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2021 XLVII Latin American Computing Conference (CLEI)最新文献

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Diagnosis for the adoption of e-commerce platforms in micro and small enterprises in rural areas: Case study of the region of Río Cuarto, Alajuela 农村小微企业采用电子商务平台的诊断——以Río阿拉胡埃拉州Cuarto地区为例
Pub Date : 2021-10-25 DOI: 10.1109/CLEI53233.2021.9640057
Michael Barquero Salazar, Gabriela Marín-Raventós
The implementation of electronic commerce as a new way of commercialization is not only a business decision, since not all companies, nor all consumers in a region are technologically prepared to adopt electronic commerce. To implement this type of trade, companies should carry out a diagnostic study, both to know if they have the technological resources internally, and to diagnose if their potential clients also have such preparation. From this perspective, this work seeks to design an instrument that allows diagnosing the technological preparation and acceptance of micro and small businesses, and their potential consumers in rural areas. For the elaboration of the instruments, an iterative process was used, composed of three iterations of design and evaluation. Academic experts with extensive experience in instrument design carried out the first evaluation; the second iteration was evaluated in a pilot field study where 6 companies and 10 consumers from regions such as Pococí and San Carlos participated. Finally, the third iteration was developed with a case study in the canton of Río Cuarto de Alajuela, 29 companies and 261 consumers from the region participated in this study. The diagnosis highlights that most of these companies state that they are not technologically prepared to implement e-commerce, while most of the participating consumers indicate that they do feel technologically prepared to use these platforms.
实施电子商务作为一种新的商业化方式不仅仅是一个商业决策,因为不是所有的公司,也不是一个地区的所有消费者在技术上都准备好采用电子商务。为了实施这种类型的贸易,公司应该进行诊断研究,既要知道他们内部是否有技术资源,也要诊断他们的潜在客户是否也有这样的准备。从这个角度来看,这项工作旨在设计一种工具,可以诊断微型和小型企业及其在农村地区的潜在消费者的技术准备和接受程度。在制定这些工具时,采用了一个迭代过程,由三次设计和评价迭代组成。具有丰富仪器设计经验的学术专家进行了首次评估;第二次迭代在试点实地研究中进行了评估,来自Pococí和圣卡洛斯等地区的6家公司和10名消费者参与了研究。最后,第三次迭代是在Río阿拉胡埃拉省(Cuarto de Alajuela)进行的案例研究,该地区的29家公司和261名消费者参与了这项研究。诊断强调,大多数这些公司表示,他们没有技术上准备实施电子商务,而大多数参与的消费者表示,他们确实觉得技术上准备使用这些平台。
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引用次数: 1
The impact of using CouchDB on Hyperledger Fabric performance for heterogeneous medical data storage 使用CouchDB对异构医疗数据存储Hyperledger Fabric性能的影响
Pub Date : 2021-10-25 DOI: 10.1109/CLEI53233.2021.9640180
A. Spengler, P. S. Souza
The popularization of Bitcoin and other cryptocurrencies has motivated the interest in using blockchain infrastructure in contexts other than the original. This is due to blockchain allows for a distribution of data with decentralized management and in a secure environment. In this scenario, the goal of this work is to evaluate the impact of database usage when blockchain is employed to manipulate large volumes of heterogeneous data. The methodology used in our evaluation considers the Hyperledger Fabric to set up a network for sharing medical data, which is obtained from a real database. The performance of this network was collected through experimental studies, with the Hyperledger Caliper benchmark, by measuring the throughput and latency of the network with and without the CouchDB database. Our results show the impact of the overhead imposed by the database when it is used in a blockchain network. This work contributes to future developers of blockchain applications as it shows the impact of database usage on such applications.
