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NATURAL LANGUAGE PROCESSING (Common sense (Understanding the world)…
NATURAL LANGUAGE PROCESSING
History
1954s
Georgetown experiment - auto translation from Russian to English
Prediction "Machine translation solved in a few years"
Needs semantics, grammar, real world knowledge
1960s
Eliza (Weizenbaum) psychotherapist
Restricted vocabulary set
Works in "Blocks world"
1970s
Conceptual ontologies - the nature of being
Programs structure real-world info into computer understandable data
Chatter-bots - Jabber wacky, Alice
1980s
Complex hand written (Programmed) rules
Computational power increased
Machine learning algorithm
1950s
Turning "Computer machinery & Intelligence" test
What is language?
Collaboration
Co-creation
Conversation
Communication
NLP
Language & Linguistics
Morphology
Lexicon
Phonology
Syntax
Semantics
Discourse analysis
Computer science
Common sense (Understanding the world)
Logical variations
Replicate human thinking
Common sense - logic
World knowledge
NL understanding
Sentence breaking
Word segmentation
Topic segmentation & Recognition
Challenges
Mostly solved
Open character recognition, scanning, password (OCR)
Named entity recognition
Spam
Part-of-speech (POS) tagging
Really hard
QA
Paraphrase
Summarize, Dialogue
Good progress
Sentiment analysis
Co-reference resolution
Parsing
Grammatical analysis of sentence - ambiguous
Information extraction
Google calender
Syntax
Translation
What is AI capable of?
Machine learning