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  1. 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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  2. 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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  3. 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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  4. 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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  5. 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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  6. 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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  7. 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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  8. 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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  9. 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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  10. 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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  11. 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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  12. 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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  13. 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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  14. 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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  15. 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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  16. 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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  17. 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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  18. Content type: Research

    Ad Networks connect advertisers to websites that want to host advertisements. When users request websites, the Ad Network decides which ad to send so as to maximize the number of ads that are clicked by users....

    Authors: Valdinei Freire, Flávio Sales Truzzi, Anna Helena Reali Costa and Fabio Gagliardi Cozman

    Citation: Journal of the Brazilian Computer Society 2015 21:13

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  19. Content type: Research

    Nowadays, systems involving multiple FPGAs are used for various scientific applications. Such systems require a data bus dedicated to the communication between FPGAs, which could be done through a LVDS type. A...

    Authors: LT Melo, SHC Santana, AG Silva-Filho, ME Lima, VWC Medeiros and MLM Marinho

    Citation: Journal of the Brazilian Computer Society 2015 21:12

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  20. Content type: Research

    This paper studies the generalized probabilistic satisfiability (GPSAT) problem, where the probabilistic satisfiability (PSAT) problem is extended by allowing Boolean combinations of probabilistic assertions a...

    Authors: Glauber De Bona, Fabio G. Cozman and Marcelo Finger

    Citation: Journal of the Brazilian Computer Society 2015 21:11

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  21. Content type: Research

    This paper presents a policy to choose cutoff points to identify potentially relevant terms in a given domain. Term extraction methods usually generate term lists ordered according to a relevance criteria, and...

    Authors: Lucelene Lopes and Renata Vieira

    Citation: Journal of the Brazilian Computer Society 2015 21:9

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  22. Content type: Research

    Parallel processing in the era of many-core processors demands high-performance networks-on-chip and parallel communication based on intra-chip message passing. In this context, wireless networks-on-chip (WiNo...

    Authors: Amanda M.P. Amorim, Poliana A.C. Oliveira and Henrique C. Freitas

    Citation: Journal of the Brazilian Computer Society 2015 21:6

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  23. Content type: Research

    This paper presents how to improve model reduction for Markov decision process (MDP), a technique that generates equivalent MDPs that can be smaller than the original MDP. In order to improve the current state...

    Authors: Felipe M Santos, Leliane N Barros and Felipe W Trevizan

    Citation: Journal of the Brazilian Computer Society 2015 21:5

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  24. Content type: Research

    Open Information Extraction (Open IE) aims to obtain not predefined, domain-independent relations from text. This article introduces the Open IE research field, thoroughly discussing the main ideas and systems...

    Authors: Clarissa Castellã Xavier, Vera Lúcia Strube de Lima and Marlo Souza

    Citation: Journal of the Brazilian Computer Society 2015 21:4

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