Referee networks and their spectral properties
- Slanina, F. Institute of Physics, Academy of Sciences, Praha, Czech Republic
- Zhang, Yi-Cheng Theoretical Physics Unit, Department of Physics, Fribourg University, Switzerland
-
2005
Published in:
- Acta Physica Polonica B. - 2005, vol. 36, no. 9, p. 2797-2804
English
The bipartite graph connecting products and reviewers of that product is studied empirically in the case of amazon.com. We find that the network has power-law degree distribution on the side of reviewers, while on the side of products the distribution is better fitted by stretched exponential. The spectrum of normalised adjacency matrix shows power-law tail in the density of states. Establishing the community structures by finding localised eigenstates is not straightforward as the localised and delocalised states are mixed throughout the whole support of the spectrum.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
-
- English
- Classification
- Physics
- Other electronic version
- License
- License undefined
- Identifiers
-
- RERO DOC 5476
- Persistent URL
- https://folia.unifr.ch/unifr/documents/300044
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