比特币和其他加密货币的普及激发了人们在原始环境之外使用区块链基础设施的兴趣。这是因为区块链允许在分散管理和安全的环境中分发数据。在这种情况下,这项工作的目标是评估当使用区块链来操作大量异构数据时数据库使用的影响。我们在评估中使用的方法考虑了超级账本结构来建立一个共享医疗数据的网络,这些数据是从真实的数据库中获得的。该网络的性能是通过实验研究收集的,使用Hyperledger Caliper基准测试,通过测量有和没有CouchDB数据库的网络的吞吐量和延迟。我们的结果显示了数据库在区块链网络中使用时所带来的开销的影响。这项工作有助于区块链应用程序的未来开发人员,因为它显示了数据库使用对此类应用程序的影响。
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引用次数: 0
MicroIP: A general-purpose microservice-based integration platform MicroIP:一个通用的基于微服务的集成平台
Pub Date : 2021-10-25 DOI: 10.1109/CLEI53233.2021.9640179
A. Nebel, Laura González, Guzmán Llambías
The development of large-scale software systems is usually supported by integration platforms, which provide connectivity and mediation capabilities to facilitate the integration of heterogeneous and distributed applications. Integration platforms have traditionally been built as monolithic systems which, in some of the current contexts (e.g. market's high pace of demand, large amount of users and data), present issues in terms of scalability, maintainability and fault tolerance, among others. In turn, microservices architecture is an approach for developing applications as a set of small independent services, which may contribute to address such limitations (e.g. maintaining and scaling services independently, according to their specific needs). Indeed, various integration platform proposals leveraging this approach have emerged during the last years. However, those proposals are domain-specific and/or they do not provide insights regarding the architecture and implementation of the platform. This paper proposes a general-purpose microservice-based integration platform, which aims to address limitations of monolithic solutions and of the aforementioned existing proposals. Our work comprises the definition of the platform and its main functionality, a description of its microservice-based architecture, and implementation alternatives as well as prototypes for some of its main components.
大型软件系统的开发通常由集成平台支持,集成平台提供连接性和中介功能,以促进异构和分布式应用程序的集成。传统上,集成平台是作为单片系统构建的,在当前的一些环境中(例如,市场的高需求、大量的用户和数据),在可伸缩性、可维护性和容错等方面存在问题。反过来,微服务架构是一种将应用程序开发为一组小型独立服务的方法,这可能有助于解决这些限制(例如,根据特定需求独立维护和扩展服务)。实际上,利用这种方法的各种集成平台建议在过去几年中已经出现。然而,这些建议是特定于领域的,并且/或者它们没有提供关于平台的体系结构和实现的见解。本文提出了一个通用的基于微服务的集成平台,旨在解决单片解决方案和上述现有方案的局限性。我们的工作包括平台及其主要功能的定义、基于微服务的架构的描述、实现方案以及一些主要组件的原型。
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引用次数: 0
Disruptive Innovation: A valuable experience in the teaching and learning process of Artificial Intelligence 破坏性创新:人工智能教学过程中的宝贵经验
Pub Date : 2021-10-25 DOI: 10.1109/CLEI53233.2021.9640067
R. Costaguta, N. Salazar
The pandemic caused by Covid-19 affected all educational levels throughout the world. Several countries established periods of confinement for their inhabitants, and this led many teachers to adapt their courses for virtual development. This adaptation reduced in many cases to generating a rapid and emergency response through the digitization of what designed for a face-to-face environment, for example, with classes through videoconferences, redesigning activities to solve in a virtual environment, and solving online questionnaires. However, this article presents the adaptation of a university curricular space, specially designed for virtuality. It's about the educational innovation carried out on the Artificial Intelligence subject, which designed to take advantage of the potential of web 3.0 tools and mitigate the inconveniences of non-face-to-face classes. The results obtained highlight the innovative academic value of this initiative, and its transferability and sustainability over time.
由Covid-19引起的大流行影响了世界各地的所有教育水平。一些国家为其居民设立了禁闭期,这导致许多教师根据虚拟发展调整他们的课程。这种适应在许多情况下减少到通过为面对面环境设计的内容的数字化来产生快速和紧急响应,例如,通过视频会议进行课程,重新设计在虚拟环境中解决的活动,以及解决在线问卷。然而,本文提出了一个专门为虚拟而设计的大学课程空间的适应性。它是关于人工智能学科的教育创新,旨在利用web 3.0工具的潜力,减轻非面对面课程的不便。所获得的结果突出了这一倡议的创新学术价值,以及它的可转移性和可持续性。
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引用次数: 0
Program Committees 程序委员会
Pub Date : 2021-10-25 DOI: 10.1109/clei53233.2021.9640121
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引用次数: 0
Approaches of predictive and clustering methods used in emergency events: A Systematic Literature Review 预测和聚类方法在紧急事件中的应用:系统文献综述
Pub Date : 2021-10-25 DOI: 10.1109/CLEI53233.2021.9640022
Bernis Loor-Zambrano, Frank Tello-Salvador, Roberth Alcivar-Cevallos, Leticia Vaca Cárdenas
Currently, social networks play a fundamental role in disseminating information on natural disasters and urban emergencies. This article presents a Systematic Literature Review (SLR) on using social media data as a basis for applying different classification, clustering, and prediction algorithms in emergency response scenarios. The first part focuses on information sources; after, the investigations that used classification, clustering, and prediction techniques or algorithms are described. Finally, the results obtained can be used to make optimal allocation and resource management decisions according to the emergency event.
