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WordNet Enhancements: Toward Version 2.0

WordNet Enhancements: Toward Version 2.0. WordNet Connectivity Derivational Connections Disambiguated Definitions Topical Connections. WordNet Connectivity. WordNet is a lexical database of English nouns, verbs, adjectives, and adverbs

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WordNet Enhancements: Toward Version 2.0

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  1. WordNet Enhancements:Toward Version 2.0 • WordNet Connectivity • Derivational Connections • Disambiguated Definitions • Topical Connections

  2. WordNet Connectivity • WordNet is a lexical database of English nouns, verbs, adjectives, and adverbs • Entries are lexicalized concepts that consist of one or more synonyms, a definitional gloss, and links to semantically related entries • Links are to antonyms, superordinates, parts, entailments • WordNet contains 133,000 different word-forms that are organized in 111,000 different entries

  3. WordNet • WN is a lexical database for English nouns, verbs, adjectives, and adverbs • A WN entry is a concept consisting of one or more synonyms, a definitional gloss, and two-way semantic links to related entries • Links are to antonyms, subordinates, parts, entailments • WN now contains 138,000 word-forms that are organized into 111,000 entries

  4. Derivational Connections • WordNet is widely used for computational linguistics although there are no links between morphologically related nouns and verbs • There is no link from digest to digestion so stemming is required to relate “he digested the food” and “his digestion of the food” • It is proposed to add links between morpho-semantically related nouns and verbs

  5. Derivational Relations • Homographs: noun and verb have the same spelling: foil • Deverbal Nouns: noun is derived from a verb: demonstration from demonstrate • Denominal Verbs: verb is derived from a noun: motivate from motive • Miscellaneous: grow and growth

  6. Ambiguity • Demonstrate and demonstration both have more than one meaning • Links must be inserted between meanings that match: demonstrate meaning ‘to protest publicly’ should NOT link to demonstration meaning ‘a proof by argument or inference’ • Approximately 20,00 links are required

  7. Disambiguated Definitions • Each WN entry has a definitional gloss • The words in a gloss can be ambiguous • To disambiguate the glosses, two-way links will be inserted manually between the word in the gloss and its context-appropriate meaning in WN • More than 500,000 links will be required

  8. Topical Connections • Topical access to WN will be provided by creating lists of lexicalized concepts that frequently co-occur in discussions of a given topic • Some WordNet entries contain references to specialized topics (astronomy, law, music, etc.) which will be linked to the appropriate WN entries

  9. Topical Connections (cont.) • Once the glosses are disambiguated, all the entries associated with a topic can be found by searching the glosses for synonym sets in which the disambiguated name of the topic occurs • Users should be able to customize WN for topics of special interest to them

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