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AAAI
1996
13 years 6 months ago
Improved Limited Discrepancy Search
We present an improvement to Harvey and Ginsberg's limited discrepancy search algorithm, which eliminates much of the redundancy in the original, by generating each path from...
Richard E. Korf
ALENEX
2008
180views Algorithms» more  ALENEX 2008»
13 years 6 months ago
Geometric Algorithms for Optimal Airspace Design and Air Traffic Controller Workload Balancing
The National Airspace System (NAS) is designed to accommodate a large number of flights over North America. For purposes of workload limitations for air traffic controllers, the a...
Amitabh Basu, Joseph S. B. Mitchell, Girishkumar S...
COMPGEOM
2009
ACM
13 years 11 months ago
Shooting permanent rays among disjoint polygons in the plane
We present a data structure for ray shooting-and-insertion in the free space among disjoint polygonal obstacles with a total of n vertices in the plane, where each ray starts at t...
Mashhood Ishaque, Bettina Speckmann, Csaba D. T&oa...
DBKDA
2010
IEEE
169views Database» more  DBKDA 2010»
13 years 9 months ago
XLeaf: Twig Evaluation with Skipping Loop Joins and Virtual Nodes
Abstract—XML indexing and search has become an important topic, and twig joins are key building blocks in XML search systems. This paper describes a novel approach using a nested...
Nils Grimsmo, Truls Amundsen Bjørklund, &Os...
COMPSAC
2008
IEEE
13 years 11 months ago
Parallel Table Lookup for Next Generation Internet
The rapid growth of Internet population leads to the shortage of IP addresses. The next generation IP protocol, IPv6, which extends the IP address length from 32 bits to 128 bits,...
Li-Che Hung, Yaw-Chung Chen