Perceptions of News Credibility about the War in Iraq: Why War Opponents Perceived the Internet as the Most Credible Medium

This study investigated cross‐media credibility perception with respect to news coverage about the Iraq War. In an environment of political partisanship, perceptions of media credibility were likely affected by the audience’s political position on the war. Based on hostile media effect theory, a set of hypotheses was proposed to investigate whether the minority opinion group, war opponents, evaluated the Internet as a more credible medium than did neutrals or supporters. An online survey was conducted to which 481 people responded (71% war supporters, 19% opponents, 10% neutrals). Results showed that opponents of the war perceived the Internet as less aligned with a pro‐government position and as more credible than did neutrals or supporters. The opponent group also showed a strong negative correlation between perceived pro‐government alignment and perceptions of Internet credibility. For the minority partisan group, the diversity of information and views on the war was the main reason for the perception of high credibility of the Internet as a news channel.     

Online News Credibility: An Examination of the Perceptions of Newspaper Journalists

This study examines print and online daily newspaper journalists' perceptions of the credibility of Internet news information, as well as the influence of several factors—most notably, professional role conceptions—on those perceptions. Credibility was measured as a multidimensional construct. The results of a survey of U.S. journalists (N = 655) show that Internet news information was viewed as moderately credible overall and that online newspaper journalists rated Internet news information as significantly more credible than did print newspaper journalists. Hierarchical regression analyses reveal that Internet reliance was a strong positive predictor of credibility. Two professional role conceptions also emerged as significant predictors. The populist mobilizer role conception was a significant positive predictor of online news credibility, while the adversarial role conception was a significant negative predictor. Demographic characteristics of print and online daily newspaper journalists did not influence their perceptions of online news credibility.     

Problematic Internet use: Perceptions of addiction counsellors

Despite a growing number of publications on problematic Internet use (PIU), there is no consensus on the nature of the phenomenon, its constituent criteria, and its clinical threshold. This qualitative study examines the perceptions of addiction counsellors who have managed individuals with PIU in Québec (Canada). Four focus groups were conducted with 21 addictions counsellors working in public addiction rehabilitation centres. Discussion groups were digitally recorded, transcribed using a word processor, and analyzed using N’vivo 8.0 software. The results present the perceptions of counsellors regarding case management issues, including problematic applications, clinical picture, number of hours of Internet use for assessment, and for treatment.     

Considering Context: The Role of Mental Workload and Operator Control in Users' Perceptions of Usability

In developing an application, the importance of usability and user experience has become increasingly emphasized over the past few decades. An important factor in understanding these is the context in which the application is being used. To better understand the direct effect of context, two task characteristics (i.e., mental workload and operator control) were manipulated and their effects on perceived usability were examined through an experiment using simulated home security systems. The experimental results showed that both mental workload and operator control had significant effects on perceived usability. Also, the perceptions of mental workload and operator control were strongly correlated with perceived usability. The interaction between the mental workload and the operator control factors was not significant. Possible reasons for the results and practical implications for the findings are discussed.     

对修正的K近邻域关联算法的仿真与可信性评估

航迹关联是多传感器信息融合的重要处理环节,目前针对航迹关联的算法有很多。该文主要阐述了修正的K近邻域算法(MK-NN算法)的关联准则、关联处理过程等方面的问题,并通过仿真分析对其关联可靠性、可信性进行了评估。     

Credibility of Social Network Sites for Political Information Among Politically Interested Internet Users

Scholars have confirmed that political candidates are increasingly turning to social network sites (SNS) to persuade voters to vote for them, and that these sites have become prominent sources of political information. But a fundamental question arises about the sustainability of social networks as a campaign tool: How much do users trust the information they find there? This study employed an online survey to examine the degree to which politically interested online users view SNS as credible. SNS were ranked the least credible among the nine traditional and online sources examined. Reliance on social networks proved the strongest predictor of SNS credibility.     

From the user's perspective: Perceptions of risk relative to benefit associated with using the Internet

We departed from existing studies on Internet use by exploring users' perception of their own use of the Internet. Using a mixed-method explanatory sequential design approach, we first asked users to generate lists of actions they take on the Internet and then asked them why they engage in these 35 activities. Using the information gleaned from the interviews, we developed surveys that asked 261 users (ages 19–68) to rate the perceived risk (defined as situations that contain uncertainty regarding outcomes and/or possess the potential for negative consequences) associated with each action, benefits received from each action, frequency with which they engage in the action, and amount of information they are willing to share to engage in the action. We also assessed a number of individual difference characteristics. Our study results (1) provide an Internet Action list usable in future studies; (2) provide an initial understanding that users (to a degree) engage in Internet actions for the benefits they perceive they gain; (3) show that users share little personal information, if any, to get those benefits; and (4) users have little ability to accurately evaluate the true risk (i.e., due to Internet threats) associated with those actions.     

The Influence of the Avatar on Online Perceptions of Anthropomorphism, Androgyny, Credibility, Homophily, and Attraction

It has become increasingly common for Web sites and computer media to provide computer generated visual images, called avatars, to represent users and bots during online interactions. In this study, participants (N = 255) evaluated a series of avatars in a static context in terms of their androgyny, anthropomorphism, credibility, homophily, attraction, and the likelihood they would choose them during an interaction. The responses to the images were consistent with what would be predicted by uncertainty reduction theory. The results show that the masculinity or femininity (lack of androgyny) of an avatar, as well as anthropomorphism, significantly influence perceptions of avatars. Further, more anthropomorphic avatars were perceived to be more attractive and credible, and people were more likely to choose to be represented by them. Participants reported masculine avatars as less attractive than feminine avatars, and most people reported a preference for human avatars that matched their gender. Practical and theoretical implications of these results for users, designers, and researchers of avatars are discussed.     

