Contents

Setting up Jacy

Here are some incomplete and sometime out-of-date instructions on how to install and run Jacy. First you must install the LKB or PET. Note that currently the automated installation (LkbInstallation) with the option –jacy gives an old version of the grammar.

If you want to use ChaSen for segementation and unknown word handling, then you must also install it.

Although the lkb will run standalone, there are problems with Japanese input. The recommended way to run it is from inside emacs, using the eli interface. Install the lkb and eli (following the instructions in LkbEmacs), you can run Lisp with a UTF locale (ja_JP.UTF-8), but we change it internally anyway.

Now load everything, LKB, MRS, plus [incr tsdb()]:

Open emacs

Start Lisp with M-x lkb for the precompiled binaries, or with M-x lisp if you have Allegro Common Lisp. Inside the common-lisp buffer:

:ld ~/src/lkb/src/general/loadup
(pushnew :lkb *features*)
(pushnew :mrs *features*)
(compile-system "tsdb" :force t)

Jacy also works with Steel Bank Common Lisp (sbcl).

Load the grammar with:

(read-script-file-aux "~/path/to/grammar/jacy/lkb/script")

or, if you want to use ChaSen:

(read-script-file-aux "~/path/to/grammar/jacy/lkb/script.chasen")

You can parse a sentence by typing (do-parse-tty ”犬が吠える”) in the emacs window.

If you have any questions, please write an email to: bond＠ieee.org.

Calling Jacy from Emacs

Assuming that you have a recent LOGON install, you can save some typing with the following function:

(defun jacy ()
  (interactive)
  ;; set up logon
  (logon)
  ;;set tsdb home and skeleton home
  (insert (format 
           "(tsdb::tsdb :skeleton \"%s/dfki/jacy/tsdb\")"
           logon-root))
  (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 "(lkb::read-script-file-aux  \"%s/dfki/jacy/lkb/script\")" 
           logon-root))
  (fi:inferior-lisp-newline)
  ;; set up input method
  (set-input-method "japanese"))

Using JACY with PET

You need to segment the Japanese, for example by preprocessing with ChaSen:

> chasen -F"%m " | cheap ~/japanese/japanese.grm

reading `pet/japanese.set’…

loading `japanese.grm’ (Japanese (jan-03))

16674 types in 1.7 s

Using JACY with [incr tsdb()]

Note: some of these instructions may be out of date.

Install itsdb, following the instructions in the manual.

The latest version of JACY and versions of itsdb later than 2003-05-20 should work as is with Japanese.

  M-x itsdb

Note: Japanese test sentences should be in utf-8.

To get itsdb to count Japanese words, you need to segment the test sentences at some stage. This can be done during import.

if there is a _global_ preprocessing hook’, [incr tsdb()] import will pipe everything through it and use the _second_ value that it returns as the i-length’ field; e.g. (setf *tsdb-preprocessing-hook* “lkb::chasen-preprocess-for-pet”)

will enable that hook globally, and once you use a definition of this function that counts correctly (no good doing length() on a variable _after_ using the destructive nreverse() on it :-{), you will notice that (i) imports from text files are much slower and (ii) Browse – Test Items’ will show [http://chasen.naist.jp ChaSen] word counts for the i-length’ field.

Note that because the import can now take actual time (half a second per item or so), the [incr tsdb()] progress meter should advance correctly during the import from text file function (this does not work on versions older than 2003-06),

There is an example of user-fns.lsp’ for JaCY that enables the *tsdb-preprocessing-hook*, when [incr tsdb()] is loaded _before_ the grammar. (You could also set this in ~/.tsdbrc`, but then it would affect everything you do, no matter which grammar was used.)

from user-fns.lsp:

;;; ;;; hook for [incr tsdb()] to call when preprocessing input (going to the PET ;;; parser or when counting `words’ while import test items from a text file). ;;;

(defun chasen-preprocess-for-pet (input)

(preprocess-sentence-string input :verbose nil :posp t))

#+(or :pvm :itsdb)

(setf tsdb::*tsdb-preprocessing-hook* “lkb::chasen-preprocess-for-pet”)

Using JACY with itsdb and PET

Install itsdb and PET.

You can run Japanese with a cpu defined in your .tsdbrc (substituting your pathnames).

grammardir=${LOGONROOT}/dfki/jacy
grammarscript=${grammardir}/lkb/script
skeletondir=${grammardir}/tsdb/skeletons
grm=${grammardir}/japanese.grm
petpreprocessor=lkb::chasen-preprocess-for-pet
grmname=jacy

(tsdb::make-cpu
        :host (short-site-name)
        :spawn "${LOGONROOT}/bin/cheap"
        :options (list "-tsdb" "-packing" "${grm}")
        :class :pet :name "${grmname}-pet" :grammar "${grmname}"
        :task '(:parse) :wait 300 :quantum 180)
(tsdb::make-cpu
        :host (short-site-name)
        :spawn "${LOGONROOT}/bin/cheap"
        :options (list "-tsdb" "-packing" "-tok=yy" "-default-les" "${grm}")
        :class :lex :name "${grmname}-lex" :grammar "${grmname}"
        :preprocessor "${petpreprocessor}"
        :task '(:parse) :wait 300 :quantum 180)

After starting lkb-ja and itsdb in emacs:

Choose the cpu in the normal way by evaluating

(tsdb::tsdb :cpu :nihongo :file t) in the *common-lisp* buffer:

LKB(2): (tsdb::tsdb :cpu :nihongo :file t)

The preprocessor calls a function defined in usr-fns.lisp that runs chasen on the input, the combination of “-yy” “-default-les” takes the output and produces default lexical types for unknown words.

Graphical User Interface

LUI

The main graphical user interface with the LKB is now the Linguistic User Interface (LUI). Unfortunately, the default setup does not display Japanese under Unix. There are two ways to fix things:

* Install Pavel’s Pangolui as an Alternative Lui Implementation (recommended)

* Set up .luirc to specify Japanese fonts

CLIM

CLIM is used for some displays (the parse compare/treebanking window and the type hierarchy). It should work out of the box for Japanese.

Last update: 2012-02-07 by FrancisBond [edit]