Issue198

Title issues when using multiple heuristics
Priority bug Status chatting
Superseder Nosy List erez, gabi, jendrik, malte, salome
Assigned To Keywords 1.0
Optional summary

Created on 2011-01-07.02:00:05 by malte, last changed by erez.

Messages
msg6264 (view) Author: erez Date: 2017-04-28.11:48:11
I wish I had the time to do it... But I would 
be happy to help (maybe by reviewing the 
change).
msg6263 (view) Author: salome Date: 2017-04-28.11:47:00
I had a look into the mpd code a while back already, so I'd be interested in
tackling it.
msg6262 (view) Author: malte Date: 2017-04-28.11:40:45
Anyone interested in tackling this? It's somewhat in the way of completing the
Evaluator/Heuristic unification, and I think the current sprint would be a good
opportunity to come up with a solution. I think that now that the h values are
no longer stored messily by the search, we are in a much better position to
resolve this than we used to be.
msg6260 (view) Author: jendrik Date: 2017-04-28.10:12:38
We stumbled over heuristics[0] again yesterday. The only remaining code that still 
uses heuristics[0] is the multi-path-dependence code. This code also uses the 
last_key_removed hack. We believe that both hacks could be removed by passing a 
dedicated heuristic that is evaluated instead of using these two hacks. This 
heuristic could replace the "mpd" parameter.
msg2248 (view) Author: malte Date: 2012-06-01.11:33:45
See also issue339.
msg1101 (view) Author: malte Date: 2011-01-07.02:00:05
Our search algorithms currently do some special-casing of heuristics[0], which
causes various problems. For example, the max evaluators and sum evaluators
don't work properly; see e.g. issue181 and issue182.

This needs to be fixed by rethinking the way that the search algorithms store
data about the search space.
History
Date User Action Args
2017-04-28 11:48:11erezsetmessages: + msg6264
2017-04-28 11:47:00salomesetmessages: + msg6263
2017-04-28 11:40:45maltesetmessages: + msg6262
2017-04-28 10:12:38jendriksetnosy: + salome, jendrik
messages: + msg6260
2012-06-01 11:33:46maltesetmessages: + msg2248
2011-01-20 03:09:27maltesetkeyword: + 1.0
2011-01-07 02:00:05maltecreate