DeleteMe after 2006-10-08 -- Moved to CategorizationModels
I couldn't find any wiki pages on general classification techniques, so I created one. (There is a topic called "CategoryTheory", but it's name overlaps with the wiki category framework system, so it gets lost in the shuffle.) [Oops: found CategorizationModels. Guess I gotta work on a merge]
Classification is a way to identify items so that they are easier to find and easier to relate to each other. Here are some of the common techniques:
Item: "Perkins Lab Coat #6" Categories ----------- Medical Supplies: 1.0 Scientific Supplies: 1.0 Clothing: 0.8 Safety Equipment: 0.4 Halloween Supplies: 0.3 See Also: -------------- JVM medical washing machine: 0.9 Perkins all-in-one surgery kit: 0.6Weights are assumed to be zero to one. In practice, this could be implemented with a RDBMS using two many-to-many tables with weights.
[1] AmericanCulturalAssumption: "Cadillac" used to be the most expensive car. Imports generally have taken over this niche, but the phrase has remained.
--top