rough sets 中文意思是什麼

rough sets 解釋
粗集
  • rough : adj 1 粗糙的 （opp smooth）; 凹凸的，崎嶇不平的 （opp level）。2 粗毛的，多毛的，蓬亂的（頭發）。...
  • sets : 集合
  1. Knowledge and classifications are related together by the theory of rough sets which claim is that knowledge is deep - seated in the classificatory abilities of human beings

    摘要粗糙集理論將知識與分類聯系在一起，認為知識就是人類所具有的分類能力。
  2. The roughness measures and data mining of s - rough sets

    粗糙集的粗糙度與數據挖掘
  3. A real rough set space and the concepts of real lower and upper approximation corresponding to real - valued attributes is studied. a rhombus neighborhood for som is proposed, and the combination of som and rough sets theory is explored in the dissertation. according to the distance between the weight of winner node and the input vector in the real rough sets space, some new weights learning rules are defined

    本文提出採用菱形鄰域代替一般的方形鄰域，可以減少待修正權重的數目;並利用實數粗糙空間的下、上近似集的精確概念劃分自組織映射的輸出結果，使得改進后的映射結果中各類樣本點之間有明顯的間隔，易於進行分類識別。
  4. The extending model of rough sets theory

    具體的研究內容如下： 1 、粗糙集理論擴展模型。
  5. Attribute reduction is the core of rough sets theory

    屬性約簡是粗糙集理論的核心內容。
  6. With the rough sets theory, people can process the undistinguished problem using uncompleted information or knowledge. and also enhance the capability to classify the imprecise data coming from observation or measurement

    粗糙集理論反映了人們以不完全信息或知識去處理一些不可分辨現象的能力，或依據觀察、度量得到某些不精確的結果而進行數據分類的能力。
  7. First we compare rough sets and random sets, and derive the relationship between belief function and lower probability

    首先將粗糙集與隨機集作了比較，並由此得出了信任函數與下概率的關系。
  8. Rs theory was proposed by pawlak in 1982. the focus of rs theory is on the ambiguity caused by limited discernibility of objects in domain of discourse. fuzzy set theory was proposed by zadeh in 1965 and hinges on the notion of a membership function on the domain of discourse, assigning to each object a grade of belongingness in order to represent an imprecise concept. the combination of fuzzy sets and rough sets are a new study and is very value in fact

    粗糙集理論是波蘭數學家z . pawlak於1982年提出來的兩種處理不確定和不精確數據的理論，是通過等價關系來研究對象之間的不可分辨關系;模糊集理論是美國控制論專家zadeh於1965年提出的一種處理非精確的現象的數學工具，是利用集合的特徵函數來處理邊界的不可定義性，在模糊集合中並沒有應用對象之間不可分辨性的概念。
  9. Both the certainty and uncertainty basis decision rules were extracted directly by using rough sets theory, and then formed libraries of decision rules of the information system

    利用粗糙集理論直接生成確定性基本決策規則和不確定性基本決策規則，形成信息系統的基本決策規則庫。
  10. Covering space and the unification of rough sets and topology

    覆蓋空間及粗糙集與拓撲的統一
  11. At last, rough sets and topology are unified by covering space

    最後，用覆蓋空間統一了粗糙集與拓撲。
  12. Rough sets and intuitionistic fuzzy special sets

    粗糙集與直覺模糊特殊集
  13. Applying rough sets a knowledge extraction methodology for agents is introduced

    提出一種基於粗糙集的agent知識獲取方法。
  14. As the problem of attribute is one of core problems in rough sets theory, this paper puts forward an improved algorithm based on genred reduction algorithm, what " s more, the improved algorithm is applied into client purchase analysis field

    屬性約簡問題是粗糙集理論的核心問題之一，本文提出了一種基於genred的最大概率因子的改進屬性約簡演算法，並將該演算法應用在市場營銷的客戶購買分析方面。
  15. A shot boundary detection method for news video based on rough sets and fuzzy clustering

    基於粗糙集和模糊聚類的新聞視頻鏡頭邊界檢測方法
  16. Construction of the model of rough sets with the grade of membership and weight

    帶隸屬度及權重的粗糙集模型的構建
  17. Many different techniques have been proposed for classification, including statistical approaches, neural networks, decision tree algorithm and rough sets

    現有數據分類方法有統計方法、決策樹分類方法、神經網路方法、粗集法等。
  18. Moreover, rough sets in a ring is studied and the concepts of rough subrings, rough ideals are been first introduced. under the condition of the congruence relation determined by a given ideal in a ring, rough sets of a subring is proved to be its subring, while that of a ideal is also proved to be its ideal

    進一步，研究了環中的粗糙集，引入了粗子環和粗理想的概念，證明了在環中一固定的理想所決定的同余關系下，子環的粗糙集是子環，左（右，雙）理想的粗糙集是左（右，雙）理想。
  19. Rough ideals in a semigroup have been studied and the concepts of rough subsemigroups, rough ideals been first introduced by kuroki n. under the condition of the congruence relation, rough sets of a subsemigroup was proved to be its subsemigroup, while that of a left ( right, bisides ) ideal was also proved to be its left ( right, bisides ) ideal. next, rough sets in a group have been studied and the concepts of rough subgroups, rough nornal subgroups been first introduced

    Kurokin研究了半群中的粗理想，首次提出了粗子半群和粗理想的概念，證明了在同余關系下，半群的粗糙集是半群，左（右，雙）理想的粗糙集是左（右，雙）理想。接著，他又研究了群中的粗糙集，首次提出了粗子群和粗正規子群的概念，證明了在群中一固定的正規子群所決定的同余關系下，子群的粗糙集是子群，正規子群的粗糙集是正規子群。
  20. In chapter 3, the relationship, combination and unification of graded rough sets and variable rough sets are researched

    第三章，研究了程度粗糙集和變精度粗糙集兩種廣義粗糙集模型的性質、關系和統一。
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