README

Task Definition

Morphological disambiguation is the problem of selecting accurate morphological parse of a word given its possible parses. These parses are generated by a morphological analyzer. In morphologically rich languages like Turkish, the number of possible parses for a given word is generally more than one. Each parse is considered as a different interpretation of a single word. Each interpretation consists of a root word and sequence of inflectional and derivational suffixes. The following table illustrates different interpretations of the word ‘‘üzerine’’.

üzer+Noun+A3sg+P3sg+Dat
üzer+Noun+A3sg+P2sg+Dat
üz+Verb+Pos+Aor+^DB+Adj+Zero+^DB+Noun+Zero+A3sg+P3sg+Dat
üz+Verb+Pos+Aor+^DB+Adj+Zero+^DB+Noun+Zero+A3sg+P2sg+Dat

As seen above, the first two parses share the same root but different suffix sequences. Similarly, the last two parses also share the same root, however sequence of morphemes are different. Given a parse such as

üz+Verb+Pos+Aor+^DB+Adj+Zero+^DB+Noun+Zero+A3sg+P3sg+Dat

each item is separated by ‘‘+’’ is a morphological feature such as Pos or Aor. Inflectional groups are identified as sequence of morphological features separated by derivational boundaries ^DB. The sequence of inflectional groups forms the term tag. Root word plus tag is named as word form. So, a word form is defined as follows:

IGroot+IG₁+^DB+IG₂+^DB+...+^DB+IG_n

Then the morphological disambiguation problem can be defined as follows: For a given sentence represented by a sequence of words W = w₁ⁿ = w₁, w₂, ..., w_n, determine the sequence of parses T = t₁ⁿ = t₁, t₂, ..., t_n; where t_i represents the correct parse of the word w_i.

Data Annotation

Preparation

Collect a set of sentences to annotate.
Each sentence in the collection must be named as xxxx.yyyyy in increasing order. For example, the first sentence to be annotated will be 0001.train, the second 0002.train, etc.
Put the sentences in the same folder such as Turkish-Phrase.
Build the Java project and put the generated sentence-morphological-analyzer.jar file into another folder such as Program.
Put Turkish-Phrase and Program folders into a parent folder.

Annotation

Open sentence-morphological-analyzer.jar file.
Wait until the data load message is displayed.
Click Open button in the Project menu.
Choose a file for annotation from the folder Turkish-Phrase.
For each word in the sentence, click the word, and choose correct morphological analysis for that word.
Click one of the next buttons to go to other files.

Classification DataSet Generation

After annotating sentences, you can use DataGenerator package to generate classification dataset for the Morphological Disambiguation task.

Generation of ML Models

After generating the classification dataset as above, one can use the Classification package to generate machine learning models for the Morphological Disambiguation task.

Simple Web Interface

Link 1 Link 2

Annotated Datasets

Framenet & Tourism

Atis & Gb & Pud & Imst & Boun

Kenet

Penn-Treebank

Video Lectures

For Developers

You can also see Python, Cython, Java, C, C++, Swift, Js, or C# repository.

Php

To check if you have a compatible version of Php installed, use the following command:

php -V

You can find the latest version of Php here.

Git

Install the latest version of Git.

Download Code

In order to work on code, create a fork from GitHub page. Use Git for cloning the code to your local or below line for Ubuntu:

git clone <your-fork-git-link>

A directory called MorphologicalDisambiguation will be created. Or you can use below link for exploring the code:

git clone https://github.com/starlangsoftware/TurkishMorphologicalDisambiguation-Php.git

Open project with PhpStorm IDE

Steps for opening the cloned project:

Start IDE
Select File | Open from main menu
Choose MorphologicalDisambiguation-Php file
Select open as project option
Couple of seconds, dependencies will be downloaded.

For Contibutors

composer.json file

autoload is important when this package will be imported.

  "autoload": {
    "psr-4": {
      "olcaytaner\\WordNet\\": "src/"
    }
  },

Dependencies should be maximum (not only direct but also indirect references should also be given), everything directly in the code should be given here.

  "require-dev": {
    "phpunit/phpunit": "11.4.0",
    "olcaytaner/dictionary": "1.0.0",
    "olcaytaner/xmlparser": "1.0.1",
    "olcaytaner/morphologicalanalysis": "1.0.0"
  }

Data files

Add data files to the project folder. Subprojects should include all data files of the parent projects.

Php files

Do not forget to comment each function.

    /**
     * Returns true if specified semantic relation type presents in the relations list.
     *
     * @param SemanticRelationType $relationType element whose presence in the list is to be tested
     * @return bool true if specified semantic relation type presents in the relations list
     */
    public function containsRelationType(SemanticRelationType $relationType): bool{
        foreach ($this->relations as $relation){
            if ($relation instanceof SematicRelation && $relation->getRelationType() == $relationType){
                return true;
            }
        }
        return false;
    }

Function names should follow caml case.

    public function getRelation(int $index): Relation{

Write getter and setter methods.

    public function getOrigin(): ?string
    public function setName(string $name): void

Use standard javascript test style by extending the TestCase class. Use setup when necessary.

class WordNetTest extends TestCase
{
    private WordNet $turkish;

    protected function setUp(): void
    {
        ini_set('memory_limit', '450M');
        $this->turkish = new WordNet();
    }

    public function testSize()
    {
        $this->assertEquals(78327, $this->turkish->size());
    }

Enumerated types should be declared with enum.

enum CategoryType
{
    case MATHEMATICS;
    case SPORT;
    case MUSIC;
    case SLANG;
    case BOTANIC;

If there are multiple constructors for a class, define them as constructor1, constructor2, ..., then from the original constructor call these methods.

    public function constructor1(string $path, string $fileName): void
    public function constructor2(string $path, string $extension, int $index): void
    public function __construct(string $path, string $extension, ?int $index = null)

Use __toString method if necessary to create strings from objects.

    public function __toString(): string

Use xmlparser package for parsing xml files.

  $doc = new XmlDocument("../test.xml");

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