Hi, gang, 

  I sent a message to Ken Williams <kenahoo@[...].com>  but I have no
  answer. Maybe some kind soul who has some familiarity with the
  matter can have a look at this. I have a script and data at

http://wotan.liu.edu/home/krichel/tmp/ken_williams

  I want to sort a set of refused documents for best fit to a set of
  accepted documents. For each refused document, I train a set of all
  documents except that single refused document, then test the single
  refused document against that trained set. Here is my problem: at
  each test the memory requirement of the running script seems to
  increase. I have tried to free memory as much as I could by
  unassigning the hypothesis object, the knowledge set object etc to
  know avail, the memory hog slows down my machine to a crawl as the
  number of tests conducted goes into the hundreds.

  Any hints greatly appreciated! 

  Cheers,

  Thomas Krichel                    http://openlib.org/home/krichel
                                RePEc:per:1965-06-05:thomas_krichel
                                               skype: thomaskrichel