The insider on the outside: a novel system for the detection of information leakers in social networks

Confidential information is all too easily leaked by naive users posting comments. In this paper we introduce DUIL, a system for Detecting Unintentional Information Leakers. The value of DUIL is in its ability to detect those responsible for information leakage that occurs through comments posted on news articles in a public environment, when those articles have withheld material non-public information. DUIL is comprised of several artefacts, each designed to analyse a different aspect of this challenge: the information, the user(s) who posted the information, and the user(s) who may be involved in the dissemination of information. We present a design science analysis of DUIL as an information system artefact comprised of social, information, and technology artefacts. We demonstrate the performance of DUIL on real data crawled from several Facebook news pages spanning two years of news articles

Can small be beautiful? assessing image resolution requirements for mobile TV

Mobile TV services are now being offered in several countries, but for cost reasons, most of these services offer material directly recoded for mobile consumption (i.e. without additional editing). The experiment reported in this paper, aims to assess the image resolution and bitrate requirements for displaying this type of material on mobile devices. The study, with 128 participants, examined responses to four different image resolutions, seven video encoding bitrates, two audio bitrates and four content types. The results show that acceptability is significantly lower for images smaller than 168×126, regardless of content type. The effect is more pronounced when bandwidth is abundant, and is due to important detail being lost in the smaller screens. In contrast to previous studies, participants are more likely to rate image quality as unacceptable when the audio quality is high

Exploring the usage of a video application tool: Experiences in film studies

This paper explores our experiences in deploying a video application tool in film studies, and its evaluation in terms of realistic contextual end-users who have real tasks to perform in a real environment. We demonstrate our experiences and core lesson learnt in deploying our novel movie browser application with undergraduate and graduate students completing a Film Studies course in Dublin City University over a semester. We developed a system called MOVIEBROWSER2 that has two types of browsing modes: Advanced and Basic. In general, students found that the features we provided were beneficial for their studies. Some issues or mismatches arose during the trial. A ‘wish-list’ was drawn up that might be useful for the future system developer. The contribution and achievements reported in this article are on the demonstration and exploration of how advances in technology can be deployed, and media can be accessed in the context of a real user community. Exploring the usage indicates a positive acceptance among students, besides lessons learned that are important for further investigation

CoolBeans: Using Technology to Encourage Real-World Informal Interaction

Informal interaction is considered an important part of the work ethic and process in business and academia. We found that the new facilities for a computer science department at the University of Southampton were not conducive to this, and designed a technology-based solution to improve social awareness and encourage interaction using a presence-aware application and web interface. Users could use the system to find out who was taking a break and to invite others to do so. Initial results suggest that the project both encouraged social activity and became a popular fixture in the area on which efforts were focused

Social Media Influence: Metrics Matter

It is imperative for companies to engage in social media marketing as consumers are often dependent on online information and electronic word-of-mouth. Past literature claims that consumers evaluate the influence of communications differently on social media than they would in a traditional environment because of the nature of the internet. This study aims to analyze user’s perceptions of social media marketing influence and determines if user’s perception of influence changes based on the number of social media metrics (likes, comments, and shares) that accompany a Facebook post. The study also investigates if perceptions of influence vary depending on a user’s level of involvement in the situation. A 2x2 factorial design is utilized to manipulate both level of involvement and amount of likes, comments, and shares that accompany a Facebook post. The results contend that a high number of likes, comments, and shares on Facebook leads to increased perceptions of source credibility and information usefulness. In particular, the results prove that a high number of likes, comments, and shares on Facebook leads to increased purchase intention in a low-involvement situation. These results are essential to marketers as they prove the importance of curating engaging content on company’s Facebook pages in order to generate high amounts of likes, comments, and shares. Increasing the amount of likes, comments, and shares on Facebook will make the post more influential to users

Both Facts and Feelings: Emotion and News Literacy

News literacy education has long focused on the significance of facts, sourcing, and verifiability. While these are critical aspects of news, rapidly developing emotion analytics technologies intended to respond to and even alter digital news audiences’ emotions also demand that we pay greater attention to the role of emotion in news consumption. This essay explores the role of emotion in the “fake news” phenomenon and the implementation of emotion analytics tools in news distribution. I examine the function of emotion in news consumption and the status of emotion within existing news literacy training programs. Finally, I offer suggestions for addressing emotional responses to news with students, including both mindfulness techniques and psychological research on thinking processes

Are we relevant to the digital natives?

Bruce Grant-Braham looks at the latest hospitality information technology application

Which User Interaction for Cross-Language Information Retrieval? Design Issues and Reflections

A novel and complex form of information access is cross-language information retrieval: searching for texts written in foreign languages based on native language queries. Although the underlying technology for achieving such a search is relatively well understood, the appropriate interface design is not. This paper presents three user evaluations undertaken during the iterative design of Clarity, a cross-language retrieval system for rare languages, and shows how the user interaction design evolved depending on the results of usability tests. The first test was instrumental to identify weaknesses in both functionalities and interface; the second was run to determine if query translation should be shown or not; the final was a global assessment and focussed on user satisfaction criteria. Lessons were learned at every stage of the process leading to a much more informed view of what a cross-language retrieval system should offer to users

Efficient Video Indexing on the Web: A System that Leverages User Interactions with a Video Player

In this paper, we propose a user-based video indexing method, that automatically generates thumbnails of the most important scenes of an online video stream, by analyzing users' interactions with a web video player. As a test bench to verify our idea we have extended the YouTube video player into the VideoSkip system. In addition, VideoSkip uses a web-database (Google Application Engine) to keep a record of some important parameters, such as the timing of basic user actions (play, pause, skip). Moreover, we implemented an algorithm that selects representative thumbnails. Finally, we populated the system with data from an experiment with nine users. We found that the VideoSkip system indexes video content by leveraging implicit users interactions, such as pause and thirty seconds skip. Our early findings point toward improvements of the web video player and its thumbnail generation technique. The VideSkip system could compliment content-based algorithms, in order to achieve efficient video-indexing in difficult videos, such as lectures or sports.Comment: 9 pages, 3 figures, UCMedia 2010: 2nd International ICST Conference on User Centric Medi

Online civic intervention: A new form of political participation under conditions of a disruptive online discourse

In the everyday practice of online communication, we observe users deliberately reporting abusive content or opposing hate speech through counterspeech, while at the same time, online platforms are increasingly relying on and supporting this kind of user action to fight disruptive online behavior. We refer to this type of user engagement as online civic intervention (OCI) and regard it as a new form of user-based political participation in the digital sphere that contributes to an accessible and reasoned public discourse. Because OCI has received little scholarly attention thus far, this article conceptualizes low- and high-threshold types of OCI as different kinds of user responses to common disruptive online behavior such as hate speech or hostility toward the media. Against the background of participation research, we propose a theoretically grounded individual-level model that serves to explain OCI