July 2017
Intermediate to advanced
796 pages
18h 55m
English
Content preview from Scala and Spark for Big Data Analytics
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Traveling salesman problem
Traveling salesman problem tried to find the shortest path through an undirected graph traversing every vertex, for example, user, John, wants to drive to every other user minimizing the total distance driven. As the number of vertices and edges increase, the number of permutations also increases polynomially to cover all the possible paths from vertex to vertex. The time complexity increases polynomially to a point that the problem can take a very long time to solve. Rather than solve it completely and accurately, an approach known as a greedy algorithm is used to solve the problem as optimally as possible.
To solve the traveling salesman problem, the greedy approach is to quickly choose the shortest edge, knowing ...
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