Lasserre Integrality Gaps for Graph Spanners and Related Problems
Lasserre Integrality Gaps for Graph Spanners and Related Problems
复制标题
图 Spanner 的 Lasserre 完整性差距及相关问题
DOI:
10.1007/978-3-030-80879-2_7
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Zhang, Zeyu
中科院分区:
文献类型:
--
作者:
Dinitz, Michael;Nazari, Yasamin;Zhang, Zeyu
There has been significant recent progress on algorithms for approximating graph spanners, i.e., algorithms which approximate the best spanner for a given input graph. Essentially all of these algorithms use the same basic LP relaxation, so a variety of papers have studied the limitations of this approach and proved integrality gaps for this LP. We extend these results by showing that even the strongest lift-and-project methods cannot help significantly, by proving polynomial integrality gaps even forlevels of the Lasserre hierarchy, for both the directed and undirected spanner problems. We also extend these integrality gaps to related problems, notablyDirected Steiner NetworkandShallow-Light Steiner Network.
登录
查看更多内容
DOI:
10.1145/1132516.1132547
发表时间:
2006
期刊:
Math. Oper. Res.
影响因子:
--
作者:
M. Charikar;K. Makarychev;Yury Makarychev
通讯作者:
Yury Makarychev
DOI:
10.1109/focs.2011.95
发表时间:
2011
期刊:
2011 IEEE 52nd Annual Symposium on Foundations of Computer Science
影响因子:
--
作者:
B. Barak;P. Raghavendra;David Steurer
通讯作者:
David Steurer
DOI:
--
发表时间:
2008
期刊:
SIAM journal on computing (Print)
影响因子:
--
作者:
Arnab Bhattacharyya;Elena Grigorescu;Kyomin Jung;Sofya Raskhodnikova;David P. Woodruff
通讯作者:
David P. Woodruff
影响因子:
0.5
作者:
Elkin, Michael;Peleg, David
通讯作者:
Peleg, David
影响因子:
1
作者:
P. Berman;Arnab Bhattacharyya;K. Makarychev;Sofya Raskhodnikova;G. Yaroslavtsev
通讯作者:
G. Yaroslavtsev