基于模板的对几种特殊结构句子的语句改写

Paraphrasing of Several Special Sentence Structure Based on Templates

通过对大量汉语句子进行考察和结构分析,抽出以关键词为核心的改写模板,对具有一定结构特点的语句进行改写。通过相似度计算进行改写模板与相应改写句的匹配。通过合并修饰词并用变量替换把体现句子结构的关键词及结构辅助词固化在模板中,既实现了句子级的结构精确匹配又提高了模板的覆盖率。通过实验对方法进行了考察,并给出了改写的模板覆盖率和改写正确率,分别为66.34%和74.71%。

By analyzing and studying the structure of large amount sentences in Chinese, extracting paraphrasing templates based on keywords, which can be used to paraphrase some sentences with special structure. Matching of paraphrasing template with sentences through calculating similarity of paraphrase sentence with paraphrasing template. With fixing keywords and structure auxiliary words which reflect the structure of sentences in the templates and combining the qualifier and replacing them using variable,it has achieved exactly structural matching in sentence level and has enhanced the coverage of the templates. To evaluate performance of the method,experiments have been done and the coverage rate of template and precision of paraphrasing are 66.34 % and 74.71% respectively.