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论文类型：会议论文

发表时间：2011-01-01

收录刊物：CPCI-S、CPCI-SSH

页面范围：474-484

摘要：In this paper we investigate the effects of co-citation proximity on the quality of co-citation analysis through four experiments of co-citation instances found in full-text scientific publications. First, we compared the distributions of co-citation instances at four levels of proximity in journal articles with the traditionally used article-level co-citation counts. Second, we analyzed how co-citation instances at different proximity levels are distributed across organizational sections in articles. Third, the distribution of co-citation proximity over different co-citation frequency groups is investigated. Fourth, we identified the occurrences of co-citations at different proximity levels with reference to the corresponding traditional co-citation network. The results show that sentence-level co-citations not only preserve the essential structure of the corresponding traditional co-citation network but also form a much smaller subset of the entire co-citation instances typically considered by traditional co-citation analysis. Implications for improving our understanding of underlying factors concerning co-citations and developing more efficient co-citation analysis methods are discussed.