Difference between revisions of "Unigram tagger"

Revision as of 15:46, 14 January 2016

First, install all prerequisites. See Installation#If you want to add language data / do more advanced stuff. Then, replace <directory> with the directory you'd like to clone [m5w/apertium] into and clone the repository.

git clone https://github.com/m5w/apertium.git <directory>

This code's apertium-tagger implements the three unigram models in A set of open-source tools for Turkish natural language processing. See section 5.3.

See section 5.3.1. This model scores each analysis string in proportion to its frequency with add-one smoothing. Consider the following corpus.

^a/a<a>$
^a/a<b>$
^a/a<b>$

Passed the lexical unit ^a/a<a>/a<b>/a<c>$, the tagger assigns the analysis string a<a> a score of

f + 1 =
  (1) + 1 =
  2

and a<b> a score of (2) + 1 = 3. The unknown analysis string a<c> is assigned a score of 1.

If reconfigured with --enable-debug, the tagger prints such calculations to stderr.



score("a<a>") ==
  2 ==
  2.000000000000000000
score("a<b>") ==
  3 ==
  3.000000000000000000
score("a<c>") ==
  1 ==
  1.000000000000000000
^a<b>$

@@ Line 2: / Line 2: @@
 ==Install==
 First, install all prerequisites. See [[Installation#If you want to add language data / do more advanced stuff]].
-Then, clone the repository. (Replace <code>&lt;directory&gt;</code> with the directory you'd like to clone [[https://github.com/m5w/apertium m5w/apertium]] into.)
+Then, replace <code>&lt;directory&gt;</code> with the directory you'd like to clone [[https://github.com/m5w/apertium m5w/apertium]] into and clone the repository.
 <pre>
 git clone https://github.com/m5w/apertium.git <directory>
 </pre>
-Then, see [[Minimal_installation_from_SVN#Set_up_environment]].
+Then, see [[Minimal installation from SVN#Set up environment]].
 ==Unigram Models==