Structured Features from Concept Lattices for Unsupervised Learning and Classification

  • Authors:
  • Michael Bain

  • Affiliations:
  • -

  • Venue:
  • AI '02 Proceedings of the 15th Australian Joint Conference on Artificial Intelligence: Advances in Artificial Intelligence
  • Year:
  • 2002

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Abstract

We present a method for identifying potentially interesting and useful concepts in a concept lattice and revising the underlying formal context and the lattice it generates to invent new descriptors and extract their definitions. This allows the re-use of concepts in an incremental way. The approach is developed using formal concept analysis and inverse resolution operators for both a theory and its lattice. A consequence of using the concept lattice to represent the concept space is that both unsupervised and supervised approaches are enabled by using different concept evaluation measures. Results are given from experiments in two standard domains with a system called Conduce which implements the method.