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Types of Words Open-class, content words: ● Nouns (shoe, tablecloth, cause, E-insertion…) ● Verbs (see, walk, cause, forget, promise, …) ● Adjectives (big, small, reliable, three-legged, …) ● Adverbs (quickly, well, reliably, …) Function (closed-class) words » prepositions, determiners etc See J&M, sect 8.1 Computing Science, University of Aberdeen
Lexicons ● Lexicons are databases of word information. ● “Dictionary” of NLP system ● A good lexicon is critical to performance » “the system with the bigger lexicon always wins” Computing Science, University of Aberdeen
Page 1: CS4025: Morphology and the Lexicon
Page 5 and 6: Word Information An NLP system need
Page 7 and 8: Word Meaning ● What do these word
Page 9 and 10: 1. Network of words and senses Comp
Page 11 and 12: Lexicon Structure ● Object-orient
Page 13 and 14: Computing Science, University of Ab
Page 15 and 16: Noun Inflections ● Nouns are infl
Page 17 and 18: Verb Inflections ● Tense and aspe
Page 19 and 20: Irregular forms ● Some words have
Page 21 and 22: Implementation - 1: stemming ● St
Page 23 and 24: Finite State Automatons Computing S
Page 25 and 26: Properties of Finite State Automato
Page 27 and 28: FST for plurals with empty characte
Page 29 and 30: Morphology as tape-tape mapping TAP
Page 31 and 32: Parallel FSTs for morphology (Can c
Page 33 and 34: Specialised Dictionaries http://www
Page 35: Introduction to Python ● Lists:

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