{"id":12410,"date":"2020-02-19T13:50:50","date_gmt":"2020-02-19T08:20:50","guid":{"rendered":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/"},"modified":"2025-03-26T11:40:58","modified_gmt":"2025-03-26T06:10:58","slug":"overfitting-and-underfitting-in-machine-learning","status":"publish","type":"post","link":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/","title":{"rendered":"Overfitting and Underfitting in Machine Learning"},"content":{"rendered":"\n<p><strong>Are Your Machine Learning Models Really Smart?<\/strong> \ud83e\udd14<\/p>\n\n\n\n<p>Ever trained a model that performs amazingly on training data but fails miserably on new data? That\u2019s where <strong>Overfitting<\/strong> and <strong>Underfitting<\/strong> come in! These two problems can make or break your <a href=\"https:\/\/www.mygreatlearning.com\/blog\/machine-learning-models\/\">machine learning model<\/a>\u2019s ability to generalize.<\/p>\n\n\n\n<p>In this article, we\u2019ll break down these concepts, understand why they happen, and explore effective techniques to fix them. Let\u2019s dive in!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"understanding-model-performance-overfitting-vs-underfitting\"><strong>Understanding Model Performance: Overfitting vs. Underfitting<\/strong><\/h2>\n\n\n\n<p>Whenever we train a machine learning model, we aim to create a system that can accurately predict outcomes for new, unseen data. To evaluate a model\u2019s performance, we typically split our dataset into:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Training Set:<\/strong> Used to train the model.<\/li>\n\n\n\n<li><strong>Testing Set:<\/strong> Used to evaluate how well the model generalizes.<\/li>\n<\/ul>\n\n\n\n<p>Sometimes, despite following a structured training process, our model fails to make accurate predictions. This happens due to either <strong>underfitting<\/strong> or <strong>overfitting<\/strong> of the data. Let\u2019s analyze these two scenarios in detail.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-underfitting\"><strong>What is Underfitting?<\/strong><\/h2>\n\n\n<figure class=\"wp-block-image aligncenter size-full zoomable\" data-full=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/underfitting.png\"><img decoding=\"async\" width=\"900\" height=\"594\" src=\"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/underfitting.png\" alt=\"What is Underfitting?\" class=\"wp-image-106344\" srcset=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/underfitting.png 900w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/underfitting-300x198.png 300w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/underfitting-768x507.png 768w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/underfitting-150x99.png 150w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<p>Underfitting occurs when a model is too simple to capture the underlying patterns in the training data. In other words, the model has <strong>high bias<\/strong> and fails to learn the relationships between input features and output labels effectively.<\/p>\n\n\n\n<p><strong>Characteristics of Underfitting:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The model performs poorly on both training and test datasets.<\/li>\n\n\n\n<li>It fails to capture the complexity of the dataset.<\/li>\n\n\n\n<li>Adding more training data does not improve performance significantly.<\/li>\n\n\n\n<li>It occurs when models are too simple (e.g., using linear regression for a non-linear dataset).<\/li>\n<\/ul>\n\n\n<figure class=\"wp-block-image aligncenter size-large zoomable\" data-full=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/Characteristics-o-undrefitting.webp\"><img decoding=\"async\" width=\"1024\" height=\"641\" src=\"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/Characteristics-o-undrefitting-1024x641.webp\" alt=\"Characteristics of Underfitting\" class=\"wp-image-106345\" srcset=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/Characteristics-o-undrefitting-1024x641.webp 1024w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/Characteristics-o-undrefitting-300x188.webp 300w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/Characteristics-o-undrefitting-768x481.webp 768w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/Characteristics-o-undrefitting-1536x962.webp 1536w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/Characteristics-o-undrefitting-150x94.webp 150w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/Characteristics-o-undrefitting.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>Example of Underfitting:<\/strong><\/p>\n\n\n\n<p>Consider a dataset where you want to predict house prices based on square footage. If you apply a simple linear regression model to this data when the relationship is actually quadratic or exponential, the model will struggle to provide accurate predictions. The result is <strong>underfitting<\/strong>, where the model is too simple to grasp the underlying trend.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-overfitting\"><strong>What is Overfitting?<\/strong><\/h2>\n\n\n\n<p>Overfitting occurs when a model learns the training data <strong>too well<\/strong>, including its noise and irrelevant details. Instead of generalizing patterns, the model memorizes the data, leading to poor performance on unseen test data. This happens due to <strong>high variance<\/strong> in the model.