被同學(xué)
2020-11-21 15:432020 Mock Exam B - Morning Session 第7題: Wu’s recollection about the preparation of the textual data is most accurate with respect to: A numbers. B stop words. C lowercasing. 題目描述: Wu tells Quinn that she has heard a little about text mining for clues about an individual’s behavior and recalls that text preparation must be carried out by removing such items as HTML tags, punctuation, numbers, and stop words and eliminating the distinction between uppercase and lowercase words by lowercasing them all. 這道題不是問正確的做法嗎, 為什么選A呢? A numbers. ——不是應(yīng)該在去掉后增加注釋才正確嗎? B stop words、C lowercasing——這兩步應(yīng)該是“數(shù)據(jù)處理”過程里的動作,不是“數(shù)據(jù)準(zhǔn)備”里的動作,是這個意思吧?
所屬:CFA Level II > Quantitative Methods 視頻位置 相關(guān)試題
來源: 視頻位置 相關(guān)試題
1個回答
Kevin助教
2020-11-23 09:28
該回答已被題主采納
同學(xué)你好!
A:numbers的處理的確像你說的;是在文本準(zhǔn)備時(cleansing)
B和C是預(yù)處理時。
所以遇到這類問題,盡管A說的不夠全,但還是抓主要矛盾。
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