{"id":1066,"date":"2026-02-17T06:20:01","date_gmt":"2026-02-17T06:20:01","guid":{"rendered":"https:\/\/blog.gtracademy.org\/?p=1066"},"modified":"2026-02-17T06:20:02","modified_gmt":"2026-02-17T06:20:02","slug":"feature-engineering-in-data-science-curriculum","status":"publish","type":"post","link":"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/","title":{"rendered":"Feature Engineering in Data Science Curriculum"},"content":{"rendered":"\n<p>A lot of the time, students think that choosing the \u201cbest\u201d algorithm is the key to success when they first start learning data science. I used to think that too. I spent weeks making small changes to models, changing parameters, and trying more advanced methods, but I didn\u2019t see much of a difference. Then someone higher up looked at my work and said something that stuck with me:<\/p>\n\n\n\n<p>That moment perfectly shows why Feature Engineering is such an important part of the <strong><a href=\"https:\/\/gtracademy.org\/data-science-ai-course-online-with-ml-dl-nlp\/\">Data Science<\/a><\/strong> Curriculum. It\u2019s not a side issue. It\u2019s the most important part of data science in the real world.<\/p>\n\n\n\n<p>This blog is written in a way that I wish someone had explained feature engineering to me: clearly, practically, and without too much information.<\/p>\n\n\n\n<p>Connect With Us:\u00a0<a href=\"https:\/\/api.whatsapp.com\/send\/?phone=919650518049&amp;text=Hi%2C%20I%20want%20to%20know%20more%20about%20GTR%20academy%20courses\" target=\"_blank\" rel=\"noreferrer noopener\">WhatsApp<\/a><\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1067\" src=\"https:\/\/blog.gtracademy.org\/wp-content\/uploads\/2026\/02\/GTR-7-1-1024x576.webp\" alt=\"Data Science\" class=\"wp-image-1067\" srcset=\"https:\/\/gtracademy.org\/blog\/wp-content\/uploads\/2026\/02\/GTR-7-1-1024x576.webp 1024w, https:\/\/gtracademy.org\/blog\/wp-content\/uploads\/2026\/02\/GTR-7-1-300x169.webp 300w, https:\/\/gtracademy.org\/blog\/wp-content\/uploads\/2026\/02\/GTR-7-1-768x432.webp 768w, https:\/\/gtracademy.org\/blog\/wp-content\/uploads\/2026\/02\/GTR-7-1-1536x864.webp 1536w, https:\/\/gtracademy.org\/blog\/wp-content\/uploads\/2026\/02\/GTR-7-1-747x420.webp 747w, https:\/\/gtracademy.org\/blog\/wp-content\/uploads\/2026\/02\/GTR-7-1-150x84.webp 150w, https:\/\/gtracademy.org\/blog\/wp-content\/uploads\/2026\/02\/GTR-7-1-696x392.webp 696w, https:\/\/gtracademy.org\/blog\/wp-content\/uploads\/2026\/02\/GTR-7-1-1068x601.webp 1068w, https:\/\/gtracademy.org\/blog\/wp-content\/uploads\/2026\/02\/GTR-7-1.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#What_Is_Feature_Engineering_in_Plain_English\" >What Is Feature Engineering in Plain English?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Why_Feature_Engineering_Should_Be_a_Big_Deal_in_Data_Science_Classes\" >Why Feature Engineering Should Be a Big Deal in Data Science Classes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#What_You_Really_Learn_About_Feature_Engineering_in_the_Data_Science_Curriculum\" >What You Really Learn About Feature Engineering in the Data Science Curriculum<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Comprehending_Data_Types_and_Characteristics\" >Comprehending Data Types and Characteristics<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Things_You_Will_Learn_About_Core_Feature_Engineering\" >Things You Will Learn About Core Feature Engineering<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#1_Dealing_with_Missing_Values\" >1. Dealing with Missing Values<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#2_Putting_Categorical_Variables_into_Code\" >2. Putting Categorical Variables into Code<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#3_Scaling_and_Normalization_of_Features\" >3. Scaling and Normalization of Features<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#4_Making_New_Features\" >4. Making New Features<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Feature_Engineering_in_Machine_Learning_Where_the_Action_Is\" >Feature Engineering in Machine Learning: Where the Action Is<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Real-World_Example_of_Feature_Engineering\" >Real-World Example of Feature Engineering<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Feature_Selection_How_to_Know_What_to_Take_Out\" >Feature Selection: How to Know What to Take Out<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Feature_Engineering_Notes_vs_Real-Life_Skills\" >Feature Engineering Notes vs. Real-Life Skills<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#How_Data_Science_Programs_Rate_Feature_Engineering\" >How Data Science Programs Rate Feature Engineering<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Careers_in_Feature_Engineering_and_Modern_Data_Science\" >Careers in Feature Engineering and Modern Data Science<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#The_Right_Way_to_Learn_Feature_Engineering\" >The Right Way to Learn Feature Engineering<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Feature_Engineering_Is_More_of_an_Art_Than_a_Science\" >Feature Engineering Is More of an Art Than a Science<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#10_Common_Questions_FAQ\" >10 Common Questions (FAQ)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#1_Do_you_have_to_do_feature_engineering_in_data_science\" >1. Do you have to do feature engineering in data science?