Psychological and Social Influences on Blog Writing: An Online Survey of Blog Authors in Japan

We conducted a questionnaire survey of personal blog authors (N = 1,434) and examined two hypothesized models using structural equation modeling to clarify the psychological and social process associated with why authors continue to write their blogs. Two final models with good fit were obtained. It was confirmed that being satisfied with benefits to self, relationships with others, and skill in handling information had significant positive effects on the intention to continue blog writing. The psychological traits of private self-consciousness, reassurance-seeking, and information need were hypothesized to be effective in establishing consciousness of the benefits; these also had significant positive effects. In contrast, only positive feedback had a significant influence on satisfaction related to information handling skill, whereas both negative and positive feedback had significant influences on satisfaction related to information handling skill. This suggests that communication with readers who gave positive feedback strongly encouraged blog authors to continue writing. Similarities and differences between the two models and recommendations for further theoretical development are discussed.     

Maximal Throughput of Wireless Access to the Internet: Its Estimation

A star-like regional wireless network under the IEEE 802.11 protocol is studied: its end stations are hidden from each other and linked only with the base station—the point of access to outer networks. It provides access to the Internet to users of cable LANs connected to its end stations. Transfer of large files through TCP/IP connections forms the main bulk of the wireless traffic. Methods for estimating the maximal network throughput for transmission of TCP-level information are designed.     

物联网技术及其应用

物联网技术的快速发展和广阔应用领域已经引起各国政府的高度重视。首先介绍了物联网的发展历程,然后分析了物联网的体系架构和核心技术,最后给出了一个基于物联网技术的仓库智能监控系统框架。     

The Blog is Serving Its Purpose: Self‐Presentation Strategies on 38pitches.com.

This research explored Boston Red Sox pitcher Curt Schilling’s self‐presentation strategies that he displayed on his blog ‐ 38pitches.com , in response to sports broadcasters’ and journalists’ portrayal of him during 2 events that made national sports headlines. A thematic analysis was conducted using constant comparative methodology of Schilling’s blog entries that he authored in response to these events. Three self‐presentation strategies emerged from data analysis: (a) critic, (b) committed individual, and (c) accountable person. Using Hermans, Kempen, and Van Loon’s (1992) dialogical self theory, the study revealed that Schilling fluidly moved between multiple positions when self‐presenting to combat media framing. Additionally, the findings suggests that blogs and other information and communication technologies (ICT) are valuable tools that professional athletes and other celebrities can employ to counter perceived negative media framing of their personae.     

物联网技术发展及应用研究进展

从物联网的发展脉络出发,简述了物联网发展概况。介绍了无线射频设别技术、传感技术、智能技术以及纳米技术等物联网关键性应用技术的研究概况。对物联网在各行业各领域的实际应用做了较大篇幅的阐述,并提出了物联网发展需要重点关注和解决的一些问题。     

基于层次结构的多策略中文微博情感分析和特征抽取

随着Web2.0时代的兴起,与微博相关的研究得到了学术界和工业界的广泛关注。该文使用新浪API获取数据,针对中文微博消息展开了情感分析方面的研究。我们对于三种情感分析的方法进行了深入研究,包括表情符号的规则方法、情感词典的规则方法、基于SVM的层次结构的多策略方法,实验表明基于SVM的层次结构多策略方法效果最好。其次,针对层次结构的多策略方法的特征选择进行了详细分析,包括主题无关、主题相关的特征。实验表明使用主题无关的特征时获得的准确率为66.467%。引入主题相关的特征后,准确率提升至67.283%。     

Consumer attitudes towards Internet gambling: Perceptions of responsible gambling policies,consumer protection,and regulation of online gambling sites

There is an insufficient understanding of consumer attitudes towards Internet gambling, which contributes to difficulties in developing policies to encourage the use of regulated online gambling sites. This research aimed to generate knowledge about consumer attitudes towards online gambling, specifically concerning the issues of player protection, regulation, and responsible gambling. An online survey was completed by 10,838 online casino and poker players from 96 countries. Responsible gambling features were generally viewed positively, particularly by casino game players, those who chased losses, and younger adults. Over one-third of participants reported having experienced a dispute with an online gambling operator. Respondents reported high levels of mistrust and concerns regarding online gambling and confusion regarding the appropriate regulation of Internet gambling. Consumer attitudes play a significant role in driving behavior and must be considered if regulators and operators are to effectively encourage online gamblers to use regulated gambling sites that include consumer protection and harm minimization measures. The results suggest that responsible gambling features, such as the ability to set spending limits, should be implemented on Internet gambling sites to increase consumer trust and favorable attitudes towards online gambling operators, and reduce disputes associated with excessive gambling.     

物联网关键技术及其应用

物联网作为继计算机和互联网技术之后的信息产业的第三次发展浪潮,其带来的各种业务和应用,引起了业 界广泛关注。本文就物联网的特点切入,深入分析了其关键技术和行业应用,并展望了该技术的发展趋势。     

面向物联网的系统及其中间件设计

鉴于物联网(IOT)的应用在医疗行业日益广泛,提出一种适合IOT网络的系统设计方法TOA和对应中间件TOC。TOA将“人”、“物”及所有相关的智能系统都抽象成一个地位完全平等的IOT互联对象,统一了IOT网络环境中联网对象之间的交互模式。在TOC中间件系统设计实现中,采用XMPP协议进行消息交换,利用基于Pipe & Filter的Agent架构模式支持多样异构的智能设备,方便Agent的升级和扩充。通过在某医院医疗垃圾管理系统的成功应用,验证了TOA的设计思想和TOC中间件系统,取得了较好效果。