基于字序列标注的中文关键词抽取研究

以某大学图书馆的所有馆藏书目为研究对象,在对图书关键词标引信息进分析的基础上,总结中文关键词的基本特点及其抽取规律,构建一个基于字序列标注的中文关键词抽取模型,提出中文关键词抽取的基础思路和实现方案,并通过实验论证模型的合理性、正确性和实用性,认为字序列标注方法优于词序列标注,基本上可以解决不分词情况下的中文关键词抽取问题。

Research on Chinese Keywords Extraction Based on Characters Sequence Annotation

Based on the whole Chinese booklist of a certain university library as well as the analysis of its book indexing information,the paper summarizes the features and extracting laws of Chinese keywords,and establishes a Chinese keywords extraction model based on characters sequence annotation,which proposes the basic idea and implementation scheme for extracting keywords.It verifies the feasibility,rationality and practicality of the model by large - scale experiments, and basically solves the problems of Chinese keywords extraction without executing words segmentation,which shows that characters sequence annotation is better than words sequence annotation.