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#2_Is_it_possible_for_automated_tools_to_take_the_place_of_feature_engineering\" >2. Is it possible for automated tools to take the place of feature engineering?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#3_Do_models_that_use_deep_learning_need_feature_engineering\" >3. Do models that use deep learning need feature engineering?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#4_Is_feature_engineering_a_part_of_data_preprocessing\" >4. Is feature engineering a part of data preprocessing?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#5_How_long_does_it_take_to_learn_how_to_make_features\" >5. How long does it take to learn how to make features?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#6_Do_you_need_to_know_how_to_code_to_do_feature_engineering\" >6. Do you need to know how to code to do feature engineering?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#7_Do_all_models_have_the_same_features\" >7. Do all models have the same features?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#8_Can_feature_engineering_make_the_model_much_more_accurate\" >8. Can feature engineering make the model much more accurate?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#9_Do_interviews_test_feature_engineering\" >9. Do interviews test feature engineering?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#10_Can_people_who_are_just_starting_out_learn_feature_engineering_early\" >10. Can people who are just starting out learn feature engineering early?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/gtracademy.org\/blog\/feature-engineering-in-data-science-curriculum\/#Final_Thoughts\" >Final Thoughts<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_Feature_Engineering_in_Plain_English\"><\/span><strong>What Is Feature Engineering in Plain English?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Before we get into the details of the curriculum, let\u2019s answer a simple question that a lot of beginners have: what is a feature in feature engineering?<\/p>\n\n\n\n<p>A feature is just an input variable that a model uses to make predictions.<br>Feature engineering is the process of making, changing, and choosing the inputs so that the model can learn better.<\/p>\n\n\n\n<p><strong>To sum up:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Data that isn\u2019t processed is messy<\/li>\n\n\n\n<li>Models don\u2019t get the big picture<\/li>\n\n\n\n<li>Feature engineering fills that gap<\/li>\n<\/ul>\n\n\n\n<p>That\u2019s why feature engineering is often more important than the algorithm itself.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Feature_Engineering_Should_Be_a_Big_Deal_in_Data_Science_Classes\"><\/span><strong>Why Feature Engineering Should Be a Big Deal in Data Science Classes<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Feature engineering is not just a checkbox topic in a good data science curriculum. It\u2019s woven into:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Preparing data<\/li>\n\n\n\n<li>Data analysis that looks for patterns<\/li>\n\n\n\n<li>Pipelines for machine learning<\/li>\n\n\n\n<li>Checking the model<\/li>\n<\/ul>\n\n\n\n<p>This naturally leads to another question that comes up a lot: is feature engineering a part of data preprocessing?<br>Yes, but it\u2019s more than just basic cleaning. Preprocessing gets data ready; feature engineering makes it better.<\/p>\n\n\n\n<p>This is very clear in good programs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_You_Really_Learn_About_Feature_Engineering_in_the_Data_Science_Curriculum\"><\/span><strong>What You Really Learn About Feature Engineering in the Data Science Curriculum<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Let\u2019s look at how feature engineering is usually taught when the curriculum is set up the right way.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Comprehending_Data_Types_and_Characteristics\"><\/span><strong>Comprehending Data Types and Characteristics<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Students need to know about data types and features in feature engineering before they can make features.