Artificial Immune Systems
Mostrando 13-23 de 23 artigos, teses e dissertações.
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13. Extensões e aplicações de redes neuro-imunológicas / Extensions and applications of neuro-immune network
This thesis considers the extension and development of immune-inspired tools. The developed tools are devoted to the resolution of clustering and classification problems with binary or real-valued data attributes. Inspired by ideas of the immune system, the considered algorithms have produced robust and parsimonious solutions. A common feature in the develop
Publicado em: 2006
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14. Algoritmo de detecção de falhas para sistemas telefonicos utilizando a teoria do perigo / Fault detection algorithm for telephone systems using the danger theory
Abstract This thesis presents a fault detection algorithm composed of multiple interconnected modules, and operating according to the paradigm supported by the Danger Theory in immunology. This algorithm attempts to achieve significant features that a fault detection system is supposed to express when monitoring a telephone system. These features would basic
Publicado em: 2006
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15. Evolução de redes imunologicas para coordenação automatica de comportamentos elementares em navegação autonoma de robos / Evolution of immune networks for automatic coordination of elementary behaviors on robot autonomous navigation
A concepção de sistemas autônomos de navegação para robôs móveis, havendo múltiplos objetivos simultâneos a serem atendidos, como a coleta de lixo com manutenção da integridade, requer a adoção de técnicas refinadas de coordenação de módulos de comportamento elementar. Modelos de redes imunológicas artificiais podem então ser empregados na
Publicado em: 2006
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16. Sintese sonora auto-organizavel atraves da aplicação de algoritmos bio-inspirados / Self-organizing sound synthesis by means of the application of bio-inspired algorithms
Não há limitações teóricas para o uso do computador como fonte de sons musicais. O computador digital permite a produção de qualquer som concebivel dada a seqüência correta de números (amostras digitais). No entanto, produzir uma dada seqüência de números que corresponda a um som musical que possua determinadas características perceptivas desej
Publicado em: 2006
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17. Bioinspired computing systems : synthesis and application in computational intelligence and artificial homeostasis / Sistemas computacionais bio-inspirados : sintese e aplicação em inteligencia computacional e homeostase artificial
This work proposes a circumstantial classification for complex systems, including a unified description structure to be employed in the analysis and synthesis of biologically inspired computing metaphors. Considered as a branch of organized complex systems, these bio-inspired computing frameworks may be subdivided into computation intelligence systems and ar
Publicado em: 2005
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18. Bio-inspired algorithms applied to dynamic optimization / Algoritmos bio-inspirados aplicados a otimização dinamica
This dissertation proposes bio-inspired algorithms to solve dynamic optimization problems, i.e., problems for which the optimization surface on the search space suffers several changes over time. With such variation of number, position and quality of local optima, mathematical programming techniques may present degradation of performance, because they were u
Publicado em: 2005
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19. Neural networks forecasting and classification-based techniques for novelty detection in time series
Novelty detection can be defined as the identification of new or unknown data that a machine learning system is not aware during training. Novelty detection algorithms are designed to classify input patterns as normal or novelty. These algorithms are used in several areas such as computer vision, machine fault detection, network security and fraud detection.
Publicado em: 2004
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20. Fever induction pathways: evidence from responses to systemic or local cytokine formation
The immune and central nervous systems are functionally connected and interacting. The concept that the immune signaling to the brain which induces fever during infection and inflammation is mediated by circulating cytokines has been traditionally accepted. Administration of bacterial lipopolysaccharide (LPS) induces the appearance of a so-termed "cytokine c
Brazilian Journal of Medical and Biological Research. Publicado em: 2001-03
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21. Interactions between Mycoplasma pneumoniae and guinea pig complement.
The "toxic" effect of guinea pig serum (GPS) on Mycoplasma pneumoniae cells was tested under various conditions, using rounding and killing of the cells as test systems. Both activities could be inhibited by heat inactivation (56 C, 30 min). Killing required both Ca2+ and Mg2+, rounding only Mg2+. Both activities were temperature dependent and no rounding or
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22. High-Titer, Wild-Type Free Recombinant Adeno-Associated Virus Vector Production Using Intron-Containing Helper Plasmids
Recombinant adeno-associated virus (rAAV) is capable of directing long-term, high-level transgene expression without destructive cell-mediated immune responses. However, traditional packaging methods for rAAV vectors are generally inefficient and contaminated with replication-competent AAV (rcAAV) particles. Although wild-type AAV is not associated with any
American Society for Microbiology.
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23. Components of Hybrid Dysgenesis in a Wild Population of DROSOPHILA MELANOGASTER
Hybrid dysgenesis is a condition found in certain interstrain hybrids of Drosophila melanogaster caused by the interaction of chromosomal and cytoplasmic factors. Germ-line abnormalities, including sterility, high mutability and male recombination, appear in the affected individuals. There are at least two distinct systems of hybrid dysgenesis. We examined a