A linear time 5/3-approximation for the minimum strongly-connected spanning subgraph problem
نویسندگان
چکیده
A linear time -approximation algorithm is presented for the NP-hard problem of finding a minimum strongly-connected spanning subgraph. It is based on cycle contraction that was first introduced by Khuller, Raghavachari and Young (1995). We improve their result by contracting special cycles and utilizing a more efficient data structure.
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عنوان ژورنال:
- Inf. Process. Lett.
دوره 86 شماره
صفحات -
تاریخ انتشار 2003