Offline Algorithms for Dynamic Minimum Spanning Tree Problems

نویسنده

  • David Eppstein
چکیده

We describe an efficient algorithm for maintaining a minimum spanning tree (MST) in a graph subject to a sequence of edge weight modifications. The sequence of minimum spanning trees is computed offline, after the sequence of modifications is known. The algorithm performs O(log n) work per modification, where n is the number of vertices in the graph. We use our techniques to solve the offline geometric MST problem for a planar point set subject to insertions and deletions; our algorithm for this problem performs O(log n) work per modification. No previous dynamic geometric MST algorithm was known.

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عنوان ژورنال:
  • J. Algorithms

دوره 17  شماره 

صفحات  -

تاریخ انتشار 1991