Emilio Luis Faria Rodrigues, Augusto Soares da Silva, S. Rigo, D. A. Araújo
Accelerated growth of Linked Open Data has been observed. There are several motives for this. Some situations are the generation of these bases from texts, another is the amount of open data generated from information systems. Their growth results in a large volume of information available. This fact brings the possibility of large-scale use in question-and-answer systems. Which have a general function that is based on a structure of information to generate phrases and to conference of produced answers. From literature studies, we foresee an opportunity of bigger use, in several applications. It is possible to generate natural language phrases from linked open databases, in Portuguese. In addition, we identified challenges to effective applicate linked open data resources for this purpose effectively. In this way, this work aims to see which aspects of the structure of open linked databases could be used as support in generating natural language questions.
{"title":"Natural Language Question Generation from Connected Open Data: A Study of Possibilities","authors":"Emilio Luis Faria Rodrigues, Augusto Soares da Silva, S. Rigo, D. A. Araújo","doi":"10.1109/CLEI.2018.00066","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00066","url":null,"abstract":"Accelerated growth of Linked Open Data has been observed. There are several motives for this. Some situations are the generation of these bases from texts, another is the amount of open data generated from information systems. Their growth results in a large volume of information available. This fact brings the possibility of large-scale use in question-and-answer systems. Which have a general function that is based on a structure of information to generate phrases and to conference of produced answers. From literature studies, we foresee an opportunity of bigger use, in several applications. It is possible to generate natural language phrases from linked open databases, in Portuguese. In addition, we identified challenges to effective applicate linked open data resources for this purpose effectively. In this way, this work aims to see which aspects of the structure of open linked databases could be used as support in generating natural language questions.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"16 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":"114968927","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}
This paper introduces a novel application for augmented reality in which it is possible to learn how to play the guitar for a beginner level. It was developed for the Hololens device, following the Suzuki method for instructing the first lesson of the instrument. This prototype utilizes a 2D marker, using the video game engine Unity3D. The prototype was tested comparing the learning experience it offered to the one of a non-immersive learning methodology. As a result, the study did not show any considerable difference between the two methods, but it revealed learners' acceptance towards the augmented reality teaching tool, and it showed information which could be considered to define the research approach for the following stages of the project. It is still necessary to implement several design and functionality improvements to the initial prototype for a new process iteration.
{"title":"Learning How to Play a Guitar with the HoloLens: A Case Study","authors":"Carlos Torres, P. Figueroa","doi":"10.1109/CLEI.2018.00078","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00078","url":null,"abstract":"This paper introduces a novel application for augmented reality in which it is possible to learn how to play the guitar for a beginner level. It was developed for the Hololens device, following the Suzuki method for instructing the first lesson of the instrument. This prototype utilizes a 2D marker, using the video game engine Unity3D. The prototype was tested comparing the learning experience it offered to the one of a non-immersive learning methodology. As a result, the study did not show any considerable difference between the two methods, but it revealed learners' acceptance towards the augmented reality teaching tool, and it showed information which could be considered to define the research approach for the following stages of the project. It is still necessary to implement several design and functionality improvements to the initial prototype for a new process iteration.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"75 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":"115156809","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}
This article presents an implementation, based on model-driven development, that supports mutation testing techniques for the evaluation of test cases. The mutation of the code is carried out through a process of model transformations that starts with a transformation of a JAVA program to a representation of it in XMI, which satisfies the requirements of the JAVA metamodel. Later, mutation rules are applied to the model by means of a transformation, model by model, to generate a mutated version of the original program. Finally, JAVA code mutated again through a transformation, model to text, defined with MOF2Text. This last version is the one used to experiment with the different test cases. The main contribution of this work is the proposal of a mutation mechanism of JAVA programs that makes use of existing standards and tools in the context of model-driven development.
