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apertium-tagger(1)                                          apertium-tagger(1)


NAME

       apertium-tagger - This application is part of  ( apertium )

       This tool is part of the apertium open-source machine translation
       architecture: http://www.apertium.org.


SYNOPSIS

       apertium-tagger --train|-t {n} DIC CRP TSX PROB [--debug|-d]

       apertium-tagger --supervised|-s {n} DIC CRP TSX PROB HTAG UNTAG
       [--debug|-d]

       apertium-tagger --retrain|-r {n} CRP PROB [--debug|-d]

       apertium-tagger --tagger|-g [--first|-f] PROB [--debug|-d] [INPUT
       [OUTPUT]]


DESCRIPTION

       apertium-tagger is the application responsible for the apertium part-
       of-speech tagger training or tagging, depending on the calling options.
       This command only reads from the standard input if the option --tagger
       or -g is used.


OPTIONS

       -t {n}, --train {n}
              Initializes parameters through Kupiec's method (unsupervised),
              then performs n iterations of the Baum-Welch training algorithm
              (unsupervised).

       -s {n}, --supervised {n}
              Initializes parameters against a hand-tagged text (supervised)
              through the maximum likelihood estimate method, then performs n
              iterations of the Baum-Welch training algorithm (unsupervised)

       -r {n}, --retrain {n}
              Retrains the model with n additional Baum-Welch iterations
              (unsupervised).

       -g, --tagger
              Tags input text by means of Viterbi algorithm.

       -p, --show-superficial
              Prints the superficial form of the word along side the lexical
              form in the output stream.

       -f, --first
              Used in conjuntion with -g (--tagger) makes the tagger give all
              lexical forms of each word, with the chosen one in the first
              place (after the lemma)

       -d, --debug
              Print error (if any) or debug messages while operating.

       -m, --mark
              Mark disambiguated words.

       -h, --help
              Display a help message.


FILES

       These are the kinds of files used with each option:

       DIC Full expanded dictionary file

       CRP Training text corpus file

       TSX Tagger specification file, in XML format

       PROB Tagger data file, built in the training and used while tagging

       HTAG Hand-tagged text corpus

       UNTAG Untagged text corpus, morphological analysis of HTAG corpus to
       use both jointly with -s option

       INPUT Input file, stdin by default

       OUTPUT Output file, stdout by default


SEE ALSO

       lt-proc(1), lt-comp(1), lt-expand(1), apertium(1).


BUGS

       Lots of...lurking in the dark and waiting for you!


AUTHOR

       Copyright (c) 2005, 2006 Universitat d'Alacant / Universidad de
       Alicante.  This is free software.  You may redistribute copies of it
       under the terms of the GNU General Public License
       <http://www.gnu.org/licenses/gpl.html>.

                                  2006-08-30                apertium-tagger(1)

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