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cs.DS2013★ 3 cited
An approximation algorithm for the Bandpass-2 problem
Weitian Tong, Zhi-Zhong Chen, Lusheng Wang +4
The general Bandpass- problem is NP-hard and can be approximated by a reduction into the weighted -set packing problem, with a worst case performance ratio of . When…
cs.DS2013
Algorithms for Cut Problems on Trees
Iyad Kanj, Guohui Lin, Tian Liu +7
We study the {\sc multicut on trees} and the {\sc generalized multiway Cut on trees} problems. For the {\sc multicut on trees} problem, we present a parameterized algorithm that ru…