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) The CRP argument can be ommitted only when n=0.

-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>.