Online marking has been gradually used in large-scale selective examination by its own merits, but it has several problems, such as single form of objective questions recognition technology, high accurate printing and cutting of the answer sheet.

In this paper,we design 4 groups of experiments to analyze the impact of context information in subjectivity detection.

Subjective and objective method of solving interval DEA;

Mechanism of low-resistivity reservoir and identification method of curve shape in Qudi Oilfield;

Molecular construction of Al~(3+) cross-linked polyacrylamide gel and its identification method;

A flexural rigidity modal identification method for long-span continuous girder bridge;