{"title":"[Copyright notice]","authors":"","doi":"10.1109/clei.2018.00003","DOIUrl":"https://doi.org/10.1109/clei.2018.00003","url":null,"abstract":"","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"27 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":"133692731","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}
Data Quality evaluation is a key fundamental in Knowledge Data Discovery projects. There are some project frameworks, like CRISP-DM and DAMA DMBOK, that recommend the preparation of the Data Quality Report, as a tool to describe the found problems during the data exploration phase and to describe an approach to fix those problems. However, those frameworks are very generic in their guidelines and neither tell what exactly should be measured nor how to associate any measure to the data quality. Data Profiling tools and some ETL(Extraction, Transformation and Loading) tools as well, implement some basic Statistical Description tooling, but they do not propose any general methodolgy to evaluate quantitatively the quality of a set of data, except, perhaps, in the IBM Watson Analytics tool. This article proposes a quantitative measure for data quality evaluation, based on Statistical Description tools.
{"title":"Data Quality Measurement Framework","authors":"Marcos Fereira, L. A. Silva","doi":"10.1109/CLEI.2018.00061","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00061","url":null,"abstract":"Data Quality evaluation is a key fundamental in Knowledge Data Discovery projects. There are some project frameworks, like CRISP-DM and DAMA DMBOK, that recommend the preparation of the Data Quality Report, as a tool to describe the found problems during the data exploration phase and to describe an approach to fix those problems. However, those frameworks are very generic in their guidelines and neither tell what exactly should be measured nor how to associate any measure to the data quality. Data Profiling tools and some ETL(Extraction, Transformation and Loading) tools as well, implement some basic Statistical Description tooling, but they do not propose any general methodolgy to evaluate quantitatively the quality of a set of data, except, perhaps, in the IBM Watson Analytics tool. This article proposes a quantitative measure for data quality evaluation, based on Statistical Description tools.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"61 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":"114045623","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}
Vicente Enrique Machaca Arceda, Elian Laura Riveros
In this work, we aim to detect car crash accidents in video. We propose a three-stage framework: The first one is a car detection method using convolutional neural networks, in this case, we used the net You Only Look Once (YOLO); the second stage is a tracker in order to focus each car; then the final stage for each car we use the Violent Flow (ViF) descriptor with a Support Vector Machine (SVM) in order to detect the car crashes. Our proposal is almost in real time with just 0.5 seconds of delay and also we got a 89% accuracy detecting car crashes.
在这项工作中，我们的目标是在视频中检测车祸。我们提出了一个三阶段框架:第一个是使用卷积神经网络的汽车检测方法，在这种情况下，我们使用了网络You Only Look Once (YOLO);第二阶段是跟踪器，以聚焦每辆车;然后在最后阶段，我们使用暴力流(ViF)描述符和支持向量机(SVM)来检测每辆车的碰撞。我们的提议几乎是实时的，只有0.5秒的延迟，而且我们检测车祸的准确率达到了89%。
{"title":"Fast car Crash Detection in Video","authors":"Vicente Enrique Machaca Arceda, Elian Laura Riveros","doi":"10.1109/CLEI.2018.00081","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00081","url":null,"abstract":"In this work, we aim to detect car crash accidents in video. We propose a three-stage framework: The first one is a car detection method using convolutional neural networks, in this case, we used the net You Only Look Once (YOLO); the second stage is a tracker in order to focus each car; then the final stage for each car we use the Violent Flow (ViF) descriptor with a Support Vector Machine (SVM) in order to detect the car crashes. Our proposal is almost in real time with just 0.5 seconds of delay and also we got a 89% accuracy detecting car crashes.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"43 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":"116219195","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}
Jorge Luis Bermeo Conto, Miguel Ángel Zúñiga Prieto, Boris Cabrera, Jorge Javier Maldonado Mahauad
Learning Objects (LOs) are digital educational materials that enable the teaching and learning process to be mediated. Howev-er, their design and creation often exceeds the possibilities that a teacher has for their production. Teachers are experienced users in the educational field and have little or no experience in pro-gramming tools, so it is expected that the production of an OA can be scalable. The aim of this paper is to present an intermedi-ate software solution that supports the systematic application and documentation of the phases proposed in the DICREVOA meth-odology for the design, analysis and implementation of OA. For this a case study with the proposed graphic editors is presented. As a result, this wizard for the automation of the design and creation process of OA will allow teachers to exploit and improve the productivity, reliability, maintainability and portability of this type of educational resource from their experience in the domain of the educational context.
