normal variation in distribution 中文意思是什麼
normal variation in distribution
解釋
分佈的正常變異- normal : adj 1 正常的，平常的，普通的；平均的。2 正規的，標準的，額定的，規定的。3 智力正常的，精神健全的...
- variation : n 1 變化，變動。2 變量，變度，偏差。3 【語言】語尾變化；變體，異體；【數學】變分，協變；順列；【...
- in : adv 1 朝里，向內，在內。 A coat with a furry side in有皮裡子的外衣。 Come in please 請進來。 The ...
- distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
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After analyzing the distribution of most attack packet size and the distribution of small packet percentage in normal datasets, a based on small packet threshold adaptive sampling method is proposed to promote the capacity of capturing attack packets. sampling strategy adjusts automatically according to the variation of small packet in order to capture more attack packets
為了提高攻擊報文的捕獲性能，在分析了攻擊報文大小分佈和小報文在正常數據中的比例分佈的基礎上，本文提出了基於小報文閾值的自適應采樣演算法，監測小報文的變化情況動態地調整采樣策略，更多地捕獲攻擊報文，為後期的分析和處理打下良好的基礎。 -
In the paper, the main results are brought forth in five aspects as follows : ( 1 ). the analysis of statistics the characteristic indicated that the variation coefficient of the soil nitrogen density of 0 ~ 30cm depth is lower, the variation coefficient is only 3. 6 %, the variation coefficient of the nitrogen density of 0 ~ 100cm depth is much bigger than that the 0 ~ 30cm depth, it is 100 %. based on the second national soil general survey material, the average soil profile depth is 101cm, this is in corresponding with skew normal distribution, its standard deviation is 0. 0192
通過研究，得到以下認識與結果： （ 1 ）統計特徵分析表明， 0 30cm厚度土壤氮密度的變異系數較低，為3 . 6 ， 0 100cm厚度的氮密度的變異系數相對于來說就很大，為100 ；全國土壤剖面深度平均為101cm ，符合偏正態分佈，標準方差為0 . 0192 ； 0 30cm厚度土壤氮密度服從對數正態分佈，而0 100cm厚度土壤氮密度基本服從偏正態分佈。
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