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We present in this article a summary of the main research results in the last years in the area of Web Information Retrieval produced by two Brazilian groups, from the Federal University of Amazon as and the Federal University of Minas Gerais. The two groups have worked in several common research projects in the last five years. The research results described here are concentrated in three main topics...
Intelligent surveillance systems have become an important research issue recently. They can provide an early warning or help us to retrieve interested video frames. The motion detection techniques play an important role in these two applications. In this paper, we propose an effective surveillance video retrieval method based upon the motion detection technology. We can use this method to search frames...
Linear motion and out-of-focus blur often coexist in a surveillance system, which degrade the quality of acquired images and thus complicate the task of object recognition and event detection. In this work, we present a point spread function-based (PSF-based) approach considering fundamental characteristics of linear motion and out-of-focus blur based on geometric optics to restore coexisting motion...
This paper investigates and simulates a coloured stochastic Petri nets model for depth evaluation intrusion detection. Network attack behaviors are very complexity sometimes, it is difficult to capture all of them. In this paper, we could realize what them happened with analyzing and simulating an intrusion. The experimental results demonstrated that the CSPN model approach was an efficient and helpful...
RDF defines a frame model supporting semantic interoperability. Using the RDF, a calculation of semantic similarity between concepts in ontology is presented by the hierarchy of ontology concepts. To make the calculation of semantic similarity between concepts more similar to human's subjective judgment, the similarity be measured by word form or semantic methods. Whether the word to be compared is...
We introduce an architecture for unit tests that traces the values of output variables of JavaScript programming. We present an object model that describes the relationships between tracing and other programming components. We also present six types of tracing statements, implementation and automation approach. We created examples of XHTML and JavaScript programming to illustrate the implementation...
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