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Social voting is an emerging new feature in online social networks. It poses unique challenges and opportunities for recommendation. In this paper, we develop a set of matrix-factorization (MF) and nearest-neighbor (NN)-based recommender systems (RSs) that explore user social network and group affiliation information for social voting recommendation. Through experiments with real social voting traces,...
Collaborative design entails sharing knowledge in an effective way and from a variety of sources, which raises the need of developing technology-enabled systems that can improve decision making by streamlining complex analysis and synthesis processes and facilitating communication and negotiation in the design process. While previous research predominantly focuses on a particular aspect of design...
Multidisciplinary models of complex products are developed by heterogeneous CAE tools in a distributed simulation environment. It is a key technology to integrate CAE models together, making them work collaboratively. In this paper, a modular method is proposed. First, a stage-by-stage modeling method is presented to reduce the interaction between modeling and simulation. Then, HLA and web service...
Simulation technology is widely applied in product development to make forecasts on the performance of design solutions for which it is difficult or not economical to develop physical prototypes. There are some circumstances, e.g. the development of mechatronic products, under which a number of simulations need to be used together. Therefore, it is necessary to develop a collaborative simulation platform...
Collaborative simulation is an important technology for complex engineering systems. The challenges of collaborative simulation are especially in model integration, interaction control and time advancement where a variety of collaborative disciplinary subsystems for time-synchronized running are handled dynamically in a distributed environment. In this paper, the formulized paradigm of multidisciplinary...
The design and development of complex engineering systems generally encompasses multi-disciplinary knowledge and entails systematic analysis at an early design stage. A paradigm known as collaborative simulation is introduced to address this characteristic: that is, decomposing the system into manageable subsystems and incorporating them at simulation run-time. However, many key limitations still...
In CSCL, the interaction extent between members is an important factor to the group learning effect. A reasonable measurement of interaction intensity can provide a basis for the managers when guiding the groups with weak interaction and also for learnerspsila self reflection. Aiming at the shortcoming of the present model, in the paper we analyzed the factors that affect interaction intensity, put...
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