— Collaborative learning models are widely used in educational institutions. These models require a high interaction level among students and are mainly oriented towards in-class scenarios. But when collaborative models are deployed in a distant scenario, user expressiveness is significantly reduced thus creating a gap that hinders the effectiveness of this collaboration. A computer-supported m...

Traditional transaction models ensure robustness for distributed applications through the properties of view and failure atomicity. It has generally been felt that such atomicity properties are restrictive for a wide range of application domains; this is particularly true for robust, collaborative applications because such applications have concurrent components that are inherently long-lived a...

Within the development of partnership and sub-contracting activities, collaborative design and data management processes are crucial for faster and better product development. Collaborative environments and integrated design are now deeply linked with product development activities. These practices are used to combine the strength, expertise and know-how of the best diverse, geographically disp...

In this paper, we study collaborative filters that adapt future recommendations based on feedback (like/dislike) received for past recommendations. We consider a mathematical model where users and items are clustered, and ratings are noisy. We apply sequential decision techniques to study structure of collaborative filters that maximize the time average of the expected ratings. While our previo...

Data sparsity, that is a common problem in neighbor-based collaborative filtering domain, usually complicates the process of item recommendation. This problem is more serious in collaborative ranking domain, in which calculating the users’ similarities and recommending items are based on ranking data. Some graph-based approaches have been proposed to address the data sparsity problem, but they ...

Enterprise documents combine the representation of organizational processes and rules with knowledge and data to support human communication in a visual appealing and possibly interactive way. These characteristics are not only beneficial for the support of highly structured and optimized business processes but can be also leveraged to drive ad hoc collaborative innovation processes. However, c...

The novel concept of collaborative program visualization combines individually oriented cognitive tools with a collaborative environment. The concept is based on the socio-cultural constructivism in which collective actions are in the key role. In this context the learning process is acculturation into an established community of practice where the subjective feelings and knowledge of the parti...

In this paper, we intend to propose a novel pathway for achieving systems thinking—a prerequisite for strategic management—in the context of collaborative governance. This novel pathway, namely an interpretive-emergent-holistic approach, is grounded in complex adaptive systems framework and aimed at leveraging the computational power of today’s information technology in providing rigorous, syst...

The Atlantic Healthcare Collaboration for Innovation and Improvement in Chronic Disease (AHC) Quality Improvement Collaborative (QIC) in Eastern Canada provided an approach to spur system-level reform across multiple health systems for patients and families living with chronic disease. Developed and led by senior executives with a unique governance approach and involving clinical front-line tea...

In this paper, we consider the issue of integrating different structure services within a component-based open hypermedia system. We do so by considering the task of collaborative editing, which calls for a variety of different structures traditionally supplied by different structure services. We discuss the nature of collaborative editing and how it can be supported by a combination of spatial...