Laboratoire ICAR » Plateforme TXM

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                  *  License Conditions  *

                  ************************

concerning the use and distribution of the program system 'TreeTagger'.  

The license is granted by

Helmut Schmid, Markusstraße 8, 72760 Reutlingen, Germany

Email schmid@cis.lmu.de

1. The user can freely use TreeTagger for evaluation, research, and

   teaching purposes. Any commercial usage is forbidden without a

   separate commercial license available from the licensor.

2. The user is not allowed to distribute or sell the system to third

   parties without written permission from the licensor.

			   NO WARRANTY

3. BECAUSE THE SYSTEM IS LICENSED FREE OF CHARGE, WE PROVIDE

ABSOLUTELY NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE

LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE LICENSOR PROVIDES THE

SYSTEM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR

IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK

AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH THE USER.

SHOULD THE SYSTEM PROVE DEFECTIVE, THE USER ASSUMES THE COST OF ALL

NECESSARY SERVICING, REPAIR OR CORRECTION.

4. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL THE LICENSOR BE

LIABLE TO THE USER FOR DAMAGES, INCLUDING ANY LOST PROFITS, LOST

MONIES, OR OTHER SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING

OUT OF THE USE OR INABILITY TO USE (INCLUDING BUT NOT LIMITED TO LOSS

OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY THIRD

PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAM)

THE PROGRAM, EVEN IF THE USER HAS BEEN ADVISED OF THE POSSIBILITY OF

SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY.

The wording of this license agreement has been adapted from the

license of the ALF system by Michael Hanus, Max-Planck-Institut

Saarbruecken and the GnuEmacs General Public License (c) 1991 Free

Software Foundation. 

/*****************************************************************************/

/* How to use the TreeTagger                                                 */

/*****************************************************************************/

tree-tagger <parameter file> <input file> <output file> {-eps <epsilon>}

       {-base} {-proto} {-sgml} {-token} {-lemma} {-beam <threshold>}

  file must be on a separate line. Tokens may contain blanks. It is possible

  to be preceded by a tab character. The tags are optionally followed by a

  floating point value to specify the probability of the tag. Adding such

  tag information in the tagger's input is sometimes useful to ensure that

  English parameter files available by ftp, expect separation of clitics).

    New York City	NP 1.0

The options below are for advanced users. Read the papers on the TreeTagger

to fully understand their meaning.

  in the training corpus. The default is 0.1. The choice of this parameter

  has some minor influence on tagging accuracy.

* -beam <threshold>: If the tagger is slow, this option can be used to speed it up.

  Good values for <threshold> are in the range 0.001-0.00001.

There is another tagger program called "tree-tagger-flush" which

flushes the output after reading an empty line. It expects a parameter

file as argument and reads from stdin and writes to stdout. No command

line options are supported. This program might be useful for

implementing wrappers.

train-tree-tagger <lexicon> <open class file> <input file> <output file> 

            {-cl <context length>} {-dtg <min. decision tree gain>}

            {-ecw <eq. class weight>} {-atg <affix tree gain>} {-st <sent. tag>}

  itself followed by a Tab character and a sequence of tag-lemma pairs.

  The tags and lemmata are separated by whitespace.

abandon	VB abandon VBP abandon

abandoned	JJ abandoned VBD abandon VBN abandon

  Remark: The tagger doesn't need the lemmata actually. If you do not have

  the lemma information or if you do not plan to annotate corpora with

  lemmas, you can replace the lemma with a dummy value, e.g. "-".

* <open class file>: name of a file which contains a list of open class

  tags i.e. possible tags of unknown word forms separated by whitespace.

  Punctuation marks are considered as tokens and must have been tagged as well.

  The default value is 0.7.

  estimates. The default is 0.15.

The accuracy of the TreeTagger is usually slightly improved, if different

settings of the above parameters are tested and the best combination is

chosen.

tagger developed by Helmut Schmid. All rights are reserved by Helmut

Schmid.

- bin/separate-punctuation program for tokenization (used by the shell scripts)

http://www.cis.uni-muenchen.de/~schmid/tools/TreeTagger