title: Generalizations of the clustering coefficient to weighted complex networks.
abstract: The recent high level of interest in weighted complex networks gives rise to a need to develop new measures and to generalize existing ones to take the weights of links into account. Here we focus on various generalizations of the clustering coefficient, which is one of the central characteristics in the complex network theory. We present a comparative study of the several suggestions introduced in the literature, and point out their advantages and limitations. The concepts are illustrated by simple examples as well as by empirical data of the world trade and weighted coauthorship networks.
authors.affiliation: Laboratory of Computational Engineering, Helsinki University of Technology, P.O. Box 9203, FIN-02015 HUT, Finland. jsaramak@lce.hut.fi
authors.forename: Jari
authors.initials: J
authors.lastname: Saramäki
authors.forename: Mikko
authors.initials: M
authors.lastname: Kivelä
authors.forename: Jukka-Pekka
authors.initials: JP
authors.lastname: Onnela
authors.forename: Kimmo
authors.initials: K
authors.lastname: Kaski
authors.forename: János
authors.initials: J
authors.lastname: Kertész