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» Amalgamations of factorizations of complete graphs
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SPAA
2006
ACM
14 years 2 months ago
On the price of heterogeneity in parallel systems
Suppose we have a parallel or distributed system whose nodes have limited capacities, such as processing speed, bandwidth, memory, or disk space. How does the performance of the s...
Brighten Godfrey, Richard M. Karp
INFOCOM
2009
IEEE
14 years 3 months ago
Computing the Capacity Region of a Wireless Network
—We consider a wireless network of n nodes that communicate over a common wireless medium under some interference constraints. Our work is motivated by the need for an efficient...
Ramakrishna Gummadi, Kyomin Jung, Devavrat Shah, R...
FOCS
2005
IEEE
14 years 2 months ago
On Non-Approximability for Quadratic Programs
This paper studies the computational complexity of the following type of quadratic programs: given an arbitrary matrix whose diagonal elements are zero, find x ∈ {−1, +1}n th...
Sanjeev Arora, Eli Berger, Elad Hazan, Guy Kindler...
GD
2007
Springer
14 years 2 months ago
A Bipartite Strengthening of the Crossing Lemma
Let G = (V, E) be a graph with n vertices and m ≥ 4n edges drawn in the plane. The celebrated Crossing Lemma states that G has at least Ω(m3 /n2 ) pairs of crossing edges; or ...
Jacob Fox, János Pach, Csaba D. Tóth
ESA
2009
Springer
124views Algorithms» more  ESA 2009»
14 years 3 months ago
Minimum Makespan Multi-vehicle Dial-a-Ride
Dial-a-Ride problems consist of a set V of n vertices in a metric space (denoting travel time between vertices) and a set of m objects represented as source-destination pairs {(si,...
Inge Li Gørtz, Viswanath Nagarajan, R. Ravi