SGAT: Semantic Graph Attention for 3D Human Pose Estimation. Luiz Schirmer, Djalma Lucio, Leandro Cruz, Alberto Raposo, Luiz Velho, Hélio Lopes, 34th Conference on Graphics, Patterns and Images - SIBGRAPI, 2021.
Semantic graph attention networks and tensor decompositions for computer vision and computer graphics. Luiz Schirmer, Luiz Velho, Hélio Lopes, 34th Conference on Graphics, Patterns and Images - SIBGRAPI WTD, 2021.
Neural Networks for Implicit Representations of 3D Scenes. Luiz Schirmer, Guilherme Schardong, Vinícius da Silva, Helio Lopes, Tiago Novello, Daniel Yukimura, Thales Magalhaes, Hallison Paz, and Luiz Velho, 34th Conference on Graphics, Patterns and Images - SIBGRAPI Tutorials, 2021.
Interpretable Concept Drift. J. G. Mattos, T. Silva, A. Laier, H. Lopes, 25th International Conference on Pattern Recognition - CIARP, 2021.
Controlling Personal Data Flow: An Ontology in the COVID-19 Outbreak using a Permissioned Blockchain. P. H. Alves, I. Z. Frajholf, F. A. Correia, C. S. de Souza, H. Lopes, 22th International Conference on Enterprise Information Systems - ICEIS, 2021.
A Robust Real-time Component for Personal Protective Equipment Detection in an Industrial Setting. P. Torres, A. Davys, T. Silva, L. Schirmer, A. Kuramoto, B. Itagyba, C. Salgado, S. Comandulli, P. Ventura, L. Fialho, M. Fischer, M. Kalinowski, S. Barbosa, H. Lopes, 22th International Conference on Enterprise Information Systems - ICEIS, 2021.
Investigating Problem Definition and End-User Involvement in Agile Projects that Use Lean Inceptions. Bruna Ferreira, Marcos Kalinowski, Marcos VC Gomes, Marcelo C Marques, Hélio Lopes, Simone DJ Barbosa, SBQS 2021.
Lessons Learned from a Lean R&D Project. B. Teixeira, B. Ferreira, A. Damasceno, S. D. J. Barbosa, C. Novello, H. Villamizar, M. Kalinowski, T. Silva, J. Chuenke, H. Lopes, A. Kuramoto, B. Itagyba, C. Salgado, S. Comandulli, M. Fischer, L. Fialho, 22th International Conference on Enterprise Information Systems - ICEIS, 2021.
Visual Analysis Tool for a BLE Technology based Tracking Data. F. Schneider, A. Branco, A. M. B. Rodrigues, F. Carvalho, S. D. J. Barbosa, M. Endler, H. Lopes, 22th International Conference on Enterprise Information Systems - ICEIS, 2021.
Yet another BLE technology based tracking system. F. Schneider, A. Branco, A. M. B. Rodrigues, F. Carvalho, S. D. J. Barbosa, M. Endler, H. Lopes, ACM Simposium on Applied Computing, 2021.
A lightweight 2D Pose Machine with attention enhancement. L. Schirmer, D. Lucio, A. Raposo, L. Velho, H. Lopes, SIBGRAPI 2020 - XXXIV Conference on Graphics, Patterns and Images, 2020.
An End-to-end Framework for 3D Capture and Human Digitization with a Single RGB Camera. L. Schirmer, D. Soares da Silva, L. Velho, H. Lopes, Eurographics 2020 (posters), 2020.
Investigating Multimodal Features for Video Recommendations at Globoplay. F. Ferreira, D. R. Souza, I. Moreira, M. Barbieri, H. Lopes, 2020 ACM RecSys 2020 (Industrial Track), 2020.
Lean R&D: An Agile Research and Development Approach for Digital Transformation, Marcos Kalinowski, Helio Lopes, Alex Teixeira, Gabriel Cardoso, Andre Kuramoto, Bruno Itagyba, Solon Tarso Batista, Juliana Alves Pereira, Thuener Silva, Alam Warrak, Marcelo da Costa, Marinho Fischer, Cristiane Salgado, Bianca Teixeira, Jacques Chueke, Bruna Ferreira, Rodrigo Lima, Hugo Villamizar, André Brandão, Simone Diniz Junqueira Barbosa, Marcus Poggi, Carlos Pelizaro, Deborah Lemes, Marcus Waltemberg, Odnei Lopes and Willer Goulart, The 21st International Conference on Product-Focused Software Process Improvement (PROFES 2020), 2020.
