Requirements Correlation Identification Method for Launch Vehicle Based on Word Mover's Distance

In the forward design process of launch vehicle based on requirement engineering, the identification of requirements correlation directly affects the design quality and efficiency. Aiming at the problems of the traditional identification strategies' lacking efficiency and accuracy, a requirements correlation identification method using Word Mover's Distance is proposed. The hierarchical requirements model of the rocket system is constructed. In addition, Word Mover's Distance is adaptively improved to calculate the semantic distance between the requirement items, which accelerates the requirements correlation identification process. The accuracy and reliability of the proposed method is verified by the experiment. The research lays a foundation for improving the intelligent level of requirement modeling in the launch vehicle field.