coefficient of association 中文意思是什麼
coefficient of association
解釋
伴聯系數- coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
- of : OF ＝Old French 古法語。
- association : n 1 聯合；聯系；聯盟；合夥；交際，交往。2 社團，協會；學會。3 【生物學】群落，社會。4 聯想。5 【...
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The interspecific association and correlation of 36 dominant species of the wetland vegetation were analyzed by using x2 - test, pearson ' s coefficient and spearman ' s coefficient. the results shown that those dominant populations composed 630 species - pairs ; among the 36 species were herbs, and the higher significant association ' s or correlation of species - pairs were 49, 88, 71, respectively, moreover, the significant association ' s or correlation of species - pairs were 31, 9, 7, respectively
採用x ~ 2檢驗、 pearson積矩相關系數和spearman秩相關系數等方法對濕地植物群落的種間關系研究，結果表明： 36個建群種群和優勢種群構成的630個種對（其中主要是草本植物） ，其中極顯著關聯的種對數分別為49 、 88 、 71 ，顯著關聯的種對數分別是31 、 9 、 7 。 -
X2 test with 2 2 contingency table and ochiai indices were used to analyze the interspecific association of 12 dominant species of meadow community and 20 dominant species of scrub community and 18 dominant species of tree community. pearson ' s correlation coefficient and spearman ' s rank correlation coefficient were also applied to calculate correlations between species
在該地區植被的優勢種的種間關系的研究方面，運用2 2列聯表、 x ~ 2檢驗方法對群落優勢種進行總體相關性和種對間的聯結性檢驗，利用共同出現百分率jaccord指數測定種對間的關聯度，應用pearson相關系數和spearman秩相關系數刻畫種對間的數量變化關系。 -
Coefficient of association duties
按系數課征的關稅 -
To be dealed agaist extended data, this thesis has improved on and come true arithmetic of time sequence model, and amended conventional decision tree arithmetic, introduced the decision tree arithmetic for extended data, namely threshold value control approach. according to threshold value and concept hierarchy, threshold value control approach can set up the concise and statistic classification tree. at the same time, based on the theory of the concept lattice, this thesis introduces the arithmetic of mining association rules based on quantified concept lattice reduced by uncertainty coefficient
針對泛化后的數據，本文改進並實現時間序列模式發現演算法；修改了傳統的決策樹演算法，提出了一種適合於泛化數據的決策樹構造演算法：閾值控製法，閾值控製法通過閾值和概念層次的控制，可以建立簡潔明了、具有統計意義的分類樹；在概念格理論基礎上提出了基於不確定系數法挖掘關聯規則的演算法。
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