网络问答社区信息生产者分布规律研究——基于MetaFilter music版块的实证分析  

Research on the Information Producer Distribution of a Network Q&A Community:An Empirical Analysis Based on the Music Portion of MetaFilter Data

作　　者：杨金庆 叶光辉[2] Yang Jinqing;Ye Guanghui(School of Information Management,Wuhan University,Wuhan 430072;School of Information Management,Central China Normal University,Wuhan 430079)

机构地区：[1]武汉大学信息管理学院,武汉430072 [2]华中师范大学信息管理学院,武汉430079

出　　处：《情报学报》2020年第10期1060-1068,共9页Journal of the China Society for Scientific and Technical Information

基　　金：国家自然科学基金项目“基于标签语义挖掘的城市画像计算与应用模型研究”(71804055)。

摘　　要：为探究UGC(user-generated content)模式下的信息生产者分布规律,本文以网络问答社区为研究对象,首先获取MetaFilter网络问答社区music版块的comment(回答)、post(提问)、user(用户)、timestamp(时间戳)数据项作为实验数据。然后,从信息生产力与社交关联强度两个层面验证了洛特卡定律对网络问答社区评论频次-用户数量分布的适用性,探索了用户社交网络中用户分布规律的新特征。最后,结合信息生产力和社交关系两个角度分析信息生产者幂律分布现象,引申探索了用户社交关联强度与信息生产力间的关系。实验结果表明,洛特卡定律对UGC模式的网络问答社区仍具有适用性;网络问答社区的用户社交网络属于无标度网络,用户度分布呈现“富者愈富”的现象;社交关联强的用户未必信息生产量高,但用户社交关联强度与信息生产量之间呈正相关,可为网络问答社区的管理策略的制定提供参考。To explore information producer distribution under the UGC(user-generated content)mode,in this study,the network Q&A community was taken as the research object.First,the comment,post,user,and timestamp data items of the music portion of the MetaFilter Q&A community was obtained as experimental data.Next,we verified the applicability of Lotka’s law to the distribution of comment frequency and number of users in the network Q&A community from the aspects of information productivity and social correlation strength,and explored the new characteristics of the user distribution law of the user's social network.Finally,based on the power-law correlation of the user distribution phenomenon from the perspective of information productivity and social relevance strength,we explored the relationship between the social relevance strength of the user and information productivity.The experimental results show that Lotka's law is still applicable to the UGC mode;the social network of users in the network Q&A community is a scale-free network.Users with strong social relevance may not produce large amounts of information,but there is a positive correlation between social relevance strength and information production,which can provide a reference for the formulation of management strategies for the network Q&A community.

关 键 词：洛特卡定律 幂律分布 信息生产者 问答社区 

分 类 号：G252[文化科学—图书馆学] G353.1[自动化与计算机技术—计算机应用技术] TP391.1[自动化与计算机技术—计算机科学与技术]