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The Dream
It¡¯d be great if machines could
Process our email (usefully)
Translate languages accurately
Help us manage, summarize, and aggregate information
Use speech as a UI (when needed)
Talk to us / listen to us
But they can¡¯t:
Language is complex, ambiguous, flexible, and subtle
Good solutions need linguistics and machine learning knowledge
So:
What is NLP?
Fundamental goal: deep understand of broad language
Not just string processing or keyword matching!
End systems that we want to build:
Ambitious: speech recognition, machine translation, information extraction, dialog interfaces, question answering, trend finding ¡¦
Modest: spelling correction, text categorization¡¦
Speech Systems
Automatic Speech Recognition (ASR)
Audio in, text out
SOTA: 0.3% for digit strings, 5%¡¦(»ý·«)
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