Online Access Free AIP-210 Practice Test

A change in the relationship between the target variable and input features is

• A.model decay.
• B.data drift.
• C.concept drift.
• D.covariate shift.

A data scientist is tasked to extract business intelligence from primary data captured from the public. Which of the following is the most important aspect that the scientist cannot forget to include?

• A.Data privacy
• B.Data security
• C.Cybersecurity
• D.Cyberprotection

Why do data skews happen in the ML pipeline?

• A.Test and evaluation data are designed incorrectly.
• B.There Is a mismatch between live input data and offline data.
• C.There is insufficient training data for evaluation.
• D.There is a mismatch between live output data and offline data.

You create a prediction model with 96% accuracy. While the model's true positive rate (TPR) is performing well at 99%, the true negative rate (TNR) is only 50%. Your supervisor tells you that the TNR needs to be higher, even if it decreases the TPR. Upon further inspection, you notice that the vast majority of your data is truly positive.
What method could help address your issue?

• A.Principal components analysis
• B.Quality filtering
• C.Normalization
• D.Oversampling

What is Word2vec?

• A.A bag of words.
• B.A matrix of how frequently words appear in a group of documents.
• C.A word embedding method that finds characteristics of words in a very large number of documents.
• D.A word embedding method that builds a one-hot encoded matrix from samples and the terms that appear in them.