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NATURAL LANGUAGE PROCESSING

NATURAL LANGUAGE PROCESSING. AN AI TASK DOMAIN. TASK DOMAINS OF AI. Games Playing Expert Systems Natural Language Neural Networks Robotics. INTRODUCTION TO NLP.

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NATURAL LANGUAGE PROCESSING

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  1. NATURAL LANGUAGEPROCESSING AN AI TASK DOMAIN

  2. TASK DOMAINS OF AI • Games Playing • Expert Systems • Natural Language • Neural Networks • Robotics

  3. INTRODUCTION TO NLP • What is NLP? “ The spirit is willing but the flesh is weak ” “ The vodka is good but the meat is rotten ” • Why is NLP so hard? “ Is there water in the fridge ..?” • ELIZA

  4. STEPS IN THE PROCESS OF DEVELOPING A NLP • Morphological Analysis • Syntactic Analysis • Semantic Analysis • Discourse Integration • Pragmatic Analysis

  5. FINITE STATE AUTOMATA

  6. MORPHOLOGICAL ANALYSIS • Morpheme • Inflection

  7. SYNTACTIC ANALYSIS • Adequacy 1) Mathematical Adequacy 2) Notational Adequacy • Limitations of FSA

  8. CONTEXT FREE GRAMMARS • Characteristics of CFG dealt with an example “They are flying planes” • S -> NP VP • VP -> verb_group NP • VP -> verb NP • verb_group -> aux verb • NP -> pronoun • NP -> noun • NP -> adj noun • adj -> flying • aux -> are • noun -> planes • pronoun -> they • verb -> are • verb -> flying

  9. TOP DOWN STRATEGY

  10. BOTTOM UP SEARCH STRATEGY

  11. SEMANTIC ANALYSIS • Lexical Processing “ John saw Susan’s diamond shimmering from across the room” • Lexical Ambiguity

  12. DISCOURSE AND PRAGMATIC ANALYSIS • “John had cold. His brother caught it” • lpr/stuff.init

  13. CONCLUSION

  14. PRESENTED BY • NAGINI INDUGULA (4/4 CSE) 98311A0515 Sree Nidhi Institute of Science and Technology Hyderabad

  15. BIBLIOGRAPHY

  16. ?? QUESTIONS ??

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