<\/p>\n\n\n\n<p><strong>You will learn how to deal with:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Numbers (both continuous and discrete)<\/li>\n\n\n\n<li>Data that can be put into groups<\/li>\n\n\n\n<li>Variables in order<\/li>\n\n\n\n<li>Features for date and time<\/li>\n\n\n\n<li>Data that isn\u2019t structured and text<\/li>\n<\/ul>\n\n\n\n<p>You need a different plan for each type. One of the quickest ways to hurt model performance is to treat them all the same.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Things_You_Will_Learn_About_Core_Feature_Engineering\"><\/span><strong>Things You Will Learn About Core Feature Engineering<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Most courses cover more than just theory when it comes to feature engineering.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Dealing_with_Missing_Values\"><\/span><strong>1. Dealing with Missing Values<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>You learn why data is missing and how different strategies affect learning instead of just filling in the gaps.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Putting_Categorical_Variables_into_Code\"><\/span><strong>2. Putting Categorical Variables into Code<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>There are pros and cons to each type of encoding: one-hot, label, and target. Knowing when to use what is important.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Scaling_and_Normalization_of_Features\"><\/span><strong>3. Scaling and Normalization of Features<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A lot of models are affected by scale. Students learn how and when to make features standard or normal.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Making_New_Features\"><\/span><strong>4. Making New Features<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>This is where logic and creativity come together. Combining variables, finding patterns, or using domain knowledge often leads to better results than changing the model in any way.<\/p>\n\n\n\n<p>A good example of feature engineering can greatly improve performance with very little effort.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Feature_Engineering_in_Machine_Learning_Where_the_Action_Is\"><\/span><strong>Feature Engineering in Machine Learning: Where the Action Is<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>This is where theory becomes real.<\/p>\n\n\n\n<p><strong>Students learn how to do feature engineering in machine learning by understanding that:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tree-based models react to features in a different way than linear models do<\/li>\n\n\n\n<li>Bad features can make overfitting happen<\/li>\n\n\n\n<li>Good features make it easier to understand<\/li>\n<\/ul>\n\n\n\n<p>You also learn that some algorithms make it less necessary to do a lot of feature engineering, but they never make it completely unnecessary.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Real-World_Example_of_Feature_Engineering\"><\/span><strong>Real-World Example of Feature Engineering<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Let\u2019s look at a basic example of feature engineering in a data science curriculum.<\/p>\n\n\n\n<p><strong>Think about how to guess the prices of houses:<\/strong><\/p>\n\n\n\n<p><strong>Raw data:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Size<\/li>\n\n\n\n<li>Location<\/li>\n\n\n\n<li>Number of rooms<\/li>\n\n\n\n<li>Year built<\/li>\n<\/ul>\n\n\n\n<p><strong>Feature engineering adds:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cost per square foot<\/li>\n\n\n\n<li>How old is the house?<\/li>\n\n\n\n<li>How far away is the city center?<\/li>\n\n\n\n<li>Averages for each neighborhood<\/li>\n<\/ul>\n\n\n\n<p>Same algorithm. The same data set. Results that are completely different.<\/p>\n\n\n\n<p>That\u2019s what feature engineering can do.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Feature_Selection_How_to_Know_What_to_Take_Out\"><\/span><strong>Feature Selection: How to Know What to Take Out<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Adding features is only part of feature engineering; removing features that aren\u2019t needed is also part of it.<\/p>\n\n\n\n<p><strong>A lot of times, curricula teach:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Analysis of correlation<\/li>\n\n\n\n<li>How important a feature is<\/li>\n\n\n\n<li>Fundamentals of dimensionality reduction<\/li>\n<\/ul>\n\n\n\n<p>This keeps students from using inputs that are too loud or unnecessary, which makes models less clear.