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  1. Content type: Research

    Open-source software (OSS) communities leverage the workforce of volunteers to keep the projects sustainable. Some companies support OSS projects by paying developers to contribute to them, while others share ...

    Authors: Luis Felipe Dias, Igor Steinmacher and Gustavo Pinto

    Citation: Journal of the Brazilian Computer Society 2018 24:16

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  2. Content type: Research

    The increasing interest in using the Web as a platform for data sharing has motivated research about publishing and consuming data on the Web. While this subject is gaining importance, up until now, there are ...

    Authors: Helton Douglas A. dos Santos, Marcelo Iury S. Oliveira, Glória de Fátima A. B. Lima, Karina Moura da Silva, Rayelle I. Vera Cruz S. Muniz and Bernadette Farias Lóscio

    Citation: Journal of the Brazilian Computer Society 2018 24:14

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  3. Content type: Research

    Developers often have to locate design problems in the source code. Several types of design problems may manifest as code smells in the program. A code smell is a source code structure that may reveal a partia...

    Authors: Willian Oizumi, Leonardo Sousa, Anderson Oliveira, Alessandro Garcia, Anne Benedicte Agbachi, Roberto Oliveira and Carlos Lucena

    Citation: Journal of the Brazilian Computer Society 2018 24:13

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  4. Content type: Research

    In the last years, learning from data streams has attracted the attention of researchers and practitioners due to its large number of applications. These applications have motivated the research community to p...

    Authors: André G. Maletzke, Denis M. dos Reis and Gustavo E. A. P. A. Batista

    Citation: Journal of the Brazilian Computer Society 2018 24:12

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  5. Content type: Research

    Update summarization aims at automatically producing a summary for a collection of texts for a reader that has already read some previous texts about the subject of interest. It is a challenging task, since it...

    Authors: Fernando Antônio Asevedo Nóbrega and Thiago Alexandre Salgueiro Pardo

    Citation: Journal of the Brazilian Computer Society 2018 24:11

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  6. Content type: Research

    This paper presents a study of rates of dropout from Brazilian degree courses, based on data provided by the National Institute for Educational Studies and Research “Anísio Teixeira” (INEP) and a case study ca...

    Authors: Raphael Magalhães Hoed, Marcelo Ladeira and Leticia Lopes Leite

    Citation: Journal of the Brazilian Computer Society 2018 24:10

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  7. Content type: Research

    In most practical multimedia applications, processes are used to manipulate the image content. These processes include compression, transmission, or restoration techniques, which often create distortions that ...

    Authors: Pedro Garcia Freitas, Welington Y. L. Akamine and Mylène C. Q. Farias

    Citation: Journal of the Brazilian Computer Society 2018 24:9

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  8. Content type: Research

    Constructing models that allow for iterated changes is one of the most studied problems in the literature on belief change. However, up to now, iteration of expansion was only studied as a special case of cons...

    Authors: Eduardo Fermé and Renata Wassermann

    Citation: Journal of the Brazilian Computer Society 2018 24:8

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  9. Content type: Research

    In social network analysis, the detection of communities—composed of people with common interests—is a classical problem. Moreover, people can somehow influence any other in the community, i.e., they can sprea...

    Authors: Victor Ströele, Renato Crivano, Geraldo Zimbrão, Jano M. Souza, Fernanda Campos, José Maria N. David and Regina Braga

    Citation: Journal of the Brazilian Computer Society 2018 24:6

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  10. Content type: Research

    Composite materials are being successfully used in aeronautics for more than two decades. This great success is mainly because this kind of materials is typically lighter when compared to metals and more resis...

    Authors: Henrique Fernandes, Hai Zhang, Alisson A.A. Figueiredo, Fernando Malheiros, Luis Henrique Ignaicio, Clemente Ibarra-Castanedo and Xavier Maldague

    Citation: Journal of the Brazilian Computer Society 2018 24:7

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  11. Content type: Research

    Individuals with visual impairment face varied challenges when attending education programs in many fields and levels. In computing education programs, the frequent required use of charts, graphs, and diagrams...

    Authors: Leandro Luque, Leônidas O. Brandão, Elisabeti Kira and Anarosa A. F. Brandão

    Citation: Journal of the Brazilian Computer Society 2018 24:4

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  12. Content type: Research

    The aspect-oriented requirements engineering (AORE) area intends to provide more appropriated strategies for software concern identification, classification (as crosscutting or non-crosscutting), and modulariz...