{"title":"Proposal of an Assistant for the Automation of the Design and Creation Process of Learning Objects","authors":"Jorge Luis Bermeo Conto, Miguel Ángel Zúñiga Prieto, Boris Cabrera, Jorge Javier Maldonado Mahauad","doi":"10.1109/CLEI.2018.00051","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00051","url":null,"abstract":"Learning Objects (LOs) are digital educational materials that enable the teaching and learning process to be mediated. Howev-er, their design and creation often exceeds the possibilities that a teacher has for their production. Teachers are experienced users in the educational field and have little or no experience in pro-gramming tools, so it is expected that the production of an OA can be scalable. The aim of this paper is to present an intermedi-ate software solution that supports the systematic application and documentation of the phases proposed in the DICREVOA meth-odology for the design, analysis and implementation of OA. For this a case study with the proposed graphic editors is presented. As a result, this wizard for the automation of the design and creation process of OA will allow teachers to exploit and improve the productivity, reliability, maintainability and portability of this type of educational resource from their experience in the domain of the educational context.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"51 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":"121325830","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}
P. H. B. Siqueira, Paulo H. Oliveira, M. Bedo, D. S. Kaster
This paper addresses complex data storage and retrieval in RDBMS, which depends on metric distance functions for the assessment of data dissimilarity. However, both the empirical analysis of strategies for complex data storage and the definition of a suitable representation for similarity query operators are still open issues in the literature. Here, we fulfill those gaps through the classification, implementation, and evaluation of existing approaches for complex data storage according to four structures found in standard SQL, namely relational, object-relational, binary and semi-structured. Moreover, we also discuss a comprehensive model for complex data retrieval, whose conception of similarity operators is consistent with standard SQL representations. Accordingly, a distance function representation is presented, which enables the RDBMS query processor to interpret and execute physical similarity operators. Experimental results indicate: (i) relational and object-relational structures outperform the other two competitors in the majority of scenarios, whereas (ii) object-relational strategy enables the use of a broader representation.
{"title":"Standard SQL Approaches for Similarity Searching","authors":"P. H. B. Siqueira, Paulo H. Oliveira, M. Bedo, D. S. Kaster","doi":"10.1109/CLEI.2018.00063","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00063","url":null,"abstract":"This paper addresses complex data storage and retrieval in RDBMS, which depends on metric distance functions for the assessment of data dissimilarity. However, both the empirical analysis of strategies for complex data storage and the definition of a suitable representation for similarity query operators are still open issues in the literature. Here, we fulfill those gaps through the classification, implementation, and evaluation of existing approaches for complex data storage according to four structures found in standard SQL, namely relational, object-relational, binary and semi-structured. Moreover, we also discuss a comprehensive model for complex data retrieval, whose conception of similarity operators is consistent with standard SQL representations. Accordingly, a distance function representation is presented, which enables the RDBMS query processor to interpret and execute physical similarity operators. Experimental results indicate: (i) relational and object-relational structures outperform the other two competitors in the majority of scenarios, whereas (ii) object-relational strategy enables the use of a broader representation.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"44 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":"116632582","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}
Evelyn Maria Aranda Acuna, José Luis Vázquez Noguera, Cynthia Villalba
The current process of searching for terminology for medical coding in health standards in the Hospital of Clinics of Paraguay, is done through coding manuals or through the internet of cell phones. This process takes a long time to be done during the medical consultation. The optimization of the current process would allow the search of encoded terminologies during the medical consultation, avoiding that the resident doctors have to perform this extra work after the workday. This work implements a medical terminology server through web services and using the text search engine library: Apache Lucene that is specialized in storage agility and data recovery. The implemented server also allows to perform successful searches of terminologies encoded in standards through friendly or familiar terms. The search time of coded terminologies using the implemented server was compared with the search time of the current process in the hospital of clinics using the internet of cell phones. Under these criteria, the terminology server responds up to 18 times faster than the current search process. In addition, it was made a comparison of the server against a search engine, called Metamorphosys. The terminology server implemented turned out to be quite competitive against Metamorphosys by presenting quite similar response times. Although both tools have a similar average response time, Metamorphosys presents some high atypical values in some algorithms that it presents as search options. The degree of satisfaction of the user in the use of the system was evaluated through a usability questionnaire called “System Usability Scale” (SUS). The evaluation rated the system as “Good” according to the Bangor.
