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Weight factors optimization for university admission 高校录取权重因素优化
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2013-11-21 DOI: 10.1109/CLEI.2013.6670672
A. Martinez, Angel Garcia Banos
{"title":"Weight factors optimization for university admission","authors":"A. Martinez, Angel Garcia Banos","doi":"10.1109/CLEI.2013.6670672","DOIUrl":"https://doi.org/10.1109/CLEI.2013.6670672","url":null,"abstract":"Universidad del Valle has an annual admission process for Computing Engineering career, based on the scores in the state examination (ICFES) obtained by the students graduated from high school. This test is organized in several components (math, language, etc) and every career can give more relevance to a component than the others. Traditionally, in our university the Computing Engineering career has given a very high score to the math component but until now it did not have a theoretical support. We just thought Computing Science as a branch of Mathematics and therefore its importance. With this work - for the first time - it has been analyzed the correlation among the components of the state examination and the average grades obtained by students in their careers, by means of a genetic algorithm. We got to the big point that mathematics are not as important as we thought it was.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131764162","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
Approaches for the 2D 0-1 knapsack problem with conflict graphs 带有冲突图的二维0-1背包问题的方法
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2013-11-21 DOI: 10.1109/CLEI.2013.6670612
T. Queiroz, F. Miyazawa
{"title":"Approaches for the 2D 0-1 knapsack problem with conflict graphs","authors":"T. Queiroz, F. Miyazawa","doi":"10.1109/CLEI.2013.6670612","DOIUrl":"https://doi.org/10.1109/CLEI.2013.6670612","url":null,"abstract":"This work deals with the 0-1 knapsack problem in its two-dimensional variant, when there is a conflict graph related to pairs of conflicting items. Conflicting items must not be packed together in a same bin. This problem also arises as a subproblem in the bin packing problem and in supply chain scenarios. We propose a heuristic that generates iteratively a solution using a so called greedy randomized procedure. In order to avoid local optima solutions, a penalization memory list is used, and several packing strategies under a two-dimensional grid of points are considered. The heuristic solutions are compared with those ones computed by means of an integer programming model, also proposed in this work and solved with CPLEX solver. The heuristic got optimal solutions for 75% of the instances in a lower CPU time compared with that to solve the integer model.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133359293","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
Lessons learned with supervisioned internships in Teaching degree Computer Science: Looking for Computer Science educators for basic education 教学学位计算机科学:为基础教育寻找计算机科学教育工作者
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2013-11-21 DOI: 10.1109/CLEI.2013.6670643
P. Scaico, T. Costa
{"title":"Lessons learned with supervisioned internships in Teaching degree Computer Science: Looking for Computer Science educators for basic education","authors":"P. Scaico, T. Costa","doi":"10.1109/CLEI.2013.6670643","DOIUrl":"https://doi.org/10.1109/CLEI.2013.6670643","url":null,"abstract":"The supervised internship allows students to experience situations of their future professional life even in academia. In Teaching degree Computer Science courses is often challenging to administer the internship because Computer Science does not exist in the Brazilian curriculum. Thus, this paper presents an experience report about these issues and some learned lessons.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129720198","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
Beyond digital inclusion: Social appropriation of information and communication technologies.: An experience in Venezuela: Infocentros 超越数字包容:信息和通信技术的社会挪用。委内瑞拉的经历:infocentrs
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2013-11-21 DOI: 10.1109/CLEI.2013.6670615
Nancy Zambrano Rivas
{"title":"Beyond digital inclusion: Social appropriation of information and communication technologies.: An experience in Venezuela: Infocentros","authors":"Nancy Zambrano Rivas","doi":"10.1109/CLEI.2013.6670615","DOIUrl":"https://doi.org/10.1109/CLEI.2013.6670615","url":null,"abstract":"Digital inclusion policies also known as policies for democratization of information and communication technology are focused on helping important popular sectors access technology and build skills. We are interested that organized communities make beneficial use of digital content to solve their problems, to create networks, to produce and disseminate content, to develop their projects, to interact with e-Government and to strengthen the self-government; that means that people may use the technology to improve their quality of life and reinforce their cultural identity and organizational processes. This is known as social technology appropriation which goes beyond digital inclusion; it is a social inclusion policy. In order to give that qualitative jump one requires changes in the educative model, with an active intervention of the communities. The experience of the Venezuelans infocentros is explained.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128874468","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
Spatial data warehouses and SOLAP using open-source tools 空间数据仓库和SOLAP使用开源工具
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2013-11-21 DOI: 10.1109/CLEI.2013.6670660
D. Gonzalez, Leonardo Pandolfi Gonzalez
{"title":"Spatial data warehouses and SOLAP using open-source tools","authors":"D. Gonzalez, Leonardo Pandolfi Gonzalez","doi":"10.1109/CLEI.2013.6670660","DOIUrl":"https://doi.org/10.1109/CLEI.2013.6670660","url":null,"abstract":"The use of data warehouses and OLAP tools has been increasing in the last few decades. Several organizations are seeking to extend those concepts in order to include spatial elements within the data analysis. However, having one tool that includes both OLAP operations and results presentation on geographic maps has proven to be challenging. If we add the requirement of using open-source software to achieve this, the scenario becomes even more defiant. This article uses a practical example to expose different challenges that can arise when working with spatial data warehouses and spatial OLAP. It also describes possible solutions offered by open-source tools in order to implement this type of applications.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127050324","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
Study and characterization of storage device traces for determining the presence of selfsimilar model 确定自相似模型存在的存储器件轨迹的研究和表征
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2013-10-01 DOI: 10.1109/CLEI.2013.6670664
M. Borrero, M. ChristianG.Quintero
