[gecode-users] Negative table in Gecode
Peter Nightingale
pwn1 at st-andrews.ac.uk
Fri Feb 27 15:11:28 CET 2015
Hi,
I hope you're all well, and thoroughly enjoying your IJCAI reviewing!
I'm working on Savile Row's Gecode (flatzinc) output -- I have a type in
SR for negative table constraints (i.e. the tuple set represents the
disallowed tuples). I don't see anything that looks relevant in
registry.cpp. Obviously turning it into a positive table constraint is
an exponential explosion.
I could decompose into one constraint per tuple -- but of course this is
horrible for propagation.
Can you suggest anything better?
Thanks,
Peter
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