{"title":"Medical terminology server for the hospital of clinics of Paraguay","authors":"Evelyn Maria Aranda Acuna, José Luis Vázquez Noguera, Cynthia Villalba","doi":"10.1109/CLEI.2018.00108","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00108","url":null,"abstract":"The current process of searching for terminology for medical coding in health standards in the Hospital of Clinics of Paraguay, is done through coding manuals or through the internet of cell phones. This process takes a long time to be done during the medical consultation. The optimization of the current process would allow the search of encoded terminologies during the medical consultation, avoiding that the resident doctors have to perform this extra work after the workday. This work implements a medical terminology server through web services and using the text search engine library: Apache Lucene that is specialized in storage agility and data recovery. The implemented server also allows to perform successful searches of terminologies encoded in standards through friendly or familiar terms. The search time of coded terminologies using the implemented server was compared with the search time of the current process in the hospital of clinics using the internet of cell phones. Under these criteria, the terminology server responds up to 18 times faster than the current search process. In addition, it was made a comparison of the server against a search engine, called Metamorphosys. The terminology server implemented turned out to be quite competitive against Metamorphosys by presenting quite similar response times. Although both tools have a similar average response time, Metamorphosys presents some high atypical values in some algorithms that it presents as search options. The degree of satisfaction of the user in the use of the system was evaluated through a usability questionnaire called “System Usability Scale” (SUS). The evaluation rated the system as “Good” according to the Bangor.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"73 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":"131889834","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}
Although the citizen participation is intended in order to approve fare adjustments on bus service in Costa Rica, poor results have been noticed since the means and/or technical aspects to propose or to oppose such adjustments are complicated, unknown or not available for most population. This research has analyzed two important experiences on e-Participation in Chile and Colombia in order to identify critical factor on distinct dimensions (political, administrative, economic, social and technological). The findings were used to propose a solution for the evaluation of the main transport public service (buses) in Costa Rica that can be used by the Public Authority in this field.
{"title":"A Proposal using an e-Participation Strategy for the Evaluation of Public Transport Service in Costa Rica","authors":"Luis Diego Ramirez-Güell, R. C. Morales","doi":"10.1109/CLEI.2018.00057","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00057","url":null,"abstract":"Although the citizen participation is intended in order to approve fare adjustments on bus service in Costa Rica, poor results have been noticed since the means and/or technical aspects to propose or to oppose such adjustments are complicated, unknown or not available for most population. This research has analyzed two important experiences on e-Participation in Chile and Colombia in order to identify critical factor on distinct dimensions (political, administrative, economic, social and technological). The findings were used to propose a solution for the evaluation of the main transport public service (buses) in Costa Rica that can be used by the Public Authority in this field.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"8 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":"122558914","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}
Maria Renata de Mira Gobbo, C. Barbosa, Fernanda Mafort
Mobile games have been released at all times for leisure, health and education, but it is not common to find games especially, for children's literacy with Autism Spectrum Disorder (ASD), although there is a lot of need for it, since these children have great difficulties in being literate in traditional educational approaches. This work presents an application that is being developed which also contains a game that not only assists in the literacy process of these children, but also teaches them through pictograms for Activities of Daily Living (ADLs), which are routine activities that are performed daily by children with ASD with self-care and personal hygiene functions.
{"title":"An APP Designed for the Literacy of Children with Autistic Spectrum Disorder","authors":"Maria Renata de Mira Gobbo, C. Barbosa, Fernanda Mafort","doi":"10.1109/CLEI.2018.00045","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00045","url":null,"abstract":"Mobile games have been released at all times for leisure, health and education, but it is not common to find games especially, for children's literacy with Autism Spectrum Disorder (ASD), although there is a lot of need for it, since these children have great difficulties in being literate in traditional educational approaches. This work presents an application that is being developed which also contains a game that not only assists in the literacy process of these children, but also teaches them through pictograms for Activities of Daily Living (ADLs), which are routine activities that are performed daily by children with ASD with self-care and personal hygiene functions.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"47 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":"117302072","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}
Manuel Iglesias, L. Guaycochea, Javier Luiso, María Victoria Galán
Nowadays a wide range of rendering techniques are used in computer graphics development, each of them running in a shader program. Techniques combinations force graphics engines to manage a great number of permutations that increase exponencially. In this article we introduce an effects framework to manage orderly, maintainable and extensively all the available shaders, which was developed and integrated with our graphics engine. This solution improves code modularity and reutilization, and consists in an algorithm implementation to generate entires shaders from a set of reusables functions.
{"title":"Shader Framework Implementation for the Management of Multiple Effects","authors":"Manuel Iglesias, L. Guaycochea, Javier Luiso, María Victoria Galán","doi":"10.1109/CLEI.2018.00077","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00077","url":null,"abstract":"Nowadays a wide range of rendering techniques are used in computer graphics development, each of them running in a shader program. Techniques combinations force graphics engines to manage a great number of permutations that increase exponencially. In this article we introduce an effects framework to manage orderly, maintainable and extensively all the available shaders, which was developed and integrated with our graphics engine. This solution improves code modularity and reutilization, and consists in an algorithm implementation to generate entires shaders from a set of reusables functions.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"17 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":"125329144","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}
{"title":"Message from the Chairs - Portuguese","authors":"","doi":"10.1109/clei.2018.00005","DOIUrl":"https://doi.org/10.1109/clei.2018.00005","url":null,"abstract":"","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"41 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":"126736553","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}
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