2019 XLV Latin American Computing Conference (CLEI)最新文献

CLEI 2019 Preface

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/clei47609.2019.9073969

引用次数: 0

The Regionalization of a University Project of educational robotics to Help Costa Rican Youth to Avoid Drug Consumption 一个大学教育机器人项目的区域化，以帮助哥斯达黎加青年避免毒品消费

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/CLEI47609.2019.235061

Pedro Fonseca Solano, Irene Hernández Ruiz

引用次数: 0

A Knowledge Visualization Course for the Era of Data Science 数据科学时代的知识可视化课程

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/CLEI47609.2019.235069

I. Silveira

引用次数: 0

A proposal for a reduced client workload model for querying encrypted databases in cloud 一个用于查询云中的加密数据库的减少客户机工作负载模型的建议

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/CLEI47609.2019.235081

V. Tello, B. Panda

{"title":"A proposal for a reduced client workload model for querying encrypted databases in cloud","authors":"V. Tello, B. Panda","doi":"10.1109/CLEI47609.2019.235081","DOIUrl":"https://doi.org/10.1109/CLEI47609.2019.235081","url":null,"abstract":"Cloud computing offers a considerable number of advantages to clients and organizations that use several capabilities to store sensitive data, interact with applications, or use technology infrastructure to perform daily activities. The development of new models in cloud computing brings with it a series of elements that must be considered by companies, particularly when the sensitive data needs to be protected. In this research, a model that uses a trusted third party (TTP) to enforce database security in the cloud is proposed. First, the TTP performs a partition process over the data by using an index from one of the attributes in the table, and the TTP sends to the cloud the records in encrypted format with an index. Second, the TTP analyzes the client query to retrieve a segment of the data from the cloud-based on the query conditions. The final result is submitted to the client in which a minimum workload is executed. Some simulations were performed to evaluate the efficiency of the model by using two partition techniques: Histogram based, and Mondrian or Bisection Tree-based. The strategy of the model is to process as much of the work at the TTP site and securely transmit the result.","PeriodicalId":216193,"journal":{"name":"2019 XLV Latin American Computing Conference (CLEI)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133479633","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

Extraction of a Software Product Line Using Conditional Compilation - An Exploratory Study 利用条件编译提取软件产品线的探索性研究

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/CLEI47609.2019.9089045

Patrícia Oliveira, Gustavo Vale, Paulo Afonso Parreira Júnior, H. Costa

引用次数: 0

Implementation of Project Based Learning: Lessons Learned 基于项目的学习的实施:经验教训

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/CLEI47609.2019.235066

Christian Quesada-López, Alexandra Martínez Porras

{"title":"Implementation of Project Based Learning: Lessons Learned","authors":"Christian Quesada-López, Alexandra Martínez Porras","doi":"10.1109/CLEI47609.2019.235066","DOIUrl":"https://doi.org/10.1109/CLEI47609.2019.235066","url":null,"abstract":"Project Based Learning (PBL) is a teaching and learning methodology where students develop projects under real conditions to acquire the knowledge and develop the skills required for their profession. In this article we discuss the lessons learned from two teachers who implemented different PBL approaches in three courses from the Bachelor in Computer and Informatics at the University of Costa Rica, during three semesters. We discuss the main considerations and decisions associated to project design elements and teaching practices. Among the main benefits identified by teachers when using PBL are the high motivation of students and the natural development of soft skills. Among the greatest challenges are (1) the design of learning assessment, considering technical aspects, soft skills, self- and peer- evaluations; (2) continuous feedback to students on their progress in the project and in team dynamics (and its consequent time investment); and (3) the necessary balance between designing a challenging and realistic project that enables the achievement of the course’s learning objectives. We recommend the use of agile methodologies such as Scrum, which align very well with PBL principles, as well as the use of hybrid PBL methodologies, which include complementary didactic strategies to achieve the learning objectives of the course.","PeriodicalId":216193,"journal":{"name":"2019 XLV Latin American Computing Conference (CLEI)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126043722","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: 7

CLEI 2019 Sponsors

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/clei47609.2019.9073974

引用次数: 0

ILP-based Energy Saving Routing for Software Defined Networking 基于ilp的软件定义网络节能路由

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/CLEI47609.2019.235109

Gerardo Riveros, Pedro Pablo Cespedes Sanchez, D. Pinto, H. Legal-Ayala

{"title":"ILP-based Energy Saving Routing for Software Defined Networking","authors":"Gerardo Riveros, Pedro Pablo Cespedes Sanchez, D. Pinto, H. Legal-Ayala","doi":"10.1109/CLEI47609.2019.235109","DOIUrl":"https://doi.org/10.1109/CLEI47609.2019.235109","url":null,"abstract":"Software defined networking (SDN) is an emerging technology based on the separation of the control plane and the data plane. This allows to obtain benefits, in comparison with traditional networks, in terms of network management, global monitoring-control, cost reduction, and in particular the energy saving by the strategic activation of devices. In this paper, we propose an approach that seeks to minimize the global energy consumption of the network by suspending inactive devices, such as chassis and line cards, as well as limiting the use of links in traffic sessions. For this purpose, we developed an Integer Linear Programming (ILP) model for the SDN routing problem in order to obtain the minimum energy consumption, subject to satisfy all traffic demands. The experimental results on two network topologies for a set of static traffic requests indicate that the proposed model is promising, saving up to 42% of the global energy consumption obtaining a better performance to the models proposed in the literature. On the other hand, the experimental results for incremental semi-dynamic traffic indicate that the performance of the optimization with re-routing improves the approach without re-routing when increasing the traffic in the network, but this improvement is not always perceptible. The approach without re-routing in terms of scalability is promising, by increasing the traffic load not generate interruptions to the traffic already attended and affect the quality of the service.","PeriodicalId":216193,"journal":{"name":"2019 XLV Latin American Computing Conference (CLEI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130204282","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

Using w-shingling to Group Similar Genes intoMetabuckets 利用w-shingling将相似基因分组到元桶中

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/CLEI47609.2019.235080

Jorge Cedeno-Femández, F. Torres-Rojas

引用次数: 0

A Framework for Improving Cold Start Time in Function-as-a-service (FaaS) 功能即服务(FaaS)中改进冷启动时间的框架

2019 XLV Latin American Computing Conference (CLEI) Pub Date : 2019-09-01 DOI: 10.1109/CLEI47609.2019.235112

Rogério Dias Moreira, P. S. Barreto

引用次数: 1