representative fraction 中文意思是什麼

representative fraction 解釋
比例分數
  • representative : adj 1 表示的；表現的，描寫的；象徵的。2 能代表…的；可作…的典型[模範]的 （of）。3 代理的，代表的，...
  • fraction : n. 1. 小部分，碎片，片斷。2. 一些，一點兒。3. 【化學】分餾，分層，分級。4. 【宗教】聖餐麵包分切式。5. 【數學】分數。
  1. This algorithm adopts a middle ground between centroid - base and all - points - based approaches. instead of using a single centroid or all points to represent a cluster, a fixed number of representative points in space are chosen, these points represent and capture the geometry and shape of the cluster. in addition. the representative points of a cluster are generated by first selecting well - scattered objects for the cluster and then " shrinking " or moving them toward the cluster center by a specified fraction, or shrinking factor. the shrinking helps dampen the effects of outliers. therefore, cure is more robust to outliers

    該演算法選擇基於質心利基於代表對象方法之間的中間策略，它不用單個質心或簇中全部對象米代表一個簇，而是選擇數據空間中定數目的只有代表性的點，這些點代表和捕捉到了簇的形狀。此外，由於引入了收縮因子使代表點向簇小心「收縮」而使該演算法能夠較好地消除孤立點的影響，在處理孤立點上也更加健壯。
  2. 05. 01 test method for isolation of representative saturates fraction from low - olefinic petroleum naphthas

    從低烯石腦油中分離代表性飽和部分的試驗方法
  3. 05. 01 test method for isolation of representative saturates fraction from high - olefinic petroleum naphthas

    從高烯石腦油中分離代表性飽和部分的試驗方法
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