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Natural Language Processing (Challenges (syntax, semantics, lexicon,…
Natural Language
Processing
Definition
A set of computational techniques
for analyzing and representing
naturally occurring texts (at one or
more levels) for the purpose of
achieving human-like language
processing for a range of
applications.
Understanding
Linguistics
focuses on formal, structural models of language and the
discovery of language universals
Computer Science
concerned with developing internal
representations of data and efficient processing of these structures.
Challenges
syntax
semantics
lexicon
morphology
phonology
discourse analysis
pragmatics
History
Machine Learning
Solved Cases
Open character recognition
Scanning, passwords
Named entity recognition
English Chinese tonal
language mighty difficult
Using Hidden Markov Models to figure probability of
sequences
Difficulties
Paraphrase
Summarise
Dialogue