Computing Giant Graph Diameters
نویسنده
چکیده
This paper is devoted to the fast and exact diameter computation in graphs with n vertices and m edges, if the diameter is a large fraction of n. We give an optimal O(m+n) time algorithm for diameters above n/2. The problem changes its structure at diameter value n/2, as large cycles may be present. We propose a randomized O(m + n logn) time algorithm for diameters above (1/3 + )n for constant > 0.
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تاریخ انتشار 2016