Research of Duty Information Extraction in Chinese Based on Decision Tree
Shunan Ma · Journal of Kunming University of Science and Technology · 2009
Based on the named entity recognition research,duty information extraction is taken as a question of classification first,that is,information extraction mode is classified by duty verb in Chinese sentences.Decision tree is used to select appropriate extraction mode,which solves the problem of duty information extraction.A Chinese duty information extraction system based on the decision tree is thus realized.For an open test,its average recall rate is 91.47% and average precision is 89.15%.Experimental results show that the information extraction method based on decision tree is worth to continue for further research.