최신 Databricks-Certified-Professional-Data-Scientist 무료덤프 - Databricks Certified Professional Data Scientist

문제1

In which of the scenario you can use the regression to predict the values

A. Samsung can use it for mobile sales forecast

B. All 1 ,2 and 3

C. Probability of the celebrity divorce

D. Mobile companies can use it to forecast manufacturing defects

E. Only 1 and 2

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제2

You are studying the behavior of a population, and you are provided with multidimensional data at the individual level. You have identified four specific individuals who are valuable to your study, and would like to find all users who are most similar to each individual. Which algorithm is the most appropriate for this study?

A. Association rules

B. K-means clustering

C. Linear regression

D. Decision trees

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제3

Under which circumstance do you need to implement N-fold cross-validation after creating a regression model?

A. There are missing values in the data.

B. There are categorical variables in the model.

C. The data is unformatted.

D. There is not enough data to create a test set.

정답: D

문제4

You are creating a model for the recommending the book at Amazon.com, so which of the following recommender system you will use you don't have cold start problem?

A. Naive Bayes classifier

B. User-based collaborative filtering

C. Content-based filtering

D. Item-based collaborative filtering

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제5

Which of the following is not a correct application for the Classification?

A. credit scoring

B. drug discovery

C. tumor detection

D. image recognition

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제6

Select the choice where Regression algorithms are not best fit

A. Employee status

B. Temperature in the atmosphere

C. Weight of the person is given

D. When the dimension of the object given

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제7

While working with Netflix the movie rating websites you have developed a recommender system that has produced ratings predictions for your data set that are consistently exactly 1 higher for the user-item pairs in your dataset than the ratings given in the dataset. There are n items in the dataset. What will be the calculated RMSE of your recommender system on the dataset?

A. n/2

B. 1

C. 0

D. 2

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제8

Which of the following metrics are useful in measuring the accuracy and quality of a recommender system?

A. Mean Absolute Error

B. Support Vector Count

C. Cluster Density

D. Sum of Absolute Errors

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제9

Which of the following could be features?

A. Symptoms of a diseases

B. Characteristics of an unidentified object

C. Words in the document

D. All 1,2 and 3 are possible

E. 0nly 1 and 2

정답: D

설명: (DumpTOP 회원만 볼 수 있음)

문제10

Marie is getting married tomorrow, at an outdoor ceremony in the desert. In recent years, it has rained only 5 days each year. Unfortunately, the weatherman has predicted rain for tomorrow. When it actually rains, the weatherman correctly forecasts rain 90% of the time. When it doesn't rain, he incorrectly forecasts rain 10% of the time. Which of the following will you use to calculate the probability whether it will rain on the day of Marie's wedding?

A. All of the above

B. Naive Bayes

C. Random Decision Forests

D. Logistic Regression

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

최신 Databricks-Certified-Professional-Data-Scientist 무료덤프 - Databricks Certified Professional Data Scientist

우리와 연락하기

유용한 링크

최신 업데이트