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