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  1. With the increasing popularity of web-based map browsers, remotely obtaining a high quality depiction of cartographic information has become commonplace. Most web mapping systems, however, rely on high-capacit...

    Authors: José Augusto Sapienza Ramos, Claudio Esperança and Esteban Walter Gonzales Clua

    Citation: Journal of the Brazilian Computer Society 2009 15:BF03194500

    Content type: OriginalPaper

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  2. Geographic Data Warehouses (GDW) are one of the main technologies used in decision-making processes and spatial analysis, and the literature proposes several conceptual and logical data models for GDW. However...

    Authors: Thiago Luís Lopes Siqueira, Cristina Dutra de Aguiar Ciferri, Valéria Cesário Times, Anjolina Grisi de Oliveira and Ricardo Rodrigues Ciferri

    Citation: Journal of the Brazilian Computer Society 2009 15:BF03194499

    Content type: OriginalPaper

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  3. The analysis of volumetric datasets is the main concern in many areas ranging from geophysics to biomedical sciences. The direct visualization of these data plays an important role in this scenario, and in spi...

    Authors: Rafael Huff, Roberto Silveira da Rosa, Luciana Nedel and Carla Maria Dal Sasso Freitas

    Citation: Journal of the Brazilian Computer Society 2009 15:BF03194498

    Content type: OriginalPaper

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  4. Mobile phones are a widespread platform for ICT applications because they are highly pervasive in contemporary society. Hence, we can think of mobile gaming as a serious candidate to being a prominent form of ...

    Authors: Luis Valente, Clarisse Sieckenius de Souza and Bruno Feijó

    Citation: Journal of the Brazilian Computer Society 2009 15:BF03192576

    Content type: OriginalPaper

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  5. Semantic portals are characterized for storing and structuring content according to specific domain ontologies. This content is represented through ontological languages, which enable not only adding semantic ...

    Authors: Fernanda Aparecida Lachtim, Ana Maria de Carvalho Moura and Maria Cláudia Cavalcanti

    Citation: Journal of the Brazilian Computer Society 2009 15:BF03192575

    Content type: OriginalPaper

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  6. The quest for interoperability is one of the main driving forces behind international organizations such as OGC and W3C. In parallel, a trend in systems design and development is to break down GIS functionalit...

    Authors: Gilberto Zonta Pastorello, Rodrigo Dias Arruda Senra and Claudia Bauzer Medeiros

    Citation: Journal of the Brazilian Computer Society 2009 15:BF03192574

    Content type: OriginalPaper

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  7. Due to the imprecise nature of biological experiments, biological data is often characterized by the presence of redundant and noisy data. This may be due to errors that occurred during data collection, such a...

    Authors: Giampaolo Luiz Libralon, André Carlos Ponce de Leon Ferreira de Carvalho and Ana Carolina Lorena

    Citation: Journal of the Brazilian Computer Society 2009 15:BF03192573

    Content type: OriginalPaper

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  8. The potential loss of privacy due to the use of location based applications may be one of the greatest obstacles to their wider acceptance. Nevertheless, most research about privacy management to-date has not ...

    Authors: Vagner Sacramento, Markus Endler and Clarisse de Souza

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192571

    Content type: OriginalPaper

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  9. We present evaluation results with focus on combined image and efficiency performance of the Gradient Network Method to segment color images, especially images showing outdoor scenes. A brief review of the tec...

    Authors: Aldo von Wangenheim, Rafael F. Bertoldi, Daniel D. Abdala, Michael M. Richter, Lutz Priese and Frank Schmitt

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192570

    Content type: OriginalPaper

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  10. We present Entropy Guided Transformation Learning models for three Portuguese Language Processing tasks: Part-of-Speech Tagging, Noun Phrase Chunking and Named Entity Recognition. For Part-of-Speech Tagging, w...

    Authors: Ruy Luiz Milidiú, Cícero Nogueira dos Santos and Julio Cesar Duarte

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192569

    Content type: OriginalPaper

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  11. This paper addresses the capacitated lot sizing problem (CLSP) with a single stage composed of multiple plants, items and periods with setup carry-over among the periods. The CLSP is well studied and many heur...

