Latin American Computing Conference / Conferencia Latinoamericana En Informatica最新文献

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Sensitivity Analysis of the Negative Selection Algorithm Applied to Anomalies Identification in Builds 负选择算法在建筑异常识别中的敏感性分析
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2019-09-01 DOI: 10.1109/CLEI47609.2019.235087
Júlio César de Lima Costa, L. Castro, Calebe P. Bianchini
{"title":"Sensitivity Analysis of the Negative Selection Algorithm Applied to Anomalies Identification in Builds","authors":"Júlio César de Lima Costa, L. Castro, Calebe P. Bianchini","doi":"10.1109/CLEI47609.2019.235087","DOIUrl":"https://doi.org/10.1109/CLEI47609.2019.235087","url":null,"abstract":"The search for replacing manual processes with automated processes brings with it an increase in complexity related to its controls and monitoring. The use of builds, that is, automated software delivery processes, is a good example. Its primary objective is the construction, packaging, testing, and delivery of system versions. The execution of tests in the context of software delivery automation materializes the existing controls in the execution of manual processes and can basically result in success or failure. The failure state occurs when one or many of the steps that make up the automated process do not obtain the expected result. The software industry invests a lot of time in investigating build failures, as they can fail for reasons not directly related to the tests performed. Such failures are called anomalies. This article presents a way to automatically identify anomalies using a natural computing algorithm inspired by artificial immune systems, called the Negative Selection Algorithm (ASN), in order to obtain the correct classification of failures in builds. The focus of the article is on the sensitivity analysis of the ASN in relation to the neighborhood radius of the detectors and the number of detectors generated.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"181 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":"127248107","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
Exact Method for the Container Loading Problem with Priority and Stability 具有优先权和稳定性的集装箱装载问题的精确方法
Oliviana Xavier do Nascimento, Luciana Vieira de Melo, T. Queiroz
{"title":"Exact Method for the Container Loading Problem with Priority and Stability","authors":"Oliviana Xavier do Nascimento, Luciana Vieira de Melo, T. Queiroz","doi":"10.1109/CLEI.2018.00029","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00029","url":null,"abstract":"In this work, it is presented an exact method to solve the Single Container Loading Problem, which aims at deciding which items should be packed into the container in order to attain the maximum loaded value. The method is derived from the resolution of integer and constraint programming models. One of the integer programming models is a relaxation for the three-dimensional packing problem related to arranging items into the container. Besides that, it is measured how constraints related to priority conditions and vertical and horizontal load cargo stability can impact on the solution. Instances from the literature are solved in order to assess the method behavior in relation to the occupied volume and runtime. It has been observed that the highest volume losses have happened when the priority conditions are taken into consideration, while the runtime has increased when the vertical and horizontal stability constraints are considered.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127274197","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
3D Objects Recognition Using Artificial Neural Networks 基于人工神经网络的三维物体识别
D. Correa, F. Osório
{"title":"3D Objects Recognition Using Artificial Neural Networks","authors":"D. Correa, F. Osório","doi":"10.1109/CLEI.2018.00042","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00042","url":null,"abstract":"The recent advances in computational processing and the low prices of sensors able to capture three-dimensional information have contributed for the progress of computer vision researches involving 3D data and 3D images. Object recognition allows us to develop complex applications for intelligent mobile robotics, augmented reality, systems for the visually impaired, among other applications. In this context, this paper presents a method for recognizing and classifying objects which are represented in three dimensions through depth maps. The data used in this study comes from the \"UW RGB-D Object Dataset\" from University of Washington, which is available online and is largely used to evaluate 3D object classifiers. This object database is composed of depth maps captured by the Microsoft's Kinect sensor. The obtained results are promising and contribute positively to the computer vision area.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117237561","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
Development and Evaluation of a Chatbot for the Regional Museum of São João del-Rei <s:1> o jo<e:1> o del-Rei地区博物馆聊天机器人的开发与评价
A. P. S. Alves, Daniel Oliveira Gherard de Alencar, Antônio Márcio Gonçalo Filho, S. C. Paiva, D. Carvalho
