By V. Kevin M. Whitney
Communications of the ACM,
April 1972,
Vol. 15 No. 4, Pages 273-274
10.1145/361284.361299
Comments
This algorithm generates a spanning tree of minimal total edge length for an undirected graph specified by an array of inter-node edge lengths using a technique suggested by Dijkstra [1]. Execution time is proportional to the square of the number of nodes of the graph; a minimal spanning tree for a graph of 50 nodes is generated in 0.1 seconds on an IBM System 360/67. Previous algorithms [2, 3, 4, 5] require an amount of computation which depends on the graph topology and edge lengths and are best suited to graphs with few edges.
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