[itsdb] Q: Analysis limit and result storage limit

[Stephan Oepen]

hi berthold,

> I was wondering what is the difference between these two tsdb++ options?
> How do they affect parsing with Pet? Does setting of analysis limit
> activate selective unpacking, if cheap is called with packing enabled? 

generally, both parameters are passed to the processing client: `Result
Storage Limit' just controls how many results are to be sent back to
[incr tsdb()] and should not impact the parsing procedure itself.  but,
as you suspect, `Analysis Limit' is meant to turn on best-first search
(until that many analyses are found or the search is exhausted), though
only if `Exhaustive Search' is turned off at the same time.

in PET, when run with packing, best-first search amounts to selective
unpacking.  there used to be a non-packing best-first mode, where the
agenda was ordered by MaxEnt scores of partial constituents.  i cannot
quite say whether this mode is still functional.  

most likely one will benefit most from settings like the following:

  (setf *tsdb-exhaustive-p* nil)
  (setf *tsdb-maximal-number-of-analyses* 1000)
  (setf *tsdb-maximal-number-of-results* 
    *tsdb-maximal-number-of-analyses*)

this is, naturally, assuming the latest PET from SVN and a MaxEnt model
provided as part of the grammar.

                                                      all best  -  oe

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