Content Gathering (2)

• Techniques

  • Search Engines
    • Crawling: Topic distillation, Classification, User preferences
    • Presentation: Automatic classification/refinement
    • XML helps here to get “behind the peephole”
  • Extraction
    • Wrapper templates
    • Summarize and correlate documents (feature selection)
  • Steady progress, but unrelated to warehouse infrastructure

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