SODA
2007
ACM
14 years 2 months ago
2007
ACM
We study the problem of aggregating partial rankings. This problem is motivated by applications such as meta-searching and information retrieval, search engine spam fighting, e-c...
SODA
2007
ACM
14 years 2 months ago
2007
ACM
SODA
2007
ACM
14 years 2 months ago
2007
ACM
This paper addresses the basic question of how well can a tree approximate distances of a metric space or a graph. Given a graph, the problem of constructing a spanning tree in a ...
SODA
2007
ACM
14 years 2 months ago
2007
ACM
A strong equilibrium (Aumann 1959) is a pure Nash equilibrium which is resilient to deviations by coalitions. We define the strong price of anarchy to be the ratio of the worst c...
SODA
2007
ACM
14 years 2 months ago
2007
ACM
We obtain the first approximation algorithm for finding the k-simple shortest paths connecting a pair of vertices in a weighted directed graph. Our algorithm is deterministic an...
SODA
2007
ACM
14 years 2 months ago
2007
ACM
We introduce a general method to count and randomly sample unlabeled combinatorial structures. The approach is based on pointing unlabeled structures in an “unbiased” way, i.e...
SODA
2007
ACM
14 years 2 months ago
2007
ACM
Random geometric graphs have been one of the fundamental models for reasoning about wireless networks: one places n points at random in a region of the plane (typically a square o...
SODA
2007
ACM
14 years 2 months ago
2007
ACM
We study a generalization of the classical secretary problem which we call the “matroid secretary problem”. In this problem, the elements of a matroid are presented to an onli...
SODA
2007
ACM
14 years 2 months ago
2007
ACM
We introduce the concept of region-fault tolerant spanners for planar point sets, and prove the existence of region-fault tolerant spanners of small size. For a geometric graph G ...