{"title":"Study and characterization of storage device traces for determining the presence of selfsimilar model","authors":"M. Borrero, M. ChristianG.Quintero","doi":"10.1109/CLEI.2013.6670664","DOIUrl":"https://doi.org/10.1109/CLEI.2013.6670664","url":null,"abstract":"In this work we pretend to characterize the traces of some peripheral storage devices or disks, with the aim of determining the presence of the selfsimilar model. We have twenty-three (23) storage devices, working with financial applications, during twelve (12) hours of system activity. Each measurement represents a read/write request to the device, shaped by the variables: arrival time of the request, identification of the device where request is done, address and size of the request, and type of the operation made (read/write).We have constructed the time series: Number of request to disk at time interval (t-1,t) , and we have observed that the time series shows characteristics belonging to a selfsimilar process with a large range dependence.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"47 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124458678","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
Knowledge management in a software factory: A case of study applying the tool GAIA - L.A 软件工厂的知识管理:应用GAIA - la工具的案例研究
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2012-10-01 DOI: 10.1109/CLEI.2012.6427192
Anderson de Souza Goes, R. Barros
{"title":"Knowledge management in a software factory: A case of study applying the tool GAIA - L.A","authors":"Anderson de Souza Goes, R. Barros","doi":"10.1109/CLEI.2012.6427192","DOIUrl":"https://doi.org/10.1109/CLEI.2012.6427192","url":null,"abstract":"With the expansion of information technology the number and the flow of information generated increased. Whit this, the demand for mechanisms to management these data also increased. This article attempts to synthesize this study inside a software factory. The mechanism used for this was a corporate portal, which is an environment capable of providing an aggregated view of information and codified. With this study, together withal the management of knowledge were described eight tools to manage this knowledge, among these, is the tool GAIA lessons learned which was developed and applied at the factory. Withal this knowledge comes to be stored inside the system, creating a historical database of high level.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122732160","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
Towards an intelligent management approach for power consumption in buildings case study 探讨楼宇用电智能化管理方法的案例研究
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2012-10-01 DOI: 10.1109/CLEI.2012.6427182
C. Quintero M., J. Jiménez Mares
{"title":"Towards an intelligent management approach for power consumption in buildings case study","authors":"C. Quintero M., J. Jiménez Mares","doi":"10.1109/CLEI.2012.6427182","DOIUrl":"https://doi.org/10.1109/CLEI.2012.6427182","url":null,"abstract":"The power consumption in buildings represent a 30–40% of the final energy usage, which is caused by: HVAC (Heating, ventilation and air conditioning), lighting and appliances with any connection to the power grid. The major challenge is to minimize the power consumption by optimizing the operation of several loads without impact in the customer's comfort. For this purpose, the design of an Energy-Efficiency Management Model using Intelligent Systems is presented in this paper. Furthermore a comparative analysis is carried out to evaluate the power consumption performance of some Demand Side Management (DSM) techniques. In this case Direct Load Control, Load Priority and Scheduled Programming techniques using Fuzzy Logic and Artificial Neural Networks (ANN) are compared with the proposed approach. Experimental testing is performed with the consumption data base. The testing results show that energy savings can be achieved through control of the states of various loads.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127324992","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: 3
Intelligent system for efficient management of electrical energy 高效管理电能的智能系统
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2012-10-01 DOI: 10.1109/CLEI.2012.6427176
M. ChristianG.Quintero, Yoly P. Trivino Barrios, Eduardo R. Terraza Rivera
{"title":"Intelligent system for efficient management of electrical energy","authors":"M. ChristianG.Quintero, Yoly P. Trivino Barrios, Eduardo R. Terraza Rivera","doi":"10.1109/CLEI.2012.6427176","DOIUrl":"https://doi.org/10.1109/CLEI.2012.6427176","url":null,"abstract":"This paper presents an intelligent system based on Back Propagation (BP) Neural Network implementation that aids to decrease power consumption in three different environments: Residential, Commercial and Industrial. A graphical interface was designed to provide the user with detailed information on consumption of the devices installed in each of the above environments, and allows the modification of parameters such as number of devices, power consumption associated to the levels specified for each device, environmental conditions, among others. Implementing the system developed in different environments, power consumption was lower than the one generated by implementing models without intelligent management. Additionally, we could estimate the savings in wear life of the devices, compared to the implementation of the system without intelligent management.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114720203","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
Genesis of SOFTEX 2000 project SOFTEX 2000项目的起源
Latin American Computing Conference / Conferencia Latinoamericana En Informatica Pub Date : 2012-10-01 DOI: 10.1109/CLEI.2012.6427264
J. Araujo
{"title":"Genesis of SOFTEX 2000 project","authors":"J. Araujo","doi":"10.1109/CLEI.2012.6427264","DOIUrl":"https://doi.org/10.1109/CLEI.2012.6427264","url":null,"abstract":"This article describes the efforts of the Brazilian Software industry to export its products. The companies reunited in its category's association, the ASSESPRO - Association of the Brazilian Companies of Software and Services, motivated by the competition with foreign enterprises in the home market, got organized to spread internationally its products, participating in major computing events. The first one of them, was COMDEX/Fall 90 in Las Vegas - USA. In Brazil this work occurred at the same time as discussions about the importance of software in a major government center for developing of software for the telecommunications sector: the CPqD, TELEBRAS` research center. These events culminated in the involvement of the Brazilian government to support the companies in its efforts to export its products, and the creation of the SOFTEX 2000 project.","PeriodicalId":263586,"journal":{"name":"Latin American Computing Conference / Conferencia Latinoamericana En Informatica","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133109728","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
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