極小風險函數 的英文怎麼說

中文拼音 [xiǎofēngxiǎnhánshǔ]
極小風險函數 英文
minimum risk function
  • : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • : Ⅰ形容詞1 (體積、面積、數量、強度等不大) small; little; petty; minor 2 (年紀小的; 年幼的) youn...
  • : Ⅰ名詞1 (空氣流動) wind 2 (風氣; 風俗) practice; atmosphere; custom 3 (景象) scene; view 4 ...
  • : Ⅰ名詞1 (險惡不容易通過的地方) a place difficult of access; narrow pass; defile 2 (危險) dange...
  • : 名詞1. [書面語] (匣; 封套) case; envelope 2. (信件) letter 3. (姓氏) a surname
  • : 數副詞(屢次) frequently; repeatedly
  • 風險 : risk; hazard; danger
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. At first we compare some kinds of investment loss function, analyze their defects and take the eignvalue of covariance matrix as the measurement of investment risk, the principle component as the information of investment market, sn and cv of the principle component as balance relationship between the profit and risk. then different portfolio selection indexes are given, and new portfolio selection models are presented, which are different from h. markowitz model. at last an example is also given

    本文首先比較了幾種常用的投資損失,在分析它們的缺陷與不足的基礎上,提出了採用收益率的協方差矩陣的特徵根刻畫投資的;用主成份綜合反映證券市場的信息;分別採用主成份的差異系與信噪比反映投資組合的期望收益率與之間的均衡關系,並以此作為投資組合損失最化與收益大化的指標;得到了不同於h
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