    Authors: Paulo Afonso Parreira Júnior and Rosângela Aparecida Dellosso Penteado

    Citation: Journal of the Brazilian Computer Society 2018 24:3

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  13. Content type: Research

    Input/output (I/O) attacks have received increasing attention during the last decade. These attacks are performed by malicious peripherals that make read or write accesses to DRAM memory or to memory embedded ...

    Authors: Benoît Morgan, Éric Alata, Vincent Nicomette and Mohamed Kaâniche

    Citation: Journal of the Brazilian Computer Society 2018 24:2

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  14. Content type: Research

    The class of robot convergence tasks has been shown to capture fundamental aspects of fault-tolerant computability. A set of asynchronous robots that may fail by crashing, start from unknown places in some given ...

    Authors: Armando Castañeda, Sergio Rajsbaum and Matthieu Roy

    Citation: Journal of the Brazilian Computer Society 2018 24:1

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  15. Content type: Research

    Reliable broadcast is a fundamental building block in fault-tolerant distributed systems. It consists of a basic primitive that provides agreement among processes of the system on the delivery of each broadcas...

    Authors: Denis Jeanneau, Luiz A. Rodrigues, Luciana Arantes and Elias P. Duarte Jr.

    Citation: Journal of the Brazilian Computer Society 2017 23:15

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  16. Content type: Research

    Businesses are nowadays deploying their services online, reaching out to clients all around the world. Many times deployed as web applications or web services, these business-critical systems typically perform...

    Authors: Nuno Laranjeiro, Seyma Nur Soydemir, Naghmeh Ivaki and Jorge Bernardino

    Citation: Journal of the Brazilian Computer Society 2017 23:14

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  17. Content type: Research

    Systems-of-systems (SoS) are alliances of independent and interoperable software-intensive systems. SoS often support critical domains, being required to exhibit a reliable operation, specially because people’...

    Authors: Valdemar Vicente Graciano Neto, Carlos Eduardo Barros Paes, Lina Garcés, Milena Guessi, Wallace Manzano, Flavio Oquendo and Elisa Yumi Nakagawa

    Citation: Journal of the Brazilian Computer Society 2017 23:13

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  18. Content type: Research

    Due to the abstract nature of software architecture concepts, ensuring the correct implementation of architectural decisions is not a trivial task. Divergences between the planned architecture and source code ...

    Authors: Henrique Rocha, Rafael Serapilha Durelli, Ricardo Terra, Sândalo Bessa and Marco Túlio Valente

    Citation: Journal of the Brazilian Computer Society 2017 23:12

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  19. Content type: Research

    Release planning (RP) is one of the most complex and relevant activities in the iterative and incremental software development, because it addresses all decisions associated with the selection and assignment o...

    Authors: Raphael Saraiva, Allysson Allex Araújo, Altino Dantas, Italo Yeltsin and Jerffeson Souza

    Citation: Journal of the Brazilian Computer Society 2017 23:11

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  20. Content type: Research

    The Brazilian Symposium on Databases (SBBD) celebrated its 30th edition in October 2015. As the database community has evolved over the years, so has the data analysis area. To celebrate such accomplishments, ...

    Authors: Lucas Henrique Costa de Lima, Gustavo Penha, Laís Mota de Alencar Rocha, Mirella M. Moro, Ana Paula Couto da Silva, Alberto H. F. Laender and José Palazzo M. de Oliveira

    Citation: Journal of the Brazilian Computer Society 2017 23:10

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  21. Content type: Research

    As text semantics has an important role in text meaning, the term semantics has been seen in a vast sort of text mining studies. However, there is a lack of studies that integrate the different research branch...

    Authors: Roberta Akemi Sinoara, João Antunes and Solange Oliveira Rezende

    Citation: Journal of the Brazilian Computer Society 2017 23:9

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  22. Content type: Research

    In recent years, large volumes of data have been massively studied by researchers and organizations. In this context, trend analysis is one of the most important areas. Typically, good prediction results are h...

    Authors: Caio Cesar Trucolo and Luciano Antonio Digiampietri

    Citation: Journal of the Brazilian Computer Society 2017 23:8

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  23. Content type: Research

    Recommender systems help users to deal with the information overload problem by producing personalized content according to their interests. Beyond the traditional recommender strategies, there is a growing ef...

    Authors: Rafael M. D’Addio, Marcos A. Domingues and Marcelo G. Manzato

    Citation: Journal of the Brazilian Computer Society 2017 23:7

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  24. Content type: Research

    Who are the most effective lawyers in the Labor Court of Rio de Janeiro? Using data from tens of thousands of legal cases, we construct a network of lawyers (directed and weighted) in order to answer this and ...

