期刊文献+
共找到6,539篇文章
< 1 2 250 >
每页显示 20 50 100
Research on Governance Strategy of Internet Public Opinion Reversal based on Blockchain Technology
1
作者 Fei Wang 《Journal of Electronic Research and Application》 2025年第3期44-51,共8页
In recent years,the network public opinion reversal governance events have occurred frequently.Over time,the repeated truth of the matter will not only weaken the rational judgment of the public to a certain extent,so... In recent years,the network public opinion reversal governance events have occurred frequently.Over time,the repeated truth of the matter will not only weaken the rational judgment of the public to a certain extent,so that its negative emotions accumulate,but also have a serious impact on the credibility of the media and the government,and may even further intensify social contradictions.Therefore,in the face of such a complex online public opinion space,accurately identifying the truth behind the incident and how to carry out the reversal of online public opinion governance is particularly critical.And blockchain technology,with its advantages of decentralization and immutable information,provides new technical support for the network public opinion reversal governance.Based on this,this paper gives an overview and analysis of blockchain technology and network public opinion reversal,and on this basis introduces the network public opinion reversal governance mechanism based on blockchain technology,aiming to further optimize the network public opinion reversal governance process,for reference only. 展开更多
关键词 Blockchain technology network public opinion reversal Governance strategy
在线阅读 下载PDF
Research on the Evolution Structure of Fragment Disordering Public Opinion in College Students’ Network Circle Group
2
作者 Huawei Zhi Yan Qiao 《Social Networking》 2024年第4期45-65,共21页
Clarifying the evolution structure of public opinion induced and spread by fragmentation in college students’ network circle group is the key to understanding college students’ online social psychological demands, g... Clarifying the evolution structure of public opinion induced and spread by fragmentation in college students’ network circle group is the key to understanding college students’ online social psychological demands, grasping the development trend of public opinion, and designing targeted public opinion governance strategies. On the basis of identifying the key variables in the process of public opinion communication, DEMATEL-ISM model is used to explore the attribute positioning, relative importance level and hierarchical association mechanism of ante-variable and result variable, and then the governance strategies for fragment disordering public opinion in network circle groups of college students is designed. According to the study, exogenous stimuli, the uniqueness of discourse system, the number of spectacular texts and micro-narrative mode constituted the deep-rooted causes of fragment disordering public opinion. The unique situational and information attributes of network circle groups often become an important “booster” of disordered public opinion. The topic deviation is often accompanied with the formation of negative emotions. The corresponding public opinion governance strategies are sought from the aspects of shaping the network environment, adjusting the operation mechanism of the network circle group, improving the efficiency of using fragmented information, and optimizing the human resources of colleges. 展开更多
关键词 College Students’ network Circle Group Fragment Disordering public Opinion Governance DEMATEL ISM
在线阅读 下载PDF
The Research on Social Networks Public Opinion Propagation Influence Models and Its Controllability 被引量:10
3
作者 Lejun Zhang Tong Wang +3 位作者 Zilong Jin Nan Su Chunhui Zhao Yongjun He 《China Communications》 SCIE CSCD 2018年第7期98-110,共13页
Public opinion propagation control is one of the hot topics in contemporary social network research. With the rapid dissemination of information over the Internet, the traditional isolation and vaccination strategies ... Public opinion propagation control is one of the hot topics in contemporary social network research. With the rapid dissemination of information over the Internet, the traditional isolation and vaccination strategies can no longer achieve satisfactory results. A positive guidance technology for public opinion diffusion is urgently needed. First, based on the analysis of influence network controllability and public opinion diffusion, a positive guidance technology is proposed and a new model that supports external control is established. Second, in combination with the influence network, a public opinion propagation influence network model is designed and a public opinion control point selection algorithm(POCDNSA) is proposed. Finally, An experiment verified that this algorithm can lead to users receiving the correct guidance quickly and accurately, reducing the impact of false public opinion information; the effect of CELF is no better than that of the POCDNSA algorithm. The main reason is that the former is completely based on the diffusion cascade information contained in the training data, but does not consider the specific situation of the network structure and the diffusion of public opinion information in the closed set. thus, the effectiveness and feasibility of the algorithm is proven. The findings of this article therefore provide useful insights for the implementation of public opinion control. 展开更多