{"title":"Development and Evaluation of a Chatbot for the Regional Museum of São João del-Rei","authors":"A. P. S. Alves, Daniel Oliveira Gherard de Alencar, Antônio Márcio Gonçalo Filho, S. C. Paiva, D. Carvalho","doi":"10.1109/CLEI.2018.00054","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00054","url":null,"abstract":"The use of new information and communication technologies (ICTs) has promoted changes in the way in which information is distributed. A challenge is to explore the integration of new ICTs, such as smartphones and chatbots, to disseminate information within a regional museum. In this paper, we proposed the development of a chatbot to the Regional Museum of Sao Joao del-Rei to present his most outstanding artifact, a painting named Retrato de Menina. This paper presents the chatbot design in which was implemented on the IBM Watson platform. An evaluation with users was performed applying the Wizard of Oz method. The results of the evaluation evidenced that the proposed chatbot satisfies users, although it is necessary to improve the communication flow in order to guide users in the chatbot's interaction. The results showed that implementing several chatbots (i.e., one for each artifact of the museum) is better than making a single one, because this way avoids failures in determining dialog contexts and explore more playful interaction styles, such as chatbots that pretend to be the character of some artifact.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128625428","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
Optimization of BLAST Seed Indexing in the Alignment of DNA Sequences with GPU using CUDA 利用CUDA优化GPU DNA序列比对中的BLAST Seed索引
Franklin Luis Antonio Cruz Gamero, J. C. Gutiérrez-Cáceres
{"title":"Optimization of BLAST Seed Indexing in the Alignment of DNA Sequences with GPU using CUDA","authors":"Franklin Luis Antonio Cruz Gamero, J. C. Gutiérrez-Cáceres","doi":"10.1109/CLEI.2018.00069","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00069","url":null,"abstract":"In the alignment of biological sequences such as DNA, RNA and proteins, different algorithms are used, mainly the Basic Local Alignment Search Tool (BLAST), which has two phases, a heuristic phase of seed indexing and another extension phase with a comparison of sequences using the Smith-Waterman (SW) algorithm, which allows the alignment of a short sequence \"query\" with a long reference sequence \"db\" in a very fast way in relation to other algorithms of alignment. This work proposes to use a two-dimensional matrix instead of a sparse matrix as a hash table for the storage of the seed index obtained, as well as the use of the GPU of our graphic card to optimize the planting, it reduces 11.24 % of the time of processing of seed indexing phase of the BLAST, presenting the use of GPU with CUDA a better performance in processing time than the sequential implementation and another multi CPUs using threads with OPENMP. Our algorithm has a complexity in time of O(1) to obtain the seeds identical to the pattern key. The performance is greater when the length of the hash key increases. For its evaluation tests we used a laptop core i7 of 16gb of RAM and a graphic card of 384 cores with C++ programming language and CUDA. Alignment tests were performed using real DNA sequences obtained from the National Center for Biotechnology Information (NCBI) and ENSEMBL in FASTA format with reference sequences of up to 1.3 Gb, such as the complete genome of the hen (Gallus gallus) that has 1 230 258 557 base pairs (bp) and with a query sequence of 140 bp, which was indexed with a 5 bp key in 1074 milliseconds using GPU.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116307111","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
HCI Education in Brazil in the Light of Curricula Guidelines 课程指南下的巴西HCI教育
T. G. Guimarães, R. Prates
{"title":"HCI Education in Brazil in the Light of Curricula Guidelines","authors":"T. G. Guimarães, R. Prates","doi":"10.1109/CLEI.2018.00099","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00099","url":null,"abstract":"Human-Computer Interaction (HCI) has been researched, practiced and taught around the world in diverse contexts. In this paper, we focus on Brazil and its particular context. We interviewed thirteen professors to investigate their approach in introductory HCI courses within computing undergraduate courses. This paper reports a portion of this analysis, focusing on the content being taught, and comparing it to national and international guidelines. Our results show that most professors use a project-centered approach in the course, balancing theory and practice. Semiotics and accessibility are strong influences in our context. No international guidelines mention any semiotic approach to HCI, although they are usually more detailed than national guidelines. International guidelines provide a list of topics together with a list of learning outcomes, while national guidelines are more focused on topics. We contribute to the HCI community by providing an analysis of the Brazilian context.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"49 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114044068","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
Olympiad in Educational Robotics The Experience in the Use of ICT in a University Project to Help Costa Rican Youth to Avoid Drug Consumption 在一个帮助哥斯达黎加青年避免吸毒的大学项目中使用信息和通信技术的经验
Pedro Fonseca Solano, Irene Hernández Ruiz
