Abstract
In this paper, we use an example in evidence-based medicine to illustrate the practical application backgrounds of Pawlak’s rough membership function in real life. By this example, we also point out the limitations of Pawlak’s rough membership function in real life applications and the necessity for constructing rough membership functions for covering-based rough sets. Then, we construct covering-based rough membership function for one type of covering-based rough sets which was examined by Bonikowski et al. (Inf Sci 107:149–167, 1998), and use it to characterize the covering-based rough set approximations numerically. We not only present theoretical backgrounds for this covering-based rough membership function, but also show that this covering-based rough membership function is more realistic than Pawlak’s rough membership function in applications of real life.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
