Linear-Delay Enumeration for Minimal Steiner Problems
Linear-Delay Enumeration for Minimal Steiner Problems
复制标题
最小 Steiner 问题的线性延迟枚举
DOI:
10.1145/3517804.3524148
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Wasa Kunihiro
中科院分区:
文献类型:
--
作者:
Kobayashi Yasuaki;Kurita Kazuhiro;Wasa Kunihiro
Kimelfeld and Sagiv [Kimelfeld and Sagiv, PODS 2006], [Kimelfeld and Sagiv, Inf. Syst. 2008] pointed out that the problem of enumerating K-fragments is of great importance in a keyword search on data graphs. In a graph-theoretic term, the problem corresponds to enumerating minimal Steiner trees in (directed) graphs. In this paper, we propose a linear-delay and polynomial-space algorithm for enumerating all minimal Steiner trees, improving on a previous result in [Kimelfeld and Sagiv, Inf. Syst. 2008]. Our enumeration algorithm can be extended to other Steiner problems, such as minimal Steiner forests, minimal terminal Steiner trees, and minimal directed Steiner trees. As another variant of the minimal Steiner tree enumeration problem, we study the problem of enumerating minimal induced Steiner subgraphs. We propose a polynomial-delay and exponential-space enumeration algorithm of minimal induced Steiner subgraphs on claw-free graphs. Contrary to these tractable results, we show that the problem of enumerating minimal group Steiner trees is at least as hard as the minimal transversal enumeration problem on hypergraphs.
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DOI:
10.4230/lipics.mfcs.2019.73
发表时间:
2019-08
期刊:
--
影响因子:
--
作者:
A. Conte;R. Grossi;M. Kanté;Andrea Marino;T. Uno;Kunihiro Wasa
通讯作者:
A. Conte;R. Grossi;M. Kanté;Andrea Marino;T. Uno;Kunihiro Wasa
影响因子:
1.1
作者:
L. Khachiyan;E. Boros;K. Borys;Khaled M. Elbassioni;V. Gurvich;K. Makino
通讯作者:
K. Makino
DOI:
10.1016/s0166-218x(00)00339-5
发表时间:
2002
期刊:
Discret. Appl. Math.
影响因子:
--
作者:
B. Schwikowski;Ewald Speckenmeyer
通讯作者:
Ewald Speckenmeyer
DOI:
10.1007/978-1-4613-0255-1_1
发表时间:
2001
期刊:
--
影响因子:
--
作者:
M. Brazil
通讯作者:
M. Brazil
DOI:
--
发表时间:
2006
期刊:
SIAM Journal on Discrete Mathematics 19
影响因子:
--
作者:
L.Khachiyan;E.Boros;K.Elbassioni;V.Gurvich;K.Makino
通讯作者:
K.Makino