CLC与LCC类目同现映射方法研究——以图情领域为例

Research on the Co-occurrence Mapping between CLC and LCC Categories——Taking Library and Information Science as an Example

建立类表间的映射是实现词表互操作的主要途径,文章采用基于书目记录的同现映射的方法,为实现CLC与LCC类目映射提供指导。先对CLC与LCC下图情领域的类目进行比较,再根据2506条书目记录,采用同现映射的方法,计算类目间的相似度,从而实现类目映射。研究发现:尽管CLC与LCC的类目设置有很大差异,但实现类目间的映射仍有可行性;采用基于书目记录的同现映射方法,计算得出的类目间的相似度区分度明显,映射效果较好。

Establishing a mapping between categories is the main way to realize the interoperability of classification.In China,more attention has been paid to the study on both direct mapping and indirect mapping.In this paper,a method of co-occurrence mapping based on bibliographic records is used to provide guidance for the realization of mapping between CLC and LCC categories.First,the categories in the field of library and information science under the CLC and LCC are compared and analyzed.Then,the co-occurrence mapping method is used to work out the similarities between categories,and to realize the mapping between categories.Although CLC and LCC have great differences in their category settings,it is still feasible to implement the mapping between categories.The similarities between CLC and LCC categories which are worked out by the method of co-occurrence mapping based on bibliographic records is distinguished,and the mapping effect is quite satisfactory.