CS5604 Review

IR Topics (to characterize expertise for SIGIR'99)

Outline

• Motivation
  • Basic human need for information
  • Information explosion, growth of literature
  • Commercial import of knowledge
  • Luhn, Cleverdon, Salton - automatic better than manual
• Evaluation
  • Recall and precision: defns, relationship
  • Test collections
  • TREC
  • Averaging
  • Statistical significance
• Models
  • Boolean
  • Vector space
    • Indexing process
      • Lexical analysis
      • Stop words
      • Weighting: TF, IDF, DV
      • Inverted file
    • LSI
  • Probabilistic
  • Inference
    • Inquery
    • Rubric / Topic
  • AI
    • NLP
    • Expert systems
    • Knowledge bases
  • Improvements
    • Transformations related to frequency
    • Recall enhancing devices
    • Precision enhancing devices
    • Feedback
      • Rocchio
      • Ide
      • Probabilistic
      • Estimation
      • Contingency table
    • Query expansion
    • Integration of sources
    • Interfaces
    • Thesauri
    • Phrases
• Multimedia
  • Audio: speech, sound
  • Images
  • Video
• HCI
• Clustering
  • Terms
  • Documents
  • Browsing, linking
  • Hypothesis