Download Related Terms Search In Wiki Resources

RCDL'2009
Related terms search based
on WordNet / Wiktionary
and its application in
ontology matching
St. Petersburg Institute
for Informatics and Automation of RAS
Jönköping University, Sweden
Feiyu Lin, A. Krizhanovsky (andrew.krizhanovsky at gmail.com)
Contents
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Wiki and Wiktionary intro
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MRD, parser and Wiktionaries comparison
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Correlation of relatedness measures
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Experiment scheme
Result and comparison
Results, applications and future
2
Goal

Is it possible to find related terms by the
current version of Wiktionary
as successfully as by WordNet?

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
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for ontology matching,
for application in text search systems,
etc.
What advantages?
Wiki-resources

Distributed users and authors (edit pages)
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Centralized storage (e.g. MySQL, Apache, PHP)
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Set of hyper linked articles
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Each article has one or more categories (tree)
* Example: http://en.wikipedia.org
4
Wiktionary is
a free-content
multilingual
dictionary
Wiktionary data: +, -,
simplicity & complexity
+ Rich data
+ thesaurus
(synonyms, antonyms )
+ phrase books
+ etymologies
+ pronunciations
+ sample quotations
+ translations
+ Fast growing data
+ Interwiki (add. data)
+ GNU DFL
− Different
wiktionaries have
different levels of
standartization.
− Fast growing data,
but it’s created by a
huge community
(a developed parser
should be very stable)
6
Wiktionary
machinereadable
dictionary
database
scheme
7
Size of Wiktionaries
WordNet (2006): 150,000 words, 115,000 synsets
A shortest path in Russian
Wiktionary
Correlation of relatedness
measures
Correlation with
human judgments
of relatedness
measures 353-TC
to measures based
on WordNet,
English Wikipedia,
Russian
Wiktionary
Largest eight Wiktionary
editions (March 2008)
Application of Machinereadable dictionary (MRD)
Thesaurus data:

Related Terms Search

Search request extension (by synonyms) / request
reformulation (in search systems)

Request recognition in question-answering systems

Word sense disambiguation
Media data (audio + pictures)

Language learning
Work plan: done and todo
Russian Wiktionary
• Extraction (by RE)
–
–
–
–
–
Definition
Relations (synonyms…)
Translation
Audio
Graphics
• Database API
• Visualization
(MRD browser)
• Quiz & tests
(test application)
Russian Wiktionary
• Database scheme
–
–
–
–
–
Definition
Relations (synonyms…)
Translation
Audio
Graphics
• Database API
English Wiktionary
Implementation
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Software based on Synarcher code
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Java

MySQL or SQLite database
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JUnit test framework
15
Results
The scheme of the experiment for calculating
the semantic relatedness measure based on
Russian Wiktionary data
 The parser of Russian Wiktionary
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Database scheme designed
Database API implemented in Java

Compared the results of related terms search
based on Wiktionary and WordNet
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Project site (Wiki tool kit)
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http://code.google.com/p/wikokit/
16
Future work

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Finish creation MRD
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Database and software
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Russian Wiktionary and English Wiktionary
Visualization (JavaFX)
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MRD browser
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Quiz & tests (learning application)
Online application (Java Web-start)
Thank you!