The Journal of Grey System《灰色系统学报》(季刊)。The Journal of Grey System contributes to the advance of knowledge directly related to the fundamental theory and practical applications of Grey System. All the papers on developments of methodology, modeling technological and practical applications of Grey System are welcome. It aims to foster a professional platform between leading scientists and practitioners from around the world to express their concerns, describe new methods, models, techniques and discuss application skill with grey system, as well as various contributions of hybrid approaches combining grey system theory with other theories for tackling uncertain information more effectively and efficiently. In brief, the journal encourages and focuses on the development of functional methods, models, techniques and applications of Grey System.