational guidance is part of psychosocial development and is understood as a method that helps to determine the most appropriate profession according to the aptitudes and abilities of the student. The processes of vocational guidance are dynamic and focus on educating and favoring the decision-making process in the professional choice for a learning pathway throughout the student's life, which will benefit society in the long run. Most of the current solutions, both theoretical and applied, from Europe and North America differ when used in the Colombian context, mainly for adults, since the process of classifying professions is not accurate nor precise. In addition, there are various educational projects and evaluation systems in secondary education level institutions. At this level, the students have a changing vocational choice which implies taking into account specific characteristics of the context, also, the student profile vocational guidance determinants. The objective of this article is to describe the adaptive model of occupational classification integrated into the Intelligent Web Platform used in educational institutions in the Department of Cauca. The use of the CRISP-DM methodology allowed finding the Naive Bayes and Deep learning algorithms as those with the best performance in the classification of professions.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49491187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-28DOI: 10.19053/01211129.v31.n61.2022.14807
Vicko Quizza-Hernández, Juan-Camilo Arango-Colorado, W. Campo-Muñoz
The services supported by data networks have become widespread, so the architectures of the new data networks are service-oriented. They are endowed with intelligence, flexibility, and programmability. The preceding is with the aim of providing acceptability by users. Thus, this paper presents the construction of a video transmission scenario over a software-defined network (SDN, Software-Defined Networking) using free software and modifying its behavior with background traffic, on which the Quality of Experience (QoE) is estimated. Subjective and objective metrics were used for the QoE estimation. For the first one, the Mean Opinion Score (MOS) was used, while the second one was studied with the Full Reference Image Quality Assessment (FR-IQA). Finally, a correlation between the two types of metrics was proposed.
{"title":"Construction of a Video Transmission Scenario in Software-Defined Networks for QoE Estimation","authors":"Vicko Quizza-Hernández, Juan-Camilo Arango-Colorado, W. Campo-Muñoz","doi":"10.19053/01211129.v31.n61.2022.14807","DOIUrl":"https://doi.org/10.19053/01211129.v31.n61.2022.14807","url":null,"abstract":"The services supported by data networks have become widespread, so the architectures of the new data networks are service-oriented. They are endowed with intelligence, flexibility, and programmability. The preceding is with the aim of providing acceptability by users. Thus, this paper presents the construction of a video transmission scenario over a software-defined network (SDN, Software-Defined Networking) using free software and modifying its behavior with background traffic, on which the Quality of Experience (QoE) is estimated. Subjective and objective metrics were used for the QoE estimation. For the first one, the Mean Opinion Score (MOS) was used, while the second one was studied with the Full Reference Image Quality Assessment (FR-IQA). Finally, a correlation between the two types of metrics was proposed.","PeriodicalId":42846,"journal":{"name":"Revista Facultad de Ingenieria, Universidad Pedagogica y Tecnologica de Colombia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44126682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：