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Lethality and centrality in protein networks
It is demonstrated that the phenotypic consequence of a single gene deletion in the yeast Saccharomyces cerevisiae is affected to a large extent by the topological position of its protein product in the complex hierarchical web of molecular interactions.
The large-scale organization of metabolic networks
This analysis of metabolic networks of 43 organisms representing all three domains of life shows that, despite significant variation in their individual constituents and pathways, these metabolic networks have the same topological scaling properties and show striking similarities to the inherent organization of complex non-biological systems.
Evolution of the social network of scientific collaborations
Measuring preferential attachment for evolving networks
Measurements on four networks indicate that the rate at which nodes acquire links depends on the node's degree, offering direct quantitative support for the presence of preferential attachment.
Weighted evolving networks.
This paper introduces and investigates the scaling properties of a class of models which assign weights to the links as the network evolves, and indicates that asymptotically the total weight distribution converges to the scaling behavior of the connectivity distribution, but this convergence is hampered by strong logarithmic corrections.
The topology of the transcription regulatory network in the yeast
Networks in life: Scaling properties and eigenvalue spectra
Structure and evolution of online social relationships: Heterogeneity in unrestricted discussions.
- K. Goh, Y. Eom, H. Jeong, B. Kahng, D. Kim
- Computer SciencePhysical review. E, Statistical, nonlinear, and…
- 31 January 2006
The structure and evolution of online social relationships are analyzed by examining the temporal records of a bulletin board system (BBS) in a university by finding a weighted network between the communicating students with an unambiguous group association of individuals.
Emerging behavior in electronic bidding.
- I. Yang, H. Jeong, B. Kahng, A. Barabasi
- EconomicsPhysical review. E, Statistical, nonlinear, and…
- 27 January 2003
It is found that a few agents are responsible for a significant fraction of the total bidding activity on the online market, and these agents exert an unproportional influence on the final price of the auctioned items.
Comparable system-level organization of Archaea and Eukaryotes
- J. Podani, Z. Oltvai, H. Jeong, B. Tombor, A. Barabasi, E. Szathmáry
- BiologyNature Genetics
- 1 September 2001
The analyses suggest that during the symbiotic evolution of eukaryotes, incorporation of bacterial metabolic enzymes into the proto-archaeal proteome was constrained by the host's pre-existing metabolic architecture.