关键词 social network public opinion propagation control influence network
在线阅读 下载PDF
Two-Layer Coupled Network Model for Topic Derivation in Public Opinion Propagation 被引量:8
4
作者 Yuexia Zhang Yixuan Feng 《China Communications》 SCIE CSCD 2020年第3期176-187,共12页
In view of the fact that news can generate derivative topics when it spreads through micro-blogs,a two-layer coupled SEIR public opinion propagation model is proposed in this paper.The model divides the process of pub... In view of the fact that news can generate derivative topics when it spreads through micro-blogs,a two-layer coupled SEIR public opinion propagation model is proposed in this paper.The model divides the process of public opinion propagation into two layers:the original topic layer and the derived topic layer.Messages are transmitted separately by the SEIR model in the two topic layers,which are independent and interactive.The influence of the topic derivation rate on the propagation trend is established by solving for the equilibrium point and propagation threshold.Further,we establish the relationship between the original topic and the derived topic by simulation.This paper uses the Baidu index to demonstrate the correctness of the model.The relationship between the derived topic and the original topic is verified by adjusting the parameters by the control variable method.The results show that the proposed model is consistent with the propagation of actual public opinion. 展开更多
关键词 complex network public OPINION PROPAGATION SEIR model
在线阅读 下载PDF
Simulating the Spreading of Two Competing Public Opinion Information on Complex Network 被引量:9
5
作者 Mengshu Xie Zhen Jia +1 位作者 Yanfei Chen Qixiang Deng 《Applied Mathematics》 2012年第9期1074-1078,共5页
In this paper, we investigate the regularity of spreading of information and public opinions towards two competing products in complex networks. By building its mathematical model and simulating its evolution process,... In this paper, we investigate the regularity of spreading of information and public opinions towards two competing products in complex networks. By building its mathematical model and simulating its evolution process, we have found the statistical regularity for support rates of two different products at a steady stage. The research shows that strength of the public opinion spreading is proportional to the final support rates of a product. 展开更多
关键词 COMPLEX network public OPINION INFORMATION Competing SPREADING
暂未订购
Predicting Stock Closing Price with Stock Network Public Opinion Based on AdaBoost-AAFSA-Elman Model and CEEMDAN Algorithm
6
作者 朱昶胜 康亮河 冯文芳 《Journal of Shanghai Jiaotong university(Science)》 EI 2023年第6期809-821,共13页
To solve low prediction accuracy of Elman in predicting stock closing price,the model of adaptive boosting(AdaBoost)-improved artificial fish swarm algorithm(AAFSA)-Elman based on complete ensemble em-pirical mode dec... To solve low prediction accuracy of Elman in predicting stock closing price,the model of adaptive boosting(AdaBoost)-improved artificial fish swarm algorithm(AAFSA)-Elman based on complete ensemble em-pirical mode decomposition with adaptive noise(CEEMDAN)is proposed.By adding different white noise to the original data,CEEMDAN algorithm is used to decompose attributes serial selected by Boruta algorithm and text mining.To optimize the weight and threshold of Elman,self-adaption step length and view scope are used to improve artificial fish swarm algorithm(AFSA).AdaBoost algorithm is used to compose 5 weak AAFSA-Elman predictors into a strong predictor by continuous iteration.Experiments show that the mean absolute percentage error(MAPE)of AdaBoost-AAFSA-Elman model reduces from 4.9423%to 1.2338%.This study provides an experimental method for the prediction of stock closing price based on network public opinio. 展开更多
关键词 network public opinion CEEMDAN ADABOOST AFSA ELMAN
原文传递
The Study of SINA micro-blog Opinion Leaders Effect on Network Public Opinion Transmission
7
作者 Ge Tao Xue Chuanye 《International English Education Research》 2015年第3期68-72,共5页
Opinion leaders play a critical role in network public opinion transmission, their perspectives can shape public opinion and influence policy formulation and implementation. The paper is based on SINA micro-blog, by s... Opinion leaders play a critical role in network public opinion transmission, their perspectives can shape public opinion and influence policy formulation and implementation. The paper is based on SINA micro-blog, by structural equation model, as Fudan Poisoning Event for example, On the basis of in-depth analysis of opinion leaders effect on network public opinion transmission characteristics, Explore the opinion leaders on the influence of network public opinion transmission mechanism, in order to better play a role of opinion leader's guidance of public opinion. 展开更多
