A 1.5-approximation algorithm for augmenting edge-connectivity of a graph from 1 to 2

Guy Even; Guy Kortsarz; Zeev Nutov

doi:10.1016/j.ipl.2010.12.010

A 1.5-approximation algorithm for augmenting edge-connectivity of a graph from 1 to 2

Guy Even, Guy Kortsarz, Zeev Nutov

מדעי המחשב

نتاج البحث: نشر في مجلة › مقالة › مراجعة النظراء

ملخص

We consider the following NP-hard problem: given a connected graph G=(V,ε) and a link set E on V disjoint to ε, find a minimum size subset of edges F ⊆ E such that (V,ε∪F) is 2-edge-connected. In G. Even et al. (2005) [2] we presented a 1.8-approximation for the problem. In this paper we improve the ratio to 1.5.

اللغة الأصلية	الإنجليزيّة
الصفحات (من إلى)	296-300
عدد الصفحات	5
دورية	Information Processing Letters
مستوى الصوت	111
رقم الإصدار	6
المعرِّفات الرقمية للأشياء	https://doi.org/10.1016/j.ipl.2010.12.010
حالة النشر	نُشِر - 15 فبراير 2011

ملاحظة ببليوغرافية

Funding Information:
✩ Preliminary version in APPROX 2001, pp. 90–101. * Corresponding author. E-mail addresses: [email protected] (G. Even), [email protected] (G. Kortsarz), [email protected] (Z. Nutov). 1 Partially supported by NSF grant number 0728787.

الوصول إلى المستند

10.1016/j.ipl.2010.12.010

الملفات والروابط الأخرى

Link to publication in Scopus

قم بذكر هذا

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title = "A 1.5-approximation algorithm for augmenting edge-connectivity of a graph from 1 to 2",

abstract = "We consider the following NP-hard problem: given a connected graph G=(V,ε) and a link set E on V disjoint to ε, find a minimum size subset of edges F ⊆ E such that (V,ε∪F) is 2-edge-connected. In G. Even et al. (2005) [2] we presented a 1.8-approximation for the problem. In this paper we improve the ratio to 1.5.",

keywords = "Approximation algorithms, Laminar family, Tree augmentation",

author = "Guy Even and Guy Kortsarz and Zeev Nutov",

note = "Funding Information: ✩ Preliminary version in APPROX 2001, pp. 90–101. * Corresponding author. E-mail addresses: [email protected] (G. Even), [email protected] (G. Kortsarz), [email protected] (Z. Nutov). 1 Partially supported by NSF grant number 0728787.",

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AU - Nutov, Zeev

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N2 - We consider the following NP-hard problem: given a connected graph G=(V,ε) and a link set E on V disjoint to ε, find a minimum size subset of edges F ⊆ E such that (V,ε∪F) is 2-edge-connected. In G. Even et al. (2005) [2] we presented a 1.8-approximation for the problem. In this paper we improve the ratio to 1.5.

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KW - Approximation algorithms

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A 1.5-approximation algorithm for augmenting edge-connectivity of a graph from 1 to 2

ملخص

ملاحظة ببليوغرافية

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الملفات والروابط الأخرى

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