NoJa

Norwegian Japanese Machine Translation "NoJa"

These are some notes to set up a system using the LOGON architecture for a new langauge pair. This is not officially supported by anyone at the moment.

Disclaimer: These pages are meant to be helpful, but that doesn't mean the authors will always be able to helpfully answer questions.

Contents

Norwegian Japanese Machine Translation "NoJa"
Running No/Ja
Trouble shooting suggestions
Set Up
Differences in attributes

Running No/Ja

We recommend you have at least 3GB of RAM. Even more memory wouldn't hurt.

start transfer and generation in one emacs (M-x noja)
start a generator server
- trollet
- load ~/logon/dfki/jacy/lkb/script
- index for generator
- start server
translate
- (mt::parse-interactively "overset meg") (C-c r)
- a parse window appears
- select the parse (with next/previous) and click transfer
- select the translation (with next/previous) and click generate
- the translation should magically popup in a little window

You can also run it as a batch with a bit more undocumented setup.

Trouble shooting suggestions

start afresh from a new emacs
are the predicates strings or types? (it is easy to confuse the two)
do you have INPUT and OUTPUT the right way round?

Set Up

Not all of the bits have been publically released yet (2006-06-09).

get a recent LOGON CVS (see LogonInstallation)
- fulfill your licensing requirements
  - put your ACL licence in
  - delete any bits you shouldn't have
add in norsource
add in noja
setup various files
- .bashrc
- .emacs
- logon/dot.tsbrc

.bashrc

LOGONROOT=~/logon
if [ -f ${LOGONROOT}/dot.bashrc ]; then
    . ${LOGONROOT}/dot.bashrc
fi

.emacs

;;;
;;; LOGON-specific settings

(defun log ()
  (interactive)
  (if (getenv "LOGONROOT")
      (let ((logon (substitute-in-file-name "$LOGONROOT")))
        (if (file-exists-p (format "%s/dot.emacs" logon))
            (load (format "%s/dot.emacs" logon) nil t t)))))

(defun jacy ()
  (interactive)
  ;; set up logon
  (log)
  ;; load lisp
  (lisp)
  ;; make the encoding suitable for japanese (EUC-JP)
  (japanese)
  ;; load the common-lisp commands
  (insert (format ":ld %s/dot.clinit.cl\n" logon-root))
  (fi:inferior-lisp-newline)
  ;; load the machine translation controller
  (insert "(lmt)") 
  ;; load the tsdb settings
  (insert (format ":ld %s/dot.tsdbrc\n" logon-root))
  (fi:inferior-lisp-newline)
  ;;set tsdb home and skeleton home
  (insert "(tsdb::tsdb :home \"/home/bond/treebank/mrs\")")
  (fi:inferior-lisp-newline)
  (insert (format 
           "(tsdb::tsdb :skeleton \"%s/dfki/jacy/tsdb/skeletons\")"
           logon-root))
  (fi:inferior-lisp-newline)
  ;; load the grammar
  (insert 
   (format "(read-script-file-aux  \"%s/dfki/jacy/lkb/script\")" 
           logon-root))
  (fi:inferior-lisp-newline))


(defun norse ()
  (interactive)
  ;; set up logon
  (log)
  ;; load lisp
  (lisp)
  ;; load the common-lisp commands
  (insert (format ":ld %s/dot.clinit.cl\n" logon-root))
  (fi:inferior-lisp-newline)
  ;; load the machine translation controller
  (fi:eval-in-lisp "(lmt)")
  ;; load the tsdb settings
  (insert (format ":ld %s/dot.tsdbrc\n" logon-root))
  (fi:inferior-lisp-newline)
  ;;set tsdb home and skeleton home
  (insert "(tsdb::tsdb :home \"/home/bond/treebank/norse\")")
  (fi:inferior-lisp-newline)
  (insert (format 
           "(tsdb::tsdb :skeleton \"%s/ntnu/norsource/tsdb/skeletons\")"
           logon-root))
  (fi:inferior-lisp-newline)
  ;; load the grammar
  (insert 
   (format "(read-script-file-aux  \"%s/ntnu/norsource/lkb/scribet\")" 
           logon-root))
  (fi:inferior-lisp-newline))