Towards Lean R&D: An Agile Research and Development Approach for Digital Transformation, Marcos Kalinowski, Solon Tarso Batista, Helio Lopes, Simone Barbosa, Marcus Poggi, Thuener Silva, Hugo Villamizar, Jacques Chueke, Bianca Teixeira, Juliana Alves Pereira, Bruna Ferreira, Rodrigo Lima, Gabriel da Silva Cardoso, Alex Furtado Teixeira, Jorge Alam Warrak, Marinho Fischer, André Kuramoto, Bruno Itagyba, Cristiane Salgado, Carlos Pelizaro, Deborah Lemes, Marcelo Silva da Costa, Marcus Waltemberg, Odnei Lopes, The 46th Euromicro Conference on Software Engineering and Advanced Applications (SEAA 2020), 2020.
Incorporating Dynamic Production Logging Data to the Permeability Estimation Workflow Using Machine Learning. C. Guimarães, L. Schirmer, G. Schardong, A. Barreto Jr., H. Lopes, 2020 Latin America and Caribbean Petroleum Engineering Conference (LACPEC), 2020.
Brazilian Lyrics-Based Music Genre Classification Using a BLSTM Network, R. A. Lima, R. C. C. de Souza, S. D. J. Barbosa, H. Lopes, 19th International Conference on Artificial Intelligence and Soft Computing (ICAISC), 2020.
Globo Face Stream: a system for video meta-data generation in an entertainment industry setting. R. Pena, F. A. Ferreira, A. Caroli, L. Schirmer, H. Lopes, 21th International Conference on Enterprise Information Systems - ICEIS, 2020. (BEST PAPER AWARD)
Using a domain ontology to bridge the gap between user intention and expression in natural language queries. A. G. de Sousa, D. dos Santos Ribeiro, R. C. C. de Sousa, A. M. B. Rodrigues, P. H. T. Furtado, S. D. J. Barbosa, H. Lopes, 21th International Conference on Enterprise Information Systems - ICEIS, 2020.
Exploring ontology-based information through the progressive disclosure of visual answers to related queries. D. S. Ribeiro, A. G. de Sousa, R. B. de Almeida, P. H. T. Furtado, H. Lopes, S. D. J. Barbosa, 22ND International Conference on Human-Computer Interaction - HCI, 2020.
Revisiting Visualization Task Taxonomies: Specifying Functions for the Data Transformations Stage. A. M. B. Rodrigues, G. D. J. Barbosa, R. de A. Lima, D. J. F. Braga, H. Lopes, S. D. J. Barbosa, 22ND International Conference on Human-Computer Interaction - HCI, 2020.
Comparing the effectiveness of visualization of different data distributions. A. M. B. Rodrigues, G. D. J. Barbosa, H. Lopes, S. D. J. Barbosa, XXXIII Symposium on Graphics, Patterns and Images (SIBGRAPI), 2019.
Portuguese POS Tagging Using BLSTM without Handcrafted Features. Romulo C. Costa de Souza, H. Lopes, 24th Iberoamerican Congress on Pattern Recognition, CIARP 2019.
What can be found from student interaction logs of online courses offered in Brazil. André Damasceno, C. Almeida, W. Fernandes,, H. Lopes, S. Barbosa, Congresso Brasileiro de Informática da Educação - CBIE 2019.
An Exploratory Analysis of Precedent Relevance in the Brazilian Supreme Court Rulings. F. A. C. dos Santos Junior, J. L. Nunes, G. da F. C. Fernades de Almeida, A. A. A. Almeida and H. Lopes, 19th ACM Symposium on Document Engineering (DocEng), 2019.
Visual exploration tools for ensemble clustering analysis. S. Fiol Gonzalez, A. M. B. Rodrigues, C. Almeida, S. D. J. Barbosa and H. Lopes, 10th International Conference on Information Visualization Theory and Applications, IVAP 2019.
