A tight bound on approximating arbitrary metrics by tree metrics

J Fakcharoenphol, S Rao, K Talwar - … of the thirty-fifth annual ACM …, 2003 - dl.acm.org
In this paper, we show that any n point metric space can be embedded into a distribution
over dominating tree metrics such that the expected stretch of any edge is O (log n). This …

Bypassing the embedding: algorithms for low dimensional metrics

K Talwar - Proceedings of the thirty-sixth annual ACM symposium …, 2004 - dl.acm.org
The doubling dimension of a metric is the smallest k such that any ball of radius 2r can be
covered using 2k balls of radius r. This concept for abstract metrics has been proposed as a …

Advances in metric embedding theory

I Abraham, Y Bartal, O Neimany - Proceedings of the thirty-eighth annual …, 2006 - dl.acm.org
Metric Embedding plays an important role in a vast range of application areas such as
computer vision, computational biology, machine learning, networking, statistics, and …

Measured descent: A new embedding method for finite metrics

R Krauthgamer, JR Lee, M Mendel… - 45th Annual IEEE …, 2004 - ieeexplore.ieee.org
We devise a new embedding technique, which we call measured descent, based on
decomposing a metric space locally, at varying speeds, according to the density of some …

[PDF][PDF] Extending Lipschitz functions via random metric partitions

JR Lee, A Naor - Inventiones mathematicae, 2005 - homes.cs.washington.edu
Many classical problems in geometry and analysis involve the gluing together of local
information to produce a coherent global picture. Inevitably, the difficulty of such a procedure …

A linear programming formulation and approximation algorithms for the metric labeling problem

C Chekuri, S Khanna, J Naor, L Zosin - SIAM Journal on Discrete Mathematics, 2004 - SIAM
We consider approximation algorithms for the metric labeling problem. This problem was
introduced in a paper by Kleinberg and Tardos J. ACM, 49 (2002), pp. 616--630 and …

Approximation algorithms for multicommodity-type problems with guarantees independent of the graph size

A Moitra - 2009 50th Annual IEEE Symposium on Foundations …, 2009 - ieeexplore.ieee.org
Linial, London and Rabinovich [16] and Aumann and Rabani [3] proved that the min-cut max-
flow ratio for general maximum concurrent flow problems (when there are k commodities) is …

Graph clustering using effective resistance

VL Alev, N Anari, LC Lau, SO Gharan - arXiv preprint arXiv:1711.06530, 2017 - arxiv.org
$\def\vecc# 1 {\boldsymbol {# 1}} $ We design a polynomial time algorithm that for any
weighted undirected graph $ G=(V, E,\vecc w) $ and sufficiently large $\delta> 1$, partitions …

SDP gaps and UGC hardness for multiway cut, 0-extension, and metric labeling

R Manokaran, J Naor, P Raghavendra… - Proceedings of the …, 2008 - dl.acm.org
The connection between integrality gaps and computational hardness of discrete
optimization problems is an intriguing question. In recent years, this connection has …

Vertex sparsifiers: New results from old techniques

M Englert, A Gupta, R Krauthgamer, H Racke… - SIAM Journal on …, 2014 - SIAM
Given a capacitated graph G=(V,E) and a set of terminals K⊆V, how should we produce a
graph H only on the terminals K so that every (multicommodity) flow between the terminals in …