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» Constraint Programming and Graph Algorithms
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GD
2005
Springer
15 years 12 months ago
Fast Node Overlap Removal
Most graph layout algorithms treat nodes as points. The problem of node overlap removal is to adjust the layout generated by such methods so that nodes of non-zero width and height...
Tim Dwyer, Kim Marriott, Peter J. Stuckey
DAC
2003
ACM
16 years 7 months ago
Automatic trace analysis for logic of constraints
Verification of system designs continues to be a major challenge today. Simulation remains the primary tool for making sure that implementations perform as they should. We present...
Xi Chen, Harry Hsieh, Felice Balarin, Yosinori Wat...
ICSE
2008
IEEE-ACM
16 years 7 months ago
Temporal dependency based checkpoint selection for dynamic verification of fixed-time constraints in grid workflow systems
In grid workflow systems, temporal correctness is critical to assure the timely completion of grid workflow execution. To monitor and control the temporal correctness, fixed-time ...
Jinjun Chen, Yun Yang
CP
2007
Springer
16 years 17 days ago
Encodings of the Sequence Constraint
Abstract. The SEQUENCE constraint is useful in modelling car sequencing, rostering, scheduling and related problems. We introduce half a dozen new encodings of the SEQUENCE constra...
Sebastian Brand, Nina Narodytska, Claude-Guy Quimp...
CP
2004
Springer
15 years 11 months ago
How Much Backtracking Does It Take to Color Random Graphs? Rigorous Results on Heavy Tails
Many backtracking algorithms exhibit heavy-tailed distributions, in which their running time is often much longer than their median. We analyze the behavior of two natural variant...
Haixia Jia, Cristopher Moore