The Parameterized Complexity of Some Geometric Problems in Unbounded Dimension
The Parameterized Complexity of Some Geometric Problems in Unbounded Dimension
复制标题
一些无界维几何问题的参数化复杂性
DOI:
10.1007/978-3-642-11269-0_16
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
G. Rote
中科院分区:
文献类型:
--
作者:
P. Giannopoulos;Christian Knauer;G. Rote
We study the parameterized complexity of the following fundamental geometric problems with respect to the dimension d:
i) Given n points in ? d , compute their minimum enclosing cylinder.
ii) Given two n-point sets in ? d , decide whether they can be separated by two hyperplanes.
iii) Given a system of n linear inequalities with d variables, find a maximum size feasible subsystem.
We show that (the decision versions of) all these problems are W[1]-hard when parameterized by the dimension d. Our reductions also give a n ?(d)-time lower bound (under the Exponential Time Hypothesis).