302 research outputs found
Recovery of scientific data using Intelligent Distributed Data Warehouse
No full textA Retrieval System requires several components that define its functionality and behavior. In the case of a meta-search engine
for the retrieval of scientific data, a schema that defines the way to store such data is considered a necessary element for its
evolution. Unified profiles have been developed for the data storage of the entities involved in the scientific data management,
generated from the fact of publishing a scientific paper. Such profiles are considered the beginning of the generation of new
components for the meta-search engine that, using the proprietary information, can deliver information relevant for the user of
the tool. To this end, the use of an intelligent distributed data warehouse is proposed.Viloria, Amelec-52922525-9094-40f2-acd3-5424e90bb258-0Neira Rodado, Dionicio-0000-0003-0837-7083-0Pineda Lezama, Omar Bonerge-365a03a0-145e-4df5-9abe-f5ccf9d96612-
Estado del arte para un sistema de información para la valoración estratégica y financiera de las empresas que desean cooperar en un clúster, basada en el valor de shapley
No full textBahinipati et al. (2009) [16] proponen un plan de reparto de ingresos y
participantes de coaliciones en el mercado eléctrico de la Industria de
semiconductores. Como resultado de la investigación se concluyó que el beneficio
total derivado del mecanismo desarrollado, incrementaba con el número de
eslabones de la Cadena de Suministro.
Ahmadi y Hoseinpour (2011) [17] estudian la coordinación de decisiones de
publicidad en conjunto de una cadena de suministro conformada por Fabricante y
Minorista, utilizando distintos modelos propios de la Teoría de juegos y analizando
las posibles acciones de cada jugador dado ciertos escenarios.Castro, Lauren-will be generated-orcid-0000-0001-5201-5659-600Ramirez-Polo, Luis Eduardo-will be generated-orcid-0000-0002-1274-6593-600Neira Rodado, Dionicio-will be generated-orcid-0000-0003-0837-7083-60
A Sule’s Method initiated genetic algorithm for solving QAP formulation in facility layout design: A real world application
No full textThis paper considers the Quadratic Assignment Problem (QAP) as one of the most important issues in optimization. This NP-hard problem has been largely studied in the scientific literature, and exact and approximate (heuristic and meta-heuristic) approaches have been used mainly to optimize one or more objectives. However, most of these studies do not consider or are not tested in real applications. Hence, in this work, we propose the use of Sule’s Method and genetic algorithms, for a QAP (stated as a facility Layout Problem) in a real industry application in Colombia so that the total cost to move the required material between the facilities is minimized. As far as we know, this is the first work in which Sule’s Method and genetic algorithms are used simultaneously for this combinatorial optimization problem. Additionally the proposed approach was tested using well-known datasets from the literature in order to assure its efficiency.Niebles Atencio, Fabricio Andres-3b2c3fb0-7698-4da7-82e4-0ee7fe1aa630-0Neira Rodado, Dionicio-0000-0003-0837-7083-60
Multicriteria strategic approach for the selection of concrete suppliers in a construction company in Colombia
No full textWithin companies of the construction sector, the evaluation and selection of concrete suppliers, is considered a fundamental topic for the adequate construction of buildings, due to the impact it has, not only in the stability of the building but also in the productivity and the profitability. For an adequate selection, decision-makers must consider a series of criteria of different kind. However, as in different fields, due to the numerous criteria and alternatives that should be considered in the construction industry, the choice of an appropriate multicriteria decision-making approach has become a critical step in the selection of suppliers. Therefore, the objective of this research is to define the most adequate supplier of suitable concrete through the integration of powerful multicriteria decision-making methods. For this purpose, a fuzzy analytical hierarchy process (FAHP) is initially applied to define initial factor weights under uncertainty, followed, using the decision-making test and the evaluation laboratory (DEMATEL) to evaluate the interrelationships between elements of the hierarchy. Then, after combining FAHP and DEMATEL to calculate the final contributions of the factors including the interdependence, finally TOPSIS technique is used for the order of preference for the similarity with the ideal solution to evaluate and determine the best supplier.Restrepo, Jorge E.Neira Rodado, Dionicio-will be generated-orcid-0000-0003-0837-7083-600amelec, viloria-will be generated-orcid-0000-0003-2673-6350-
Frameworks applied in quality management - A systematic review
No full textEn este artículo se presenta una revisión sistemática de la literatura, realizado en las bases de datos PROQUEST, EBSCO, SCIENCE DIRECT, GOOGLE SCHOLAR, e IEEE Explorer, con el objetivo de identificar aplicaciones de Marcos o Frameworks, complementos a la Gestión de Calidad. La revisión contempla publicaciones en español e inglés, de los cuales se analizan distintos enfoques en cuanto a contribuciones, alcances geográficos, tipos de procesos, metodologías con las que fueron desarrollados, sectores de aplicación, herramientas de gestión de calidad utilizadas, y discusiones de cada uno de estos.This article presents a systematic review conducted in ProQuest, EBSCO, SCIENCE DIRECT, GOOGLE SCHOLAR, and IEEE Explorer, with the aim of identifying developments in Framework applied in Quality Management. The study includes articles written in Spanish and English and different approaches of contributions, countries, geographical scope, types of processes, methodologies, business sectors, models and tools of quality management are analyzed.Sanchez-Comas, Andres-0000-0002-4280-8070-600Neira Rodado, Dionicio-0000-0003-0837-7083-600Cabello Eras, Juan José-0000-0003-0949-0862-60
Determination of the most relevant features to improve the performance of RF classifier in human activity recognition
