AI600 Machine Learning Final Assesments

1-Which of the following is the correct sum of the given D and E matrix arrays?

array([[ 15, 4, 11, 28], [ 2, 6, 1, 6], [ 16, 22, -15, 18]])
array([[ 2, 14, 10, 9], [ 2, 6, 1, 6] [ 3, 5, 23, 11]])
array([[ 1, 7, 3, 9], [ 1, 4, -11, 5], [ 4, 5, 6, -7]])
array([[ 1, 7, 3, 9], [ 1, 4, -11, 5], [ 1, -2, 14, 9]])

2-Which of the following is the correct transpose function and output of the given F matrix array?

F.transpose, array([[3, 7, 1, 5], [3, 2, 4, 2], [7, 1, 5, 8], [2, 2, 1, 4], [4, 1, 1, 3]])
F.T, array([[3, 7, 1, 5], [3, 2, 4, 2], [7, 1, 5, 8], [2, 2, 1, 4], [4, 1, 1, 3]])
F.T, array([[4, 1, 1, 3], [2, 2, 1, 4], [7, 1, 5, 8], [3, 2, 4, 2], [3, 7, 1, 5]])
F.transpose, array([[4, 1, 1, 3], [2, 2, 1, 4], [7, 1, 5, 8], [3, 2, 4, 2], [3, 7, 1, 5]])

3-How we can multiply these matrixes and what is the shape of dot product?

np.dot(C,D) , 3×3
np.dot(D,C) , 4×4
C.dot(D) , 4×4
These matrices cannot be multiplied.

4-Which of the following is the given graphic?

Regression
Classification
Clustering
None of the above

5-What is the name of the model in the given visual?

Distribution-based Clustering
Centroid-based Clustering
Density-based Clustering
Hierarchical Clustering

6-Which of the following methods is used to determine the number of clusters in the 12-K Means algorithm?

Experimental Method
Elbow Method
Silhouette Coefficient
All

7-The main purpose of Unsupervised Learning is to classify tags correctly.

True
False

8-Which of the following can be the silhouette score of the example in the visual?

0
1
2
None of the above

9-We have information about people who have breast cancer. In line with this information, if we want to find out whether a person will get breast cancer or not, we can use:

Classification
Clustering
Regression
None of the above

10-What is the name of the process in the image?

Decreasing
Bagging
Cutting
Pruning