Ageing of Edges in Collaboration Networks and its Effect on Author Rankings
In this paper we show that assigning weights to the edges in a collaboration network of authors, according to a decreasing exponential function depending on the time elapsed since the publication of a common paper, may add valuable information to the process of ranking authors based on importance. The main idea is that a recent collaboration represents a stronger tie between the co-authors than an older one and, therefore, reduces the weight of potential citations between the co-authors. We test this approach, on a well-known data set and with an established methodology of using PageRank-based ranking techniques and reference sets of awarded authors and demonstrate that edge ageing may improve the ranking of authors.
The available full text is a preprint of the article.
Keywords: collaborations; citations; PageRank; scholars; rankings
Year: 2015
Full text [627 kB]Authors of this publication:
Dalibor Fiala
Phone: +420 377 63 2429
E-mail: dalfia@kiv.zcu.cz
WWW: http://www.kiv.zcu.cz/~dalfia/
Related Projects:
Social Networks Analysis | |
| Authors: | Karel Ježek, Dalibor Fiala, Michal Nykl |
| Desc.: | Application of the PageRank algorithm and its modifications to the exploration of network structures, particularly citation and co-autorship networks. |