A tight bound on approximating arbitrary metrics by tree metrics
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 …
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 …
covered using 2k balls of radius r. This concept for abstract metrics has been proposed as a …
Advances in metric embedding theory
Metric Embedding plays an important role in a vast range of application areas such as
computer vision, computational biology, machine learning, networking, statistics, and …
computer vision, computational biology, machine learning, networking, statistics, and …
Measured descent: A new embedding method for finite metrics
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 …
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 …
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
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 …
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 …
flow ratio for general maximum concurrent flow problems (when there are k commodities) is …
Graph clustering using effective resistance
$\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 …
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 …
optimization problems is an intriguing question. In recent years, this connection has …
Vertex sparsifiers: New results from old techniques
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 …
graph H only on the terminals K so that every (multicommodity) flow between the terminals in …