Use of WordNet and on-line dictionaries to build EN-SK

synsets(experimental tool)

Ján GENČI

Technical University of Košice, Slovakia

genci@tuke.sk

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Plan

• WordNet, EuroWordNet + Slovak language

• Motivation

• Solution

• Results

• Future plans

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WordNet, EuroWordNet

• Well known projects• WordNet defines meaning of English words

and their relationships (it defines synsets)• EuroWordNet (EWN) is very similar

multilingual project

• EWN doesn’t contain Slovak language (Slovak WN)

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Motivation

• Text classification tasks require reduction of dimensionality and Intelligent search – Morphological database– Something like WordNet

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Our approach

• We decided to try to use on-line dictionaries to map Slovak meanings to Wordnet synset entries

• Two approaches:– Intersection of translation of each member of

EN synset– Intersection of translation of related words

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Architecture

Input word

WordNet DB local DB

Synset

Builder

Inetonline dict.

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Synset “members” translation

• According WN word computer has 2 meanings specified by 2 synsets– {computer, computing machine,computing device,

data processor,electronic computer, information, processing system}

– {calculator, reckoner, figurer, estimator, computer}

• Result is formed as intersection of translation of synset members

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Translation of related words

• Based on hyponym/hyperonym relationship between words:– Related words are translated– Result is formed as intersection of partial

translations

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Results

• We provide 4 Slovak and 2 Czech on-line dictionaries (Slovak dictionaries seem to be from one source)

• Result depends on:– Number of members in the synset (1 is

problem)– Related words– Quality(?) of dictionary

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Results (cont.)

• Parts of speech are sometimes mixed (nouns and adjectives)

• We implemented “multilingual view”

• Time consuming approach (quite slow) – results are stored to the database

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Examples

word computer

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Example

word table

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Future works (plans)

• To deal with “dictionary problem”

• To eliminate mixed parts of speech in the results (at least for Slovak language, using morphological database)

• To connect other languages

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• Local copy of new webpage

• Addresses– http://ruzin.fei.tuke.sk/~laposp– http://ruzin.fei.tuke.sk/~sudynova (new one)

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Thank you!