Research initiative, treatment action : RITA最新文献_第6页

Traveling Salesman Problem with Optional Bonus Collection, Pickup Time and Passengers 旅行推销员问题与可选的奖金收集，接送时间和乘客

Research initiative, treatment action : RITA Pub Date : 2020-01-15 DOI: 10.22456/2175-2745.93733

J. G. L. Filho, M. Goldbarg, E. Goldbarg, V. A. Petch

{"title":"Traveling Salesman Problem with Optional Bonus Collection, Pickup Time and Passengers","authors":"J. G. L. Filho, M. Goldbarg, E. Goldbarg, V. A. Petch","doi":"10.22456/2175-2745.93733","DOIUrl":"https://doi.org/10.22456/2175-2745.93733","url":null,"abstract":"This study introduces a variant of the Traveling Salesman Problem, named Traveling Salesman Problem with Optional Bonus Collection, Pickup Time and Passengers (PCVP-BoTc). It is a variant that incorporates elements of the Prize Collecting Traveling Salesman Problem and Ridesharing into the PCV. The objective is to optimize the revenue of the driver, which selectively defines which delivery or collection tasks to perform along the route. The economic effect of the collection is modeled by a bonus. The model can be applied to the solution of hybrid routing systems with route tasks and solidary transport. The driver, while performing the selected tasks, can give rides to persons who share route costs with him. Passengers are protected by restrictions concerning the maximum value they agree to pay for a ride and maximum travel duration. The activity of collecting the bonus in each locality demands a specific amount of time, affects the route duration, and is interconnected with the embarkment of passengers. Two mathematical formulations are presented for the problem and validated by a computational experiment using a solver. We propose four heuristic algorithms; three of them are hybrid metaheuristics. We tested the mathematical formulation implementations for 24 instances and the heuristic algorithms for 48.","PeriodicalId":82472,"journal":{"name":"Research initiative, treatment action : RITA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74677764","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}

引用次数: 1

A New Artificial Immune System Based on Continuous Learning for Pattern Recognition 一种基于持续学习的模式识别人工免疫系统

Research initiative, treatment action : RITA Pub Date : 2020-01-01 DOI: 10.22456/2175-2745.102061

S. F. Souza, F. Lima, F. R. Chavarette

{"title":"A New Artificial Immune System Based on Continuous Learning for Pattern Recognition","authors":"S. F. Souza, F. Lima, F. R. Chavarette","doi":"10.22456/2175-2745.102061","DOIUrl":"https://doi.org/10.22456/2175-2745.102061","url":null,"abstract":"This paper presents a novel approach for pattern recognition based on continuous training inspired by the biological immune system operation. The main objective of this paper is to present a method capable of continually learn, i.e., being able to address new types of patterns without the need to restart the training process (artificial immune system with incremental learning). It is a useful method for solving problems involving a permanent knowledge extraction, e.g., 3D facial expression recognition, whose quality of the solutions is strongly dependent on a continuous training process. In this context, two artificial immune algorithms are employed: (1) the negative selection algorithm, which is responsible for the pattern recognition process and (2) the clonal selection algorithm, which is responsible for the learning process. The main application of this method is in assisting in decision-making on problems related to pattern recognition process. To evaluate and validate the efficiency of this method, the system has been tested on handwritten character recognition, which is a classic problem in the literature. The results show efficiency, accuracy and robustness of the proposed methodology.","PeriodicalId":82472,"journal":{"name":"Research initiative, treatment action : RITA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85684094","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}

引用次数: 2

Dimensioning the relationship between availability and data center energy flow metrics 对可用性和数据中心能量流度量之间的关系进行量纲化

Research initiative, treatment action : RITA Pub Date : 2020-01-01 DOI: 10.22456/2175-2745.107176

Thiago Valentim Bezerra, Wenderson de Souza Leonardo, Gabriel Alves de Albuquerque Júnior, G. Callou

