The following slides introduce various information retrieval methods.

Slide 6.1: Information retrieval (IR)
Slide 6.2: Information retrieval (cont.)

Slide 6.3: The three data types
Slide 6.4: A problem of data processing
Slide 6.5: File processing
Slide 6.6: Database processing
Slide 6.7: Pros and cons of using file systems

Slide 6.8: Automatic text processing
Slide 6.9: Lexical analysis
Slide 6.10: Lexical analysis (cont.)

Slide 6.11: Removing stopwords
Slide 6.12: Removing stopwords (cont.)

Slide 6.13: Performing stemming
Slide 6.14: Performing stemming (cont.)
Slide 6.15: Performing stemming (cont.)
Slide 6.16: Performing stemming (cont.)

Slide 6.17: Synonym matching
Slide 6.18: Synonym matching (cont.)

Slide 6.19: Inverted indexes
Slide 6.20: Inverted indexes (cont.)

Slide 6.21: Data classification and data clustering
Slide 6.22: Data classification based on decision trees
Slide 6.23: Web classification using modified decision trees
Slide 6.24: Data clustering methods
Slide 6.25: Data clustering methods (cont.)
Slide 6.26: Signature files

  ☂ References

Slide 6.a: Information retrieval book
Slide 6.b: Introduction to information retrieval








      Husband & his wife went for divorce at court    
      Judge: “U have 3 kids ... How will u divide them?”    
      He had long discussion with his wife & said:    
      “OK, sir, we will come next year with 1 more.”