关键词: 区间概念格, 区间参数, 格结构更新, 区间关联规则, 规则优化

Abstract: Interval concept lattice theory is a new method of mining objects based on interval parameters. It can accurately deal with uncertain information. The interval parameters[[α,β]]determine interval concepts and structure of lattice, then affect interval association rules. For the control and optimization of association rules, it firstly puts forward updating algorithm of concept lattice structure based on the change of parameters. With the change of interval parameters by equal step, it updates the original lattice structure. Secondly it mines association rules on the basis of interval concept lattice, and finds the complicated relationship between interval parameters and association rules to control and optimize rules, at the same time rule base optimization algorithm is proposed. Finally it uses the example with decision formal context to verify the relationship between association rules and interval parameters.

Key words: interval concept lattice, interval parameters, update of lattice structure, interval association rule, rule optimization