目前,社会网络在传播自然灾害和城市紧急情况信息方面发挥着重要作用。本文介绍了一篇系统文献综述(SLR),以社交媒体数据为基础,在应急响应场景中应用不同的分类、聚类和预测算法。第一部分重点介绍信息来源;然后,描述了使用分类、聚类和预测技术或算法的调查。最后,所得结果可用于针对突发事件进行最优配置和资源管理决策。
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引用次数: 0
Compliance Requirements Model for collaborative business process and evaluation with process mining 用于协作业务流程和评估的遵从性需求模型
Pub Date : 2021-10-25 DOI: 10.1109/CLEI53233.2021.9640197
Laura González, Andrea Delgado
The daily operation of organizations leaves a trail of the execution of business processes (BPs) including activities, events and decisions taken by participants. Compliance requirements add specific control elements to process execution, e.g. domain and/or country regulations to be fulfilled, enforcing order of interaction messages or activities, or security checks on roles and permissions. As the amount of available data in organizations grows everyday, using execution data to detect compliance violations and its causes, can help organizations to take corrective actions for improving their processes and comply to applying rules. Compliance requirements violations can be detected at runtime to prevent further execution, or in a post mortem way using Process Mining to evaluate process execution data against the specified compliance requirements for the process. In this paper we present a BP compliance Requirements Model (BPCRM) defining generic compliance controls that can be used to specify specific compliance requirements over BPs, that are used as input to assess compliance violations with process mining. This model can be seen as a catalogue that includes a set of predefined compliance rules or patterns in one place, helping organizations to specify and evaluate the compliance of their processes.
组织的日常操作会留下业务流程(bp)执行的痕迹,包括参与者所采取的活动、事件和决策。遵从性需求将特定的控制元素添加到流程执行中,例如,要实现的域和/或国家法规,强制交互消息或活动的顺序,或角色和权限的安全检查。由于组织中的可用数据量每天都在增长,使用执行数据来检测遵从性违规及其原因,可以帮助组织采取纠正措施来改进其流程并遵守应用规则。可以在运行时检测遵从性需求违反,以防止进一步执行,或者以事后分析的方式使用Process Mining来根据流程的指定遵从性需求评估流程执行数据。在本文中,我们提出了一个BP合规性需求模型(BPCRM),它定义了通用的合规性控制,可用于指定BP的特定合规性需求,这些合规性控制可用作输入,通过流程挖掘来评估合规性违规情况。这个模型可以看作是一个目录,在一个地方包含一组预定义的遵从性规则或模式,帮助组织指定和评估其过程的遵从性。
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引用次数: 1
An Analysis of the Time Aggregation Influence on Patients Forecasting in Emergency Services 时间聚合对急诊病人预测的影响分析
Pub Date : 2021-10-25 DOI: 10.1109/CLEI53233.2021.9640117
Hugo Álvarez-Chaves, David F. Barrero, Helena Hernández Martínez, M. Benito
The COVID-19 pandemic has underlined that Emergency Department (ED) overcrowding is a critical factor in care services. Getting an approximation of the number of patients attending the department can assist in service resources planning and prevent overcrowding. In this manuscript we present the forecasting results for the admissions, inpatients and discharges series in ED by using different time aggregations (eight hours, twelve hours, one day and the service workers official shifts) and classical time series algorithms. Moreover, series forecasting is performed in two terms: long (four months ahead) and short (seven days ahead). The results show that time aggregations strongly influence the forecast quality, decreasing the effectiveness for one-day aggregations. In addition, best metrics are not obtained in the same aggregation, so there is no best aggregation for all cases. Therefore, it is essential to analyse the ED-related problem faced for the time aggregation selection.
