次加性集函數 的英文怎麼說
中文拼音 [cìjiāxìngjíhánshǔ]
次加性集函數
英文
subadditive set function- 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
- 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
- 集 : gatherassemblecollect
- 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
- 數 : 數副詞（屢次） frequently; repeatedly
- 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
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In connection with the difference and distribution characteristic of the samples in sample space rs based on dga, a new self - adapted weight fuzzy omean clustering model of fault diagnosis of the power transformer based on the potential function is proposed. meanwhile, from the aspect of geometry characteristic of fc - divided in s dimension sample space, a method is proposed for the purpose of getting an effective adjacent radius, adaptive cluster number c and original cluster center of x sample set. for the diagnosis sample x, the property measure and diagnosis rule are proposed, which under the condition of potential density function that determine c number of optimal fuzzy cluster p1
根據以變壓器dga數據為特徵量的樣本空間各樣本差異特性以及樣本在空間r ~ s的分佈特性，首次提出了基於勢函數自適應加權的變壓器絕緣故障診斷的模糊c -均值聚類模型；同時，從s維樣本空間的f ~ c -劃分幾何特性出發，提出了一種求取樣本集的類勢有效鄰域半徑和自適應求取聚類數和聚類中心初值的方法；對一個待診斷樣本，設計了基於類勢密度函數意義下的屬性測度和診斷準則。The exact express of the intersection and union of the fuzzy sets defined by the rough membership function is given. two extension model of rst are introduced and their characters are discussed. we also discover the changes of the upper ( lower ) approximation after the attributes were added to or removed from the original attribution set
首先得到了由粗糙隸屬函數所定義模糊集的交與並的確切表達，改進了以往文獻的結果；其次，提出了兩種粗糙集的擴展模型，並對這兩種模型的性質進行了討論；最後，得出了屬性集增加或刪除屬性後集合的上下近似的變化關系。
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