Bootstrapping Vector Fields. P. Ceccon Ribeiro and H. Lopes, 14th International Conference on Computer Graphics Theory and Applications, GRAPP 2019.
Dealing with heterogeneous Google Earth images on Building Area Detection task. C. Almeida, W. Fernandes, S. D. J. Barbosa and H. Lopes, 23rd Iberoamerican Congress on Pattern Recognition, CIARP 2018.
Inverse projection of vector fields, P. Ceccon Ribeiro, H. Lopes, XXXII Symposium on Graphics, Patterns and Images (SIBGRAPI) (2018).
Applying Pattern-Driven Maintenance: A Method to Prevent Latent Unhandled Exceptions in Web Applications. D. S. Mendonça, T.G. Silva, D. F. Oliveira, S. J. Brandão, H. Lopes, S. D. J. Barbosa, ; M. Kalinowsky, A. Von Staa, ACM/IEEE International Symposium on Empirical Software Engineering and Measurement (ESEM), p. 1-10 (2018).
A Novel Committee-Based Clustering Method, S. Fiol Gonzalez, C. F. P. Almeida, S. D. J. Barbosa, H. Lopes, DaWaK 2018 - 20th International Conference on Big Data Analytics and Knowledge Discovery, 2018, Regensburg. LNCS - Proceedings of the 20th International Conference on Big Data Analytics and Knowledge Discovery. Berlim: Springer v. 11031. p. 126-136, (2018).
Visual support to filtering cases for process discovery, L Schirmer, L Q. Campagnolo, S. F. Gonzalez, A. M. B. Rodrigues, G. Schardong, R. França, M. Lana., S. D. J. Barbosa, M. Poggi, H. Lopes, 19th International Conference on Enterprise Information Systems - ICEIS (2018) (Selected as one of the best papers for a book on LNCS series).
Mining the Criminal Data of Rio de Janeiro: Analyzing the Impact of the Pacifying Police Units Deployment, S. F. Gonzalez, C. F. P. Almeida, P. C. L. Souza, S. D. J. Barbosa, H. Lopes, Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications - 22nd Iberoamerican Congress on Pattern Recognition, CIARP 2017, LNCS 10657, pp. 28-35, (2018).
STAIRWAY TO VALUE: Mining the loan application process, Ariane Rodrigues, Cassio Almeida, Daniel Saraiva, Felipe Moreira, Georges Spyrides, Guilherme Varela, Gustavo Krieger, Igor Peres, Leila Dantas, Mauricio Lana, Odair Alves, Rafael França, Ricardo Neira, Sonia Gonzalez, William Fernandes, Simone Barbosa, Marcus Poggi, and Hélio Lopes, 13th Business Process Intellingence Workshop - BPI Challenge 2017 (WINNER at the Academic Category) (2017).
On computing travel time functions from Trajectory Data Streams, S. M. Nascimento, J. A. F. de Macedo, H. Lopes, M. A. Casanova, J. de Castro Machado, Proceedings of the 8th ACM SIGSPATIAL International Workshop on GeoStreaming, IWGS 2017, pp. 11-20 (2017).
CrimeVis: An intereactive visualization system for analyzing criminal data in the State of Rio de Janeiro, L. Schimer Silva, S. F. Gonzalez, C. F. P. Almeida, S. D. J. Barbosa, H. Lopes, 19th International Conference on Enterprise Information Systems - ICEIS (2017).
An approach to evaluate the impact on travel time of bus network changes, K. Rodriguez, M. A. Casanova, H. Lopes, J. A. Macedo. 19th International Conference on Enterprise Information Systems - ICEIS (2017).
Multiple Response Nonlinear Regression Applied To Simultaneous Density, Vp And Vs Rock Physics Calibration And Related Statistical Analysis, E. Talarico, A. Maciel, S. D. J. Barbosa, H. Lopes, S. Pesco. 15th International Congress of the Brazilian Geophysical Society & EXPOGEF (2017).