    Authors: Mariá C. V. Nascimento and Franklina M. B. Toledo

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192568

    Content type: OriginalPaper

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  12. This article describes the design, implementation, and experiences with AcMus, an open and integrated software platform for room acoustics research, which comprises tools for measurement, analysis, and simulat...

    Authors: Marcelo Queiroz, Fernando Iazzetta, Fabio Kon, Márcio Henrique A. Gomes, Fábio L. Figueiredo, Bruno Masiero, Leo K. Ueda, Luciana Dias, Mário Henrique C. Torres and Leandro F. Thomaz

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192566

    Content type: OriginalPaper

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  13. A pitch model is proposed which is supported by a vector representation of tones. First, an algorithm capable of performing the vector addition of the spectral components of two-tone harmonic complexes is intr...

    Authors: Aluizio Arcela

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192565

    Content type: OriginalPaper

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  14. Two implementations of an Evolutionary Sound Synthesis method using the Interaural Time Difference (ITD) and psychoacoustic descriptors are presented here as a way to develop criteria for fitness evaluation. W...

    Authors: José Fornari, Adolfo Maia and Jônatas Manzolli

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192564

    Content type: OriginalPaper

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  15. CinBalada is a system for automatic creation of polyphonic rhythmic performances by mixing elements from different musical styles. This system is based on agents that act as musicians playing percussion instru...

    Authors: Pablo Azevedo Sampaio, Geber Ramalho and Patrícia Tedesco

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192563

    Content type: OriginalPaper

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  16. The goal of this paper is to describe a systemaided performance and composition tool that aims to expand guitarist capacities by providing innovative ways in which the user can interact with the system. In ord...

    Authors: Leandro L. Costalonga, Rosa M. Vicari and Evandro M. Miletto

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192562

    Content type: OriginalPaper

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  17. This paper presents a non-conventional approach for the automatic music genre classification problem. The proposed approach uses multiple feature vectors and a pattern recognition ensemble approach, according ...

    Authors: Carlos N. Silla, Alessandro L. Koerich and Celso A. A. Kaestner

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192561

    Content type: OriginalPaper

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  18. Cooperative manipulation refers to the simultaneous manipulation of a virtual object by multiple users in an immersive virtual environment (VE). In this work, we present techniques for cooperative manipulation...

    Authors: Marcio S. Pinho, Doug A. Bowman and Carla M. Dal Sasso Freitas

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192559

    Content type: Articles

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  19. A sandwich problem for property π asks whether there exists a sandwich graph of a given pair of graphs which has the desired property π Graph sandwich problems were first defined in the context of Computationa...

    Authors: Mitre C. Dourado, Priscila Petito, Rafael B. Teixeira and Celina M. H. de Figueiredo

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192558

    Content type: Articles

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  20. Data abstraction is a powerful technique to overcome state explosion in model checking. For CSPZ (a formal integration of the well-known specification languages CSP and Z), current approaches can mechanically abs...

    Authors: Adalberto Farias, Alexandre Mota and Augusto Sampaio

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192557

    Content type: Articles

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  21. Supervised statistical learning covers important models like Support Vector Machines (SVM) and Linear Discriminant Analysis (LDA). In this paper we describe the idea of using the discriminant weights given by ...

    Authors: Gilson A. Giraldi, Paulo S. Rodrigues, Edson C. Kitani, João R. Sato and Carlos E. Thomaz

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192556

    Content type: Articles

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  22. An increasing number of verification tools (e.g., software model-checkers) require the use of Satisfiability Modulo Theories (SMT) solvers to implement the back-ends for the automatic analysis of specification...

    Authors: David Déharbe, Silvio Ranise and Jorgiano Vidal

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192553

    Content type: Regular Articles

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  23. Meeting and managing quality requirements such as performance, security… in a reuse context (software product line…) has a problematic that it is not found in single-systems. In this paper, an overview of aspe...

    Authors: Leire Etxeberria, Goiuria Sagardui and Lorea Belategi

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192552

    Content type: Articles

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  24. An obstacle to software reuse is the large number of major modifications that frequently have to be made as a consequence of dependencies within the reused software components. In this paper, common coupling i...