<\/p>\n\n\n<figure class=\"wp-block-image aligncenter size-full zoomable\" data-full=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting.png\"><img decoding=\"async\" width=\"900\" height=\"594\" src=\"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting.png\" alt=\"What is Overfitting?\n\" class=\"wp-image-106346\" srcset=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting.png 900w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-300x198.png 300w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-768x507.png 768w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-150x99.png 150w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<p><strong>Characteristics of Overfitting:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The model performs exceptionally well on training data but poorly on test data.<\/li>\n\n\n\n<li>It captures noise and anomalies instead of general patterns.<\/li>\n\n\n\n<li>The model has too many parameters and is overly complex.<\/li>\n\n\n\n<li>It fails to generalize well to new datasets.<\/li>\n<\/ul>\n\n\n<figure class=\"wp-block-image aligncenter size-large zoomable\" data-full=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/characteristics-of-overfitting.webp\"><img decoding=\"async\" width=\"1024\" height=\"627\" src=\"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/characteristics-of-overfitting-1024x627.webp\" alt=\"Characteristics of Overfitting\" class=\"wp-image-106347\" srcset=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/characteristics-of-overfitting-1024x627.webp 1024w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/characteristics-of-overfitting-300x184.webp 300w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/characteristics-of-overfitting-768x470.webp 768w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/characteristics-of-overfitting-1536x941.webp 1536w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/characteristics-of-overfitting-150x92.webp 150w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/characteristics-of-overfitting.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>Example of Overfitting:<\/strong><\/p>\n\n\n\n<p>Imagine training a deep neural network on a dataset of handwritten digits. If the model is excessively complex, it might memorize the exact pixel patterns of each image instead of learning general features like stroke patterns and curves. As a result, when tested on new handwritten digits, it may struggle to recognize them correctly.<\/p>\n\n\n\n<p class=\"block-course-highlighter\"><strong>Also Read:<\/strong> <a href=\"https:\/\/www.mygreatlearning.com\/blog\/types-of-neural-networks\/\">What is a Neural Network?<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"the-bias-variance-tradeoff\"><strong>The Bias-Variance Tradeoff<\/strong><\/h2>\n\n\n\n<p>The <strong>bias-variance tradeoff<\/strong> explains why underfitting and overfitting occur. It represents the relationship between a model\u2019s complexity and its ability to generalize well.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>High Bias (Underfitting):<\/strong> The model makes strong assumptions about the data and fails to capture patterns.<\/li>\n\n\n\n<li><strong>High Variance (Overfitting):<\/strong> The model is too sensitive to small fluctuations in the data, leading to poor generalization.<\/li>\n<\/ul>\n\n\n\n<p>A well-balanced model should achieve an optimal balance between bias and variance, ensuring it captures the necessary patterns without memorizing noise.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-identify-overfitting-and-underfitting\"><strong>How to Identify Overfitting and Underfitting<\/strong><\/h2>\n\n\n\n<p>The best way to detect whether a model is underfitting or overfitting is by evaluating its performance on <strong>training and test datasets<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Underfitting:<\/strong> Low accuracy on both training and test sets.<\/li>\n\n\n\n<li><strong>Overfitting:<\/strong> High accuracy on the training set but significantly lower accuracy on the test set.<\/li>\n<\/ul>\n\n\n<figure class=\"wp-block-image aligncenter size-large zoomable\" data-full=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/identify-model-fitting-issues.webp\"><img decoding=\"async\" width=\"1021\" height=\"1024\" src=\"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/identify-model-fitting-issues-1021x1024.webp\" alt=\"How to Identify Overfitting and Underfitting\" class=\"wp-image-106348\" srcset=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/identify-model-fitting-issues-1021x1024.webp 1021w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/identify-model-fitting-issues-300x300.webp 300w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/identify-model-fitting-issues-150x150.webp 150w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/identify-model-fitting-issues-768x770.webp 768w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/identify-model-fitting-issues-1532x1536.webp 1532w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/identify-model-fitting-issues-96x96.webp 96w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/identify-model-fitting-issues.webp 1596w\" sizes=\"(max-width: 1021px) 100vw, 1021px\" \/><\/figure>\n\n\n\n<p><strong>Graphical Representation<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Underfitting (High Bias):<\/strong> The model\u2019s prediction line does not cover all data points.