Revealing the relationship between rational fatalism and the online privacy paradox

Previous research has revealed the privacy paradox, which suggests that despite concern about their online privacy, people still reveal a large amount of personal information and don’t take measures to protect personal privacy online. Using data from a national-wide survey, this study takes a psychological approach and uses the rational fatalism theory to explain the privacy paradox on the Internet and the social networking sites (SNSs). The rational fatalism theory argues that risks will become rational if the person believes he or she has no control over the outcome. Our results support the rational fatalism view. We found that people with higher levels of fatalistic belief about technologies and business are less likely to protect their privacy on the Internet in general, and the SNS in particular. Moreover, such relationship is stronger among young Internet users compared with older users.     

基于JSP的多媒体博客系统的研究

随着因特网在中国的兴起和普及,越来越多的人成了网络中的一员,越来越多的网民参与了互动。巨大的网民为网上在线交易提供了可能,并最终促使其在中国的发展。博客让人们的生活方式发生了巨大的转变,博客让人们从手工的笔记转向了多媒体材料的记忆,可以更加丰富人们对所发生事件和心情的描述。多媒体博客系统可以帮助人们完善自己的个人网站,也是当前网络的热点。     

A bumpy ride on the information superhighway: Exploring turbulence online

Managing our personal information is becoming increasingly complex as people share more and more about themselves and others online. Beyond the ordinary challenges people face in disclosing information in face-to-face settings, the Internet presents additional demands users must take into account related to the size and diversity of their audience as well as the longevity and accessibility of their communication. Using survey data from a diverse group of young adults, this paper explores turbulence online, that is, the breakdown of privacy expectations that result in information spreading beyond a user’s desired audience. More than a third of these young adults reported at least one turbulent encounter online ranging in tangible consequences like ending a friendship or trouble at work or school to emotional trouble like feelings of embarrassment or betrayal. Results suggest that successful privacy management online requires a combination of social and technological skills and behaviors. Findings also bring to light new questions on self- versus other-generated turbulence and broader implications for researchers, designers, and users.     

匿名通信系统隐藏服务定位技术研究综述

匿名通信系统诞生之初是为了保护通信实体身份的匿名性和网络中通信内容的隐私性、完整性,但随着匿名通信系统的广泛使用,其匿名性不断增强,在隐藏服务技术的支持下,匿名通信系统被不法分子滥用的情况愈演愈烈,在匿名通信系统隐藏服务技术支持下的暗网平台已然成为了"法外之地".站在网络监管部门的立场上,对匿名通信系统,尤其是匿名通信...     

The influence of user affect in online information disclosure

Personal consumer data is the fuel for information driven programs that may differentiate a firm from its competitors and create strategic advantages. However, a tension exists between the user’s desire to protect personal information and the needs of online businesses for consumer data that drive customer relationship and business intelligence applications. This study explores the roles of positive and negative affect on users’ trust and privacy beliefs that relate to the online disclosure of personal information. A model is tested using the responses of 301 Internet users who visited one of two commercial websites. The results indicate that positive affect has a significant effect on users’ website trust and privacy beliefs that motivate online information disclosure and this effect is more pronounced for users with high Internet security concerns. The idea that positive mood-inducing website features can motivate user behavior has the potential to guide the development of websites for effective information disclosure and data collection.     

Ethos in Chaos? Reaction to Video Files Depicting Socially Harmful Images in the Channel 2 Japanese Internet Forum

Channel 2 (ni-channeru) is the single most widely known free access Japanese Internet bulletin board forum, with over five million people accessing it each month. With its many dysfunctional aspects, Channel 2 is a synonym for the chaos of the Internet in Japan. This study analyzes the dynamics among users of the Channel 2 forum, focusing specifically on the dissemination of alarming images and video files of the October 2004 Japanese hostage murder in Iraq. An examination was conducted of November 2004 Channel 2 threads and entries about the dissemination of images and video files of the hostage murder. Our analysis reveals how content that highly violated moral principles appeared and how a self-regulating mechanism by the user community functioned pro-socially in an uncontrolled, anonymous Internet forum. These findings contrast with previous studies that predicted asocial or antisocial behavior in anonymous online environments.     

