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While reviewing your data, you discover that your data set has a class imbalance. You are aware that the Accelerated Data Science (ADS) SDK provides multiple built-in automatic transformation tools for data set transformation. Which would be the right tool to correct any imbalance between the classes?
You are a data scientist leveraging the Oracle Cloud Infrastructure (OCI) Language AI service for various types of text analyses. Which TWO capabilities can you utilize with this tool?
The Accelerated Data Science (ADS) model evaluation classes support different types of machine
learning modeling techniques. Which three types of modeling techniques are supported by ADS
Evaluators?
Which of the following TWO non-open source JupyterLab extensions has Oracle Cloud In-frastructure (OCI) Data Science developed and added to the notebook session experience?
You want to make your model more parsimonious to reduce the cost of collecting and processing data. You plan to do this by removing features that are highly correlated. You would like to create a heat map that displays the correlation so that you can identify candidate features to remove. Which Accelerated Data Science (ADS) SDK method would be appropriate to display the correlation between Continuous and Categorical features?
When preparing your model artifact to save it to the Oracle Cloud Infrastructure (OCI) Data Science model catalog, you create a score.py file. What is the purpose of the score.py fie?
You want to evaluate the relationship between feature values and target variables. You have a
large number of observations having a near uniform distribution and the features are highly
correlated.
Which model explanation technique should you choose?
In the Oracle Cloud Infrastructure (OCI) Data Science service, how does Model Catalog help with
model deployment and management in MLOps?
As a data scientist, you are working on a global health data set that has data from more than 50
countries. You want to encode three features such as 'countries', 'race' and 'body organ' as
categories.
Which option would you use to encode the categorical feature?
As a data scientist, you are tasked with creating a model training job that is expected to take
different hyperparameter values on every run. What is the most efficient way to set those
parameters with Oracle Data Science Jobs?
As you are working in your notebook session, you find that your notebook session does not have
enough compute CPU and memory for your workload.
How would you scale up your notebook session without losing your work?
You are creating an Oracle Cloud Infrastructure (OCI) Data Science job that will run on a recurring
basis in a production environment. This job will pick up sensitive data from an Object Storage
bucket, train a model, and save it to the model catalog.
How would you design the authentication mechanism for the job?
During a job run, you receive an error message that no space is left on your disk device. To solve
the problem, you must increase the size of the job storage. What would be the most efficient way to
do this with Data Science Jobs?
You have an embarrassingly parallel or distributed batch job on a large amount of data that you
consider running using Data Science Jobs. What would be the best approach to run the workload?
Which Oracle Accelerated Data Science (ADS) classes can be used for easy access to data sets from
reference libraries and index websites such as scikit-learn?
As a data scientist, you are trying to automate a machine learning (ML) workflow and have
decided to use Oracle Cloud Infrastructure (OCI) AutoML Pipeline.
Which three are part of the AutoML Pipeline?
For your next data science project, you need access to public geospatial images.
Which Oracle Cloud service provides free access to those images?
Select two reasons why it is important to rotate encryption keys when using Oracle Cloud
Infrastructure (OCI) Vault to store credentials or other secrets.
Using Oracle AutoML, you are tuning hyperparameters on a supported model class and have
specified a time budget. AutoML terminates computation once the time budget is exhausted. What
would you expect AutoML to return in case the time budget is exhausted before hyperparameter
tuning is completed?