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Social media enhanced learning systems bring new challenges to evaluate learning environments. Many features are common with any websites and can be evaluated with common criteria. But with social media users can also contribute content, change opinions and create communities for different needs, which bring new dimensions to a quality evaluation. This research focused on finding out which are the...
Social networks have recently been identified as the most popular form of communication online. Research across a set of academic disciplines examining the nature and implications of this popular medium has begun to emerge. The importance of the network structure as well as the behaviors and motivations of member individuals and organizations are gradually becoming better understood. However, there...
In this research, we developed and tested a preliminary theoretical model that explicates jobseekers' behavioral intentions to apply for jobs using social networking sites (SNSs). The factors hypothesized as having an influence on jobseekers' intentions to apply for jobs using SNSs include privacy concerns; trusting beliefs or perceived justice in the candidate selection process; risk beliefs; performance...
With rapid spread of acceptance and usage of Social Network Service (SNS, e.g., Facebook, Renren, Myspace), concerns about online information privacy have arisen. This paper explores the instruments of users' privacy concerns in the context of SNS. First, based on the relevant literature review, comparisons among four scales are discussed and necessities of new items are proposed. Then a pilot test...
Online social search brings forth a new way to harness the Internet for answers. However, the personal and often sensitive information is unwittingly exposed to others when a person looks for an expert via the underlying social network. In this paper, we propose a model in which a node's behavior of looking for an expert is adjusted by his awareness of the potential expertise of his contacts. We derive...
Social networking applications leverage valuable information from social graphs and integrate communication capabilities to offer new services. However, currently, these applications are limited to communication capabilities such as click-to-call or click-to-conference. Once the communication session is established the social context and the communication context are not integrated in these services...
User awareness has become a popular feature in many social web applications. In classic text-based web-systems, user awareness features show how many users are online in a web application or how many users are accessing the same web page. When time based media like web lectures are concerned this approach comes to its limits since time-based media are inherently different from classic text-based media...
In the future, pervasive computing technologies will leverage new ubiquitous and intelligent user-oriented services. In this sense, by combining social network analysis, reality mining techniques and context-aware systems, our work provides an architecture and ground steps for understanding and predicting human behavior and preferences within one of the most promising business models of the future:...
Nowadays, online social network data are increasingly made publicly available to third parties. Several anonymization techniques have been studied and adopted to preserve privacy in the publishing of data. However, recent works have shown that de-anonymization of the released data is not only possible but also practical. In this paper, we present a brief yet systematic review of the existing de-anonymization...
In recent years research has shown that most social network sites pose serious privacy and security risks for individual users. From the existing analyses of privacy and security risks in social network sites we deduce that one of the biggest categories of privacy risks revolves around the notion of `audience segregation', i.e. the partitioning of different audiences and the compartmentalization of...
Location based social networking (LBSN) applications are part of a new suite of emerging social networking tools that run on the Web 2.0 platform. LBSN is the convergence between location based services (LBS) and online social networking (OSN). LBSN applications offer users the ability to look up the location of another “friend” remotely using a smart phone, desktop or other device, anytime and anywhere...
This paper is predominantly a review of literature on the emerging mobile application area known as location-based social networking. The study applies the social informatics framework to the exploratory question of what effect location based social networking may have on relationships between people. The classification model used in the paper relates previous research on location based services and...
Telecommunication and Internet services are constantly subject to changes, seeking the customers full satisfaction. Enriching these services with innovative approaches such as context-aware, social, mobile, adaptable and interactive mechanisms, enables users to experience a variety of personalized services seamlessly across different platforms and technologies. In this sense, it is expected that next...
Privacy has been recognized as a critical topic in the Internet for a long time, and technical developments in this area are ongoing. With the proliferation of various network sites and the unification of them, it has become more evident that the problem of privacy is not bounded by the perimeters of a specific system. Nowadays, many network services rapidly drive toward unification. In this paper,...
This paper contributes to the evolving body of knowledge pertaining to the study of digitally-enabled social networks, their usage, and their effects on people, organization, and society. We review the literature on social networks and develop a typology which distinguishes four aspects of digital social networks usage: (i) building and sustaining the network, (ii) observing the network, (iii), extracting...
Recent research identifies a growing privacy problem that exists within online social networks (OSNs). Several studies have shown how easily strangers can extract personal data about users from the network. Other studies have shown that an extremely small percentage of OSN users change their permissive default privacy settings. Complementary systems have been proposed to provide privacy for OSN users...
A common focus of internet privacy research has been on allowing users to maintain their anonymity in order that they may freely reveal personal aspects of themselves. However, with Web 2.0 and the increasing popularity of social networking sites, it has become increasingly commonplace for users to reveal their identities in order to advertise their on-line presence to their real-life associates....
Social Network Sites have a number of well publicized privacy issues stemming from the over disclosure of personal information. On one hand, users seem oblivious to their privacy, doing little to protect their personal data. On the other hand, there have been a number of privacy uproars and backlashes due to certain site features or behaviors. In this paper, we explore the privacy issues in social...
The world of “Social Networking”, a cultural phenomenon of recent years, has evolved an application paradigm, Instant Messaging (IM), into a feature rich, highly interactive and context sensitive service delivery environment. Terms such as buddy lists, presence and IM-bots have emerged as building blocks for services that significantly enhance the user experience. Mapping this paradigm to healthcare...
Prior research found that the majority of blogs are personal and relational in nature where bloggers reveal intimate information about themselves and target their public posts to their off-line social networks. These personal-journal style blogs expose their authors to potential privacy risks. Bloggers may choose to conceal their identities to mitigate the privacy concerns or disclose their identities...
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