P. B. Costa, Italo Francyles Santos da Silva, P. C. S. Vieira, Robert Douglas Araújo Santos, M. G. Silva, Christyellen Souza Costa Lima, Daniel Lima Gomes Junior, Eliana Márcia Garros, I. F. S. Silva, Lucas P. A. Pinheiro
The billing process of an energy distributor in Brazil is connected to reading energy consumption logistics. An efficient, balanced and capacity enabled process has benefits with cost reducing and quality perception of the service provided. In capacitated clustering, the elements are associated with weights for construction of groups with limited capacities. This paper presents an approach to the capacitated clustering problem, applied to the consumer unit measurement groups organization in Brazil's energy distributors companies. The process of creating those measurement groups, in general, is carried out manually by expert analysts. The purpose of this problem modality is to create partitions that minimize the internal dispersion of the associated group. In this work, the RCMeans method, which is based on the K-Means technique applied to data groupings with the inclusion of the capacity constraint for the group definition, is presented. The obtained results show a comparison between the current situation and the result with the proposed method, under the cohesion analysis, separation, number of groups, silhouette index, and consumer units measurement mean time of the groups.
{"title":"RCMeans: A Recursive Capacitated Means for Districting Problem","authors":"P. B. Costa, Italo Francyles Santos da Silva, P. C. S. Vieira, Robert Douglas Araújo Santos, M. G. Silva, Christyellen Souza Costa Lima, Daniel Lima Gomes Junior, Eliana Márcia Garros, I. F. S. Silva, Lucas P. A. Pinheiro","doi":"10.26729/JADI.V4I1.2745","DOIUrl":"https://doi.org/10.26729/JADI.V4I1.2745","url":null,"abstract":"The billing process of an energy distributor in Brazil is connected to reading energy consumption logistics. An efficient, balanced and capacity enabled process has benefits with cost reducing and quality perception of the service provided. In capacitated clustering, the elements are associated with weights for construction of groups with limited capacities. This paper presents an approach to the capacitated clustering problem, applied to the consumer unit measurement groups organization in Brazil's energy distributors companies. The process of creating those measurement groups, in general, is carried out manually by expert analysts. The purpose of this problem modality is to create partitions that minimize the internal dispersion of the associated group. In this work, the RCMeans method, which is based on the K-Means technique applied to data groupings with the inclusion of the capacity constraint for the group definition, is presented. The obtained results show a comparison between the current situation and the result with the proposed method, under the cohesion analysis, separation, number of groups, silhouette index, and consumer units measurement mean time of the groups.","PeriodicalId":262708,"journal":{"name":"Journal on Advances in Theoretical and Applied Informatics","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121676451","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}
Walter do Espirito Santo, E. D. M. Ordonez, Admilson de Ribamar Lima Ribeiro
Este artigo apresenta uma pesquisa sobre os principais problemas de segurança que afetam os protocolos de comunicação no contexto da Internet das Coisas, a fim de identificar possíveis ameaças e vulnerabilidades. Os protocolos, para uma melhor organização, foram categorizados em camadas de acordo com o modelo de referência TCP / IP: (i) camada física e de ligação; (ii) camada de redes; (iii) camada de transporte; (iv) camada de aplicação. No final, um resumo é apresentado em forma tabular com os modos de segurança usados para cada protocolo utilizado.
{"title":"Uma revisão sistemática sobre a Segurança nos Protocolos de Comunicação para Internet das Coisas","authors":"Walter do Espirito Santo, E. D. M. Ordonez, Admilson de Ribamar Lima Ribeiro","doi":"10.26729/JADI.V4I1.2482","DOIUrl":"https://doi.org/10.26729/JADI.V4I1.2482","url":null,"abstract":"Este artigo apresenta uma pesquisa sobre os principais problemas de segurança que afetam os protocolos de comunicação no contexto da Internet das Coisas, a fim de identificar possíveis ameaças e vulnerabilidades. Os protocolos, para uma melhor organização, foram categorizados em camadas de acordo com o modelo de referência TCP / IP: (i) camada física e de ligação; (ii) camada de redes; (iii) camada de transporte; (iv) camada de aplicação. No final, um resumo é apresentado em forma tabular com os modos de segurança usados para cada protocolo utilizado.","PeriodicalId":262708,"journal":{"name":"Journal on Advances in Theoretical and Applied Informatics","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116529469","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}
Rosangela Melo, Vicente de Paulo F. Marques Sobrinho, I. J. M. Filho, F. Feliciano, P. Maciel
Cloud computing offer IT services to the users worldwide based on pay-as-you-go model. Furthermore, architectures and services that are provided by cloud computing system must have high availability, scalability, security and furthermore be fault tolerant. Plan these environments is not an easy task, it is necessary to ensure that undesirable situations or errors do not occur or can be minimized. The use of Sensitivity Analysis combined with the use of modeling hierarchy and the study of models for representing redundancy mechanisms arise in order to investigate the possible changes that these systems suffer and identify their shortcomings and propose improvements solutions for the planning of these systems. The use of redundancy techniques has been used to improve availability. In this work the redundancy mechanisms is a solution to improve the performance of environments in cloud computing.
{"title":"Redundancy Mechanisms applied to improve the performance in cloud computing environments","authors":"Rosangela Melo, Vicente de Paulo F. Marques Sobrinho, I. J. M. Filho, F. Feliciano, P. Maciel","doi":"10.26729/JADI.V4I1.2757","DOIUrl":"https://doi.org/10.26729/JADI.V4I1.2757","url":null,"abstract":"Cloud computing offer IT services to the users worldwide based on pay-as-you-go model. Furthermore, architectures and services that are provided by cloud computing system must have high availability, scalability, security and furthermore be fault tolerant. Plan these environments is not an easy task, it is necessary to ensure that undesirable situations or errors do not occur or can be minimized. The use of Sensitivity Analysis combined with the use of modeling hierarchy and the study of models for representing redundancy mechanisms arise in order to investigate the possible changes that these systems suffer and identify their shortcomings and propose improvements solutions for the planning of these systems. The use of redundancy techniques has been used to improve availability. In this work the redundancy mechanisms is a solution to improve the performance of environments in cloud computing.","PeriodicalId":262708,"journal":{"name":"Journal on Advances in Theoretical and Applied Informatics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129005902","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}
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