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Statistical properties of online avatar numbers in a massive multiplayer online role-playing game |
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| Authors: | Zhi-Qiang Jiang Fei Ren Gao-Feng Gu Qun-Zhao Tan |
| Institution: | a School of Business, East China University of Science and Technology, Shanghai 200237, China b School of Science, East China University of Science and Technology, Shanghai 200237, China c Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China d Shanda Interactive Entertainment Ltd, Shanghai 201203, China e Research Center on Fictitious Economics & Data Science, Chinese Academy of Sciences, Beijing 100080, China |
| Abstract: | Massive multiplayer online role-playing games (MMORPGs) have been very popular in the past few years. The profit of an MMORPG company is proportional to how many users registered, and the instant number of online avatars is a key factor to assess how popular an MMORPG is. We use the online-offline logs on an MMORPG server to reconstruct the instant number of online avatars per second and investigate its statistical properties. We find that the online avatar number exhibits one-day periodic behavior and clear intraday pattern, the fluctuation distribution of the online avatar numbers has a leptokurtic non-Gaussian shape with power-law tails, and the increments of online avatar numbers after removing the intraday pattern are uncorrelated and the associated absolute values have long-term correlation. In addition, both time series exhibit multifractal nature. |
| Keywords: | 87 23 Ge 89 75 Da 05 40 -a |
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