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浏览/检索结果: 共3条，第1-3条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 On Simplified Axiomatic Characterizations of (theta, sigma)-Fuzzy Rough Approximation Operators 期刊论文 INTERNATIONAL JOURNAL OF UNCERTAINTY FUZZINESS AND KNOWLEDGE-BASED SYSTEMS, 2017, 卷号: 25, 页码: 457-476 作者:  Zhang, Hongying;  Song, Haijuan 收藏  |  浏览/下载：10/0  |  提交时间：2019/11/26 approximation operators  Fuzzy rough sets  axiomatic characterizations  residuated implicators   Axiomatic characterizations of dual concept lattices 期刊论文 INTERNATIONAL JOURNAL OF APPROXIMATE REASONING, 2013, 卷号: 54, 期号: [db:dc_citation_issue], 页码: 690-697 作者:  Ma, Jian-Min;  Zhang, Wen-Xiu 收藏  |  浏览/下载：6/0  |  提交时间：2019/12/10 Dual operator  Generalized concept system  Set-theoretic operator  Concept lattice  Formal context   On axiomatic characterizations of three pairs of covering based approximation operators 期刊论文 Information Sciences, 2010, 卷号: Vol.180 No.2, 页码: 274-287 作者:  Yan-Lan Zhang;  Jinjin Li;  Wei-Zhi Wu 收藏  |  浏览/下载：2/0  |  提交时间：2019/02/25 Axioms  Covering based approximation operators  Covering generalized rough sets  Rough sets