[developers] Semantic treebanking without grammar?

[Stephan Oepen]

hi berthold,

i think there are two variables that need to be set:

  (setf lkb::*tree-discriminants-mode* :modern)
  (setf lkb::*tree-display-view* :modern)

plus there was an assumption that the ‘mrs’ field be populated in the
‘result’ relation, but the ‘derivation’ field be empty.  i have purged the
latter assumption, and added to the [incr tsdb()] podium two toggles:

  Trees|Switches|Semantic Discriminants
  Trees|Switches|Show Elementary Dependencies

there is a new 64-bit run-time binary in the LOGON tree, so i would
suggest you ‘make update’ and then try with the two switches above
set from the podium.

please let me know in case you run into more problems!  oe


> we would like to do some MRS treebanking on the output of a French TAG.
> Obviously, we cannot replay derivations with the LKB, so
> we thought that we could simply treebank using the discriminators extracted
> from the MRS. I quickly tried this out with a Hausa treebank, i.e.
> activating Trees|Annotate without any grammar loaded, and the fine system
> just outputs error messages complaining it cannot reconstruct the trees.
> *tree-discriminants-mode* is set to :modern.
>
> Is it possible at all? I remember an LREC 2006 paper on this. What do I have
> to do configuration-wise to make it possible?