|
DDC
| 006.6 | |
Tác giả CN
| Tran, T T Huyen | |
Nhan đề
| Incrementally updating approximation. Incomplete information systems under the Variation of objects / Tran T T Huyen, Le Ba Dung, Nguyen Van Do..[and others] | |
Tóm tắt
| In covering approximation space, the rough membership functions give numerical charac-terizations of covering-based rough set approximations. It is considered as a tool for establishing the relationship between covering-based rough sets and fuzzy covering-based rough sets. In this paper, we introduce a new method to update the approximation sets with rough membership functions in covering approximation space. Firstly, we present the third types of rough membership functions and study their properties. And then, we consider the change of them while simultaneously adding and removing objects in the information system. Based on that change, we propose a method for upda- ting the approximation sets when the objects vary over time. We proved that the method facilitates knowledge maintenance without retrain from scratch. | |
Từ khóa tự do
| Covering-based rough set | |
Từ khóa tự do
| Incomplete information systems | |
Từ khóa tự do
| The third types
of rough membership functions
| |
Từ khóa tự do
| Rough set | |
Tác giả(bs) CN
| Le, Ba Dung | |
Tác giả(bs) CN
| Mai, Van Dinh | |
Tác giả(bs) CN
| Nguyen, Van Do | |
Nguồn trích
| Tạp chí Tin học và Điều khiển học = Journal of Computer Science And Cybernetics 2020tr. 70-84
Số: 04
Tập: 36 |
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| 082 | |a006.6 |
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| 100 | 10|aTran, T T Huyen |
|---|
| 245 | |aIncrementally updating approximation. Incomplete information systems under the Variation of objects / |cTran T T Huyen, Le Ba Dung, Nguyen Van Do..[and others] |
|---|
| 520 | |aIn covering approximation space, the rough membership functions give numerical charac-terizations of covering-based rough set approximations. It is considered as a tool for establishing the relationship between covering-based rough sets and fuzzy covering-based rough sets. In this paper, we introduce a new method to update the approximation sets with rough membership functions in covering approximation space. Firstly, we present the third types of rough membership functions and study their properties. And then, we consider the change of them while simultaneously adding and removing objects in the information system. Based on that change, we propose a method for upda- ting the approximation sets when the objects vary over time. We proved that the method facilitates knowledge maintenance without retrain from scratch. |
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| 653 | |aCovering-based rough set |
|---|
| 653 | |aIncomplete information systems |
|---|
| 653 | |aThe third types
of rough membership functions
|
|---|
| 653 | |aRough set |
|---|
| 700 | |aLe, Ba Dung |
|---|
| 700 | |aMai, Van Dinh |
|---|
| 700 | |aNguyen, Van Do |
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| 773 | 0 |tTạp chí Tin học và Điều khiển học = Journal of Computer Science And Cybernetics |d2020|gtr. 70-84|x1813-9663|v36|i04 |
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| 890 | |a0|b0|c1|d1 |
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