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安在 · 2022年08月23日

B选项不明白 需要中文以及举例 以及针对本案例的解释

NO.PZ2021061603000005

问题如下:

An analyst uses a software program to analyze unstructured data-specifically, management's earnings call transcript for one of the companies in her research coverage. The program scans the words in each sentence of the transcript and then classifies the sentences as having negative, neutral, or positive sentiment.

The resulting set of sentiment data would most likely be characterized as:

选项:

A.ordinal data. B.discrete data. C.nominal data.

解释:

A is correct. Ordinal data are categorical values that can be logically ordered or ranked. In this case, the classification of sentences in the earnings call transcript into three categories (negative, neutral, or positive) describes ordinal data, as the data can be logically ordered from positive to negative. B is incorrect because discrete data are numerical values that result from a counting process.

In this case, the analyst is categorizing sentences (i.e., unstructured data) from the earnings call transcript as having negative, neutral, or positive sentiment.

Thus, these categorical data do not represent discrete data. C is incorrect because nominal data are categorical values that are not amenable to being organized in a logical order. In this case, the classification of unstructured data (i.e., sentences from the earnings call transcript) into three categories (negative, neutral, or positive) describes ordinal (not nominal) data, as the data can be logically ordered from positive to negative.

B选项不明白 需要中文以及举例 以及针对本案例的解释

1 个答案

星星_品职助教 · 2022年08月24日

同学你好,

B选项的视频讲解位置已在上个问题中回复,同样的问题提问一次即可。

“negative, neutral, or positive”可以理解为好、中、差。教材认为这种情况可以有逻辑的进行排序,例如从好到差进行排序。所以选择ordinal data。

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