Architecture Of Computer Networks
Mostrando 25-36 de 38 artigos, teses e dissertações.
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25. PIPS: Um sistema proativo de prevenÃÃo contra intrusÃes
Protecting a computer system involves a set of security procedures followed by continuous monitoring. Intrusion Detection Systems (IDS) have historically been used to monitor computer networks against threats. Recently the IDSâs have evolved to allow real-time protection against attacks and have been marketed as Intrusion Prevention Systems (IPS). These sys
Publicado em: 2005
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26. Uma arquitetura de computaÃÃo pervasiva para trabalho de campo
Fieldwork environments present diverse restrictions, such as a lack of infrastructure and the use of low capacity devices. Current work on ad hoc networks and pervasive computing do not consider some aspects that could bring improvements to these kinds of environments. This thesis describes an architecture composed of services and a routing protocol to suppo
Publicado em: 2005
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27. Uma arquitetura de segurança computacional inspirada no sistema imunologico
The human immune system is able to guarantee the survival of an individual for his/her entire life, even though he/she encounters potentially deadly parasites, bacteria and viruses on a daily basis. In this way, this biological system provides a rich source of inspiration for the security of computer networks. Besides the fact that the human immune system pr
Publicado em: 2004
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28. Infra-estrutura de transcodificaÃÃo para distribuiÃÃo de Ãudio em uma Intranet adaptÃvel ao estado da rede
With the advent of Computer Networks and their popularization, principally in 80 and 90âs decades, the traditional, secure and reliable centralized architecture, represented by mainframes, was rapidily substituted by a descentralized architecture haracterized by tring to resolve old problems already resolved by the old architeture and facing new problems, d
Publicado em: 2004
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29. Clock synchronization in computer networks with quality of service
The Network Time Protocol (NTP), a protocol that synchronizes clocks from networked computers, has nearly two decades of existence and is continuously evolving. Due to its robust treatment of phase and frequency, an algorithm that disciplines the local machine clock, implementations available for a great deal of platforms and operating systems, it became a �
Publicado em: 2003
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30. Analysis of the application of TMN standards for the management of CRM systems. / Análise da aplicação dos padrões TMN no gerenciamento de sistemas de CRM.
Despite the fact that the information technology (IT) has been applied for business purposes since the sixties, they only became essential to business in the late eighties, when the technology started to play an essential role for corporations of any size. Therefore, the profile of the typical IT user in business has shifted from huge companies to mid-sized
Publicado em: 2003
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31. Classificação e recuperação de imagens por cor utilizando técnicas de inteligência artificial
Image retrieval and classification are today the subject of extensive research. This topic poses both theoretical and practical challenges as researchers attempt to give machines such as computers and robots the ability to see. Image retrieval and classification are part of a wider field known as Computer Vision, which encompasses several practical applicati
Publicado em: 2003
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32. Redes neurais e suas aplicações em calibração multivariada
Neural Networks are a set of mathematical methods and computer programs designed to simulate the information process and the knowledge acquisition of the human brain. In last years its application in chemistry is increasing significantly, due the special characteristics for model complex systems. The basic principles of two types of neural networks, the mult
Química Nova. Publicado em: 2001-12
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33. Geração de trajetorias para robos moveis autonomos via redes neurais artificiais
The autonomous navigation of vehic1es has been an area of great interest for researchers for a long time, mainly in the area of artificial intelligence. One of the most interesting problems is that related to the trajectory generated for a vehic1e, which shall be guided in an environrnent, avoiding colliding with obstac1es in order to reach predefined positi
Publicado em: 2001
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34. Segmentação de imagens por classificação de cores: uma abordagem neural. / Image segmentation by color classification: a neural approach.
The present work approaches the segmentation of colored images through the process of color classification, i.e., the segmentation of images based on the color attribute of pixels. We look for a color classification as close as possible of human classification. In other words, we look for a robust classification with respect to the variation of illumination
Publicado em: 2000
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35. ConstruÃÃo de um nariz artificial usando redes neurais
The animals interact with environment in several ways. The smell around them has an extremely importance in the information transport, essential for survival. Such as for the animals, the smell plays an important rule for human beings. Due to this importance, the study in the human olfactory system is very helpful and started very long time ago. Although it
Publicado em: 2000
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36. Quantitative Trait Loci Underlying Gene Product Variation: A Novel Perspective for Analyzing Regulation of Genome Expression
A methodology to dissect the genetic architecture of quantitative variation of numerous gene products simultaneously is proposed. For each individual of a segregating progeny, proteins extracted from a given organ are separated using two-dimensional electrophoresis, and their amounts are estimated with a computer-assisted system for spot quantification. Prov