Procedures that work on graphs, the networks of points joined by links. Dijkstra's algorithm finds the shortest paths from one point to all others in a weighted graph such as a road network, and topological sorting orders the points of a directed graph so that every link runs forward, which is how tasks with prerequisites are scheduled. Both are standard tools in routing, planning and build systems.
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Wikipedia: PageRank
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PageRank (PR) is an algorithm used by Google Search to rank web pages
Wikipedia: Dijkstra's Algorithm
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Dijkstra's algorithm (, DYKE-strəz) is an algorithm for finding the shortest paths between nodes in a weighted graph, which may represent, for example, a road network.
Wikipedia: Topological Sort
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In computer science, a topological sort or topological ordering of a directed graph is a linear ordering of its vertices such that for every directed edge (u,v) from vertex u to vertex v, u comes before v in the ordering.
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