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MLS-C01 · Question #256

A retail company wants to use Amazon Forecast to predict daily stock levels of inventory. The cost of running out of items in stock is much higher for the company than the cost of having excess…

The correct answer is C. Train a model by using the Convolutional Neural Network - Quantile Regression (CNN-QR). WQL is particularly useful when there are different costs for underpredicting and overpredicting. By setting the weight (? of the wQL function, you can automatically incorporate differing penalties for underpredicting and overpredicting.

Modeling

Question

A retail company wants to use Amazon Forecast to predict daily stock levels of inventory. The cost of running out of items in stock is much higher for the company than the cost of having excess inventory. The company has millions of data samples for multiple years for thousands of items. The company's purchasing department needs to predict demand for 30-day cycles for each item to ensure that restocking occurs. A machine learning (ML) specialist wants to use item-related features such as "category," "brand," and "safety stock count." The ML specialist also wants to use a binary time series feature that has "promotion applied?" as its name. Future promotion information is available only for the next 5 days. The ML specialist must choose an algorithm and an evaluation metric for a solution to produce prediction results that will maximize company profit. Which solution will meet these requirements?

Options

  • ATrain a model by using the Autoregressive Integrated Moving Average (ARIMA) algorithm.
  • BTrain a model by using the Autoregressive Integrated Moving Average (ARIMA) algorithm.
  • CTrain a model by using the Convolutional Neural Network - Quantile Regression (CNN-QR)
  • DTrain a model by using the Convolutional Neural Network - Quantile Regression (CNN-QR)

How the community answered

(26 responses)
  • A
    8% (2)
  • B
    8% (2)
  • C
    81% (21)
  • D
    4% (1)

Explanation

WQL is particularly useful when there are different costs for underpredicting and overpredicting. By setting the weight (? of the wQL function, you can automatically incorporate differing penalties for underpredicting and overpredicting.

Topics

#Amazon Forecast#Time Series Forecasting#Quantile Regression#Deep Learning Algorithms

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