    Authors: Leonardo Filipe Rodrigues Ribeiro and Daniel Ratton Figueiredo

    Citation: Journal of the Brazilian Computer Society 2017 23:6

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  25. Content type: Research

    This article defines, implements, and evaluates techniques to automatically compare and recommend conferences. The techniques for comparing conferences use familiar similarity measures and a new measure based ...

    Authors: Grettel Monteagudo García, Bernardo Pereira Nunes, Giseli Rabello Lopes, Marco Antonio Casanova and Luiz André P. Paes Leme

    Citation: Journal of the Brazilian Computer Society 2017 23:4

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  26. Content type: Research

    One way to measure the scientific progress of a country is to evaluate the curriculum vitae (CV) of its researchers. In Brazil, this is not different. The Lattes Platform is an information system whose primary...

    Authors: Ivison C. Rubim and Vanessa Braganholo

    Citation: Journal of the Brazilian Computer Society 2017 23:3

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  27. Content type: Research

    Several studies regarding security testing for corporate environments, networks, and systems were developed in the past years. Therefore, to understand how methodologies and tools for security testing have evo...

    Authors: Daniel Dalalana Bertoglio and Avelino Francisco Zorzo

    Citation: Journal of the Brazilian Computer Society 2017 23:2

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  28. Content type: Research

    Segmentation plays an important role in the pattern recognition and image processing areas. Several techniques have been proposed aiming at solving generic issues or particular applications. Traditionally, the...

    Authors: Vagner M. Gonçalves, Marcio E. Delamaro and Fátima L. S. Nunes

    Citation: Journal of the Brazilian Computer Society 2017 23:1

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  29. Content type: Research

    Software libraries and frameworks play an important role in software system development. The appropriate usage of their functionalities/components through their APIs, however, is a challenge for developers. Us...

    Authors: Fernanda Madeiral Delfim, Klérisson V. R. Paixão, Damien Cassou and Marcelo de Almeida Maia

    Citation: Journal of the Brazilian Computer Society 2016 22:9

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  30. Content type: Research

    The maximum subsequence problem finds a contiguous subsequence of the largest sum of a sequence of n numbers. Solutions to this problem are used in various branches of science, especially in applications of compu...

    Authors: Anderson C. Lima, Rodrigo G. Branco, Samuel Ferraz, Edson N. Cáceres, Roussian A. Gaioso, Wellington S. Martins and Siang W. Song

    Citation: Journal of the Brazilian Computer Society 2016 22:7

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  31. Content type: Research

    BETA (Bbased testing approach) is a toolsupported approach to generate test cases from Bmethod specifications through the application of input space partitioning and logical coverage criteria. The BETA tool au...

    Authors: Ernesto C. B. de Matos, Anamaria M. Moreira and João B. de Souza Neto

    Citation: Journal of the Brazilian Computer Society 2016 22:8

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  32. Content type: Research

    Service Composition is an important feature of Service Oriented Computing, yet it remains mostly a manual process. Given the dynamic and decentralized nature of services, manual composition is a complex undert...

    Authors: Ramide Dantas, Carlos Kamienski, Stenio Fernandes and Djamel Sadok

    Citation: Journal of the Brazilian Computer Society 2016 22:6

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  33. Content type: Research

    In this paper, we present a method for protecting and restoring lost or tampered information in images or videos using secure watermarks. The proposed method consists of a combination of techniques that are ab...

    Authors: Pedro Garcia Freitas, Ronaldo Rigoni and Mylène C. Q. Farias

    Citation: Journal of the Brazilian Computer Society 2016 22:5

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  34. Content type: Research

    A very important issue in lattice theory is how to extend a given operator preserving its algebraic properties. For lattice-valued fuzzy operators framework, in 2008 Saminger-Platz presented a way to extend t-...

    Authors: Eduardo S. Palmeira, Benjamín R.C. Bedregal and José Anchieta G. dos Santos

    Citation: Journal of the Brazilian Computer Society 2016 22:4

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  35. Content type: Original research article

    Research concerning to the use of technology in education has received increasing attention from scholars in recent years. This attention has resulted in new educational materials demanding creative ways to pl...

    Authors: Leandro Marques Queiros, Denis Silva da Silveira, Jorge da Silva Correia-Neto and Guilherme Vilar

    Citation: Journal of the Brazilian Computer Society 2016 22:3

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  36. Content type: Research

    Recent national developments in alert systems are the main motivation of this work. The aim is to provide an account on the development and first tests of a new Meteorological Alert System—MAS for mobile devic...

