Describe a neural network : Identify Variable Importance in Neural Networks

Describe a neural network : Identify Variable Importance in Neural Networks

Assessment

Interactive Video

Information Technology (IT), Architecture, Social Studies

University

Hard

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The video tutorial covers the implementation of neural networks for classification and regression tasks, focusing on identifying variable importance. It begins with data preparation, including reading and normalizing Excel data. The tutorial then demonstrates building neural network models and visualizing them using neural interpretation diagrams. It introduces Garson's and Olden's algorithms to evaluate variable importance, highlighting their ability to determine the positive or negative impact of variables on the response variable.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the Gauss algorithm and how does it evaluate relative variable importance?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the advantages of using the olden algorithm for evaluating variable importance.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How do different predictors influence the response variable strength according to the analysis?

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