<\/li>\n\n\n\n<li><strong>Overfitting (High Variance):<\/strong> The model\u2019s prediction line fits the training data perfectly, including noise and outliers.<\/li>\n\n\n\n<li><strong>Good Fit:<\/strong> The model\u2019s prediction line captures the trend while avoiding excessive complexity.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"techniques-to-overcome-underfitting-and-overfitting\"><strong>Techniques to Overcome Underfitting and Overfitting<\/strong><\/h2>\n\n\n\n<p>Now that we understand the causes of underfitting and overfitting, let\u2019s explore techniques to mitigate them.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-to-overcome-underfitting\"><strong>How to Overcome Underfitting<\/strong><\/h3>\n\n\n<figure class=\"wp-block-image aligncenter size-large zoomable\" data-full=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-underfitting.webp\"><img decoding=\"async\" width=\"1024\" height=\"707\" src=\"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-underfitting-1024x707.webp\" alt=\"How to fix underfitting\" class=\"wp-image-106349\" srcset=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-underfitting-1024x707.webp 1024w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-underfitting-300x207.webp 300w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-underfitting-768x530.webp 768w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-underfitting-1536x1061.webp 1536w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-underfitting-150x104.webp 150w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-underfitting.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Increase Model Complexity<\/strong> \u2013 Use more complex models, such as polynomial regression instead of simple <a href=\"https:\/\/www.mygreatlearning.com\/blog\/linear-regression-in-machine-learning\/\">linear regression<\/a>.<\/li>\n\n\n\n<li><strong>Add More Features<\/strong> \u2013 Include additional relevant input features to improve learning.<\/li>\n\n\n\n<li><strong>Reduce Regularization<\/strong> \u2013 If regularization is too strong (e.g., high L1\/L2 penalties), it may overly simplify the model.<\/li>\n\n\n\n<li><strong>Train for a Longer Time<\/strong> \u2013 Some models require more training epochs to learn patterns effectively.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-to-overcome-overfitting\"><strong>How to Overcome Overfitting<\/strong><\/h3>\n\n\n<figure class=\"wp-block-image aligncenter size-large zoomable\" data-full=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-overfitting.webp\"><img decoding=\"async\" width=\"1024\" height=\"961\" src=\"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-overfitting-1024x961.webp\" alt=\"How to fix overfitting\" class=\"wp-image-106350\" srcset=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-overfitting-1024x961.webp 1024w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-overfitting-300x281.webp 300w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-overfitting-768x720.webp 768w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-overfitting-1536x1441.webp 1536w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-overfitting-150x141.webp 150w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/how-to-fix-overfitting.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Regularization Techniques:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>L1 Regularization (<\/strong><a href=\"https:\/\/www.mygreatlearning.com\/blog\/understanding-of-lasso-regression\/\"><strong>Lasso Regression<\/strong><\/a><strong>):<\/strong> Helps reduce complexity by setting some feature weights to zero.<\/li>\n\n\n\n<li><strong>L2 Regularization (<\/strong><a href=\"https:\/\/www.mygreatlearning.com\/blog\/what-is-ridge-regression\/\"><strong>Ridge Regression<\/strong><\/a><strong>):<\/strong> Shrinks feature weights without setting them to zero.<\/li>\n\n\n\n<li><strong>Elastic Net:<\/strong> A combination of L1 and L2 regularization.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Cross-Validation:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Use <strong>k-fold cross-validation<\/strong> to ensure that the model generalizes well across different data subsets.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Pruning Decision Trees:<\/strong>\n<ul class=\"wp-block-list\">\n<li>In <a href=\"https:\/\/www.mygreatlearning.com\/blog\/decision-tree-algorithm\/\">decision trees<\/a>, reduce the depth to prevent over-complexity.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Dropout in <\/strong><a href=\"https:\/\/www.mygreatlearning.com\/blog\/types-of-neural-networks\/\"><strong>Neural Networks<\/strong><\/a><strong>:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Randomly drop some neurons during training to prevent over-reliance on specific patterns.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Increase Training Data:<\/strong>\n<ul class=\"wp-block-list\">\n<li>More data helps the model generalize better and avoid learning noise.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Early Stopping:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Stop training when validation loss starts increasing to prevent memorization.