关键词 opinion leaders network public opinion SINA micro-blog transmission structural equation model
在线阅读 下载PDF
Research on Public Opinion Transmission and Evolution Mechanism in Network
8
作者 Zhang Fangyuan 《International English Education Research》 2014年第2期35-38,共4页
As the Internet continues to expand, the influence of network information on real life has gradually deepened. Research on propagation and evolution of Internet public opinion has become a hot topic. The force of inte... As the Internet continues to expand, the influence of network information on real life has gradually deepened. Research on propagation and evolution of Internet public opinion has become a hot topic. The force of intemet public opinion penetrates and influences on every aspect of the society. Compared with traditional public opinion, the network public opinion has features of immediate, multivariate and interactive, the propagation behavior has the new change compared with the traditional public opinion. In the propagation behavior of network public opinion, agenda setting is no longer an arbitrary, the influence of opinion leaders in the agenda setting becomes more and more complex and diversified. The formation time of network public opinion is short, and social influence becomes strong. Guide the public opinion to build a harmonious environment of network public opinion. Overall, our country' s network public opinion environment is a benign situation and steadily promoting the reforms of public policies. Although there is still a few not rational voices full of them, the network public opinion shows a general trend of positive thinking. Based on this philosophy, through the research of network public opinion dissemination and evolution mechanism, can be all-round good guidance and supervision of public opinion, building a harmonious network environment of public opinion. 展开更多
关键词 network public opinion propagation of intemet public opinion evolution of intemet public opinion
在线阅读 下载PDF
Two Network Structure Indicators for Conventional Public Transit
9
作者 Min Fu Hao Wang +2 位作者 Wei Wang Sida Luo De Zhao 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2016年第5期90-96,共7页
The significance of network structure indicators for the planning and management of conventional public transit is widely acknowledged.In order to improve and enrich the conventional public transit assessment system,t... The significance of network structure indicators for the planning and management of conventional public transit is widely acknowledged.In order to improve and enrich the conventional public transit assessment system,two network structure indicators are proposed.Firstly,according to the obvious defects lying in the traditional no-linear coefficient,the realistic no-linear coefficient γRNL,a modified no-linear coefficient indicator,is put forward,which takes into account the effects of barriers in a city.Secondly,to cover the gap of an indicator which can reflect the coverage homogeneity of a transit network,the length dimension LDis proposed on the basis of Fractal Theory.Finally,a case study is applied to verify the validity and practicability of the two indicators in problem diagnosis using regression analysis.The results validate that γRNLcan evaluate the detour of bus lines more reasonably than the previous no-linear coefficient because it reflects the layout of bus lines,and LDcan represent the rate of change of the network density,adding a new member to the scheme of network structure indicators for public transit. 展开更多
关键词 conventional public transit network structure indicator realistic no-linear coefficient length dimension fractal theory
在线阅读 下载PDF
Self-Organized Public-Key Management for Mobile Ad Hoc Networks Based on a Bidirectional Trust Model 被引量:5
10
作者 FU Cai HONG Fan LI Rui-xian HONG Liang CHEN Jing 《Wuhan University Journal of Natural Sciences》 EI CAS 2006年第1期188-192,共5页
In traditional networks , the authentication is performed by certificate authoritys(CA),which can't be built in distributed mobile Ad Hoc Networks however. In this pa per, we propose a fully self-organized public k... In traditional networks , the authentication is performed by certificate authoritys(CA),which can't be built in distributed mobile Ad Hoc Networks however. In this pa per, we propose a fully self-organized public key management based on bidirectional trust model without any centralized authority that allows users to generate their public-private key pairs, to issue certificates, and the trust relation spreads rationally according to the truly human relations. In contrast with the traditional self-organized public-key management, the average certificates paths get more short, the authentication passing rate gets more high and the most important is that the bidirectional trust based model satisfys the trust re quirement of hosts better. 展开更多
关键词 Ad Hoc networks self-organize bidirectional trust public key management.
