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The explosive growth of user-generated contents in social networking websites necessitates the recommendation functionality that can push to the user the content that he/she is most likely to be interested in. Such recommendation should happen in real-time as new contents become available, because "freshness" is an important consideration in people's content-consumption behavior. Representing...
Recent years have witnessed the explosive growth of recommender systems in various exciting application domains such as electronic commerce, social networking, and location-based services. A great many algorithms have been proposed to improve the accuracy of recommendation, but until recently the long tail problem rising from inadequate recommendation of niche items is recognized as a real challenge...
Link prediction is an important issue in Social Network Analysis area. Most of the existing link prediction methods aim to find the missing links or to predict the future links mainly based on a static network, ignoring the evolution of the network over time. This paper proposes a link prediction method that can learn from network dynamics. Using machine learning techniques, the method models the...
Synchronous online learning environment is becoming increasingly popular because of its ability to promote emergent interactions through real-time feedback. This study examined the role of co-regulation in synchronous online learning environment to capture the dynamics of social interaction in learning. A study was conducted to examine the relationships between co-regulation strategies and group performance...
Volunteer cloud computing is a paradigm where idle computing resources owned by a certain user are offered in the cloud to be utilised by others in order to reduce operational costs. Engaging people in volunteer cloud computing is an obstacle which requires novel motivational methods, ideally online. Gamification is a method for increasing people motivation and changing their behaviour towards certain...
Social networks and social network analysis are one of the hottest topics in Academia as well as in the industry nowadays. A collaboration (or a co-authorship) network, is a type of social networks in which the actors are scholars and researchers and a tie between two actors represents the fact that they have co-authored at least one paper together. The objective of this work is to study scientific...
Mobile users access location services from a location based server. While doing so, the user's privacy is at risk. The server has access to all details about the user. Example the recently visited places, the type of information he accesses. We have presented synergetic technique to safeguard location privacy of users accessing location-based services via mobile devices. Mobile devices have a capability...
Collaborative filtering (CF) over large datasets requires significant computing power. Due to this data owning organizations often outsource the computation of CF (including some abstraction of the data itself) to a public cloud infrastructure. However, this leads to the question of how to verify the integrity of the outsourced computation. In this paper, we develop verification mechanisms for two...
Spectrum sensing performance is highly degraded due to log-normal shadowing, resulting in more interference to the primary user caused by secondary users. However, collaborative sensing provides diversity that helps to alleviate the effect of shadowing. In this paper, a closed-form of the probability of detection under log-normal shadowing is derived, and the performance of this closed-form in collaborative...
This article focuses on the issue of the use of mobile technologies, especially on online Laboratories, as a support to professional development of adults in the work situation in Senegal. More specifically, how mobile learning can be a solution to access to education for nomadic professionals working specifically in the area of computer networks? This issue is at the heart of a doctoral research...
Cloud computing technology has been influential in overcoming problems in e-learning systems, such as the lack of scalability and storage limitation. Therefore, a framework for applying cloud computing on e-learning systems has been prepared. However, to develop a cloud-based e-learning system that matches well with the learners' needs and solves the current problems, it is important to know the learners'...
Second language (L2) motivation is of great importance for young foreign language learners, as it can both attract their interest towards learning the target language and improve their L2 achievements. Supporting students' need for relatedness (along with a need for competence and autonomy) is claimed to enhance behaviors that are self-motivated and self-determined. The purpose of this study is to...
Personal Learning Environments have recently emerged as a novel approach to learning, putting learners in the spotlight and providing them with the tools for building their own learning environments according to their specific learning needs and aspirations. This approach enables learners to take complete control over their learning, thus becoming self-regulated and independent. This paper introduces...
The change of technology and demanding competition has led the telecommunication business community to denote the vigour of human resource. Now, the organizations are probing the best skilled human resource to employ and retain for the sustainable development and competitive advantage for their organization. This encourages management to provide a good HR climate to develop employee's core competencies...
This paper presents a comprehensive review of Cyberinfrastructure (CI), an emerging collaborative research environment, including its representative applications in four science communities around the world. An in-depth analysis is also conducted to reveal the key functions and desired features that can be expected from modern CI systems.
In this study, a cooperative UAV and UGV platform is proposed to obtain a wide range of visual information. The UAV recognizes a pattern marker on UGV and tracks the UGV without user control. It can provide wide range of visual information for a user in the UGV. The UGV by a user is controlled equipped with an aluminum board. And the UAV can take off and land on the UGV. The UAV uses two cameras;...
Information and communication technologies have been widely adopted in most of educational institutions to support e-Learning through different learning methodologies such as computer supported collaborative learning, which has become one of the most influencing learning paradigms. In this context, e-Learning stakeholders, are increasingly demanding new requirements, among them, information security...
LIMMS, Laboratory for Integrated Micro Mechatronic Systems, is a joint laboratory between French CNRS and The University of Tokyo with special support from JSPS (Japan Society for the Promotion of Science). CNRS researchers and French postdoctoral fellows supported by JSPS come to LIMMS and perform research with their Japanese counterparts in 16 hosting laboratories. They typically stay around two...
Collaborative learning is proven to be effective in improving cognitive skills (e.g., critical thinking) and acquiring knowledge through group interactions and activities. An active research field known as Computer Supported Collaborative Learning (CSCL) aims to enrich collaborative learning using technology. These days, online learning environments equipped with various communication tools (e.g.,...
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