文献类型：期刊文献

英文题名：Statistical properties of online avatar numbers in a massive multiplayer online role-playing game

作者：Jiang, Zhi-Qiang[1,2,3];Ren, Fei[1,3];Gu, Gao-Feng[1,2,3];Tan, Qun-Zhao[4];Zhou, Wei-Xing[1,2,3,5]

机构：[1]E China Univ Sci & Technol, Sch Business, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Sch Sci, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Res Ctr Econophys, Shanghai 200237, Peoples R China;[4]Shanda Interact Entertainment Ltd, Shanghai 201203, Peoples R China;[5]Chinese Acad Sci, Res Ctr Fictitious Econ & Data Sci, Beijing 100080, Peoples R China

年份：2010

卷号：389

期号：4

起止页码：807

外文期刊名：PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS

收录：;EI(收录号：20095012544783);WOS:【SCI-EXPANDED(收录号:WOS:000273694300018)】；

基金：This work was partly Supported by the Program for New Century Excellent Talents in University (Grant No. NCET-07-0288).

语种：英文

外文关键词：Sociophysics; MMORPG; Intraday pattern; Distribution; Correlations

摘要：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. (C) 2009 Elsevier B.V. All rights reserved.