View More View Less
  • 1 Faculty of University Evaluation and Research, National Institution for Academic Degrees and University Evaluation 1-29-1 Gakuen-nishimachi, Kodaira, Tokyo 187-8587, Japan 1-29-1 Gakuen-nishimachi, Kodaira, Tokyo 187-8587, Japan
  • 2 Faculty of University Evaluation and Research, National Institution for Academic Degrees and University Evaluation Tokyo (Japan) Tokyo (Japan)
  • 3 University of Tsukuba Tsukuba (Japan) Tsukuba (Japan)
Restricted access

Summary  

Many studies have analyzed “direct” partnerships in co-authorship networks. On the other hand, the global network structure, including “indirect” links between researchers, has not yet been sufficiently studied. This study analyzes researchers' activities from the viewpoints considering their roles in the global structures of co-authorship networks, and compares the co-authorship networks between the theoretical and application areas in computer science. The modified HITS algorithm is used to calculate the two types of importance of researchers in co-authorship networks, i.e., the importance as the leader and that as the follower.