Emergence of Scale-Free Leadership Structure in Social Recommender Systems

• Tao Zhou ,

  * E-mail: zhutou@ustc.edu

  Affiliations Web Sciences Center, University of Electronic Science and Technology of China, Chengdu, People's Republic of China, Department of Physics, University of Fribourg, Fribourg, Switzerland, Department of Modern Physics, University of Science and Technology of China, Hefei, People's Republic of China

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• Matúš Medo,

  Affiliation Department of Physics, University of Fribourg, Fribourg, Switzerland

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• Giulio Cimini,

  Affiliation Department of Physics, University of Fribourg, Fribourg, Switzerland

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• Zi-Ke Zhang,

  Affiliations Web Sciences Center, University of Electronic Science and Technology of China, Chengdu, People's Republic of China, Department of Physics, University of Fribourg, Fribourg, Switzerland

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• Yi-Cheng Zhang

  Affiliations Web Sciences Center, University of Electronic Science and Technology of China, Chengdu, People's Republic of China, Department of Physics, University of Fribourg, Fribourg, Switzerland

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