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  1. Research

    The collaboration network of the Brazilian Symposium on Databases

    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, ...

    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

    Journal of the Brazilian Computer Society 2017 23:10

    Published on: 17 July 2017

  2. Research

    Text mining and semantics: a systematic mapping study

    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...

    Roberta Akemi Sinoara, João Antunes and Solange Oliveira Rezende

    Journal of the Brazilian Computer Society 2017 23:9

    Published on: 29 June 2017

  3. Research

    Improving trend analysis using social network features

    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...

    Caio Cesar Trucolo and Luciano Antonio Digiampietri

    Journal of the Brazilian Computer Society 2017 23:8

    Published on: 7 June 2017

  4. Research

    Ranking lawyers using a social network induced by legal cases

    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 ...

    Leonardo Filipe Rodrigues Ribeiro and Daniel Ratton Figueiredo

    Journal of the Brazilian Computer Society 2017 23:6

    Published on: 4 April 2017

  5. Research

    Techniques for comparing and recommending conferences

    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 ...

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

    Journal of the Brazilian Computer Society 2017 23:4

    Published on: 14 March 2017

  6. Research

    Detecting referential inconsistencies in electronic CV datasets

    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...

    Ivison C. Rubim and Vanessa Braganholo

    Journal of the Brazilian Computer Society 2017 23:3

    Published on: 23 February 2017

  7. Research

    Overview and open issues on penetration test

    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...

    Daniel Dalalana Bertoglio and Avelino Francisco Zorzo

    Journal of the Brazilian Computer Society 2017 23:2

    Published on: 6 February 2017

  8. Research

    Applying graphical oracles to evaluate image segmentation results

    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...

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

    Journal of the Brazilian Computer Society 2017 23:1

    Published on: 19 January 2017

  9. Research

    Redocumenting APIs with crowd knowledge: a coverage analysis based on question types

    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...

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

    Journal of the Brazilian Computer Society 2016 22:9

    Published on: 9 December 2016

  10. Research

    An empirical study of test generation with BETA

    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...

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

    Journal of the Brazilian Computer Society 2016 22:8

    Published on: 28 October 2016

  11. Research

    Solving the maximum subsequence sum and related problems using BSP/CGM model and multi-GPU CUDA

    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...

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

    Journal of the Brazilian Computer Society 2016 22:7

    Published on: 28 October 2016

  12. Research

    Assessing the effectiveness of automated service composition

    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...

    Ramide Dantas, Carlos Kamienski, Stenio Fernandes and Djamel Sadok

    Journal of the Brazilian Computer Society 2016 22:6

    Published on: 12 October 2016

  13. Research

    Some results on extension of lattice-valued QL-implications

    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-...

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

    Journal of the Brazilian Computer Society 2016 22:4

    Published on: 12 August 2016

  14. Original research article

    LODPRO: learning objects development process

    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...

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

    Journal of the Brazilian Computer Society 2016 22:3

    Published on: 19 July 2016

  15. Research

    Bounded model checking for fixed-point digital filters

    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...

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

    Journal of the Brazilian Computer Society 2016 22:1

    Published on: 20 May 2016

  16. Research

    Testing of aspect-oriented programs: difficulties and lessons learned based on theoretical and practical experience

    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...

    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

    Journal of the Brazilian Computer Society 2015 21:20

    Published on: 20 November 2015

  17. Research

    A hybrid particle swarm optimization and harmony search algorithm approach for multi-objective test case selection

    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...

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

    Journal of the Brazilian Computer Society 2015 21:19

    Published on: 10 November 2015

  18. Research

    Complexity of greedy edge-colouring

    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...

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

    Journal of the Brazilian Computer Society 2015 21:18

    Published on: 9 November 2015

  19. Research

    Utterance copy through analysis-by-synthesis using genetic algorithm

    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...

    Fabíola Araújo, Aldebaro Klautau and José Filho

    Journal of the Brazilian Computer Society 2015 21:17

    Published on: 8 October 2015

  20. Research

    Improving workflow design by mining reusable tasks

    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...

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

    Journal of the Brazilian Computer Society 2015 21:16

    Published on: 5 October 2015

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