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cathyhu0829 · 2020年02月08日

问一道题:NO.PZ2018122801000073

问题如下:

Richard Frank, FRM, is running a regression model to forecast in-sample data. He is concerned about data mining and over-fitting the data. Which of the following criteria provides the highest penalty factor based on degrees of freedom?

选项:

A.

Mean squared error (MSE)

B.

Unbiased mean squared error (s2)

C.

Akaike information criterion (AIC)

D.

Schwarz information criterion (SIC)

解释:

D is correct.

考点 Selecting Forecasting Models

解析 The Schwarz information criterion (SIC) has the highest penalty factor. The mean squared error (MSE) does not penalize the regression model based on the increased number of parameters, k. The penalty factors for s2, AIC, and SIC are (T/T  k), e(2k/T), and T(k/T), respectively. Thus, SIC has the greatest penalty factor.

课件只讲了BIC

1 个答案

品职答疑小助手雍 · 2020年02月08日

同学你好,讲义282页讲了AIC和BIC,BIC也称SIC。

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