discriminant coefficient 中文意思是什麼
discriminant coefficient
解釋
判別系數- discriminant : n. 【數學】判別式。
- 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。
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Firstly this paper introduced the principle of fisher linear discriminant function, and then present the subspace lda algorithm which project the data that is in high dimension space to eigenspace that is in low space and then maximize discriminant coefficient
本文介紹了fisher線性判別準則原理和實現過程，然後引入subspacelda方法，用pca將高維圖像數據投影到低維的特徵臉空間，再用lda最大化判別系數。 -
There are three means to decrease the number of attributes : delete irrelevant attributes to the task using fisher ' s discriminant ratio ; merge correlate attributes according to pearson ' s correlation coefficient ; reduce the dimensionality of the attribute vector by singular value decomposition
在屬性選取時根據fisher函數把對分類影響小的屬性刪除，由pearson ' scorrelationcoefficient將相關聯的屬性合併，用singularvaluedecomposition減少屬性向量空間的維度。 -
But statistically, the former manifests significant discriminant power while the latter does not. second, the above empirical results also show that the edf model has good performances in such developed countries as the u. s. a., etc, however, it is inappropriate to apply the edf model in china directly. third, the empirical formula in the new accord, which links the corporate default risk with corporate asset return correlation coefficient, cannot capture the credit risk of china ’ s listed companies very well
從中本文得到了如下的一些結論:第一，從直觀上看，基於會計信息的logit模型對我國上市公司的信用風險具有明顯的判別能力，基於市場信息的期權理論模型? edf模型也似乎具有一定的判別能力;但從嚴格的統計意義上來看， logit模型仍然具有顯著的判別能力，但edf模型的判別能力不明顯;第二，本文的實證結果同時也說明，雖然kmv公司提出的edf模型在美國等發達國家的應用具有較為良好的表現，但將edf模型直接應用到我國顯然並不適合;第三，新巴塞爾協議中將公司的違約風險與公司間資產收益率相關系數聯系起來的經驗公式也不能很好地捕捉中國上市公司信用風險方面的市場信息。
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