2019冠状病毒病大流行突出表明,急诊科人满为患是护理服务的一个关键因素。获得就诊病人的大致数量可以帮助规划服务资源,防止过度拥挤。在本文中,我们采用不同的时间聚合(8小时、12小时、一天和服务人员轮班)和经典的时间序列算法对急诊科的入院、住院和出院序列进行了预测。此外,序列预测分为两个阶段:长期(提前4个月)和短期(提前7天)。结果表明,时间聚合对预报质量影响较大,降低了日聚合的预报效果。此外,最佳指标不是在相同的聚合中获得的,因此不存在适用于所有情况的最佳聚合。因此,有必要对时间聚合选择所面临的ed相关问题进行分析。
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引用次数: 0
Assessing the impact of mobility reduction in the second wave of COVID-19 评估第二波COVID-19疫情中人员流动减少的影响
Pub Date : 2021-10-25 DOI: 10.1109/CLEI53233.2021.9639974
Álvaro Cabana, Lorena Etcheverry, M. Fariello, P. Bermolen, Marcelo Fiori
By February 2021, Uruguay was experiencing the first wave of the COVID-19 pandemic, while many countries were already suffering the second wave. Several countries took various measures to prevent the saturation of the health system, ranging from closure of restaurants and suspension of classes to nighttime traffic restrictions. In this paper, we explore the effect of mobility restriction measures on the infection incidence in countries that are in some way similar to Uruguay: they have between one and twelve million inhabitants, a reasonable testing effort and they had the epidemic under control at some point. For these countries, we study mobility indexes provided by Google, an index on governmental measures compiled by the University of Oxford, and the daily new cases per 100,000 inhabitants. First, we observed that the mobility reported by Google is directly related to government measures: the higher the level of restrictive measures, the lower the mobility index. Then, we analyze the influence of mobility reduction on the growth/decrease speed of the 7-day average of new cases per 100,000 inhabitants (P7) and show that high levels of mobility reduction lead to a decrease in the index. Finally, we related the required duration of mobility restrictions with the P7 maximum and also point out the risk of lifting the measures too early.
到2021年2月,乌拉圭正在经历COVID-19大流行的第一波,而许多国家已经遭受了第二波。几个国家采取了各种措施,从关闭餐馆和停课到夜间交通限制,以防止卫生系统饱和。在这篇论文中,我们探讨了行动限制措施对感染发生率的影响,这些国家在某种程度上与乌拉圭相似:它们有100万到1200万居民,有合理的检测工作,并且在某种程度上控制了疫情。对于这些国家,我们研究了谷歌(Google)提供的流动性指数、牛津大学(University of Oxford)编制的政府措施指数,以及每10万居民每日新增病例数。首先,我们观察到谷歌报告的流动性与政府措施直接相关:限制措施水平越高,流动性指数越低。然后,我们分析了流动性减少对每10万居民7天平均新增病例增长/减少速度的影响(P7),并表明流动性减少水平高导致指数下降。最后,我们将行动限制所需的持续时间与P7最大值联系起来,并指出过早解除措施的风险。
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引用次数: 2
Improving the performance of graph database queries using linear algebra operations 使用线性代数操作改进图数据库查询的性能
Pub Date : 2021-10-25 DOI: 10.1109/CLEI53233.2021.9640043
Bruno Amaral, Juan Manuel Tirado Martin, Lorena Etcheverry, P. Ezzatti
The application of graph databases to different domains is gaining momentum. The Resource Description Framework (RDF) is one of the data models supported by graph databases, and SPARQL is the standard query language for RDF graphs. These databases are also known as RDF triplestores. Many triplestores are implemented over the relational data model, using tables to store graphs and translating SPARQL queries into SQL queries, and this approach can lead to unnecessary overheads. On the other hand, in the context of High- Performance Computing (HPC), implementations over hybrid hardware platforms using Numerical Linear Algebra (NLA) operations have become an effective and efficient computing strategy in the last decade. In particular, Graphics Processing Units (GPUs) have been adopted to perform general-purpose computations due to their high performance, reasonable prices, and an attractive relationship between computing capacity and energy consumption. In the context described above, this paper presents an initial study on the efficient implementation of a set of SPARQL queries in terms of NLA operations. Additionally, we evaluate the performance of implementing these operations on GPUs.
图数据库在不同领域的应用正在蓬勃发展。资源描述框架(RDF)是图数据库支持的数据模型之一,SPARQL是RDF图的标准查询语言。这些数据库也被称为RDF三元库。许多三重存储都是在关系数据模型上实现的,它们使用表来存储图形,并将SPARQL查询转换为SQL查询,这种方法可能会导致不必要的开销。另一方面,在高性能计算(HPC)的背景下,在混合硬件平台上使用数值线性代数(NLA)运算的实现在过去十年中已经成为一种有效和高效的计算策略。特别是,图形处理单元(gpu)由于其高性能、合理的价格以及计算能力和能耗之间的良好关系而被用于执行通用计算。在上面描述的上下文中,本文对一组SPARQL查询在NLA操作方面的有效实现进行了初步研究。此外,我们还评估了在gpu上实现这些操作的性能。
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引用次数: 0
期刊
2021 XLVII Latin American Computing Conference (CLEI)
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