{"id":2300,"date":"2025-06-11T09:36:11","date_gmt":"2025-06-11T04:06:11","guid":{"rendered":"https:\/\/texpertssolutions.com\/notes\/?p=2300"},"modified":"2025-06-26T14:55:25","modified_gmt":"2025-06-26T09:25:25","slug":"how-to-find-my-machine-learning-model-is-underfitted","status":"publish","type":"post","link":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/11\/how-to-find-my-machine-learning-model-is-underfitted\/","title":{"rendered":"How to find my Machine Learning model is Underfitted?"},"content":{"rendered":"\n<p> \ud83d\udd0d Detecting <strong><a href=\"https:\/\/qbase.texpertssolutions.com\/index.php\/Underfitting\" target=\"_blank\" rel=\"noopener\" title=\"\">underfitting<\/a><\/strong> is a key step in improving your machine learning model. Let\u2019s break it down clearly and simply. \ud83e\udde0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udca1 <strong>What is Underfitting?<\/strong><\/h3>\n\n\n\n<p><a href=\"https:\/\/qbase.texpertssolutions.com\/index.php\/Underfitting\" title=\"\">Underfitting<\/a> happens when your model is <strong>too simple<\/strong> to capture the patterns in the training data. It&#8217;s like trying to draw a straight line through a curvy path \u2014 it just doesn\u2019t fit well. \ud83e\ude83<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\uddea <strong>How to Know If Your Model Is Underfitting?<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>High Error on Training Data<\/strong> \ud83d\udcc9\n<ul class=\"wp-block-list\">\n<li>If your model performs poorly <strong>even on the training set<\/strong>, it\u2019s a strong sign of underfitting.<\/li>\n\n\n\n<li>Example: You\u2019re getting a low accuracy or high loss on training data.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Validation Error is Also High<\/strong> \ud83d\udcc9\n<ul class=\"wp-block-list\">\n<li>The model performs badly on both training <strong>and<\/strong> validation data.<\/li>\n\n\n\n<li>In contrast, overfitting would look like: good training accuracy but poor validation accuracy.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Learning Curves Stay Flat<\/strong> \ud83d\udcca\n<ul class=\"wp-block-list\">\n<li>If you plot training and validation loss\/accuracy vs. epochs, and the training curve is flat and not improving, it might be underfitting.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Simple Model Architecture<\/strong> \ud83e\uddf1\n<ul class=\"wp-block-list\">\n<li>You&#8217;re using a model that&#8217;s too basic for the complexity of the problem.<\/li>\n\n\n\n<li>E.g., a linear model trying to fit non-linear data.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\udde0 Example:<\/h3>\n\n\n\n<p>Let\u2019s say you have a classification problem.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Training Accuracy: <strong>60%<\/strong><\/li>\n\n\n\n<li>Validation Accuracy: <strong>58%<\/strong><\/li>\n<\/ul>\n\n\n\n<p>That\u2019s a red flag \ud83d\udea9 \u2014 your model isn\u2019t even learning the training data well \u2192 <strong>Underfitting<\/strong>!<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udee0\ufe0f <strong>How to Fix Underfitting?<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u2705 Use a more complex model (e.g., deeper neural network, more trees in a Random Forest)<\/li>\n\n\n\n<li>\u2705 Train longer (more epochs) \u23f3<\/li>\n\n\n\n<li>\u2705 Use better features or more data \ud83d\udd22<\/li>\n\n\n\n<li>\u2705 Reduce <a href=\"https:\/\/qbase.texpertssolutions.com\/index.php\/Regularization\" target=\"_blank\" rel=\"noopener\" title=\"\">regularization<\/a> (like lowering L1\/L2 penalties)<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Would you like an example using code (like in Python with scikit-learn)? Or a visual learning curve? \ud83d\ude0a<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udd0d Detecting underfitting is a key step in improving your machine learning model. Let\u2019s break it &hellip; <a title=\"How to find my Machine Learning model is Underfitted?\" class=\"hm-read-more\" href=\"https:\/\/texpertssolutions.com\/notes\/2025\/06\/11\/how-to-find-my-machine-learning-model-is-underfitted\/\"><span class=\"screen-reader-text\">How to find my Machine Learning model is Underfitted?<\/span>Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":2343,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[641],"tags":[],"class_list":["post-2300","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai-machine-learning"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/texpertssolutions.com\/notes\/wp-content\/uploads\/2025\/06\/16.png?fit=1280%2C720&ssl=1","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2300","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/comments?post=2300"}],"version-history":[{"count":2,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2300\/revisions"}],"predecessor-version":[{"id":2377,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2300\/revisions\/2377"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media\/2343"}],"wp:attachment":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media?parent=2300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/categories?post=2300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/tags?post=2300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}