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以引文上下文为研究对象,探讨来自于引文上下文、目标文献摘要以及目标文献自标医学主题词(下称主题词)三者间的符合程度,定量分析引文上下文在表征目标文献内容特征时的作用。以被Circulation杂志高频引证的5篇研究类论文作为目标文献,提取其施引文献的全部引文上下文,并对其进行分词及主题词匹配;将其结果与目标文献摘要提取的主题词以及文献自标的主题词进行两两比较。结果表明,引文上下文与目标文献摘要具有较高的符合度,而且在表征被引文献内容特征的效果上明显具有优势。
Taking citation context as the research object, this paper explores the correspondence between citation context, target document abstract and target self-labeled medical keyword (hereinafter referred to as keyword), and quantitatively analyzes the role of citation context in characterizing the content of target document . Using the five research papers quoted by Circulation magazine as the target documents, we extract all citation contexts of the citing documents and perform word segmentation and keyword matching. The keywords extracted from the results and the target document abstracts and the literature Self-marked keywords for comparison. The results show that the citation context has a high degree of conformity with the target document abstract, and has obvious advantages in characterizing the citation content characteristics.