{"title":"Mutation Testing for Java Based on Model-Driven Development","authors":"Ariel Gonzalez, C. Luna, G. Bressan","doi":"10.1109/CLEI.2018.00011","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00011","url":null,"abstract":"This article presents an implementation, based on model-driven development, that supports mutation testing techniques for the evaluation of test cases. The mutation of the code is carried out through a process of model transformations that starts with a transformation of a JAVA program to a representation of it in XMI, which satisfies the requirements of the JAVA metamodel. Later, mutation rules are applied to the model by means of a transformation, model by model, to generate a mutated version of the original program. Finally, JAVA code mutated again through a transformation, model to text, defined with MOF2Text. This last version is the one used to experiment with the different test cases. The main contribution of this work is the proposal of a mutation mechanism of JAVA programs that makes use of existing standards and tools in the context of model-driven development.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"809 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":"123290288","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}
A. S., Monserrat Mora B., L. R., D. Pinto-Roa, J. N.
{"title":"Analysis of the Image Quality in a Multiobjective Context Based on SMPSO-CLAHE","authors":"A. S., Monserrat Mora B., L. R., D. Pinto-Roa, J. N.","doi":"10.1109/clei.2018.00082","DOIUrl":"https://doi.org/10.1109/clei.2018.00082","url":null,"abstract":"","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"26 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":"123957177","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 - English","authors":"","doi":"10.1109/clei.2018.00006","DOIUrl":"https://doi.org/10.1109/clei.2018.00006","url":null,"abstract":"","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"38 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":"123143005","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}
In this paper we presente a systematic review of the literature with the objective of identifying playful practices used in educational games. From this result, began the construction of a catalog of playful practices to support the development of educational games. Our research is focused initially on the area of Software Engineering. However, the structure of the systematic review and the catalog under development can be extended to other areas. With a traceable structure among the key elements of the catalog (play practices, levels of knowledge and contents), we try to present a practical reference material for developers of educational games or even for teachers who want to apply recreational activities in the classroom. The catalog under construction is available on a wiki in order to enable it to grow collaboratively. In addition to the results of the systematic review, this article also presents an initial version of the catalog of playful practices.
{"title":"Ludic Practices to Support the Development of Software Engineering Educational Games: A Systematic Review","authors":"Cláudia Zambon, M. Thiry","doi":"10.1109/CLEI.2018.00100","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00100","url":null,"abstract":"In this paper we presente a systematic review of the literature with the objective of identifying playful practices used in educational games. From this result, began the construction of a catalog of playful practices to support the development of educational games. Our research is focused initially on the area of Software Engineering. However, the structure of the systematic review and the catalog under development can be extended to other areas. With a traceable structure among the key elements of the catalog (play practices, levels of knowledge and contents), we try to present a practical reference material for developers of educational games or even for teachers who want to apply recreational activities in the classroom. The catalog under construction is available on a wiki in order to enable it to grow collaboratively. In addition to the results of the systematic review, this article also presents an initial version of the catalog of playful practices.","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":"114842776","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}
Many engineering programs place in their curricula some courses in Computer Programming, whose content and quality are generally less rigorous than their Computer Science equivalents. Most use the C language as development tool, but the approach applies more effort in describing the language's peculiarities than exploiting the practical applications in engineering endeavors. The contributed programming techniques are born from the experience of teaching Functional Programming, embodied in headers that enhance depth and rigorousness in the development of high quality code: (i) Functional emphasis from the beginning; (ii) Formal Specifications with exception generation; (iii) Early focus in recursion, particularly tail recursion; (iv) Development of Abstract Data Types using C's opaque types; (v) Incorporation of First Order and Higher Order Functions; (vi) Efficient dynamic memory management using a "garbage collector"; (vii) Using and Integrated Developed Environment (IDE) with embedded debugger. The aforementioned headers are attached at the end of the article.