    Authors: Ademir L. Xavier Jr, Daniel Bonatti and Sergio Celaschi

    Citation: Journal of the Brazilian Computer Society 2016 22:2

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  37. Content type: Research

    Currently, digital filters are employed in a wide range of signal processing applications, using fixed- and floating-point processors. Regarding the former, some filter implementations may be highly prone to e...

    Authors: Renato B. Abreu, Mikhail Y. R. Gadelha, Lucas C. Cordeiro, Eddie B. de Lima Filho and Waldir S. da Silva Jr

    Citation: Journal of the Brazilian Computer Society 2016 22:1

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  38. Content type: Research

    This paper presents research of an application of a latent semantic analysis (LSA) model for the automatic evaluation of short answers (25 to 70 words) to open-ended questions. In order to reach a viable appli...

    Authors: João Carlos Alves dos Santos and Eloi Luiz Favero

    Citation: Journal of the Brazilian Computer Society 2015 21:21

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  39. Content type: Research

    Since the first discussions of new challenges posed by aspect-oriented programming (AOP) to software testing, the real difficulties of testing aspect-oriented (AO) programs have not been properly analysed. Fir...

    Authors: Fabiano C. Ferrari, Bruno B. P. Cafeo, Thiago G. Levin, Jésus T. S. Lacerda, Otávio A. L. Lemos, José C. Maldonado and Paulo C. Masiero

    Citation: Journal of the Brazilian Computer Society 2015 21:20

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  40. Content type: Research

    Test case (TC) selection is considered a hard problem, due to the high number of possible combinations to consider. Search-based optimization strategies arise as a promising way to treat this problem, as they exp...

    Authors: Luciano Soares de Souza, Ricardo Bastos Cavalcante Prudêncio and Flávia A. de Barros

    Citation: Journal of the Brazilian Computer Society 2015 21:19

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  41. Content type: Research

    The Grundy index of a graph G =(V, E) is the greatest number of colours that the greedy edge-colouring algorithm can use on G. We prove that the problem of determining the Grundy index of a graph G=(V, E) is NP-h...

    Authors: Frédéric Havet, A. Karolinna Maia and Min-Li Yu

    Citation: Journal of the Brazilian Computer Society 2015 21:18

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  42. Content type: Research

    Utterance copy consists in estimating the input parameters to reconstruct a speech signal using a speech synthesizer. This process is distinct from the more traditional text-to-speech but yet used in many area...

    Authors: Fabíola Araújo, Aldebaro Klautau and José Filho

    Citation: Journal of the Brazilian Computer Society 2015 21:17

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  43. Content type: Research

    With the increasing popularity of scientific workflow management systems (SWfMS), more and more workflow specifications are becoming available. Such specifications contain precious knowledge that can be reused...

    Authors: Frederico E. Tosta, Vanessa Braganholo, Leonardo Murta and Marta Mattoso

    Citation: Journal of the Brazilian Computer Society 2015 21:16

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  44. Content type: Research

    Developers commonly affirm that writing unit tests improve internal quality of a software, besides a more obvious effect on external quality. This is particularly common among Test-Driven Development (TDD) pac...

    Authors: Maurício Aniche and Marco Aurélio Gerosa

    Citation: Journal of the Brazilian Computer Society 2015 21:15

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  45. Content type: Research

    After graduating and starting a career as a professor, a young researcher usually finds him/herself lost due to a huge amount of new obligations and opportunities. Choosing the best strategy to guide his/her c...

    Authors: Arilo C. Dias-Neto, Rafael Prikladnicki, Márcio de O. Barros and Leonardo G. P. Murta

    Citation: Journal of the Brazilian Computer Society 2015 21:14

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  46. Content type: Research

    Video on demand (VoD) is a fast-growing digital service that requires a substantial amount of hardware resources for its implementation. To reduce the costs of running this service, an alternative is to use pr...

    Authors: Bruno S Neves, Anderson S Venturini and Altamiro A Susin

    Citation: Journal of the Brazilian Computer Society 2015 21:8

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  47. Content type: Research

    Systems are considered legacy when their maintenance costs raise to unmanageable levels, but they still deliver valuable benefits for companies. One intrinsic problem of this kind of system is the presence of ...

    Authors: Daniel San Martín Santibáñez, Rafael Serapilha Durelli and Valter Vieira de Camargo

    Citation: Journal of the Brazilian Computer Society 2015 21:10

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