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原文連結
論文資訊
- 類型：已發表論文
- 日期：2001
摘要
Using computer databases of scientific papers in physics, biomedical research, and computer science, we have constructed 網絡s of collaboration between scientists in each of these disciplines. In these 網絡s two scientists are considered connected if they have coauthored one or more papers together. Here we study a variety of nonlocal statistics for these 網絡s, such as typical distances between scientists through the 網絡, and measures of centrality such as closeness and betweenness. We further argue that simple 網絡s such as these cannot capture variation in the strength of collaborative ties and propose a measure of collaboration strength based on the number of papers coauthored by pairs of scientists, and the number of other scientists with whom they coauthored those papers.
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