{"title":"Dimensioning the relationship between availability and data center energy flow metrics","authors":"Thiago Valentim Bezerra, Wenderson de Souza Leonardo, Gabriel Alves de Albuquerque Júnior, G. Callou","doi":"10.22456/2175-2745.107176","DOIUrl":"https://doi.org/10.22456/2175-2745.107176","url":null,"abstract":"The advancement of technology and the growing number of applications available to network users have increased the demand for services hosted in cloud environments. In 2020, more than 4 billion of people access these services through the Internet, a value 7% higher in comparison to the same period in 2019. To support the demand for such services, an environment that provides such conditions for applications available whenever needed has grown in importance. These environments are generally available from large data centers, which consume large amounts of electricity to provide such demand service capacity. In this context, this work proposes an integrated and dynamic strategy that demonstrates the impact of the availability on the energy consumption of the devices that compose the data center system architecture. In order to accomplish this, colored Petri net models were proposed for quantifying the cost, environmental impact and availability of the electric energy infrastructure ofdata centers. The models presented in this work are supported by the developed prototype. Two case studies illustrate the applicability of the proposed models and strategy. Significant results were obtained, showing an increase close to 100% in the system availability, with practically the same operational cost and environmental impact.","PeriodicalId":82472,"journal":{"name":"Research initiative, treatment action : RITA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91375733","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}

引用次数: 1

Creating Digital Musical Instruments with libmosaic-sound and Mosaicode 用libmosaic-sound和Mosaicode创建数字乐器

Research initiative, treatment action : RITA Pub Date : 2020-01-01 DOI: 10.22456/2175-2745.104342

L. Goncalves, F. Schiavoni

引用次数: 18

Comparison of Classical Computer Vision vs. Convolutional Neural Networks for Weed Mapping in Aerial Images 经典计算机视觉与卷积神经网络在航空图像杂草映射中的比较

Research initiative, treatment action : RITA Pub Date : 2020-01-01 DOI: 10.22456/2175-2745.97835

Paulo César Pereira Júnior, Alexandre Monteiro, Rafael Da Luz Ribeiro, A. Sobieranski, A. V. Wangenheim

引用次数: 2

Cloud infrastructure for HPC investment analysis 用于HPC的云基础设施投资分析

Research initiative, treatment action : RITA Pub Date : 2020-01-01 DOI: 10.22456/2175-2745.106794

Maicon Anca dos Santos, G. H. Cavalheiro

引用次数: 2

SafeFollowing: A collaborative model for public security agents to assist people with disabilities and the elderly SafeFollowing:公共安全人员协助残疾人和老年人的协作模式

Research initiative, treatment action : RITA Pub Date : 2019-11-30 DOI: 10.22456/2175-2745.92117

C. M. Matos, V. Matter, F. Viegas, M. G. Martins, João Tavares, J. Barbosa

{"title":"SafeFollowing: A collaborative model for public security agents to assist people with disabilities and the elderly","authors":"C. M. Matos, V. Matter, F. Viegas, M. G. Martins, João Tavares, J. Barbosa","doi":"10.22456/2175-2745.92117","DOIUrl":"https://doi.org/10.22456/2175-2745.92117","url":null,"abstract":"In the last survey about the Brazilian population conducted by IBGE, more than 45.6 million of Brazilians declared that they have some kind of disability. Besides that, the same survey revealed that the number of elderly people has been increasing over the years and at that time it already represented 12.1 % of the total. In this scenario, public policies that can efficiently ensure the rights of this share of the population became even more necessary. In the same manner, with the popularization of mobile devices, opportunities to develop new solutions are arising, offering more independence and quality of life to them. Ubiquitous accessibility support solutions have been proposed, such as the MASC model, which resorts to the concept of smart assistive city; and more recently the AccompCare, which predicts the monitoring of people with disabilities and the elderly. This article proposes the SafeFollowing, a model that enables integrated and collaborative acting of the community aiming to assist people with some kind of disability or elderly people. The SafeFollowing predicts the use of police cars mapping, in order to provide a specific follow-up in adverse daily situations. The validation of the model is also presented in the article, which was performed through experiments in real test scenarios.","PeriodicalId":82472,"journal":{"name":"Research initiative, treatment action : RITA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74714686","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}

