• Hadoop cluster deployment: A methodological approach 

  Correia, Ronaldo Celso Messias ; Spadon, Gabriel; Gomes, Pedro Henrique De Andrade ; Eler, Danilo Medeiros ; Garcia, Rogério Eduardo ; Junior, Celso Olivete (Information (Switzerland), 2018) [Artigo]

  For a long time, data has been treated as a general problem because it just represents fractions of an event without any relevant purpose. However, the last decade has been just about information and how to get it. Seeking ...

• Hybrid visualization approach to show documents similarity and content in a single view 

  Andreotti, Andre Luiz Dias ; Silva, Lenon Fachiano ; Eler, Danilo Medeiros (Information (Switzerland), 2018) [Artigo]

  Multidimensional projection techniques can be employed to project datasets from a higher to a lower dimensional space (e.g., 2D space). These techniques can be used to present the relationships of dataset instances based ...

• Double distance-calculation-pruning for similarity search 

  Pola, Ives Renê Venturini; Pola, Fernanda Paula Barbosa; Eler, Danilo Medeiros (Information (Switzerland), 2018) [Artigo]

  Many modern applications deal with complex data, where retrieval by similarity plays an important role. Complex data main comparison mechanisms are based on similarity predicates. They are usually immersed in metric spaces ...

• Statistical evaluation and analysis of road extraction methodologies using a unique dataset from remote sensing 

  Cardim, Guilherme Pina ; da Silva, Erivaldo Antônio ; Dias, Mauricio Araújo ; Bravo, Ignácio; Gardel, Alfredo (Remote Sensing, 2018) [Artigo]

  In the scientific literature, multiple studies address the application of road extraction methodologies to a particular cartographic dataset. However, it is difficult for any study to perform a more reliable comparison ...

• Analysis of document pre-processing effects in text and opinion mining 

  Eler, Danilo Medeiros ; Grosa, Denilson ; Pola, Ives; Garcia, Rogério ; Correia, Ronaldo ; Teixeira, Jaqueline (Information (Switzerland), 2018) [Artigo]

  Typically, textual information is available as unstructured data, which require processing so that data mining algorithms can handle such data; this processing is known as the pre-processing step in the overall text mining ...

• Motivating engineering students to math classes: Practical experience teaching ordinary differential equations 

  Brandi, Analice Costacurta ; Garcia, Rogério Eduardo (Proceedings - Frontiers in Education Conference, FIE, 2017) [Trabalho apresentado em evento]

  Teaching mathematics for engineering students is very important. New undergraduate students are aware that they will need mathematical concepts in professional activities. It is still usual to observe not only the difficulty ...

• An Approach to Perform Local Analysis on Multidimensional Projection 

  Marcilio, Wilson Estecio ; Eler, Danilo Medeiros ; Garcia, Rogerio Eduardo (Proceedings - 30th Conference on Graphics, Patterns and Images, SIBGRAPI 2017, 2017) [Trabalho apresentado em evento]

  In the context of Visualization, Multidimensional Projection techniques are employed to show similarity relations among instances of a multidimensional dataset. Distinct projection techniques use different approaches to ...

• Risco de lesões de ombro em cortadores de cana-de-açúcar: Análise baseada na simulação dos movimentos 

  Messias, Iracimara de Anchieta ; de Andrade, Fabiana Rodrigues ; Artero, Almir Olivette ; Nóbrega, Líria Akie Okai de Albuquerque (Scientia Medica, 2017) [Artigo]

  AIMS: To evaluate whether the amplitude angles of shoulder flexion and abduction, in the movements performed during a simulation of the sugarcane cutting task, exceed the limits considered safe. METHODS: Non-randomized ...

• On how characteristics that hinder test data generation using symbolic execution combine: An analysis of the SF100 benchmark 

  Eler, Marcelo Medeiros; Endo, Andre Takeshi; Durelli, Vinicius H. S.; Eler, Danilo Medeiros (Proceedings - International Conference of the Chilean Computer Science Society, SCCC, 2017) [Trabalho apresentado em evento]

  Symbolic execution has made great strides in the last two decades. However, some characteristics of programs still pose significant challenges to test data generation techniques that use symbolic execution and constraint ...

• An evaluation of the Volume on Surface (VoS) approach 

  Santos, Rafael Silva ; Eler, Danilo Medeiros ; Garcia, Rogerio Eduardo ; Correia, Ronaldo Celso Messias (Proceedings - 2016 29th SIBGRAPI Conference on Graphics, Patterns and Images, SIBGRAPI 2016, 2017) [Trabalho apresentado em evento]

  Hybrid volume rendering algorithms combine techniques of different categories of volume visualization. Volume on Surface (VoS) is a hybrid volume rendering technique that maps volume information to isosurfaces, intending ...