{"title":"Olympiad in Educational Robotics The Experience in the Use of ICT in a University Project to Help Costa Rican Youth to Avoid Drug Consumption","authors":"Pedro Fonseca Solano, Irene Hernández Ruiz","doi":"10.1109/CLEI.2018.00097","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00097","url":null,"abstract":"This article presents the experience gained in the development and execution of an Intercollegiate Robotics Olympiad, as a result of the execution of the Training of Trainers in Robotics for Colleges in Vulnerable Areas of Costa Rica project, as well as the challenges developed and the results obtained by the participating students. This is an inter-institutional project that is developed jointly by the School of Computing of the National University of Costa Rica, the Costa Rican Institute on Drugs (ICD) and the Ministry of Public Education (MEP) of Costa Rica, which is oriented to prepare instructors in the area of robotics at the secondary education level, so that they can train their students in vulnerable regions of Costa Rica. In order to provide them with an option to occupy their free time in positive activities, and thus keep them out of reach the drugs. This training is given through workshops in which they are taught to create robot models using sensors, so they can program different tasks to solve challenges. And in this way they can compete and show their learning in an Olympiad or encounter where teams from the other schools benefited by the project participate.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126005646","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
Negotiation Strategies in Multi-Agent Systems for Meeting Scheduling 多智能体系统中的会议调度协商策略
Rodrigo Rodrigues Pires de Mello, Thiago Ângelo Gelaim, R. Silveira
{"title":"Negotiation Strategies in Multi-Agent Systems for Meeting Scheduling","authors":"Rodrigo Rodrigues Pires de Mello, Thiago Ângelo Gelaim, R. Silveira","doi":"10.1109/CLEI.2018.00037","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00037","url":null,"abstract":"An agent not always can single-handed finish a certain task, sometimes he has to interact with other agents to achieve the desired outcome. This interaction can be a time request, in which the agent must spend with the other agent. To address this task, this research focuses on using a multi-agent system for automatic scheduling. During this task, agents may not agree upon the date of a meeting or take too much time to decide what action to execute. In order to solve these conflicts, this study applies a counterproposal technique and representation of user preferences to implement two different negotiation strategies in a multi-agent system for an automatic meeting scheduler. The scenarios of this work indicate that combining different strategies at certain moments can increase the chance of success during commitment definition, reduce the amount of information shared among agents, avoid privacy issues, raise the expressiveness of agents acceptance region and remove the necessity of a strategy selector.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127833383","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
On the Adoption of ICT Best Practices in Brazilian Federal Higher Education Institutions 关于巴西联邦高等教育机构采用信息通信技术最佳做法
Gustavo Caetano Borges, R. Miani
{"title":"On the Adoption of ICT Best Practices in Brazilian Federal Higher Education Institutions","authors":"Gustavo Caetano Borges, R. Miani","doi":"10.1109/CLEI.2018.00070","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00070","url":null,"abstract":"ICT governance aims at guiding a better investment of technological resources so that the organization improves its performance and productivity. To this end, organizations often employ well-tested, and documented processes also called ICT best practices. Due to its own nature and way of management, public institutions are examples of organizations that need specific studies to implement ICT best practices. The focus of this work is to investigate how ICT best practices are employed by the Brazilian Federal Higher Education Institutions (IFES). We use two regulations to perform such analysis: the IFES IT Director Plans (PDTI) documents and the IN04/2014 normative instruction of the Brazilian federal government that provide guidelines about how institutions should hire their ICT solutions. With information gathered from such documents, and also some related literature materials, was possible to determine an initial set of ICT best practices that could suit the needs of the IFES. This initial set was used to build a survey that was sent to all of the IFES. The results show heterogeneity in the use of best practices by the Brazilian universities that may be related to particular characteristics of each institution such as the size of the ICT department and the academic degree of its employees.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131000895","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
Web accessibility: Study web accessibility in public places of the Colombian State 网络可访问性:研究哥伦比亚州公共场所的网络可访问性
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2015-12-17 DOI: 10.1109/CLEI.2015.7360037
J. A. Herrera, J. A. B. Ricaurte
{"title":"Web accessibility: Study web accessibility in public places of the Colombian State","authors":"J. A. Herrera, J. A. B. Ricaurte","doi":"10.1109/CLEI.2015.7360037","DOIUrl":"https://doi.org/10.1109/CLEI.2015.7360037","url":null,"abstract":"This article presents the results obtained in the process of analysis of the web access level on sites chosen within the framework of the strategy of the Online Government project of the Colombian state. Initially, there is a review about the standards and recommendations provided by the W3C international organization in matter of web access in its two versions of WCAG. Next, there is a contextualization about the Online Government Strategy and about the methodology implemented for the development of the process of analysis of the web access level on the chosen sites and, finally, the presentation of the results obtained within the development of the research conducted.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128676338","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: 4
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