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STOC
1998
ACM
139views Algorithms» more  STOC 1998»
15 years 10 months ago
Analysis of Low Density Codes and Improved Designs Using Irregular Graphs
In [6], Gallager introduces a family of codes based on sparse bipartite graphs, which he calls low-density parity-check codes. He suggests a natural decoding algorithm for these c...
Michael Luby, Michael Mitzenmacher, Mohammad Amin ...
USENIX
2001
15 years 7 months ago
Improving the FreeBSD SMP Implementation
UNIX-derived operating systems have traditionally have a simplistic approach to process synchronization which is unsuited to multiprocessor application. Initial FreeBSD SMP suppor...
Greg Lehey
TCS
1998
15 years 6 months ago
Threshold Dominating Sets and an Improved Characterization of W[2]
The Threshold Dominating Set problem is that of determining for a graph G = (V, E) whether there is a subset V ⊆ V of size k, such that for each vertex v ∈ V there are at leas...
Rodney G. Downey, Michael R. Fellows
WINE
2010
Springer
178views Economy» more  WINE 2010»
15 years 4 months ago
Improved Hardness of Approximation for Stackelberg Shortest-Path Pricing
We consider the Stackelberg shortest-path pricing problem, which is defined as follows. Given a graph G with fixed-cost and pricable edges and two distinct vertices s and t, we may...
Patrick Briest, Parinya Chalermsook, Sanjeev Khann...
IJRR
2010
115views more  IJRR 2010»
15 years 3 months ago
Improving the Efficiency of Clearing with Multi-agent Teams
We present an anytime algorithm for coordinating multiple autonomous searchers to find a potentially adversarial target on a graphical representation of a physical environment. Th...
Geoffrey Hollinger, Sanjiv Singh, Athanasios Kehag...