To understand and apply dialectics correctly,people must start from conceptual aspect,from the unity of dialectics and basic philosophical problems,from the unity of thinking content and form,and from the critical nature of di.

Within the framework of Cognitive Grammar, this paper proposes that previous studies have failed to distinguish nominalizations in different levels of conceptual organization.

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.