    Authors: Liguo Yu

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192551

    Content type: Articles

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  25. Product-line architectures (PLAs) are an effective mechanism for facilitating the reuse of software components on different mobile devices. Mobile applications are typically delivered to devices using over-the...

    Authors: Jules White, Douglas C. Schmidt, Egon Wuchner and Andrey Nechypurenko

    Citation: Journal of the Brazilian Computer Society 2008 14:BF03192550

    Content type: Articles

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  26. Software engineers often rely on communication middleware platforms to design and implement distributed systems. However, middleware functionality is usually invasive, pervasive and tangled with business-speci...

    Authors: Cristiano Amaral Maffort and Marco Tulio de Oliveira Valente

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03194258

    Content type: Articles

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  27. Mapping is a basic capability for mobile robots. Most applications demand some level of knowledge about the environment to be accomplished. Most mapping approaches in the literature are designed to perform in ...

    Authors: Denis F. Wolf and Gaurav S. Sukhatme

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03194257

    Content type: Articles

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  28. The importance of real-time systems has enormously increased in the last decade. Application areas that typically need real-time models include railroad systems, intelligent vehicle highway systems, avionics, ...

    Authors: Leonardo Michelon, Simone André da Costa and Leila Ribeiro

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03194256

    Content type: Articles

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  29. Transformation Based Learning (TBL) is a Machine Learning technique frequently used in some Natural Language Processing (NLP) tasks. TBL uses rule templates to identify error-correcting patterns. A critical re...

    Authors: Ruy Luiz Milidiú, Julio Cesar Duarte and Cícero Nogueira dos Santos

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03194255

    Content type: Articles

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  30. As demands for behaviorally sophisticated software grow, agent-based systems are increasingly being employed. Software agents are frequently applied to large, complex systems that involve interdisciplinary dev...

    Authors: Shawn A. Bohner, Denis Graĉanin, Michael G. Hinchey and Mohamed Eltoweissy

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03194254

    Content type: Articles

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  31. We consider the problem of surface reconstruction of a geometric object from a finite set of sample points with normals. Our contribution is to present a new scheme for implicit surface reconstruction. Similar...

    Authors: B. Mederos, M. Lage, S. Arouca, F. Petronetto, L. Velho, T. Lewiner and H. Lopes

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03194253

    Content type: Articles

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  32. The possibility that a complex network can be brought down by attack on a single or very few nodes through the process of cascading failures is of significant concern. In this paper, we investigate cascading f...

    Authors: Liang Zhao, Kwangho Park, Ying-Cheng Lai and Thiago Henrique Cupertino

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03192546

    Content type: Articles

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  33. The interaction is the key element used in Collaborative Learning Environments to understand the process of knowledge building and the role played by each student in it. Interaction analysis can provide suppor...

    Authors: Sandra A. Siebra, Ana Carolina Salgado and Patrícia A. Tedesco

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03192545

    Content type: Articles

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  34. Organizations in today’s global economy face continual pressures to remain responsive to changes in the competitive marketplace. One way that firms have adapted to these pressures is to use web-based communica...

    Authors: Jerry Fjermestad and Rosalie J. Ocker

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03192544

    Content type: Articles

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  35. Flexibility is a major issue in business today and one answer to that is to organize work in networks of companies rather than within a single business. Cooperation between organizations is more easily establi...

    Authors: Peter Rittgen

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03192542

    Content type: Articles

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  36. The present paper describes a system for the construction of visual maps (“mosaics”) and motion estimation for a set of AUVs (Autonomous Underwater Vehicles). Robots are equipped with down-looking camera which...

    Authors: Silvia Botelho, Renato Neves, Lorenzo Taddei and Vinícius Oliveira

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03192410

    Content type: OriginalPaper

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  37. Law enforcement approaches have been proposed to promote dependability in open multi-agent systems. Interaction laws are defined and then enforced to promote predictability. As new software demands and require...

    Authors: Gustavo R. Carvalho, Rodrigo B. Paes, Carlos J. P. Lucena and Ricardo Choren

    Citation: Journal of the Brazilian Computer Society 2007 13:BF03192406

    Content type: OriginalPaper

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