NO.PZ2015120204000039
问题如下：
Schultz and Steele meet to discuss plans for incorporating the sentiment data into a ML model. They discuss the differences in the steps between building ML models that use traditional structured data and building ML models that use textual big data. Steele tells Schultz:
Statement 1 The second step in building text-based ML models is text preparation and wrangling, whereas the second step in building ML models using structured data is data collection.
Statement 2 The fourth step in building both types of models encompasses data/text exploration.
Which of Steele’s statements relating to the steps in building structured databased and text-based ML models is correct?
选项：
A.Only Statement 1 is correct.
Only Statement 2 is correct.
Statement 1 and Statement 2 are correct
解释：
B is correct. The five steps in building structured data-based ML models are: 1) conceptualization of the modeling task, 2) data collection, 3) data preparation and wrangling, 4) data exploration, and 5) model training. The five steps in building text-based ML models are: 1) text problem formulation, 2) data (text) curation, 3) text preparation and wrangling, 4) text exploration, and 5) model training. Statement 1 is incorrect: Text preparation and wrangling is the third step in building text ML models and occurs after the second data (text) curation step. Statement 2 is correct: The fourth step in building both types of models encompasses data/text exploration.
data-curation是什么意思？
