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Natural Language Processing (Applications (Text Categorization, Extracting…
Natural Language Processing
History
Turing Test-1950s
Conceptual Ontologies-1970s
Machine Learning Algorithm-1980s
George Town Experiment-1954
Eliza-Psychotherapist-1960s
Goal
Communication
Perception
Analysis
Incorporation
Components
Natural Language Generation (NGL)
Natural Language Understanding(NLU)
Challenges
Phonology: sounds pattern and its meaning
Morphology: words formation and its relationship with eachother
Lexicon: searching word in Corpora or thesaurus for its antonyms or synonyms
Syntax: Grammatical Structures
Pragmatics: using language in context
Discourage Analysis: Conveying possible meaning by making connection with sentences
Input/Output
Speech
Written Text
Steps
Lexical Analysis
Syntactic Analysis
Semantic Analysis
Discourse Integration
Pragmatic Analysis
References
Optical Character Recognition (OCR)
Named Entity Recognition (NER)
Part of Speech (POS)
Applications
Text Categorization
Extracting data from text
Database Access
Information Retrieval
Machine Translation
Language Modelling
Speech Recognition
Document Summarization
Question Answering
Caption Generation