Question 61

You have a large corpus of written support cases that can be classified into 3 separate categories: Technical Support, Billing Support, or Other Issues. You need to quickly build, test, and deploy a service that will automatically classify future written requests into one of the categories. How should you configure the pipeline?
  • Question 62

    You are working on a Neural Network-based project. The dataset provided to you has columns with different ranges. While preparing the data for model training, you discover that gradient optimization is having difficulty moving weights to a good solution. What should you do?
  • Question 63

    You work for a magazine publisher and have been tasked with predicting whether customers will cancel their annual subscription. In your exploratory data analysis, you find that 90% of individuals renew their subscription every year, and only 10% of individuals cancel their subscription. After training a NN Classifier, your model predicts those who cancel their subscription with 99% accuracy and predicts those who renew their subscription with 82% accuracy. How should you interpret these results?
  • Question 64

    A Machine Learning Specialist working for an online fashion company wants to build a data ingestion solution for the company's Amazon S3-based data lake.
    The Specialist wants to create a set of ingestion mechanisms that will enable future capabilities comprised of:
    * Real-time analytics
    * Interactive analytics of historical data
    * Clickstream analytics
    * Product recommendations
    Which services should the Specialist use?
  • Question 65

    A Marketing Manager at a pet insurance company plans to launch a targeted marketing campaign on social media to acquire new customers. Currently, the company has the following data in Amazon Aurora:
    * Profiles for all past and existing customers
    * Profiles for all past and existing insured pets
    * Policy-level information
    * Premiums received
    * Claims paid
    What steps should be taken to implement a machine learning model to identify potential new customers on social media?