The Heaviest Induced Ancestors Problem: Better Data Structures and Applications
The Heaviest Induced Ancestors Problem: Better Data Structures and Applications
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最严重的诱发祖先问题:更好的数据结构和应用程序
DOI:
10.1007/s00453-022-00955-7
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发表时间:
2022
期刊:
影响因子:
1.1
通讯作者:
Thankachan, Sharma V.
中科院分区:
文献类型:
--
作者:
Abedin, Paniz;Hooshmand, Sahar;Ganguly, Arnab;Thankachan, Sharma V.
Letandbe two rooted trees with an equal number of leaves. The leaves are labeled, and the labeling of the leaves inis a permutation of those in. Nodes are associated with weight, such that the weight of a nodeu, denoted byW(u), is more than the weight of its parent. A nodeand a nodeare induced, iff their subtrees have at least one common leaf label. Aheaviest induced ancestorquerywith input nodesandasks to output the pairof induced nodes with the highest combined weight, such thatis an ancestor ofandis an ancestor of. This is a useful primitive in several text processing applications. Gagie et al. (Proceedings of the 25th Canadian Conference on Computational Geometry, CCCG 2013, Waterloo, Ontario, Canada, 2013) introduced this problem and proposed three data structures with the following space-time trade-offs: (i)space andquery time, (ii)space andquery time, and (iii)O(n) space andquery time. Herenis the number of nodes in both trees combined andis an arbitrarily small constant. We present two new data structures with better space-time trade-offs: (i)space andquery time, and (ii)O(n) space andquery time. Additionally, we present new applications of these results.
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DOI:
--
发表时间:
2016
期刊:
International Conference for High Performance Computing, Networking, Storage and Analysis
影响因子:
--
作者:
Sriram P. Chockalingam;Sharma V. Thankachan;S. Aluru
通讯作者:
S. Aluru
DOI:
10.4230/lipics.cpm.2018.20
发表时间:
2018
期刊:
{CPM} 2018
影响因子:
--
作者:
Abedin, P.;Hooshmand, S.;Ganguly, A.;Thankachan, S.V.
通讯作者:
Thankachan, S.V.
DOI:
10.4230/lipics.cpm.2019.27
发表时间:
2019
期刊:
Proceedings of the 30th Annual Symposium on Combinatorial Pattern Matching, LIPIcs
影响因子:
--
作者:
Mitsuru Funakoshi;Yuto Nakashima;Shunsuke Inenaga;Hideo Bannai;Masayuki Takeda
通讯作者:
Masayuki Takeda
DOI:
--
发表时间:
2018
期刊:
Embedded Systems and Applications
影响因子:
--
作者:
A. Amir;P. Charalampopoulos;S. Pissis;J. Radoszewski
通讯作者:
J. Radoszewski
DOI:
10.4230/lipics.cpm.2018.12
发表时间:
2018
期刊:
Proceedings of Annual Symposium on Combinatorial Pattern Matching 2018, LIPIcs
影响因子:
--
作者:
Mitsuru Funakoshi;Yuto Nakashima;Shunsuke Inenaga;Hideo Bannai;Masayuki Takeda
通讯作者:
Masayuki Takeda