面向精英群体沉默的网络观点演化偏差仿真研究

目的:研究仿真精英群体在社交网络中发言频率降低而导致网络观点演化出现偏差的现象,为政府等机构有效引导舆论、治理网络乱象等提供参考。方法:将网络用户细分为普通群体、精英群体和超级用户3类,基于改进的Hegselmann-Krause(HK)模型构建精英群体沉默状态下的网络观点演化模型,并基于MATLAB进行仿真。结果:网络噪声会对网络观点演化造成干扰,且噪声越大,整体网络观点越难达到统一;超级用户基本不受网络噪声干扰,仍能够对网络观点演化趋势产生统领性的影响;精英群体会受到网络噪声干扰,且由噪声导致的沉默行为会造成整体网络观点的偏差性演化,尤其当与超级用户的观点值相左时。结论:重视因精英群体沉默而导致的网络观点演化偏差现象,建议通过健全网络“实名制”配套机制、加快推进网络立法进程等方式,保证精英群体理性发声的权利和底气,从而引导网络舆情健康、有序发展。

Vice President Wang Jie Met with BEST Belegation

On Oct. 21,2003, Vice President Wang Jie met with the delegation from the Department of Education, Science and Training (DEST) of Australia headed by Minister Brendan Nelson. During the meeting, both sides exchanged views with regard to the on-going collaboration supported by both agencies and expressed common interests on further promoting the substantial cooperation between scientists of Australia and China.