Research of Chinese Clause Identificiton Based on Comma
Kunhua Zhu · Beijing Daxue Xuebao. Zirankexueban · 2013
According to the task of Chinese discourse analysis and practice,combined with traditional study,the authors propose clause as basic discourse unit and give its definition from the structure,function,form etc.The authors analyse the relationship between the comma and clause,and research clause identification using comma on annotation corpus.The corpus labeled whether each comma can be regarded as clause boundary information extract from CTB6.0,and have total of 2171 commas in 1348 sentences.The authors extract syntax,vocabulary,length features for experiment,and clauses identification accuracy can reach 90%.Nine greatest contribution features are chosen by information gain,they can obtain high clauses identification accuracy.Finally only using morphology feature,the accuracy can reach 84.5%.Experiments show that the definition of clause is reasonable and identification clause based on the comma is feasible.