Natural language processing. Main concepts. Examples. Problems

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DEFINITIONS OF MAIN CONCEPTS Natural language – our normal language (like

DEFINITIONS OF MAIN CONCEPTS

Natural language – our normal language (like English)

which can contain certain constructions and ambiguities that will not be able to parse and analyze by computer.
Artificial language - the language which is generated by machine based on certain rules, or a set of texts and proposals that can easily examine and disassemble by machine.
“Natural language understanding” in most cases reduced to interpretation part of language analysis.
“Natural language processing”- a concept which primarily includes both interpretation and generation of language.
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MAIN PARTS OF NLP Signal Processing Parsing Semantic analysis Pragmatics

MAIN PARTS OF NLP

Signal Processing
Parsing
Semantic analysis
Pragmatics

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KNOWLEDGE THAT ARE USED IN NLP Phonetic and phonological knowledge: Morphological

KNOWLEDGE THAT ARE USED IN NLP

Phonetic and phonological knowledge:
Morphological knowledge
Syntactic knowledge
Semantic

knowledge
Pragmatic knowledge
Discourse knowledge
World knowledge
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SYNTACTIC ANALYSIS EXAMPLE Building phrase tree

SYNTACTIC ANALYSIS EXAMPLE

Building phrase tree

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PROBLEMS IN NLP Non-standard language Segmentation issues Idioms Tricky entity names

PROBLEMS IN NLP

Non-standard language
Segmentation issues
Idioms
Tricky entity names