Comparison of data reduction method and analyses of error in reverse engineering

Introduces the types of cloud data, the functions and significance s of data reduction in reverse engineering. Analyzes and compares errors of every kind of reduction methods and corresponding reduction functions in RE software o n the basis of implementing the commonly used algorithms of data reduction in Vi sual C++. Proposes a new kind of data reduction method based on the thinking o f second-scan ,get the relationship between reduction error and parameter of ar ithmetic, presents the flowchart of it finally.