A Shortcut to (Sun)Flowers: Kernels in Logarithmic Space or Linear Time
A Shortcut to (Sun)Flowers: Kernels in Logarithmic Space or Linear Time
复制标题
(太阳)花的捷径:对数空间或线性时间中的内核
DOI:
10.1007/978-3-662-48054-0_25
复制
发表时间:
2015
期刊:
影响因子:
1.1
通讯作者:
Stefan Kratsch
中科院分区:
文献类型:
--
作者:
S. Fafianie;Stefan Kratsch
We investigate whether kernelization results can be obtained if we restrict kernelization algorithms to run in logarithmic space. This restriction for kernelization is motivated by the question of what results are attainable for preprocessing via simple and/or local reduction rules. We find kernelizations for \(d\)-hitting set( k ), \(d\)-set packing( k ), edge dominating set( k ), and a number of hitting and packing problems in graphs, each running in logspace. Additionally, we return to the question of linear-time kernelization. For \(d\)-hitting set( k ) a linear-time kernel was given by van Bevern [Algorithmica (2014)]. We give a simpler procedure and save a large constant factor in the size bound. Furthermore, we show that we can obtain a linear-time kernel for \(d\)-set packing( k ).
影响因子:
1.1
作者:
René van Bevern
通讯作者:
René van Bevern