Representing and Processing Medical Knowledge Using Formal Concept Analysis

M. Schnabel

doi:10.1055/s-0038-1634301

Methods of Information in Medicine, Table of Contents

Methods Inf Med 2002; 41(02): 160-167
DOI: 10.1055/s-0038-1634301

Original Article

Schattauer GmbH

Representing and Processing Medical Knowledge Using Formal Concept Analysis

Authors

M. Schnabel

¹Institute of Medical Statistics and Epidemiology, Technical University Munich, Germany

Abstract

Summary

Objectives: The aim is to show the flexibility, adequateness, and generality of formal concept analysis (FCA) applied to expert systems in medicine.

Methods: The basic idea of formal concept analysis is to look at a set of objects together with their attributes (formal context) under a definite mathematical view. This view leads to a mathematical structure, a complete lattice, which can be represented graphically.

Results: Some examples show that this method is very general and can be used to describe diseases, relationships between diseases and findings, the inference process, and, among others, types of uncertainty. For many applications, the adequateness of this method, concerning the underlying semantics, can easily be made plausible.

Conclusions: FCA can be used to analyze data that can be described by objects and attributes of any kind. The selected examples (diseases, patient cases, therapeutic decisions, rules) show the usefulness of this method. Although it is not difficult to transform the relevant semantics into a formal context in many cases, much more experience is necessary.

Keywords

Knowledge representation - computer-assisted medical decision making - formal concept analysis - inference algorithms - expert systems

Full Text

References

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