R
Renato Machado
Researcher at Universidade Federal de Santa Maria
Publications - 81
Citations - 402
Renato Machado is an academic researcher from Universidade Federal de Santa Maria. The author has contributed to research in topics: Synthetic aperture radar & Change detection. The author has an hindex of 7, co-authored 66 publications receiving 290 citations. Previous affiliations of Renato Machado include Instituto Tecnológico de Aeronáutica & Nokia.
Papers
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Journal ArticleDOI
An agent based and biological inspired real-time intrusion detection and security model for computer network operations
Azzedine Boukerche,Renato Machado,Kathia Regina Lemos Jucá,João Bosco Mangueira Sobral,Mirela Sechi Moretti Annoni Notare +4 more
TL;DR: This paper presents a novel intrusion detection model based on artificial immune and mobile agent paradigms for network intrusion detection, which is host-based and adopts the anomaly detection paradigm.
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False Alarm Reduction in Wavelength-Resolution SAR Change Detection Using Adaptive Noise Canceler
TL;DR: The introduced method aims at minimizing the false alarms caused by the elongated structures and is based on the well-known adaptive processing mechanism, i.e., the so-called adaptive noise canceler (ANC) where a separate reference signal is required.
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The Stability of UWB Low-Frequency SAR Images
TL;DR: In this letter, it is found that, for “good” image pairs, the subtracted image has Gaussian distributed clutter backscattering and that the noise mainly consists of the thermal noise and, therefore, speckle noise does not have to be considered.
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Two-step ensemble approach for intrusion detection and identification in IoT and fog computing environments
TL;DR: In this paper , the authors presented a two-step approach for intrusion detection and identification in IoT environments, where the first step performs a traffic analysis with an extra tree binary classifier and events detected as intrusive are analyzed in the second stage by an ensemble approach consisting of Extra Tree, Random Forest, and Deep Neural Network.
Journal ArticleDOI
Change Detection in UWB SAR Images Based on Robust Principal Component Analysis
Christofer Schwartz,Lucas P. Ramos,Leonardo Tomazeli Duarte,Marcelo da Silva Pinho,Mats I. Pettersson,Viet T. Vu,Renato Machado +6 more
TL;DR: The experimental results show that RPCA via principal component pursuit (PCP) can provide a good trade-off between PD and FAR, and a comparison between the results obtained and a classical CD algorithm based on the likelihood ratio test provides the pros and cons of the proposed method.