Modeling the Citation Network by Network Cosmology |
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| Authors: | Zheng Xie Zhenzheng Ouyang Pengyuan Zhang Dongyun Yi Dexing Kong |
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| Institution: | 1. College of Science, National University of Defense Technology, Changsha, Hunan, China.; 2. State Key Laboratory of High Performance Computing, National University of Defense Technology, Changsha, Hunan, China.; 3. Department of Mathematics, Zhejiang University, Hangzhou, Zhejiang, China.; Universitat Rovira i Virgili, SPAIN, |
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| Abstract: | Citation between papers can be treated as a causal relationship. In addition, some citation networks have a number of similarities to the causal networks in network cosmology, e.g., the similar in-and out-degree distributions. Hence, it is possible to model the citation network using network cosmology. The casual network models built on homogenous spacetimes have some restrictions when describing some phenomena in citation networks, e.g., the hot papers receive more citations than other simultaneously published papers. We propose an inhomogenous causal network model to model the citation network, the connection mechanism of which well expresses some features of citation. The node growth trend and degree distributions of the generated networks also fit those of some citation networks well. |
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