A heuristic approach for on-line discovery of unidentified spatial clusters from grid-based streaming algorithms, M. Roriz Junior, M. Endler, F. Silva e Silva, M. A. Casanova and H. Lopes, 18th International Conference on Big Data Analytics and Knowledge Discovery - DaWaK (2016).
BusesInRio: buses as mobile traffic sensors, B. Guberfain do Amaral, R. Nasser, M. A. Casanova, H. Lopes, IEEE Mobile Data Management - MDM (2016).
On the design of a traffic observatory application based on bus trajectories, K. Rodriguez, M. A. Casanova, L. A. Paes Leme, H. Lopes, R. Nasser, B. G. do Amaral, 18th International Conference on Enterprise Information Systems - ICEIS (2016).
An Adaptive Implicit Feedback Model for Short Clips Recommendations, R. Pereira, H. Lopes, 2nd Workshop on Recommendation Systems for Television and Online Video (RecSysTV 2015) at the ACM RecSys (2015).
Real-time object tracking in high definition video using frame segmentation and background integral images, G. Moreira, B. Feijo, H. Lopes, R. Feitosa, XXII Symposium on Graphics, Patterns and Images (SIBGRAPI): pp. 75-82 (2013).
Investigating Euclidean mappings for CIEDE2000 color difference formula, L. Ridolfi, M. Gattass, H. Lopes, CIC18 2010 - 18th Color and Imaging Conference: Color Science and Engineering Systems, Technologies, and Applications: pp. 327-333 (2010).
Topology aware vector field denoising, R. Nascimento, J. Paixão, H. Lopes, T. Lewiner XXIII Symposium on Graphics, Patterns and Images (SIBGRAPI): pp. 103-109 (2010).
Tuning Manifold Harmonics Filters, T. Lewiner; T. Vieira, A. L. Bordignon, A. Cabral, J. Paixão, M. Lage, R. Nascimento, S. Pesco, H. Lopes, V. Mello, A. Peixoto, XXIII Symposium on Graphics, Patterns and Images (SIBGRAPI): pp. 110-117 (2010).
A simple compression of Tri-Quad meshes with handles, R. G. Diaz, M. Dreux, H. Lopes, T. Lewiner, 18th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, WSCG 2010: (2010).
Flow with suspended particles using fictitious domain and Lagrange multipliers: A fully implicit fully coupled finite elements approach, M. Lage, H. Lopes, M. Carvalho, Proceedings of the 20th International Congress of Mechanical Engineering: (2009).
Random walks for vector field denoising, J. Paixão, M. Lage, F. Petronetto, A. Bordignon, S. Pesco, G. Tavares, T. Lewiner, H. Lopes, XXII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 112-119 (2009).
Support vectors learning for vector field reconstruction, M. Lage, R. Castro, F. Petronetto, A. Bordignon, G. Tavares, T. Lewiner, H. Lopes, XXII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 104-111 (2009).
A new tree based regression scheme with application to yield curve forecasting, J. Kubrusly, H. Lopes, L. Vereda. 4th Brazilian Conference on Statistical Modelling in Insurance and Finance: (2009).
A hybrid Chain Ladder and Gaussian Process Regression method for IBNR estimation, J. Kubrusly, M. Dias, H. Lopes, M. Lage: 4th Brazilian Conference on Statistical Modelling in Insurance and Finance: (2009).
Approximations by smooth transitions in binary space partitions, M. Lage, A. Bordignon, F. Petronetto, A. Veiga, G. Tavares, T. Lewiner, H. Lopes, XXI Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 230-236 (2008).
Forecasting the term structure of interest rates by the use of Support Vector Regression, M. Dias, H. Lopes, L. Vereda, 3rd Brazilian Conference on Statistical Modeling in Insurance and Finance: (2007).
Reservoir reconstruction from seismic data with topological guarantees, T. Lewiner, A. Laier, R. Castro, H. Lopes, G. Tavares, R. Santos, A. Murad, 27th gOcad meeting (2007).
Multi-attribute seismic cell reservoir/non-reservoir classification with kernel based methods, R. Castro, A. Laier, T. Lewiner, H. Lopes, G. Tavares, R. Santos, A. Murad, 27th gOcad meeting (2007).
