关键词: 主题域划分, 主题域内距离, 主题域间距离, 主题域内夹角, 主题域间夹角

Abstract:

A subtopicfield segmentation technique based on the optimal control model was proposed, the object function of the optimal control model was constructed by the withinsubtopicfield distance, the betweensubtopicfield distance, the withinsubtopicfield angle and the betweensubtopicfield angle. By solving the optimal control model, optimal subtopicfield segmentation is obtained. The method independent of specific application is a global optimal method. The experiments show that this method is better than other methods in applicability, F1 measure and Window Diff measure.

Key words: subtopicfield segmentation, withinsubtopicfield distance, betweensubtopicfield distance, withinsubtopicfield angle, betweensubtopicfield angle