To make full use of the feature information of signals in feature extraction fo r target recognition and classification, this paper discusses establishment and feature compression of raw feature space.

The problem of feature compression in high-resolution radar target recognition is studied.

Firstly, a feature compression method, which has a changeable factor used to adjust the feature compression ratio, is applied to compress feature vectors with a high compression ratio.

The character and data feature of the fuel pressure wave for diesel engine;

In order to overcome the difficulties in constructing kernel function with data feature for current su-pport vector machines(SVMs),this paper constructs three new kernel functions by reconstructing the similarity surface of data samples.

Event stream is a new kind of analysis application on massive data which enter the system in real-time and data characteristics are important components of workload modeling to evaluate specific system.

The uniformity between the statistic analysis result of industrial control modeling and the theory knowledge caused by data characteristics is analyzed,which enable people to gain overall understanding of the statistic modeling and deal with the statistic analysis result rationally.