Identify the diversity of mesoscopic structures in networks: A mixed random walk approachYifang Ma, Xin Jiang, Meng Li, Xin Shen, Quantong Guo, Yanjun Lei and Zhiming ZhengEPL, 104 1 (2013) 18006DOI: https://doi.org/10.1209/0295-5075/104/18006