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In current education, it is difficult for a teacher to know the engagement of each student, the contents that students cannot understand and the reason why students cannot perform sufficiently in the quizzes and exams. To study student engagement in classroom, we digitize materials used in lectures, including textbooks and collect event logs of tablets used by students. By analyzing these logs, we...
Trolling describes a range of antisocial online behaviors that aim at disrupting the normal operation of online social networks and media. Combating trolling is an important problem in the online world. Existing approaches rely on human-based or automatic mechanisms for identifying trolls and troll posts. In this paper we take a novel approach to the trolling problem: our goal is to identify the targets...
Inferring potential links is a fundamental problem in social networks. In the link recommendation problem, the aim is to suggest a list of potential people to each user, ordered by the preferences of the user. Although various approaches have been developed to solve this problem, the difficulty of producing a ranking list with high precision at the top -- the most important consideration for real...
During this era of internet, crowd-sourcing is a very popular way of accommodating a large group of people contributing together to accomplish a goal. One of the most remarkable examples of such crowd sourced content is the Wikipedia, where millions of articles have been produced by volunteers from all over the world. Wikipedia allows anyone to edit articles without being authorized. Although creation...
Most traditional social networks rely on explicitly given relations between users, their friends and followers. In this paper, we go beyond well structured data repositories and create a person-centric network from unstructured text — the Wikipedia Social Network. To identify persons in Wikipedia, we make use of interwiki links, Wikipedia categories and person related information available in Wikidata...
Public user profile information is a common feature of modern websites. These profiles can provide a valuable resource for investigators tracing digital artefacts of crime, but current approaches are limited in their ability to link identities across different platforms. We address this through a service-independent model of user profile information, grounded in the details visible on a number of...
The modern age has seen an exponential growth of social network data available on the web. Analysis of these networks reveal important structural information about these networks in particular and about our societies in general. More often than not, analysis of these networks is concerned in identifying similarities among social networks and how they are different from other networks such as protein...
This study aimed at assessing the students' perceptions about the online learning environment in two b-learning courses in a Portuguese private University. An learning environment, supported on two communication platforms — Moodle for asynchronous interaction and Cisco WebEx for synchronous interaction — was developed for two Information Systems first cycle classes; the institution had no previous...
Because of the variety of types of collaboration services used in enterprises today, there is difficulty in integrating related work threads from different collaboration environments. Each collaboration tool differs in storage model, APIs, content organization, content addressing, content formats, user authentication, and user interface. Nevertheless users prefer to be able to choose which collaboration...
What kind of knowledge activities are required in order for students to conduct online group work activities successfully in distance education? This paper reports on the knowledge activities involved within online group work in distance education. It explains the types of knowledge used in these activities. The research is a qualitative case study set within an activity theory framework. Participatory...
Teacher-oriented Students is the future teachers of Primary and Secondary Education, the ability of Informal Learning is important to achieve life-long learning and the development of future career. This paper introduced the definition of Informal Learning and manifestation of Informal Learning for Teacher-oriented Students, analyzed the types of e-learning platforms commonly used to learn, put forward...
Word processing was one of the earliest uses for small workstations, but we quickly learned that desktop computers were far more than e-typewriters. Similarly, social media offers tools that could significantly improve our effectiveness at managing the avalanche of information and decisions associated with space flight projects. However, “could” does not necessarily equal “should”. We must wield two-edged...
The way teams use virtual collaboration tools, such as wikis, email systems, social networks, or version control systems can provide indicators for the success or failure of projects. We previously created a platform that allows to collect and analyze these virtual collaboration activities during project runtime in a non-interfering manner. In this paper, we provide a formal definition of collaboration...
E-learning technologies such as Web-CT, Blackboard, Moodle and Sakai are the common learning management systems used in teaching these days. Using technology to support group work is a more recent practice than using it for teaching material delivery. Research in preparing students to use technology for online group work especially in distance education is limited. This research is a case study that...
Maintaining good relationships with a customer over a long period of time has never been an easy task especially in the case of remote collaboration. Why the customer that was loyal to the vendor at the beginning of their collaboration looses the loyalty after 1 or 2 years of collaboration even though the level of provided services remains the same? One of the reasons of such situation are customer's...
Network era provides a broad space of cooperation for e-commerce and digital library literature which in particular makes the collecting-editing work of the library and the information exchange with the outside world become easier. This paper discusses the impact of introducing e-commerce on e-book collecting-editing work, and then describes the channels and forms of using e-commerce in library collecting-editing...
The virtual library implies no sense of physical location, whether for the end user or for the source. The user can access the information from anywhere and the information can be held anywhere. There is a sense of randomness in and its irrelevant to the user where the information is held.
Building an expert finding system is very important for many applications especially in the academic environment. Previous work uses e-mails or Web pages as corpus to analyze the expertise for each expert. In this paper, we present an Expert Finding System, abbreviated as EFS to build experts' profiles by using their journal publications. For a given proposal, the EFS first looks up the Wikipedia...
The arrival of new technologies to universities creates new situations and problems that must be solved in order to improve the care, support and tutoring provided to students. In many cases, the communication flows between teachers and students place an excessive demand on the teacher's response capacity. This paper describes a system designed to answer automatically the questions of students, using...
Nowadays we participate in conferencing through the Web page or e-mail. In conventional systems, the submission of papers has often been carried out by e-mail. The authors have succeeded in the feasible implementation of a paper submission and publication support system through a Web browser. In this paper, we introduce the system and its software architecture.
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