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Word Senses (Relation
Between Senses (Antonyms
Two different words have…
Word Senses
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Between Senses
Homonym
- Same spelling/pronunciation, Different meanings
- bank, bat
Homographs
- Same spelling, [Different] pronunciation, Different meanings
- bow /bəʊ/ & /baʊ/
Homophones
- Same pronunciation, Different Meanings
- new, knew /njuː/
Polysemy
- Capacity of word/phrase to have multiple related meaning
- Count -- to say number; to calculate; total
Relation
Between Senses
Antonyms
- Two different words have non-identical senses
Meronyms
- Word that is a part-whole relation.
- Wheel is part of a car
Synonyms (Synset)
- Two different words have identical senses
Hypernyms
- Broader than that of a hyponym
- Color is hypernyms
Hyponyms
- Word that included within that of another word
- Red, blue, green is hyponyms
Thesaurus
Method
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Intuition
- Word senses are more similar if there is a shorter path between them in the thesaurus graph.
Path Length
\(path(c_1,c_2) \) = 1 + number of shortest edge path
Path-length based Similarity
\(sim_{path}(c_1, c_2) = \frac{1}{pathlen(c_1,c_2)} \)
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