Research on network public opinion in the new media environment has become an important topic of public opinion management. Based on the theory of information ecology, this paper describes the characteristics of network public opinion in the new media environment, and studies the characteristics and behavior law of network public opinion using the Sina micro-blog "Ebola" topic. The research results show that the number of fans and number of followers are in line with the piecewise power-law distribution. Furthermore, the information content and information environment characteristic curve conforms to the exponential distribution, the information technology curve conforms to the power law distribution, and the network public opinion spreads to a certain extent according to the priority choice, interest drive, interest decay, and the periodic rule. The research in this paper provides a certain guiding func-tion for relevant departments to strengthen network public opinion supervision and guidance in the new media envi-ronment.%新媒体环境下的网络舆情研究成为当前网络舆情监管和舆情引导的重要议题.本文基于"信息人、信息、信息环境和信息技术"四个信息生态因子的相互和谐的信息生态理论,构建新媒体环境下网络舆情特征量,以新浪微博"埃博拉"话题为实证研究对象,对新媒体环境下网络舆情的特征量及行为规律进行了分析.研究结果表明,信息人中的用户粉丝数和关注数均符合分段幂律分布;信息内容和信息环境特征量曲线符合指数分布,同时信息环境特征量具有长尾分布特征;信息技术中的用户工具端使用曲线符合幂律分布;新媒体环境下的网络舆情传播在一定程度上符合优先权选择、兴趣驱动、兴趣衰减及周期性规律.本文的研究对相关部门加强新媒体环境下的网络舆情监管和舆论引导具有一定的指导作用.
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