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- W2034706203 abstract "In this paper we present a very efficient graph partitioning scheme QuickCut that uses the basic strategy of the Kernighan-Lin (K-L) algorithm to swap pairs of nodes to improve an existing partition of a graph G. The main feature of QuickCut is a neighborhood strategy that is based on the result (obtained in this paper) that it is not necessary to search more than a certain subset of d/sup 2/ node pairs to find the node pair with the maximum swap gain. Here d is the maximum node degree of G. We also use an improved data structure, viz., balanced trees, to store the nodes in the two partitions. Due to the new search strategy and data structure, QuickCut has a worst-case time complexity of /spl Theta/(max(ed, e log n)), and an average-case complexity of /spl Theta/(e log n), where e is the number of edges of G. The K-L algorithm, on the other hand, has a time complexity of /spl Theta/(n/sup 2/ log n), where n is the number of nodes of G. Another contribution of this paper is the presentation of efficient node-pair scanning methods for obtaining the best node pair to swap in the K-L algorithm. We have implemented QuickCut, K-L, and its various enhancements suggested here. The results obtained from using these different algorithms to partition a number of random and other well-defined graphs show that QuickCut is the fastest, and that it is faster than the K-L algorithm by factors of 5 to 50. Thus QuickCut can serve as the basis for very fast VLSI partitioning and layout tools." @default.
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- W2034706203 date "1993-11-07" @default.
- W2034706203 modified "2023-09-26" @default.
- W2034706203 title "New faster Kernighan-Lin-type graph-partitioning algorithms" @default.
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- W2034706203 doi "https://doi.org/10.5555/259794.259855" @default.
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