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Feature_Engineering_Notes_vs_Real-Life_Skills\"><\/span><strong>Feature Engineering Notes vs. Real-Life Skills<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A lot of students look for feature engineering notes in the hopes of learning the subject. Notes are helpful, but they don\u2019t take the place of practice.<\/p>\n\n\n\n<p><strong>You can learn feature engineering by:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Trying things out<\/li>\n\n\n\n<li>Results of the test<\/li>\n\n\n\n<li>Failing quickly<\/li>\n\n\n\n<li>Repeating<\/li>\n<\/ul>\n\n\n\n<p>That\u2019s why it\u2019s important to learn through projects.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Data_Science_Programs_Rate_Feature_Engineering\"><\/span><strong>How Data Science Programs Rate Feature Engineering<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Good curricula evaluate feature engineering by:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Studies of cases<\/li>\n\n\n\n<li>Real data sets<\/li>\n\n\n\n<li>Projects from start to finish<\/li>\n<\/ul>\n\n\n\n<p>You don\u2019t just get points for being right. You are judged on how carefully you made the features.<\/p>\n\n\n\n<p>This is very similar to what the industry expects.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Careers_in_Feature_Engineering_and_Modern_Data_Science\"><\/span><strong>Careers in Feature Engineering and Modern Data Science<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>In the real world, feature engineering often:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Takes longer than modeling<\/li>\n\n\n\n<li>Decides if a project is a success<\/li>\n\n\n\n<li>Distinguishes between junior and senior professionals<\/li>\n<\/ul>\n\n\n\n<p>Many students improve their learning by taking courses like <strong><a href=\"https:\/\/gtracademy.org\/data-science-ai-course-online-with-ml-dl-nlp\/\">Data Science AI Online Course<\/a><\/strong>, ai online Course training, or ml ai data science online Training, where they learn feature engineering in real-world situations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Right_Way_to_Learn_Feature_Engineering\"><\/span><strong>The Right Way to Learn Feature Engineering<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Based on what I\u2019ve seen, structured learning makes a huge difference. <strong><a href=\"https:\/\/blog.gtracademy.org\/\">GTR Academy<\/a><\/strong> is one of the best places to learn feature engineering in data science because of this.<\/p>\n\n\n\n<p><strong>Their method is based on:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Datasets from the real world<\/li>\n\n\n\n<li>Making useful features<\/li>\n\n\n\n<li>Making decisions based on models<\/li>\n<\/ul>\n\n\n\n<p>This kind of hands-on focus is very helpful for people who are taking an online course in ai ml dl data science, ai ml dl data science, or online training dl in data science.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Feature_Engineering_Is_More_of_an_Art_Than_a_Science\"><\/span><strong>Feature Engineering Is More of an Art Than a Science<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>One of the most common mistakes is to think that feature engineering follows strict rules. No, it doesn\u2019t.<\/p>\n\n\n\n<p><strong>It takes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wanting to know<\/li>\n\n\n\n<li>Knowledge of the domain<\/li>\n\n\n\n<li>Testing things out<\/li>\n<\/ul>\n\n\n\n<p>That\u2019s why many experienced data scientists say that feature engineering is both an art and a science.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_Common_Questions_FAQ\"><\/span><strong>10 Common Questions (FAQ)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Do_you_have_to_do_feature_engineering_in_data_science\"><\/span><strong>1. Do you have to do feature engineering in data science?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Yes. It is needed for every project in the real world.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Is_it_possible_for_automated_tools_to_take_the_place_of_feature_engineering\"><\/span><strong>2. Is it possible for automated tools to take the place of feature engineering?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>They help, but it\u2019s still important to have human input.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Do_models_that_use_deep_learning_need_feature_engineering\"><\/span><strong>3. Do models that use deep learning need feature engineering?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Not as important as traditional models, but still important.