一种新的情感词汇语义倾向计算方法

当前,人们越来越倾向于通过互联网(论坛、讨论组、博客)表达自己对事物的观点、意见.如何利用计算机自动、有效地挖掘这些信息是一个具有挑战性的问题,并且在企业智能分析、政府舆情分析等领域具有广阔的应用空间和发展前景.文本倾向分析就是以挖掘、分析文本中所包含的情感信息为目的的一种技术,它是传统的话题发现与跟踪研究的拓展和深化,并为其提供了新的思路和方法.文本倾向分析的基础是词语语义倾向计算.提出一个可扩展的词汇语义倾向计算框架,将词语语义倾向计算问题归结为优化问题.在算法实现上,首先利用多种词语相似度计算方法构建词语无向图;然后利用以“最小切分”为目标的目标函数对该图进行划分,并利用模拟退火算法进行求解.实验证明了该框架的合理性以及求解方法的有效性.     

A time decoupling approach for studying forum dynamics

Online forums are rich sources of information about user communication activity over time. Finding temporal patterns in online forum communication threads can advance our understanding of the dynamics of conversations. The main challenge of temporal analysis in this context is the complexity of forum data. There can be thousands of interacting users, who can be numerically described in many different ways. Moreover, user characteristics can evolve over time. We propose an approach that decouples temporal information about users into sequences of user events and inter-event times. We develop a new feature space to represent the event sequences as paths, and we model the distribution of the inter-event times. We study over 30,000 users across four Internet forums, and discover novel patterns in user communication. We find that users tend to exhibit consistency over time. Furthermore, in our feature space, we observe regions that represent unlikely user behaviors. Finally, we show how to derive a numerical representation for each forum, and we then use this representation to derive a novel clustering of multiple forums.     

A comparison of empathic communication pattern for teenagers and older people in online support communities

This article reports a study that investigated the occurrences of empathy in online support communities for teenagers. Qualitative content analysis with 400 messages from a discussion board about depression was used to identify how empathy was expressed in the specific online communication. Emphasis was also placed on the comparison of this age group to older people, by comparing the results with those from a previous study on empathy in an online support community about depression for older people. Specifically, the analysis focused on the frequencies of the categories of the code scheme, linguistic characteristics of the communication content, the occurring components of empathy, and the roles as well as activities of the members. From our analysis, we concluded that young people exchanged a substantial amount of empathic emotional communication when participating in an online support community, and they communicated on a more personal level compared to older people, who tended to engage in a more formal communication. In addition, teenagers also showed a high level of understanding but lower level of concern compared to older persons when expressing empathy online.     

Can weblogs cause the emergence of social intelligence?: causal model of intention to continue publishing weblog in Japan

This research was conducted to examine the psychological profiles of people who publish their weblogs on the Internet and the characteristics of their community. Weblogs can be defined as online sites, not owned by major corporations, which are frequently updated by one or more people. Weblogs provide an opportunity to develop communication through information sharing with other Internet users. Our particular focus is on authors of “informative” weblogs, who have a powerful desire to provide information and share their knowledge, rather than other weblog forms, such as “diary-like” weblogs, in which the authors have a more powerful need for self-disclosure and the resulting interactions. The results of online author surveys suggested that the system of weblog have many benefits for supporting knowledge community and the weblog authors were oriented to reciprocal information interchange and perceive much psychological benefits from it.     

Emotional disclosure on social networking sites: The role of network structure and psychological needs

We conducted three studies to understand how online emotional disclosure is influenced by social network structure on Facebook. Results showed that emotional disclosure was associated with both the density and size of users’ personal networks. Facebook users with denser networks disclosed more positive and negative emotions, and the relation between network density and emotional disclosure was mediated by stronger need for emotional expression. Facebook users with larger networks on Facebook disclosed more positive emotions, and the relation between network size and emotional disclosure was mediated by a stronger need for impression management. Our study extends past research by revealing the psychological mechanisms through which personal social network structure influences emotional disclosure. It suggests that social network size and density are associated with different psychological needs, which in turn lead to different patterns of emotional disclosure.     

