April 2025
Intermediate to advanced
268 pages
6h 17m
Portuguese (Portugal, Brazil)
Content preview from Algoritmos de grafos
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Capítulo 3. Plataformas e processamento de grafos
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Neste capítulo, abordaremos rapidamente os diferentes métodos de processamento de grafos e as abordagens de plataforma mais comuns. Analisaremos mais de perto as duas plataformas usadas neste livro, Apache Spark e Neo4j, e quando elas podem ser apropriadas para diferentes requisitos. As diretrizes de instalação da plataforma estão incluídas para prepará-lo para os próximos capítulos.
Considerações sobre a plataforma e o processamento de grafos
O processamento analítico de grafos tem qualidades únicas, como a computação orientada para a estrutura, focada globalmente e difícil de analisar. Nesta secção, vamos analisar as considerações gerais para plataformas e processamento de grafos.
Considerações sobre a plataforma
Há um debate sobre se é melhor aumentar ou diminuir a escala do processamento de grafos. Deves utilizar máquinas potentes com vários núcleos e grande memória e concentrar-te em estruturas de dados eficientes e algoritmos multithread? Ou valem a pena os investimentos em estruturas de processamento distribuído e algoritmos relacionados?
Uma abordagem de avaliação útil é a Configuração que Supera uma Única Thread (COST), conforme descrito no artigo de pesquisa "Escalabilidade! Mas a que custo?" por F. McSherry, M. Isard e D. Murray. O COST fornece-nos uma forma de comparar a escalabilidade de um sistema ...
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