引用次数: 0

Vulnerability Identification on GNU/Linux Operating Systems through Case-Based Reasoning 基于案例推理的GNU/Linux操作系统漏洞识别

Research initiative, treatment action : RITA Pub Date : 2019-11-30 DOI: 10.22456/2175-2745.82079

D. Santos, J. Nobre

{"title":"Vulnerability Identification on GNU/Linux Operating Systems through Case-Based Reasoning","authors":"D. Santos, J. Nobre","doi":"10.22456/2175-2745.82079","DOIUrl":"https://doi.org/10.22456/2175-2745.82079","url":null,"abstract":"Operating system security has been steadily evolving over the years. Several mechanisms, softwares and guides of best practices of configuration have been developed to contribute with the security of such systems. The process that makes an operating system safer by considering the default level obtained at the installation is known as hardening. Experience and technical knowledge are important attributes for the professional performing this process. In this context, automated rule-based tools are often used to assist professionals with little experience in vulnerability identification activities. However, the use of rules establishes a dependency on developers for the development of new rules as well as to keep them updated. Failure to update rules can significantly compromise the integrity of vulnerability identification results. In this paper, the Case-Based Reasoning (CBR) technique is used to improve tools that assist inexperienced professionals in conducting vulnerability identification activities. The purpose of using CBR is to make inexperienced professionals obtain similar results as experienced professionals. In addition, the dependence on rule developers is diminished. A prototype was developed considering the GNU/Linux system in order to carry out an experimental evaluation. This evaluation demonstrated that the application of CBR improves the performance of inexperienced professionals in terms of the number of identified vulnerabilities.","PeriodicalId":82472,"journal":{"name":"Research initiative, treatment action : RITA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73418034","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}

引用次数: 0

A Model for the Diffusive Filling-In Algorithm Operating in Spike Mode 尖峰模式下的扩散填充算法模型

Research initiative, treatment action : RITA Pub Date : 2019-11-30 DOI: 10.22456/2175-2745.86439

Genildo Nonato Santos, J. Gomes

{"title":"A Model for the Diffusive Filling-In Algorithm Operating in Spike Mode","authors":"Genildo Nonato Santos, J. Gomes","doi":"10.22456/2175-2745.86439","DOIUrl":"https://doi.org/10.22456/2175-2745.86439","url":null,"abstract":"To run cortical circuit simulations in spike mode, i.e. taking into account the neural representation of information in terms of sequences of electrical pulses (also known as spikes), the use of customized hardware, which is specific for this purpose, is recommended. Simulations using more traditional hardware can be prohibitive. In this context, theoretical predictions are important for customized hardware design. For example, theoretical predictions lead to an adequate neuron model choice. To make such theoretical predictions, the cortical circuit simulations are carried out in amplitude mode. Differently from the spike mode, in amplitude mode information is represented by sequences of scalar values that describe neural input and output spike rates. In this paper, it was proposed amplitude and spike mode simulations of a cortical algorithm, namely the diffusive filling-in algorithm, to investigate whether predictions based on the amplitude-mode results approximate well the behavior of the customized hardware (spike mode results). The diffusive filling-in algorithm was chosen because it is simple enough for spike-mode simulation in a conventional computer, but the proposed amplitude-mode prediction method is the same for more complex algorithms or circuits. We provide a highly realistic comparison between amplitude-mode and spike-mode in the diffusive filling-in case, which suggests that the amplitude mode is reliable for theoretical predictions useful for customized hardware design for cortical circuit simulation. The goal of this paper is not to bring closure to these discussions but to suggest a way of avoiding possible issues that could compromise the success of the customized device design.","PeriodicalId":82472,"journal":{"name":"Research initiative, treatment action : RITA","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80635737","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}

引用次数: 0

Virtual Reality-based Training for the Motor Developmentof People With Intellectual and Multiple Disabilities 基于虚拟现实的智障及多重残障人士运动发展训练

Research initiative, treatment action : RITA Pub Date : 2019-11-30 DOI: 10.22456/2175-2745.86478

Rian Dutra da Cunha, Frâncila Weidt Neiva, Rodrigo L. S. Silva

引用次数: 1