Current Slide

Small screen detected. You are viewing the mobile version of SlideWiki. If you wish to edit slides you will need to use a larger device.

Concept Hierarchy Generation for Nominal Data

  • Specification of a partial/total ordering of attributes explicitly at the schema level by users or experts
    • street < city < state < country
  • Specification of a hierarchy for a set of values by explicit data grouping
    • {Urbana, Champaign, Chicago} < Illinois
  • Specification of only a partial set of attributes
    • E.g., only street < city, not others
  • Automatic generation of hierarchies (or attribute levels) by the analysis of the number of distinct values
    • E.g., for a set of attributes: {street, city, state, country}

Speaker notes:

Content Tools

Sources

There are currently no sources for this slide.