Abstract:

Focusing on improving the objectivity and accuracy of AHP(Analytic Hierarchy Process) in the data quality evaluation, improving to each level indexes assignment method of AHP, we use weighted quadrature relationship instead of weighted sum relationship between the higher index and the lower index, introduce an objective assignment method of expert scoring, assign the weights on the indexes matrix in the quality evaluation of 4G geological spatial integrated data. The comprehensive weights results of indexes matrix and the evaluation results are more objective reflect the quality of the integrated data compared to the results by typical AHP, and can provide the basis and quantitative reference for data quality control of G⁴I system.

Key words: 4G geological spatial data, data quality evaluation, analytic hierarchy process