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[目的 /意义]针对单学科和双学科主题发现方法无法挖掘现有交叉文献中主题演化来源的问题,提出面向跨学科的主题发现方法,为跨学科发展和合作提供依据。[方法 /过程]首先在动物资源与育种领域期刊文献数据中选取已经出现交叉现象的两个基础学科文献及其交叉文献,使用改进的主题相关分析方法,提取共同主题和各自的独立主题;然后利用相关性测度方法量化不同学科独立主题的相关性;最后对共同主题和相似性较高的独立主题进行具体分析。[结果 /结论]在动物资源与育种领域的农学生殖生物学、兽医学以及其交叉文献上进行实验验证,结果表明所提出的方法能够有效发现交叉主题的学科出处。
[Purpose / Significance] In view of the fact that the single-subject and dual-subject theme discovery methods can not mine the source of thematic evolution in the existing cross-references, a multidisciplinary thematic discovery approach is proposed to provide a basis for interdisciplinary development and cooperation. [Methods / Processes] Firstly, two basic disciplinary literatures with cross phenomena and their cross-references were selected from the periodical literature data of animal resources and breeding fields. The improved thematic correlation analysis method was used to extract the common themes and their respective independent themes. Then, The correlation measure is used to quantify the relevance of the independent topics in different disciplines. Finally, the author analyzes the independent themes with the same theme and the similarities. [Results / Conclusions] Experimental validation in agronomic and veterinary sciences and their cross-references in the field of animal resources and breeding shows that the proposed method can effectively identify cross-cutting subject sources.