1. NATURAL LANGUAGE PROCESSING 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 ??