Abstract
A new method for generation of an attribute hierarchical diagram is proposed in this paper, which is based on the hierarchical optimized formal context. Firstly, this paper introduces the method of hierarchical optimization of formal context. Then by using this method, optimize the formal context which extracts from a set of related syndromes occurring in spleen and draw the hierarchical diagram of attributes. Finally, mine useful knowledge from the hierarchical diagram of attributes based on the theory of knowledge representation. And the result shows that the method for discovering Traditional Chinese Medicine (TCM) diagnostic knowledge is feasible and effectual.