D-DS-FN-23 試験問題を無料オンラインアクセス

What is the purpose of the process step "parsing" in text analysis?

• A.performs the search and/or retrieval in finding a specific topic or an entity in a document
• B.executes the clustering and classification to organize the contents
• C.computes the TF-IDF values for all keywords and indices
• D.imposes a structure on the unstructured/semi-structured text for downstream analysis

Refer to the exhibit, which shows pairwise counts for items purchased together.
Consider the following association rule: Milk -> Eggs
What is value of the lift?

• A.0.264
• B.120
• C.1.18
• D.70.81

Based on the exhibit, the table shows the values for the input Boolean attributes A, B, and C.
In addition, the exhibit shows the values for the output attribute "class".

Which decision tree is valid for the data?

• A.Tree B
• B.Tree C
• C.Tree A
• D.Tree D

A decision tree is being built. An internal node is being evaluated for partitioning on variables A and B.
The entropy of the internal node is 0.8. The entropy for each of the variables is as follows:
# Variable A: 0.5
# Variable B: 0.4
Which variable will be used to partition the data and what is the information gain?

• A.Variable B; information gain is 0.1
• B.Variable A; information gain is 0.5
• C.Variable B; information gain is 0.4
• D.Variable A; information gain is 0.1

You are building a logistic regression model to predict whether a tax filer will be audited within the next two years. Your training set population is 1000 filers. The audit rate in your training data is 4.2%.
What is the sum of the probabilities that the model assigns to all the filers in your training set that have been audited?

• A.42.0
• B.0.042
• C.4.2
• D.0.42