[Scipy-tickets] [SciPy] #1126: scipy.optimize.anneal does not respect lower/upper bounds

SciPy Trac scipy-tickets@scipy....
Fri Mar 5 01:51:19 CST 2010


#1126: scipy.optimize.anneal does not respect lower/upper bounds
--------------------------------+-------------------------------------------
 Reporter:  lboussouf           |       Owner:  somebody   
     Type:  defect              |      Status:  new        
 Priority:  normal              |   Milestone:  Unscheduled
Component:  scipy.optimize      |     Version:             
 Keywords:  bounds upper lower  |  
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Comment(by lboussouf):

 Ok,

 I'll do the modifications and the testing and post them here.

 But as far as I know, I envisage to apply upper and lower parameters on x
 and not the update as it is meaningless to specify upper and lower bounds
 to control a variation range. A radius or a standard deviation is more
 appropriate than parameters that allows an asymmetrical distribution.

 Such a assymetry would force the algorithm to progress toward a certain
 direction, which is not a correct behaviour for simulated annealing.

-- 
Ticket URL: <http://projects.scipy.org/scipy/ticket/1126#comment:6>
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