https://github.com/AKuznetsov/russianmorphology

Russian Morphology for Lucene
https://github.com/AKuznetsov/russianmorphology

java lucene morphology russian-morphology solr

Last synced: 6 days ago
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Russian Morphology for Lucene

• Host: GitHub
• URL: https://github.com/AKuznetsov/russianmorphology
• Owner: AKuznetsov
• License: apache-2.0
• Created: 2014-03-05T06:23:41.000Z (about 12 years ago)
• Default Branch: master
• Last Pushed: 2022-09-28T12:03:55.000Z (over 3 years ago)
• Last Synced: 2023-08-17T07:06:00.618Z (over 2 years ago)
• Topics: java, lucene, morphology, russian-morphology, solr
• Language: Java
• Homepage:
• Size: 9.89 MB
• Stars: 88
• Watchers: 14
• Forks: 46
• Open Issues: 8
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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• awesome-java - Russian Morphology

README

          
# Russian Morphology for Apache Lucene

Russian and English morphology for Java and [Apache Lucene](http://lucene.apache.org) 9.3 framework based on open source dictionary from site [АОТ](http://aot.ru). It uses dictionary base morphology with some heuristics for unknown words. It supports a homonym for example for a Russian word "вина" it gives two variants "вино" and "вина".

### How to use

Build project, by running `mvn clean package`, this will provide you the latest versions of the artifacts - 1.5, add it to your classpath. You could select which version to use - Russian or English.

Now you can create a Lucene Analyzer:

      RussianAnalayzer russian = new RussianAnalayzer();

      EnglishAnalayzer english = new EnglishAnalayzer();

You can write you own analyzer using filter that convert word in it's right forms. 

      LuceneMorphology luceneMorph = new EnglishLuceneMorphology();

      TokenStream tokenStream = new MorphlogyFilter(result, luceneMorph);

Because usually LuceneMorphology contains a lot data needing for it functionality, it is better didn't create this object for each MorphologyFilter.

Also if you need get a list of base forms of word, you can use following example 

     LuceneMorphology luceneMorph = new EnglishLuceneMorphology();

     List wordBaseForms = luceneMorph.getMorphInfo(word);

### Solr

You can use the LuceneMorphology as morphology filter in a Solr _schema.xml_ using a **MorphologyFilterFactory:**

```xml

      

        

		

		

      

```

Just add _morphology-1.5.jar_ in your Solr lib-directories

### Restrictions

  

  * It works only with UTF-8.

  * It assume what letters е and ё are the same.

  * Word forms with prefixes like "наибольший" treated as separate word. 

### License

Apache License, Version 2.0