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yewei1989 · 2020年09月16日

问一道题:NO.PZ201512020300000509 第9小题 [ CFA II ]

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问题如下:

Regarding Comment #2, Moresanu has been thinking about the applications of neural networks (NNs) and deep learning (DL) to investment management. Which statement(s) best describe(s) the tasks for which NNs and DL are well-suited?

Statement I NNs and DL are well-suited for image and speech recognition, and natural language processing.
Statement II NNs and DL are well-suited for developing single variable ordinary least squares regression models.
Statement III NNs and DL are well-suited for modelling non-linearities and complex interactions among many features.

选项:

A.

Statement II only

B.

Statements I and III.

C.

Statements I, II and III.

解释:

B is correct. NNs and DL are well-suited for addressing highly complex machine learning tasks, such as image classification, face recognition, speech recognition and natural language processing. These complicated tasks are characterized by non-linearities and complex interactions between large numbers of feature inputs.
A is incorrect, because NNs and DL are well-suited for addressing highly complex machine learning tasks, not simple single variable OLS regression models.
C is incorrect, because NNs and DL are well-suited for addressing highly complex machine learning tasks, not simple single variable OLS regression models.


老师,请问Ols regression 具体指的是哪种regression能否举个例子?
1 个答案

星星_品职助教 · 2020年09月17日

同学你好,

OLS回归就是数量前两章学习的一元回归和多元回归,由于我们学习的回归分析都是基于OLS的方法来回归出系数的,所以又称OLS回归。