• Avaliação da qualidade de dados ambientais por meio de técnicas de analítica visual 

  do Carmo, Alisson Fernando Coelho ; Shimabukuro, Milton Hirokazu ; de Alcântara, Enner Herenio (Boletim de Ciencias Geodesicas, 2016) [Artigo]

  The technological advances has boosted automated and periodic data collections using sensors, such as those performed in Integrated Environmental Monitoring System (SIMA), which dataset is used in this work. Despite of the ...

• Performance indicators analysis in software processes using semi-supervised learning with information visualization 

  Bodo, Leandro ; de Oliveira, Hilda Carvalho ; Breve, Fabricio Aparecido ; Eler, Danilo Medeiros (Advances in Intelligent Systems and Computing, 2016) [Capítulo de livro]

  Software development process requires judicious quality control, using performance indicators to support decision-making in the different processes chains. This paper recommends the use of machine learning with the semi ...

• Performance evaluation of data migration methods between the host and the device in CUDA-based programming 

  Santos, Rafael Silva ; Eler, Danilo Medeiros ; Garcia, Rogério Eduardo (Advances in Intelligent Systems and Computing, 2016) [Capítulo de livro]

  CUDA-based programming model is heterogeneous – composed of two components: host (CPU) and device (GPU). Both components have separated memory spaces and processing units. A great challenge to increase GPU-based application ...

• An immersive and interactive visualization system by integrating distinct platforms 

  Neto, Mario Popolin; Eler, Danilo Medeiros ; Moraes, Alessandro Campanha De ; Brega, Jose Remo Ferreira (Proceedings of the International Conference on Information Visualisation, 2015) [Trabalho apresentado em evento]

  Visualization applications can be performed on distinct platforms, such as mobile devices and multi-projection systems. Each platform offers specific features to provide further data understanding, and a system that ...

• Plasma structure extraction from lasco images by the dual-tree complex wavelet transform 

  Souza, Vitor Moura; Domingues, Margarete Oliveira; Mendes, Odim; Pagamisse, Aylton (Revista Brasileira de Geofisica, 2015) [Artigo]

  Images of the Sun obtained in distinct electromagnetic ranges can be very useful to investigate electrodynamical processes that occur in this star. This work analyzes the application of a two-dimensional version of the ...

• Enhancement of Space Plasma Images by Complex Wavelets 

  Souza, Vitor Moura; Domingues, Margarete Oliveira; Mendes, Odim; Pagamisse, Aylton ; Stenborg, Guillermo Adrian (Brazilian Journal of Physics, 2015) [Artigo]

  The Sun is a natural laboratory for plasma processes. A myriad of instruments aboard satellites and on ground record(ed) the plasma emission in different ranges of the electromagnetic spectrum to help understand such ...

• Stock closing price forecasting using ensembles of constructive neural networks 

  João, Rafael Stoffalette; Guidoni, Tarcisio Fonseca; Bertini, Joao Roberto; Nicoletti, Maria Do Carmo; Artero, Almir Olivette (Proceedings - 2014 Brazilian Conference on Intelligent Systems, BRACIS 2014, 2014) [Trabalho apresentado em evento]

  Efficient automatic systems which continuously learn over long periods of time, and manage to evolve its knowledge, by discarding obsolete parts of it and acquiring new ones to reflect recent data, are difficult to be ...

• Teaching software quality via source code inspection tool 

  De Andrade Gomes, Pedro Henrique; Garcia, Rogério Eduardo; Spadon, Gabriel; Eler, Danilo Medeiros; Olivete, Celso; Correia, Ronaldo Celso Messias (Proceedings - Frontiers in Education Conference, FIE, 2017) [Trabalho apresentado em evento]

  Software Quality Assurance is a sub-process that ensures that developed software meets and complies with defined or standardized quality specifications. Focusing on source code, there are characteristics that can be used ...

• Nehari method for locally Lipschitz functionals with examples in problems in the space of bounded variation functions 

  Figueiredo, Giovany M.; Pimenta, Marcos T. O. (Nonlinear Differential Equations and Applications, 2018) [Artigo]

  In this work we prove some abstract results about the existence of a minimizer for locally Lipschitz functionals, over a set which has its definition inspired in the Nehari manifold. As applications we present a result of ...

• Multiplicity Results for the Fractional Laplacian in Expanding Domains 

  Figueiredo, Giovany M.; Pimenta, Marcos T. O. ; Siciliano, Gaetano (Mediterranean Journal of Mathematics, 2018) [Artigo]

  In this paper, we establish a multiplicity result of nontrivial weak solutions for the problem (- Δ) αu+ u= h(u) in Ω λ, u= 0 on ∂Ω λ, where Ω λ= λΩ , Ω is a smooth and bounded domain in RN, N> 2 α, λ is a positive parameter, ...

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