{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T05:18:17Z","timestamp":1769836697374,"version":"3.49.0"},"reference-count":43,"publisher":"SAGE Publications","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IFS"],"published-print":{"date-parts":[[2022,3,4]]},"abstract":"<jats:p>Neighborhood rough sets (NRS) are the extended model of the classical rough sets. The NRS describe the target concept by upper and lower neighborhood approximation boundaries. However, the method of approximately describing the uncertain target concept with existed neighborhood information granules is not given. To solve this problem, the cost-sensitive approximation model of the NRS is proposed in this paper, and its related properties are analyzed. To obtain the optimal approximation granular layer, the cost-sensitive progressive mechanism is proposed by considering user requirements. The case study shows that the reasonable granular layer and its approximation can be obtained under certain constraints, which is suitable for cost-sensitive application scenarios. The experimental results show that the advantage of the proposed approximation model, moreover, the decision cost of the NRS approximation model will monotonically decrease with granularity being finer.<\/jats:p>","DOI":"10.3233\/jifs-212234","type":"journal-article","created":{"date-parts":[[2022,1,7]],"date-time":"2022-01-07T11:45:09Z","timestamp":1641555909000},"page":"3993-4003","source":"Crossref","is-referenced-by-count":1,"title":["The cost-sensitive approximation of neighborhood rough sets and granular layer selection"],"prefix":"10.1177","volume":"42","author":[{"given":"Jie","family":"Yang","sequence":"first","affiliation":[{"name":"School of Physics and Electronic Science, Zunyi Normal University, Zunyi, China"},{"name":"National Pilot School of Software, Yunnan University, Kunming, China"}]},{"given":"Tian","family":"Luo","sequence":"additional","affiliation":[{"name":"School of Physics and Electronic Science, Zunyi Normal University, Zunyi, 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