(defun noja ()
  (interactive)
  ;; set up logon
  (log)
  ;; load lisp
  (lisp)
  ;; load the common-lisp commands
  (insert (format ":ld %s/dot.clinit.cl\n" logon-root))
  (fi:inferior-lisp-newline)
  ;; load the machine translation controller
  (fi:eval-in-lisp "(lmt)")
  ;; load the tsdb settings
  (insert (format ":ld %s/dot.tsdbrc\n" logon-root))
  (fi:inferior-lisp-newline)
  ;; load the parser
  (insert "(tsdb:tsdb :cpu :norse-parse :file t)")
  (fi:inferior-lisp-newline)
  ;; load the transfer grammar
   (insert 
    (format "(read-script-file-aux  \"%s/ntnu/noja/lkb/script\")" logon-root))
   (fi:inferior-lisp-newline))

logon/dot.tsdbrc

       ;;;
       ;;; for NoJa (Norsource/Jacy)
       ;;; 
       (make-cpu 
        :host (short-site-name)
        :spawn binary
        :options (list "-I" base "-qq" "-locale" "no_NO.UTF-8" 
                       "-L" (format nil "~a/ntnu/norse-parse.lisp" %logon%))
        :class :norse-parse :name "norse-parse" :grammar "Norsource"
        :task '(:parse) :wait wait :quantum quantum)

logon/ntnu/norse-parse.lisp

(in-package :common-lisp-user)
;;
;; make sure we have enough space available
;;
(system:resize-areas :old 256 :new 256)
(let* ((logon (system:getenv "LOGONROOT"))
       (lingo (namestring (parse-namestring (format nil "~a/lingo" logon)))))
  ;;
  ;; load MK defsystem() and LinGO load-up library first
  ;;
  (load (format nil "~a/lingo/lkb/src/general/loadup" logon))
  ;;
  ;; for NorSource, we need (close to) the full scoop
  ;;
  (pushnew :lkb *features*)
  (pushnew :mrs *features*)
  (pushnew :tsdb *features*)
  (pushnew :logon *features*)
  (pushnew :slave *features*)
  (excl:tenuring 
   (funcall (intern "COMPILE-SYSTEM" :make) "tsdb")
   (funcall 
    (intern "READ-SCRIPT-FILE-AUX" :lkb)
    (format nil "~a/ntnu/norsource/lkb/scribet" logon)))
  (set (intern "*MAXIMUM-NUMBER-OF-EDGES*" :lkb) 10000)
  (excl:gc :tenure) (excl:gc) (excl:gc t) (excl:gc)
  (setf (sys:gsgc-parameter :auto-step) nil)
  (set (intern "*TSDB-SEMANTIX-HOOK*" :tsdb) "mrs::get-mrs-string")
  (funcall (symbol-function (find-symbol "SLAVE" :tsdb))))

To Do

Gain the admiration and respect of many by:

running things from the DELPH-IN CVS
running the parser using a cheap client instead of lisp
setting up the tsdb cpus as a list append... + Japanese grammar overgenerates passive (passive is PASS +, non-passive is boolean) - fix in vpm

Differences in attributes

Jacy (copying the ERG) has tense on prepositions, while Norsource doesn't. This caused some problems. We solved them, using the variable property mapping, as follows:

Add some types (to mrs.tdl) these mark events for which the entire attribute will be deleted:

ditch-tense := tense.
ditch-mood := mood.

Use these in out.vpm to delete the attribute iff marked with ditch-tense, otherwise to pass the values across.

TENSE : TENSE
 ditch-tense => !
  * >> *

MOOD : MOOD
  ditch-mood => !
  * >> *

In the input munging norse.tdl, find all prepositions with a regular expression and then mark them to have tense and mood deleted.

prep_mark_jf := monotonic_mtr &
[ CONTEXT.RELS < [ PRED "~_p_", LBL #h0, ARG0 #e & e ] >,
  FILTER.RELS < [ PRED "prep_swap_mark", LBL #h0, ARG0 #e ] >,
  OUTPUT.RELS < [ PRED "prep_swap_mark", LBL #h0, ARG0 #e ] >,
  FLAGS.EQUAL < #e > ].

specialize_prep_nf & monotonic_mtr &
[ INPUT.RELS < [ LBL #h, ARG0 #e],
               [ PRED "prep_swap_mark", LBL #h, ARG0 #e ] >,
  OUTPUT.RELS < +copy+ &  [ ARG0 #e &
                                    [TENSE ditch-tense,  
                                     MOOD ditch-mood] ] > ].

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