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Dijkstra's algorithm finds the shortest path from a given source node to every other node.: 196–206 It can also be used to find the shortest path to a specific destination node, by terminating the algorithm once the shortest path to the destination node is known. For example, if the nodes of the graph represent cities, and the costs of edges ...
k shortest path routing. k. shortest path routing. The k shortest path routing problem is a generalization of the shortest path routing problem in a given network. It asks not only about a shortest path but also about next k−1 shortest paths (which may be longer than the shortest path). A variation of the problem is the loopless k shortest paths.
Solution of a travelling salesperson problem: the black line shows the shortest possible loop that connects every red dot. The travelling salesman problem, also known as the travelling salesperson problem (TSP), asks the following question: "Given a list of cities and the distances between each pair of cities, what is the shortest possible route that visits each city exactly once and returns ...
The Shortest Path Faster Algorithm (SPFA) is an enhanced version of the Bellman–Ford algorithm that computes single-source shortest paths in a weighted directed graph. The algorithm performs optimally on sparse random graphs, particularly those with negative-weight edges. [1] [2] [3] The worst-case complexity of SPFA is equivalent to that of ...
When compared to one another, multiple long-distance routes starting at the same location always use the same small amount of access nodes close to the starting location to enter this network. In the same way, similar target locations are always reached by using the same access nodes close to them. This intuition only holds for long-distance ...
Equal-cost multi-path routing. Equal-cost multi-path routing ( ECMP) is a routing strategy where packet forwarding to a single destination can occur over multiple best paths with equal routing priority. Multi-path routing can be used in conjunction with most routing protocols because it is a per-hop local decision made independently at each router.
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