Research on appraising system of tourism geological resources based on structure of concept hierarchy;

Personal recommendation algorithm based on concept hierarchy;

Application of association rule in repast industry business database based on the concept hierarchy

The algorithm of generating concept hierarchy of digital field;

New concept hierarchy optimization method in attribute-oriented induction;

Contrast research of Chinese domain ontology concept hierarchy induction methods

Research on Data Mining Algorithm Based on Conception Hierarchy Tree and Its Application;

A high-speed mining algorithm for multiple-leveled association rules is imposed in this paper, which uses samples to mining from a cer-taim intermediate level of the conception hierarchy, to increase speed of mining.

When primitive databases accessed are either undesirable or unavailable, this model can return approximate answers using generalized databases and concept hierarchies stored at mobile units.

The method and process of analyize are shown from dada pretreatment including property concept hierarchies to building decision tree based on information gain in detail.

This paper briefly introduces the technique of data mining and the concepts of census,expatiates the concept hierarchies,its algorithm and the composition,high dynamic process and data′s characteristics are analysed in detail,and applies it to the data of census.

Multi-level association rule is the rule with the characteristics of concept hierarchies.