Misery rarely gets company: The influence of emotional bandwidth on supportive communication on Facebook

This study introduces the concept of emotional bandwidth to describe a communicator’s ability to use technological features to disclose personal affect online. Strategic use of emotional bandwidth was expected to correspond with interpersonal rewards, specifically the willingness of others to provide social support. Participants (N = 84) viewed hypothetical Facebook profiles that contained manipulated levels of emotional bandwidth and were asked how much support they would provide to the person in the profile. Participants who viewed profiles portraying high emotional bandwidth were less willing to provide social support; however, this finding was qualified by personal qualities. Females, people who perceived a sense of community, and people who had a preference for online social interaction indicated a greater willingness to provide support in the high emotional bandwidth condition. Implications for designing affective affordances in technologies and their psychological effects are discussed.     

匿名网络Tor与I2P的比较研究

Tor（the onion router）是部署最多的匿名通信系统,提供在线匿名和隐私保护,而隐形互联网I2P （invisible Internet project）允许应用程序通过使用大蒜路由,以匿名和安全方式相互发送消息。匿名网络Tor和I2P目前已受到学术界、工业界的高度重视,也受到用户的欢迎。网络Tor和I2P之间的设计理念区别关键在于：I2P试图将现有的互联网服务转移到I2P网络,并在框架内提供服务实现,而Tor则允许匿名访问分别实施和操作外部互联网服务。对匿名网络Tor、I2P分别从使用术语、项目开发、匿名服务、关键技术、威胁类型等多个方面进行比较,揭示两种匿名网络的内在联系与本质区别。     

Loneliness and social uses of the Internet

Loneliness has been associated with increased Internet use. Lonely individuals may be drawn online because of the increased potential for companionship, the changed social interaction patterns online, and as a way to modulate negative moods associated with loneliness. Online, social presence and intimacy levels can be controlled; users can remain invisible as they observe others’ interactions, and can control the amount and timing of their interactions. Anonymity and lack of face-to-face communication online may decrease self-consciousness and social anxiety, which could facilitate pro-social behavior and enhance online friendship formation. Support for this model was found in a survey of 277 undergraduate Internet users that was used to assess differences between lonely and not-lonely individuals in patterns of Internet use. Loneliness was assessed on the UCLA Loneliness Scale; students in the highest 20% (Lonely) were compared with all other students (Non-lonely). Lonely individuals used the Internet and e-mail more and were more likely to use the Internet for emotional support than others. Social behavior of lonely individuals consistently was enhanced online, and lonely individuals were more likely to report making online friends and heightened satisfaction with their online friends. The lonely were more likely to use the Internet to modulate negative moods, and to report that their Internet use was causing disturbances in their daily functioning.     

Control your Facebook: An analysis of online privacy literacy

For an effective and responsible communication on social network sites (SNSs) users must decide between withholding and disclosing personal information. For this so-called privacy regulation, users need to have the respective skills—in other words, they need to have online privacy literacy. In this study, we discuss factors that potentially contribute to and result from online privacy literacy. In an online questionnaire with 630 Facebook users, we found that people who spend more time on Facebook and who have changed their privacy settings more frequently reported to have more online privacy literacy. People with more online privacy literacy, in turn, felt more secure on Facebook and implemented more social privacy settings. A mediation analysis showed that time spend on Facebook and experience with privacy regulation did not per se increase safety and privacy behavior directly, stressing the importance of online privacy literacy as a mediator to a safe and privacy-enhancing online behavior. We conclude that Internet experience leads to more online privacy literacy, which fosters a more cautious privacy behavior on SNSs.     

A thematic analysis of patient communication in Parkinson’s disease online support group discussion forums

Online support groups have become a popular source of information, advice and support for individuals living with a range of health conditions. However, research has not commonly focused on patients living with Parkinson’s disease and their use of online support groups. Thus, the aim of this study was to gain an insight into the positive and negative aspects of online communication through an analysis of messages exchanged within Parkinson’s disease discussion forums. Data was collected from four forums and analysed using data-driven thematic analysis. The results revealed that participation in the forums allowed patients to share experiences and knowledge, form friendships, as well as helping them cope with the challenges of living with Parkinson’s disease. Conversely, a lack of replies, the experience of Parkinson’s disease symptoms, a lack of personal information, fragility of online relationships, misunderstandings and disagreements, all appeared to compromise the online experience. Practical implications and future research recommendations are proposed.     