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Is_feature_engineering_a_part_of_data_preprocessing\"><\/span><strong>4. Is feature engineering a part of data preprocessing?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Yes, but it\u2019s more than just cleaning.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_How_long_does_it_take_to_learn_how_to_make_features\"><\/span><strong>5. How long does it take to learn how to make features?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>It takes weeks to learn the basics, but it takes experience to master them.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Do_you_need_to_know_how_to_code_to_do_feature_engineering\"><\/span><strong>6. Do you need to know how to code to do feature engineering?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Yes. Putting it into practice is very important.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Do_all_models_have_the_same_features\"><\/span><strong>7. Do all models have the same features?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>No, different models react in different ways.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_Can_feature_engineering_make_the_model_much_more_accurate\"><\/span><strong>8. Can feature engineering make the model much more accurate?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Yes, and sometimes even more than changing algorithms.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_Do_interviews_test_feature_engineering\"><\/span><strong>9. Do interviews test feature engineering?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A lot of the time, especially for jobs in the middle.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_Can_people_who_are_just_starting_out_learn_feature_engineering_early\"><\/span><strong>10. Can people who are just starting out learn feature engineering early?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Yes, they should.<\/p>\n\n\n\n<p>Connect With Us:\u00a0<a href=\"https:\/\/api.whatsapp.com\/send\/?phone=919650518049&amp;text=Hi%2C%20I%20want%20to%20know%20more%20about%20GTR%20academy%20courses\" target=\"_blank\" rel=\"noreferrer noopener\">WhatsApp<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Final_Thoughts\"><\/span><strong>Final Thoughts<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Feature Engineering in<strong> <a href=\"https:\/\/gtracademy.org\/data-science-ai-course-online-with-ml-dl-nlp\/\">AI Online Course Training<\/a><\/strong> is more than just another module; it\u2019s the skill that quietly determines whether your model works or not.<\/p>\n\n\n\n<p>Even if you have the best algorithm in the world, you won\u2019t get good results if you don\u2019t have good features. Strong features, on the other hand, can make even the simplest models stand out.<\/p>\n\n\n\n<p>Feature engineering can go from being a confusing subject to a powerful tool if you have the right attitude, practice regularly, and learn in a structured way, especially at places like <strong><a href=\"https:\/\/gtracademy.org\/\">GTR Academy<\/a><\/strong>.<\/p>\n\n\n\n<p>In the long run, data science pays off for people who really understand their data. And that\u2019s where that understanding really starts.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A lot of the time, students think that choosing the \u201cbest\u201d algorithm is the key to success when they first start learning data science. I used to think that too. I spent weeks making small changes to models, changing parameters, and trying more advanced methods, but I didn\u2019t see much of a difference. Then someone [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1067,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54],"tags":[443,442,444],"class_list":{"0":"post-1066","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-data-science","8":"tag-data-science-curriculum","9":"tag-feature-engineering-in-data-science","10":"tag-feature-engineering-in-ml"},"_links":{"self":[{"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/posts\/1066","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/comments?post=1066"}],"version-history":[{"count":1,"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/posts\/1066\/revisions"}],"predecessor-version":[{"id":1069,"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/posts\/1066\/revisions\/1069"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/media\/1067"}],"wp:attachment":[{"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/media?parent=1066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/categories?post=1066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gtracademy.org\/blog\/wp-json\/wp\/v2\/tags?post=1066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}