No full textThe impact that neurodegenerative diseases have in our society, have made human activity recognition (HAR) arise as a relevant field of study. The quality of life of people with such conditions, can be significantly improved with the outcomes of the projects within this area. The application of machine learning techniques on data from low level sensors such as accelerometers is the base of HAR. To improve the performance of these classifiers, it is necessary to carry out an adequate training process. To improve the training process, an analysis of the different features used in literature to tackle these problems was performed on datasets constructed with students performing 18 different activities of daily living. The outcome of the process shows that an adequate selection of features improves the performance of Random Forest from 94.6% to 97.2%. It was also found that 78 features explain 80% of the variability.Jiménez-Gómez, GeovannaNavarro-Escorcia, DanielaNeira Rodado, Dionicio-will be generated-orcid-0000-0003-0837-7083-600Cleland, Ian-will be generated-orcid-0000-0003-2368-7354-60
Solving flexible job-shop scheduling problem with transfer batches, setup times and multiple resources in apparel industry
No full textApparel industry is characterized by the presence of flexible job-shop systems that have been structured to manufacture a wide range of customized products. However, Flexible Job-shop Scheduling is really chal-lenging and even more complex when setup times, transfer batches and multiple resources are added. In this paper, we present an application of dispatching algorithm for the Flexible Job-shop Scheduling Problem (FJSP) presented in this industry. Days of delay, throughput, earlier date and monthly demand are used as rules of operation selection. A case study in apparel industry is shown to prove the validity of the proposed framework. Results evidence that this approach outperforms the company solution and other algorithms (PGDHS and HHS/LNS) upon reducing average tardiness by 61.1%, 2.63% and 1.77% respectively. The inclusion of throughput in the model resulted in low tardiness for orders with high speed to make money. Promising directions for future research are also proposed.Ortiz Barrios, Miguel Angel-0000-0001-6890-7547-600Neira Rodado, Dionicio-0000-0003-0837-7083-600Jimenez, Genett-c617c38d-cd1c-4e6d-86d7-f49de63ce897-0Hernandez, Hugo-1c951dd7-bc6e-43d4-a567-29764e887dc9-
Applying genetic algorithm for hybrid job shop scheduling in a cosmetic industry
No full textThis work considers the problem of scheduling a given set of jobs in a Flexible Job Shop in a cosmetic industry, located in Colombia, taking into account the natural complexity of the process and a lot of amount of variables involved, this problem is considered as NP-hard in the strong sense. Therefore, it is possible to find and optimal solution in a reasonable computational time for only small instances, which in general, does not reflect the industrial reality. For that reason, it is proposed the use of metaheuristics as an alternative approach in order to determine, with a low computational effort, the best assignment of jobs in order to minimize the number of tardy jobs. This optimization objective will allow to company to improve their customer service. A Genetic Algorithm (GA) is proposed. Computational experiments are carried out comparing the proposed approach versus instances of literature by Chiang and Fu. Results show the efficiency of our GA Algorithm.Macias, Edgar-3831fd3b-d7e7-40c5-8c18-081a1905e92b-0Niebles, Fabricio-9c5cd288-598a-41ab-9df1-2509a53f8852-0Jimenez, Genett-c617c38d-cd1c-4e6d-86d7-f49de63ce897-0Neira Rodado, Dionicio-0000-0003-0837-7083-60
Using fahp-vikor for operation selection in the flexible job-shop scheduling problem: A case study in textile industry
No full textScheduling of Flexible Job Shop Systems is a combinatorial problem which has been addressed by several heuristics and meta-heuristics. Nevertheless, the operation selection rules of both methods are limited to an ordered variant wherein priority-dispatching rules are not simultaneously deemed in the reported literature. Therefore, this paper presents the application of dispatching algorithm with operation selection based on Fuzzy Analytic Hierarchy Process (FAHP) and VIKOR methods while considering setup times and transfer batches. Dispatching, FAHP, and VIKOR algorithms are first defined. Second, a multi-criteria decision-making model is designed for operation prioritization. Then, FAHP is applied to calculate the criteria weights and overcome the uncertainty of human judgments. Afterwards, VIKOR is used to select the operation with the highest priority. A case study in the textile industry is shown to validate this approach. The results evidenced, compared to the company solution, a reduction of 61.05% in average delay.Ortiz Barrios, Miguel Angel-0000-0001-6890-7547-600Neira Rodado, Dionicio-0000-0003-0837-7083-600Jimenez Delgado, Genett Isabel-2bd05bd3-8791-4f5f-8a07-cb70fdaf4491-0Hernández Palma, Hugo Gaspar-073a0b04-83ad-4287-a129-d85df7cb9108-
Measuring the quality of management in education. Review article
No full textThe objective of this study is to perform a review and contextualize the existing definitions of educational quality from the managerial point of view. We will be presenting also the factors that have been considered to support managerial decision making within educational institutions. Relevant research related to the different models for measuring educational quality and the different factors that affect this quality are discussed. The existing methodological gap of the statistical processes, the theoretical evidences and the number of investigations in every level of education are identified. The results provide a framework for future research and can become the basis for the design and construction of multidimensional models for educational management quality measurement needs of educational institutions. The results evidence also the lack of a single criterion to build the indicators, as well as the fact that there is a strong of subjectivity in the measuring processes.Crissien Borrero, Tito José-will be generated-orcid-0000-0002-7459-7941-600Velásquez Rodríguez, Javier-will be generated-orcid-0000-0002-8257-6016-600Neira Rodado, Dionicio-will be generated-orcid-0000-0003-0837-7083-600Turizo Martínez, Luis Gabriel-will be generated-orcid-0000-0002-0830-7766-60
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