The mediating effect of website quality on Internet searching behavior

The study investigates the mediating effect of website quality on Internet searching behavior. The research model incorporates three dimensions, namely (1) Internet attitudes of the Internet users, (2) website quality, including the system quality, service quality and information quality, and (3) Internet searching behavior demonstrated by the general population of Internet users. A survey instrument was used to gather data to exam the relationships in the proposed model. The collected online surveys (n = 856) are used to test the relationships among the three dimensions expressed in the proposed structural equation model. The results show that website quality has a mediating effect on Internet searching behavior. It is also discovered that there is significant correlation between Internet attitudes and website quality. This study contributes empirical data to the predominantly theoretical literature on Internet searching behavior in general and Internet attitudes and website quality in particular. It is, to a certain extent, common sense that website quality has a positive impact on Internet searching behavior. This paper takes an important step forward by detailing how website quality affects the Internet searching behavior via enhancing the effect of users’ Internet attitudes.     

Development of an Adaptive EC Website With Online Identified Cognitive Styles of Anonymous Customers

This study developed an adaptive electronic commerce (EC) website based on users' cognitive styles without asking users to complete any evaluation forms. In this system, a multilayer feed forward neural network (MLFF) was designed to identify the cognitive styles of anonymous users by observing their browsing behavior. Then the system presented the adaptive interfaces, designed by investigating the relationships between users' cognitive styles and browsing behavior, to users based on the identified cognitive styles. Experiments were conducted to evaluate the effectiveness of the system. The experimental results verified the potential benefits of MLFF in identifying anonymous users' cognitive styles during browsing of EC applications and provided evidence that an adaptive EC website that presents product data consistent with the users' cognitive styles can be beneficial to one-to-one Internet marketing not only for users whose cognitive styles are known before browsing but also for anonymous users whose cognitive styles are identified during browsing.     

基于技术接受模型的老年人门户设计与实现

针对现有互联网应用更多侧重于青少年而面向老年人特别是中国老年人的研究相对较少、已有老年人互联网应用实践均将老年人作为一个孤立群体看待的问题, 根据中国老年人的特点提出了老年人门户概念, 基于技术接受模型设计了老年人门户, 并进行了门户研发实践。老年人门户不仅为老年人提供信息、产品、交流、娱乐等互联网服务, 还提供老人定位防丢失等多种应用服务。在老年人门户中, 老年人的角色不仅是用品和服务的接受者, 同时是可以发挥主观能动性的服务提供者。实践结果证明, 老年人门户解决了现有老年人网站存在的孤岛问题, 架起了老年人与家庭、社区、社会相联系的桥梁, 可有效提高老年人的幸福指数。未来, 基于老年人门户的老年人数据挖掘和智能分析结果对于老年学研究、政府决策、非政府组织和企业发展均具有重要的意义。     

车联网隐私保护技术研究

随着汽车智能化、网联化程度的不断加深,车辆、用户及第三方机构之间的数据共享日益成为刚需,由车辆、用户、路边单元等通信实体之间构建的网络车联网应运而生,而车联网的高移动性和网络拓扑多变性使其更容易遭受攻击,进而导致严重的车联网用户隐私泄露问题。如何平衡数据共享和隐私保护之间的关系成为车联网产业发展所面临的一个关键挑战。近年来,学术界针对车联网隐私保护问题进行了深入的研究,并提出了一系列解决方案,然而,目前缺少对这些方案从隐私属性方面进行分析。为此,本文首先从车联网的系统架构、通信场景及标准进行阐述。然后对车联网隐私保护的需求、攻击模型及隐私度量方法进行分析与总结。在此基础上从车联网身份隐私、匿名认证位置隐私和车联网位置服务隐私三个方面出发,介绍了匿名认证、假名变更、同态加密、不经意传输等技术对保护车联网用户隐私起到的重要作用,并讨论了方案的基本原理及代表性实现方法,将方案的隐私性从不可链接性、假名性、匿名性、不可检测性、不可观察性几个方面进行了分析与总结。最后探讨了车联网隐私保护技术当前面临的挑战及进一步研究方向,并提出了去中心化的车辆身份隐私技术以保护车辆身份隐私、自适应假名变更技术以支持匿名认证、满足个性化隐私需求的位置服务隐私保护技术,以期望进一步推动车联网隐私保护技术研究的发展与应用。