在线阅读 下载PDF
Emergence of Group Cooperation in Public Goods Game on Regular Small-World Network
11
作者 ZHANG Yingqing FAN Ruguo LUO Ming 《Wuhan University Journal of Natural Sciences》 CAS CSCD 2017年第6期529-534,共6页
The regular small-world network, which contains the properties of small-world network and regular network, has recently received substantial attention and has been applied in researches on 2-person games. However, it ... The regular small-world network, which contains the properties of small-world network and regular network, has recently received substantial attention and has been applied in researches on 2-person games. However, it is a common phenomenon that cooperation always appears as a group behavior. In order to investigate the mechanism of group cooperation, we propose an evolutionary multi-person game model on a regular small-world network based on public goods game theory. Then, to make a comparison of frequency of cooperation among different networks, we carry out simulations on three kinds of networks with the same configuration of average degree: the square lattice, regular small-world network and random regular network. The results of simulation show that the group cooperation will emerge among these three networks when the enhancement factor r exceeds a threshold. Furthermore, time required for full cooperation on regular small-world network is slightly longer than the other networks, which indicates that the compact interactions and random interactions will promote cooperation, while the longer-range links are the obstacles in the emergence of cooperation. In addition, the cooperation would be promoted further by enhancing the random interactions on regular small-world network. 展开更多
关键词 regular small-world network public goods game group cooperation
原文传递
Research on crisis management of enterprise network public opinion
12
作者 WANG Ting 《International English Education Research》 2017年第4期53-55,共3页
With the arrival ofthe era from the media, the internet spread over all sectors ofsocicty, affect people's political, economic and cultural life. The network has become the main place, people express their views so a... With the arrival ofthe era from the media, the internet spread over all sectors ofsocicty, affect people's political, economic and cultural life. The network has become the main place, people express their views so also. And the popularity of media enables consumers to easily express their products, services and other aspects of the topic, spread on the network at breakneck speed, and other users of the attention and support, thus forming a kind of public opinion, influence The development of enterprises, which will undoubtedly bring unprecedented pressure, constant attention, coupled with people's comments, forwarding, dissemination media, making the crisis spread, enterprises should not reasonable, effective, will enable enterprises to establish a sense of trust collapsed, brought a negative impact to the enterprise. 展开更多
关键词 network public opinion: Crisis management: Countermeasures
在线阅读 下载PDF
Innovation of Ideological and Political Education in Colleges and Universities from the Perspective of Network Public Opinion
13
作者 Haixin Jiang 《Journal of Contemporary Educational Research》 2021年第7期26-30,共5页
In today's era of rapid development of network media,network public opinion has brought great changes to people's lives.As a place of frequent network public opinion,colleges and universities create a more com... In today's era of rapid development of network media,network public opinion has brought great changes to people's lives.As a place of frequent network public opinion,colleges and universities create a more complex and changeable network environment.This is both an opportunity and a challenge to the ideological and political education in universities.Therefore,through a brief introduction of the connotation and characteristics of network public opinion in colleges and universities,this article explores the innovation of ideological and political education in the context of network public opinion in terms of educational concepts,contents,and methods to ensure that this education plays a positive role in the new era. 展开更多
关键词 College network public opinion Ideological and political education INNOVATION
在线阅读 下载PDF
Hot Events Detection of Stock Market Based on Time Series Data of Stock and Text Data of Network Public Opinion
14
作者 Beibei Cao 《Journal of Data Analysis and Information Processing》 2019年第4期174-189,共16页
