April 2025
Intermediate to advanced
268 pages
6h 17m
Portuguese (Portugal, Brazil)
Content preview from Algoritmos de grafos
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Prefácio
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O que é que as seguintes coisas têm em comum: análise de atribuição de marketing, análise de combate ao branqueamento de capitais (AML), modelação do percurso do cliente, análise de factores causais de incidentes de segurança, descoberta baseada na literatura, deteção de redes de fraude, análise de nós de pesquisa na Internet, criação de aplicações de mapas, análise de grupos de doenças e análise do desempenho de uma peça de William Shakespeare. Como deves ter adivinhado, o que todos estes aspectos têm em comum é a utilização de gráficos, provando que Shakespeare tinha razão quando declarou: "O mundo inteiro é um gráfico!"
Ok, o Bardo de Avon não escreveu graph nesta frase, ele escreveu stage. No entanto, repara que todos os exemplos listados acima envolvem entidades e as relações entre elas, incluindo relações diretas e indirectas (transitivas). As entidades são os nós do grafo - podem ser pessoas, acontecimentos, objectos, conceitos ou lugares. As relações entre os nós são as arestas do gráfico. Portanto, não será a essência de uma peça shakespeariana a representação ativa de entidades (os nós) e das suas relações (as arestas)? Por conseguinte, talvez Shakespeare pudesse ter escrito grafo na sua famosa declaração.
O que torna os algoritmos de grafos e as bases de dados de grafos tão interessantes e poderosos não é a simples relação entre duas entidades, ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.