In the Declaration of Independence, the Founders didn't treat happiness as some fuzzy concept; they believed that people wanted happiness and had the right to pursue it.
The main jamming and anti-jamming measure of ground to air defense missile system is analyzed in this paper. There are shortage in the evaluated some fuzzy concept by using AHP.
Secondly, we studies the reduction of a fuzzy concept lattice in a fuzzy context by employing the variable precision concept under various precisions.
Next, a fast fuzzy conceptual clustering algorithm is proposed to cluster the fuzzy concept lattice into conceptual clusters.