The only limits you see are the ones you impose on yourself. Dr. Wayne Dyer
Idea Transcript
Professional Education in Language Technologies
Natural Language Processing 2: Core Techniques Eduard Hovy CMU www.cs.cmu.edu/~hovy
Overview 1. Tagging 2. Grammars and parsing 3. Seman6c roles and labeling
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1. TAGGING (FOR PART OF SPEECH, ETC.) 2
1.1 Parts of Speech: Why make word classes? The organiza,on rose to great heights DET NOUN VERB TO ADJ NOUN Replace with any NOUN to s6ll be gramma6cal English: sausage block idea dream
Replace with any VERB to s6ll be gramma6cal English: flies cleaned argues ate 3
Parts of Speech • Noun: any abstract or concrete en6ty; a person (police officer, Michael), place (coastline, London), thing (neck,e, television), idea (happiness), or quality (bravery). Usually separated into – Proper Noun (name or a person, place, organiza6on..) – Common Noun (en6ty, not a unique name)
Pronoun: any subs6tute for a noun or noun phrase (he, our) Adjec