Multi-action-based approach for constructing knowledge map

To alleviate the information overload in the product design process, this work proposes a multi-action-based method for constructing knowledge map. Since the relationships of knowledge are implicit in the collected user activities, the method calculates the similarity according to the collected user activities. Three concepts, including knowledge, action and user, are explained first. Based on this, the similarity calculation method is illustrated in detail. The dependencies of actions and relations of the user are considered in the calculation method. Further, the approach of applying the constructed knowledge map to alleviate information overload is proposed. At last, the proposed method is validated by a knowledge search and result comparison experiment.