{"title":"A Functional Paradigm using the C Language for Teaching Programming for Engineers","authors":"Víctor Theoktisto","doi":"10.1109/CLEI.2018.00103","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00103","url":null,"abstract":"Many engineering programs place in their curricula some courses in Computer Programming, whose content and quality are generally less rigorous than their Computer Science equivalents. Most use the C language as development tool, but the approach applies more effort in describing the language's peculiarities than exploiting the practical applications in engineering endeavors. The contributed programming techniques are born from the experience of teaching Functional Programming, embodied in headers that enhance depth and rigorousness in the development of high quality code: (i) Functional emphasis from the beginning; (ii) Formal Specifications with exception generation; (iii) Early focus in recursion, particularly tail recursion; (iv) Development of Abstract Data Types using C's opaque types; (v) Incorporation of First Order and Higher Order Functions; (vi) Efficient dynamic memory management using a \"garbage collector\"; (vii) Using and Integrated Developed Environment (IDE) with embedded debugger. The aforementioned headers are attached at the end of the article.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"93 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":"126213834","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}
Diórgenes Yuri Leal da Rosa, R. Almeida, R. Machado, A. Yamin, A. Pernas
The typical infrastructures of Ubiquitous Computing assume characteristics of flexibility regarding the connectivity in the environments. Aiming security in these scenarios, several solutions are deployed in its own syntax languages, providing events in different formats. In this sense, Situation Awareness, as a strategy capable of integrating events from different sources, becomes a requirement for the controls implementation. This work proposes an ontological approach to SA applied to the information security domain, called EXEHDA-SO. The proposal was evaluated based on a real infrastructure, showing itself capable of handling heterogeneous events from different contextual source.
{"title":"An Ontological Approach to Situational Awareness Applied to Information Security","authors":"Diórgenes Yuri Leal da Rosa, R. Almeida, R. Machado, A. Yamin, A. Pernas","doi":"10.1109/CLEI.2018.00091","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00091","url":null,"abstract":"The typical infrastructures of Ubiquitous Computing assume characteristics of flexibility regarding the connectivity in the environments. Aiming security in these scenarios, several solutions are deployed in its own syntax languages, providing events in different formats. In this sense, Situation Awareness, as a strategy capable of integrating events from different sources, becomes a requirement for the controls implementation. This work proposes an ontological approach to SA applied to the information security domain, called EXEHDA-SO. The proposal was evaluated based on a real infrastructure, showing itself capable of handling heterogeneous events from different contextual source.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"101 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":"128147620","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}
Raphael Leite Serapião, J. V. Ramos, Anita Maria da Rocha Fernandes
Real-time visualization of volumetric data sets demands high computational performance and large in-memory storage capacity. With the technological advance, the means used to acquire these sets, such as Computed Tomography or Magnetic Resonance Imaging, underwent improvements that resulted in a significant increase of the amount of information collected per sample, making it necessary to develop techniques to generate the visualization of this large quantity of information. The research presents in this paper has the purpose to develop a three-dimensional visualization tool to represent in real time volumetric data with the size of hundreds of megabytes. This tool is based on the ray casting algorithm using graphical acceleration features. To achieve this goal, a methodology was used that involved dividing the volume of data into smaller parts, compatible with the memory limitation of the video hardware. Then the data is used to compose a high quality final image representing the information contained in the volume. In order to evaluate and validate this methodology, comparative tests are performed between the standard rendering procedure and the procedure used in this research.
{"title":"Multiple-Volume Volumetric Rendering Using Graphic Accelerator","authors":"Raphael Leite Serapião, J. V. Ramos, Anita Maria da Rocha Fernandes","doi":"10.1109/CLEI.2018.00079","DOIUrl":"https://doi.org/10.1109/CLEI.2018.00079","url":null,"abstract":"Real-time visualization of volumetric data sets demands high computational performance and large in-memory storage capacity. With the technological advance, the means used to acquire these sets, such as Computed Tomography or Magnetic Resonance Imaging, underwent improvements that resulted in a significant increase of the amount of information collected per sample, making it necessary to develop techniques to generate the visualization of this large quantity of information. The research presents in this paper has the purpose to develop a three-dimensional visualization tool to represent in real time volumetric data with the size of hundreds of megabytes. This tool is based on the ray casting algorithm using graphical acceleration features. To achieve this goal, a methodology was used that involved dividing the volume of data into smaller parts, compatible with the memory limitation of the video hardware. Then the data is used to compose a high quality final image representing the information contained in the volume. In order to evaluate and validate this methodology, comparative tests are performed between the standard rendering procedure and the procedure used in this research.","PeriodicalId":379986,"journal":{"name":"2018 XLIV Latin American Computer Conference (CLEI)","volume":"2 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":"127916277","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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