Madanswer Technologies Interview Questions Data|Agile|DevOPs|Python - Recent questions in Feature Engineering https://madanswer.com/questions/feature-engineering Powered by Question2Answer Can you explain what dimensionality reduction is? https://madanswer.com/71933/can-you-explain-what-dimensionality-reduction-is Can you explain what dimensionality reduction is? Feature Engineering https://madanswer.com/71933/can-you-explain-what-dimensionality-reduction-is Tue, 04 Apr 2023 22:47:59 +0000 What are some good rules of thumb for applying transformations to numeric data? https://madanswer.com/71931/what-are-some-good-rules-of-thumb-for-applying-transformations-to-numeric-data What are some good rules of thumb for applying transformations to numeric data? Feature Engineering https://madanswer.com/71931/what-are-some-good-rules-of-thumb-for-applying-transformations-to-numeric-data Tue, 04 Apr 2023 22:47:38 +0000 What is the best way to select features in supervised learning problems? https://madanswer.com/71929/what-is-the-best-way-to-select-features-in-supervised-learning-problems What is the best way to select features in supervised learning problems? Feature Engineering https://madanswer.com/71929/what-is-the-best-way-to-select-features-in-supervised-learning-problems Tue, 04 Apr 2023 22:47:13 +0000 How do you handle mixed-type data types in Python? https://madanswer.com/71927/how-do-you-handle-mixed-type-data-types-in-python How do you handle mixed-type data types in Python? Feature Engineering https://madanswer.com/71927/how-do-you-handle-mixed-type-data-types-in-python Tue, 04 Apr 2023 22:46:54 +0000 What does it mean to bin numerical data? When should we use this technique? https://madanswer.com/71925/what-does-it-mean-to-bin-numerical-data-when-should-we-use-this-technique What does it mean to bin numerical data? When should we use this technique? Feature Engineering https://madanswer.com/71925/what-does-it-mean-to-bin-numerical-data-when-should-we-use-this-technique Tue, 04 Apr 2023 22:46:31 +0000 Can you give me an example of where feature scaling would be required? https://madanswer.com/71923/can-you-give-me-an-example-of-where-feature-scaling-would-be-required Can you give me an example of where feature scaling would be required? Feature Engineering https://madanswer.com/71923/can-you-give-me-an-example-of-where-feature-scaling-would-be-required Tue, 04 Apr 2023 22:46:05 +0000 What are some methods available for selecting features from a large dataset? https://madanswer.com/71921/what-are-some-methods-available-for-selecting-features-from-a-large-dataset What are some methods available for selecting features from a large dataset? Feature Engineering https://madanswer.com/71921/what-are-some-methods-available-for-selecting-features-from-a-large-dataset Tue, 04 Apr 2023 22:45:44 +0000 Do all features need to be scaled when using machine learning algorithms? https://madanswer.com/71919/do-all-features-need-to-be-scaled-when-using-machine-learning-algorithms Do all features need to be scaled when using machine learning algorithms? Feature Engineering https://madanswer.com/71919/do-all-features-need-to-be-scaled-when-using-machine-learning-algorithms Tue, 04 Apr 2023 22:45:28 +0000 How can imbalanced datasets affect machine learning models? https://madanswer.com/71917/how-can-imbalanced-datasets-affect-machine-learning-models How can imbalanced datasets affect machine learning models? Feature Engineering https://madanswer.com/71917/how-can-imbalanced-datasets-affect-machine-learning-models Tue, 04 Apr 2023 22:45:11 +0000 What are some ways to deal with sparse data? https://madanswer.com/71915/what-are-some-ways-to-deal-with-sparse-data What are some ways to deal with sparse data? Feature Engineering https://madanswer.com/71915/what-are-some-ways-to-deal-with-sparse-data Tue, 04 Apr 2023 22:44:45 +0000 What are some different techniques for dealing with categorical variables? https://madanswer.com/71913/what-are-some-different-techniques-for-dealing-with-categorical-variables What are some different techniques for dealing with categorical variables? Feature Engineering https://madanswer.com/71913/what-are-some-different-techniques-for-dealing-with-categorical-variables Tue, 04 Apr 2023 22:44:20 +0000 If there are two correlated variables, which one should you keep? https://madanswer.com/71911/if-there-are-two-correlated-variables-which-one-should-you-keep If there are two correlated variables, which one should you keep? Feature Engineering https://madanswer.com/71911/if-there-are-two-correlated-variables-which-one-should-you-keep Tue, 04 Apr 2023 22:43:59 +0000 What’s the difference between feature extraction and feature selection? When should each one be used? https://madanswer.com/71909/whats-difference-between-feature-extraction-feature-selection-when-should-each-used <p>What’s the difference between feature extraction and feature selection? When should each one be used?</p><div></div> Feature Engineering https://madanswer.com/71909/whats-difference-between-feature-extraction-feature-selection-when-should-each-used Tue, 04 Apr 2023 22:43:40 +0000 What can be done if you find that most of your features have no predictive power on your target variable? https://madanswer.com/71907/what-can-done-find-that-most-your-features-have-predictive-power-your-target-variable What can be done if you find that most of your features have no predictive power on your target variable? Feature Engineering https://madanswer.com/71907/what-can-done-find-that-most-your-features-have-predictive-power-your-target-variable Tue, 04 Apr 2023 22:43:15 +0000 Can you explain how overfitting happens during model training? https://madanswer.com/71905/can-you-explain-how-overfitting-happens-during-model-training Can you explain how overfitting happens during model training? Feature Engineering https://madanswer.com/71905/can-you-explain-how-overfitting-happens-during-model-training Tue, 04 Apr 2023 22:42:54 +0000 How do you overcome challenges with missing data? https://madanswer.com/71903/how-do-you-overcome-challenges-with-missing-data How do you overcome challenges with missing data? Feature Engineering https://madanswer.com/71903/how-do-you-overcome-challenges-with-missing-data Tue, 04 Apr 2023 22:42:31 +0000 What are some common ways to gather domain knowledge? https://madanswer.com/71901/what-are-some-common-ways-to-gather-domain-knowledge What are some common ways to gather domain knowledge? Feature Engineering https://madanswer.com/71901/what-are-some-common-ways-to-gather-domain-knowledge Tue, 04 Apr 2023 22:42:09 +0000 Why is it important to understand your data before starting a project? https://madanswer.com/71899/why-is-it-important-to-understand-your-data-before-starting-a-project Why is it important to understand your data before starting a project? Feature Engineering https://madanswer.com/71899/why-is-it-important-to-understand-your-data-before-starting-a-project Tue, 04 Apr 2023 22:41:51 +0000 Can you explain what the term “feature” means in machine learning? https://madanswer.com/71897/can-you-explain-what-the-term-feature-means-in-machine-learning Can you explain what the term “feature” means in machine learning? Feature Engineering https://madanswer.com/71897/can-you-explain-what-the-term-feature-means-in-machine-learning Tue, 04 Apr 2023 22:41:31 +0000 What is feature engineering? https://madanswer.com/71895/what-is-feature-engineering What is feature engineering? Feature Engineering https://madanswer.com/71895/what-is-feature-engineering Tue, 04 Apr 2023 22:41:02 +0000