With the highly integration of the Internet world and the real world, Internet information not only provides real-time and effective data for financial investors, but also helps them understand market dynamics, and en... With the highly integration of the Internet world and the real world, Internet information not only provides real-time and effective data for financial investors, but also helps them understand market dynamics, and enables investors to quickly identify relevant financial events that may lead to stock market volatility. However, in the research of event detection in the financial field, many studies are focused on micro-blog, news and other network text information. Few scholars have studied the characteristics of financial time series data. Considering that in the financial field, the occurrence of an event often affects both the online public opinion space and the real transaction space, so this paper proposes a multi-source heterogeneous information detection method based on stock transaction time series data and online public opinion text data to detect hot events in the stock market. This method uses outlier detection algorithm to extract the time of hot events in stock market based on multi-member fusion. And according to the weight calculation formula of the feature item proposed in this paper, this method calculates the keyword weight of network public opinion information to obtain the core content of hot events in the stock market. Finally, accurate detection of stock market hot events is achieved. 展开更多
关键词 Relationship network public OPINION STOCK TRADING Behavior STOCK Market HOT EVENTS
在线阅读 下载PDF
Research on Public Opinion of Network Mass Incident
15
作者 Muqing Zhan Ronghua Lu 《Journal of Zhouyi Research》 2014年第1期21-23,共3页
关键词 群体性事件 网络 社会变革 结构调整 中国
在线阅读 下载PDF
社交网络圈群极化:不同类型意见领袖的异质性分析 被引量:2
16
作者 张媛媛 王鑫磊 +1 位作者 杨永清 吴江 《图书情报知识》 北大核心 2025年第2期145-155,共11页
[目的/意义]从社交网络圈群极化的角度,探索不同类型意见领袖网络圈群的异质性,为舆情治理部门针对群体极化现象采取圈群差异化治理策略提供理论参考及决策支持。[研究设计/方法]以微博平台为例,获取舆情事件数据,采用多元回归模型分析... [目的/意义]从社交网络圈群极化的角度,探索不同类型意见领袖网络圈群的异质性,为舆情治理部门针对群体极化现象采取圈群差异化治理策略提供理论参考及决策支持。[研究设计/方法]以微博平台为例,获取舆情事件数据,采用多元回归模型分析不同圈群意见领袖与圈群舆论极化、群体极化之间的关系。[结论/发现]在圈群舆论极化方面,当意见领袖为个人用户时,圈群用户与意见领袖情感态度的差异程度对圈群舆论极化程度具有显著的负向影响;当意见领袖为官方机构用户时,圈群用户与意见领袖情感态度的差异程度对圈群舆论极化程度具有显著的正向影响。在圈群群体极化方面,圈群中的讨论次数对群体极化程度具有显著的负向影响,意见领袖认证类型和情感强度对这种影响具显著的调节作用,而圈群意见领袖影响力对其不具有显著的调节作用。圈群意见领袖为官方机构用户时较个人用户会增强两者间的影响关系,圈群意见领袖情感增强时会减弱两者间的影响关系。[创新/价值]引入意见领袖类型作为调节变量,探究了各类意见领袖对圈群群体极化程度的影响差异,拓展了群体极化影响机制的相关研究,提供了基于网络圈群研究群体极化的新思路。 展开更多
关键词 社交网络舆情 网络圈群 舆论极化 群体极化 意见领袖
在线阅读 下载PDF
突发事件网络舆情主题演化聚焦特征研究——以“河南暴雨事件”为例 被引量:1
17
作者 李燕凌 伍可欣 《灾害学》 北大核心 2025年第1期207-212,共6页
通过生命周期理论,对突发事件网络舆情情感变化推动主题演化聚焦的特征进行分阶段研究,有利于了解政府和媒体如何进行突发事件网络舆情引导。该文以“河南暴雨事件”为例,运用情感词典识别各阶段情感倾向,运用LDA模型分析各阶段舆情主题... 通过生命周期理论,对突发事件网络舆情情感变化推动主题演化聚焦的特征进行分阶段研究,有利于了解政府和媒体如何进行突发事件网络舆情引导。该文以“河南暴雨事件”为例,运用情感词典识别各阶段情感倾向,运用LDA模型分析各阶段舆情主题,结合生命周期理论划分舆情生命周期,总结突发事件网络舆情情感变化推动主题随生命周期演化聚焦的特征。研究表明,在潜伏期和萌动期,网民情感由负面转向中性,主题聚焦于应急保障;加速期和成熟期,情感由负面转向正面,主题关注应急救援;消退期,情感以中性和正面为主,主题转向应急修复。政府和媒体在各阶段有效引导了舆情。研究为舆情监管部门提供了网民情感变化与主题演化的洞察,为提高舆情引导能力提供了方法指导。 展开更多
关键词 突发事件 网络舆情 主题演化
在线阅读 下载PDF
The Transmission Mechanism and Control Strategy of the Network Public Opinion in Frontier Ethnic Regions
18
作者 高颖 《青岛大学学报(自然科学版)》 CAS 2018年第B09期27-32,共6页
Social networking has become an important channel for netizens to express public Opinions and reflect social conditions and public opinions. At the same time, social networks also provide favorable conditions for the ... Social networking has become an important channel for netizens to express public Opinions and reflect social conditions and public opinions. At the same time, social networks also provide favorable conditions for the widespread dissemination of negative information. The spread of negative information will weaken the credibility of the government and affect government decisions. For this reason, the network public opinion transmission mechanism and control strategy in frontier ethnic areas are studied in depth. Through the analysis of the stage of social media public opinion dissemination, a more reasonable social media public opinion dissemination stage model was concluded, and the social media public opinion dissemination mechanism and the linkage mechanism of the dissemination mechanism were derived, which solved the problem of how social media sentiment was disseminated. According to the analysis of the stage characteristics of social media public opinion dissemination , the six stages of public opinion transmission were divided into different levels , and corresponding strategies were proposed for different levels of the dissemination stage. 展开更多
关键词 social network FRONTIER national public OPINION TRANSMISSION TRANSMISSION mechanism control STRATEGY
在线阅读 下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部