Dr. Rafael D. Coelho dos Santos Profile

Dr. Rafael D. Coelho dos Santos

at Instituto Nacional de Pesquisas Espaciais

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 12 May 2016 Paper

Challenges in mapping behaviours to activities using logs from a citizen science project

Alessandra Morais, Leandro Guarino de Vasconcelos, Rafael Santos

Proceedings Volume 9851, 98510E (2016) https://doi.org/10.1117/12.2224250

KEYWORDS: Visualization, Internet, Galactic astronomy, Feature extraction, Silver, Analytical research, Interfaces, Time metrology, Algorithm development, Cameras

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Proceedings Article | 12 May 2016 Paper

Mining the SDSS SkyServer SQL queries log

Vitor Hirota, Rafael Santos, Jordan Raddick, Ani Thakar

Proceedings Volume 9851, 98510S (2016) https://doi.org/10.1117/12.2224237

KEYWORDS: Mining, Human-machine interfaces, Visualization, Internet, Databases, Feature extraction, Neodymium, Galactic astronomy, Distance measurement, Electroluminescent displays

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Proceedings Article | 12 May 2016 Paper

Identifying compromised systems through correlation of suspicious traffic from malware behavioral analysis

Ana E. Camilo, André Grégio, Rafael D. C. Santos

Proceedings Volume 9826, 982606 (2016) https://doi.org/10.1117/12.2223968

KEYWORDS: Network security, Analytical research, Dynamical systems, System identification, Visualization, Operating systems, Statistical analysis, Telecommunications, Computer security, Internet

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Proceedings Article | 22 May 2014 Paper

Neural network based visualization of collaborations in a citizen science project

Alessandra M. Morais, Rafael D. Santos, M. Jordan Raddick

Proceedings Volume 9122, 912207 (2014) https://doi.org/10.1117/12.2050183

KEYWORDS: Visualization, Galactic astronomy, Neurons, Visual analytics, Neural networks, Associative arrays, Data processing, Brain mapping, Quantization, Computing systems

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Proceedings Article | 28 May 2013 Paper

Visualization and characterization of users in a citizen science project

Alessandra Morais, Jordan Raddick, Rafael Coelho dos Santos

Proceedings Volume 8758, 87580L (2013) https://doi.org/10.1117/12.2015888

KEYWORDS: Visualization, Galactic astronomy, Neurons, Prototyping, Computing systems, Social networks, Human-machine interfaces, Feature extraction, Visual analytics, Analytical research

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Proceedings Article | 28 May 2013 Paper

Exploring client logs towards characterizing the user behavior on web applications

Leandro Guarino de Vasconcelos, Rafael Coelho dos Santos, Laercio Baldochi

Proceedings Volume 8758, 87580G (2013) https://doi.org/10.1117/12.2015711

KEYWORDS: Visualization, Visual analytics, Human-machine interfaces, Computing systems, Data processing, Data storage, Algorithm development, Detection and tracking algorithms, Information visualization, Mining

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Proceedings Article | 5 May 2012 Paper

Analysis of web-related threats in ten years of logs from a scientific portal

Rafael Santos, André R. Grégio, Jordan Raddick, Vamsi Vattki, Alex Szalay

Proceedings Volume 8408, 84080H (2012) https://doi.org/10.1117/12.919545

KEYWORDS: Databases, Astronomy, Galactic astronomy, Data archive systems, Information security, Web services, Computer security, Neodymium, Internet, Human-machine interfaces

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Proceedings Article | 2 June 2011 Paper

Visualization techniques for malware behavior analysis

André R. A. Grégio, Rafael D. C. Santos

Proceedings Volume 8019, 801905 (2011) https://doi.org/10.1117/12.883441

KEYWORDS: Visualization, Network security, Computer security, Visual analytics, Statistical analysis, Operating systems, Data visualization, Internet, Information security, Homeland security

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Proceedings Article | 19 May 2011 Paper

Behavioral analysis of malicious code through network traffic and system call monitoring

André Grégio, Dario Fernandes Filho, Vitor Afonso, Rafael Santos, Mario Jino, Paulo de Geus

Proceedings Volume 8059, 80590O (2011) https://doi.org/10.1117/12.883457

KEYWORDS: Statistical analysis, Environmental monitoring, Information security, Error analysis, Binary data, Virtual reality, Control systems, Network security, Windows XP, Computer security

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Proceedings Article | 4 February 2011 Paper

Image segmentation refinement by modeling in turning function space

Carlos F. Volotão, Guaraci Erthal, Rafael D. Santos, Luciano Dutra

Proceedings Volume 7870, 78701B (2011) https://doi.org/10.1117/12.876728

KEYWORDS: Image segmentation, Image processing, Shape analysis, Image classification, Edge detection, Image processing algorithms and systems, Image enhancement, Detection and tracking algorithms, Remote sensing, Object recognition

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Proceedings Article | 13 April 2009 Paper

Malware distributed collection and pre-classification system using honeypot technology

André Grégio, Isabela Oliveira, Rafael Santos, Adriano Cansian, Paulo de Geus

Proceedings Volume 7344, 73440B (2009) https://doi.org/10.1117/12.818310

KEYWORDS: Sensors, Information security, Computer security, Internet, Network security, Operating systems, Target detection, Computing systems, Surface plasmons, Software development

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Proceedings Article | 9 April 2007 Paper

Evaluation of data mining techniques for suspicious network activity classification using honeypots data

André Grégio, Rafael Santos, Antonio Montes

Proceedings Volume 6570, 657006 (2007) https://doi.org/10.1117/12.719023

KEYWORDS: Data mining, Data modeling, Network security, Computer intrusion detection, Analytical research, Neural networks, Neurons, Computer security, Information security, Electronic filtering

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Proceedings Article | 5 March 1999 Paper

Creating fuzzy rules for image classification using biased data clustering

Rafael Santos

Proceedings Volume 3646, (1999) https://doi.org/10.1117/12.341077

KEYWORDS: Fuzzy logic, Image classification, Ions, Fuzzy systems, Classification systems, Tin, Agriculture, Data centers, Image processing, Prototyping

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Proceedings Article | 6 April 1998 Paper

Biased clustering method for partially supervised classification

Rafael Santos, Takeshi Ohashi, Takaichi Yoshida, Toshiaki Ejima

Proceedings Volume 3304, (1998) https://doi.org/10.1117/12.304597

KEYWORDS: Fuzzy logic, Image classification, Data centers, RGB color model, Landsat, Evolutionary algorithms, Image segmentation, Image processing, Image analysis, Earth observing sensors

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Proceedings Article | 1 April 1998 Paper

Selective attention filtering for land-use digitized map image classification

Rafael Santos, Takeshi Ohashi, Takaichi Yoshida, Toshiaki Ejima

Proceedings Volume 3305, (1998) https://doi.org/10.1117/12.304643

KEYWORDS: Image filtering, Image classification, Digital filtering, Optical filters, RGB color model, Vegetation, Feature extraction, Image enhancement, Visualization, Image segmentation

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Proceedings Article | 21 April 1995 Paper

Perceptual texture segmentation and characterization

Rafael Santos, Takeshi Ohashi, Takaichi Yoshida, Toshiaki Ejima

Proceedings Volume 2501, (1995) https://doi.org/10.1117/12.206748

KEYWORDS: Image segmentation, Image classification, Feature extraction, Image processing, Remote sensing, Landsat, Visualization, RGB color model, Computing systems, Earth observing sensors

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Showing 5 of 16 publications

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