Data inspection on multiatribute seismic modeling using star coordinates, A. Laier, R. Castro, T. Lewiner, H. Lopes, G. Tavares, R. Santos, A. Murad, 27th gOcad meeting (2007).
Exploratory visualization based on multidimensional transfer functions and star coordinates, A. Bordignon, R. Castro, H. Lopes, T. Lewiner, G. Tavares, XIX Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 273-280 (2006).
Robust adaptive meshes for implicit surfaces, A. Paiva, H. Lopes, T. Lewiner, L. H. de Figueiredo, Proceedings of the XIX Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 205-212 (2006).
Vector field reconstruction from sparse samples with applications, M. Lage, F. Petronetto, A. Paiva, H. Lopes, T. Lewiner, G. Tavares, XIX Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 297-304 (2006).
Point set compression through BSP quantization, A. Bordignon, T. Lewiner, H. Lopes, G. Tavares, R. Castro, XIX Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 229-236 (2006).
GEncode: geometry-driven compression in arbitrary dimension and co-dimension, T. Lewiner, M. Craizer, H. Lopes, S. Pesco, L. Velho, E. Medeiros, XVIII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 249-256 (2005).
CHF: a scalable topological data structure for tetrahedral meshes, M. Lage, H. Lopes, T. Lewiner, L. Velho, Proceedings of the XVIII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 349-356 (2005).
Simple interval estimation for IBNR reserves, V. Lopes, H. Lopes, A. Veiga, J. Kubrusly, 2nd Brazilian Conference on Statistical Modelling in Insurance and Finance: (2005).
Yet another IBNR estimator, J. Kubrusly, H. Lopes, A. Veiga, 2nd Brazilian Conference on Statistical Modelling in Insurance and Finance: (2005).
Dealing with uncertanty in efficient frontier construction by the use of interval arithmetic, L. Vereda, D. U. Pesco, S. Pesco, H. Lopes, 2nd Brazilian Conference on Statistical Modelling in Insurance and Finance: (2005).
Hierarchical isocontours extraction and compression, T. Lewiner, L. Velho, H. Lopes, V. Mello, XVII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 234-241 (2004).
Efficient Edgebreaker for surfaces with arbitrary topology, T. Lewiner, H. Lopes, J. Rossignac, A. W. Vieira, Proceedings of the XVII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp.218-225 (2004).
Arc-length based curvature estimator, T. Lewiner, J. Gomes, H. Lopes, M. Craizer, XVII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 250-257 (2004).
Restricted BPA: Applying Ball-Pivoting on the Plane, E. Medeiros, L. Velho, H. Lopes. Proceedings of the XVII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 372-379 (2004).
A Topological Framework for Advancing Front Triangulation, E.s Medeiros, L. Velho, H. Lopes. Proceedings of the XVI Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 45-50 (2003).
Fast stellar mesh simplification, A. W. Vieira, L. Velho, H. Lopes, G. Tavares, T. Lewiner, XVI Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI): pp. 27-34 (2003).
Topological reconstruction of oil reservoir from seismic surfaces, R. Santos, T. Lewiner, H. Lopes, G. Tavares, A. Vieira, Proceedings of the Mathematical Geology'03: (2003).
Edgebreaker: A simple compression for surface with handles, H. Lopes, J. Rossignac, A. Safonova, A. Szymczac, G. Tavares, Proceedings of the 7th ACM SIGGRAPH Symposium on Solid Modeling and Its Applications: pp. 289-296 (2002).
Stochastic modeling of calcite concretions in cretacius turbiditic sandstones of the Albacora field, C. Sombra, R. Kruel, W. Lanzarini, A. Barreto, G. Tavares, H. Lopes, S. Pesco, AAPG International Conference and Exibithion: (1998).
Structural operators for modeling 3-manifolds, H. Lopes, G. Tavares, Proceedings of the 4th ACM SIGGRAPH Symposium on Solid Modeling and its Applications 1997: pp. 10-18 (1997).
Handlebody representation for surfaces and Morse operators, H. Lopes, A. Castelo, G. Tavares, Proceedings of the Curves and Surfaces in Computer Vision and Graphics III, SPIE: pp. 270-283 (1992).