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"block-course-highlighter\">Learn how<a href=\"https:\/\/www.mygreatlearning.com\/blog\/alpha-beta-pruning-in-ai\/\"> <strong>Alpha-Beta Pruning in AI<\/strong><\/a> optimizes decision-making in game theory by reducing the number of nodes evaluated in the minimax algorithm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"real-world-applications\"><strong>Real-World Applications<\/strong><\/h2>\n\n\n\n<p>Overfitting and underfitting are crucial concerns across various domains:<\/p>\n\n\n<figure class=\"wp-block-image aligncenter size-large zoomable\" data-full=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-underfitting-applications.webp\"><img decoding=\"async\" width=\"1024\" height=\"405\" src=\"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-underfitting-applications-1024x405.webp\" alt=\"Model Training Applications\" class=\"wp-image-106351\" srcset=\"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-underfitting-applications-1024x405.webp 1024w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-underfitting-applications-300x119.webp 300w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-underfitting-applications-768x304.webp 768w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-underfitting-applications-1536x608.webp 1536w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-underfitting-applications-150x59.webp 150w, https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-underfitting-applications.webp 1584w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Healthcare:<\/strong> Predicting diseases based on medical data requires generalizable models.<\/li>\n\n\n\n<li><strong>Finance:<\/strong> Stock market predictions should avoid memorizing past fluctuations.<\/li>\n\n\n\n<li><strong>Autonomous Vehicles:<\/strong> Object detection systems must generalize across diverse environments.<\/li>\n\n\n\n<li><a href=\"https:\/\/www.mygreatlearning.com\/blog\/natural-language-processing-tutorial\/\"><strong>Natural Language Processing<\/strong><\/a><strong>:<\/strong> Sentiment analysis models should not memorize specific training phrases.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>Achieving a balance between underfitting and overfitting is key to building robust machine learning models. While <strong>underfitting<\/strong> leads to poor learning due to excessive simplification, <strong>overfitting<\/strong> results in poor generalization due to unnecessary complexity.<\/p>\n\n\n\n<p>By understanding the <strong>bias-variance tradeoff<\/strong> and applying techniques like <strong>regularization, cross-validation, dropout, and pruning<\/strong>, we can develop models that perform well on both training and unseen test data.<\/p>\n\n\n\n<p>Machine learning practitioners must always strive to optimize their models to achieve a good fit, ensuring high accuracy and reliability in real-world applications.<\/p>\n\n\n\n<p class=\"block-course-highlighter\">Advance your career with the<a href=\"https:\/\/www.mygreatlearning.com\/pg-program-artificial-intelligence-course\"> <strong>PG Program in Artificial Intelligence<\/strong><\/a>. Gain expertise in AI, Machine Learning, Neural Networks, and Deep Learning through industry-relevant projects and expert mentorship.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"frequently-asked-questions\"><strong>Frequently Asked Questions<\/strong><\/h2>\n\n\n\n<p><strong>How does feature selection help in preventing overfitting?<br><\/strong>Feature selection removes irrelevant or redundant features, reducing noise and improving model generalization, thus preventing overfitting.<\/p>\n\n\n\n<p><strong>Can ensemble methods help reduce overfitting and underfitting?<br><\/strong>Yes, ensemble methods like bagging (reduces variance) and boosting (reduces bias) improve model performance by combining multiple models.<\/p>\n\n\n\n<p><strong>Also Read:<\/strong> <a href=\"https:\/\/www.mygreatlearning.com\/blog\/bagging-boosting\/\">Bagging and Boosting<\/a><\/p>\n\n\n\n<p><strong>Why do deep learning models overfit easily?<br><\/strong>Deep learning models have many parameters, making them prone to memorizing training data instead of learning general patterns. Regularization and dropout help mitigate this.<\/p>\n\n\n\n<p><strong>What role does batch size play in overfitting and underfitting?<br><\/strong>Small batch sizes introduce noise, improving generalization, while large batches may lead to overfitting by memorizing patterns too well.<\/p>\n\n\n\n<p><strong>How can transfer learning help with overfitting and underfitting?<\/strong><strong><br><\/strong>Transfer learning applies pre-trained models to new tasks, reducing overfitting by leveraging learned features and preventing underfitting with better feature extraction.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"our-machine-learning-courses\">Our Machine Learning Courses<\/h2>\n\n\n\n<p>Explore our Machine Learning and AI courses, designed for comprehensive learning and skill development.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Program Name<\/strong><\/th><th><strong>Duration<\/strong><\/th><\/tr><tr><th><a href=\"https:\/\/professionalonline2.mit.edu\/no-code-artificial-intelligence-machine-learning-program\">MIT No code AI and Machine Learning Course<\/a><\/th><th>12 Weeks<\/th><\/tr><tr><th><a href=\"https:\/\/idss-gl.mit.edu\/mit-idss-data-science-machine-learning-online-program\">MIT Data Science and Machine Learning Course<\/a><\/th><th>12 Weeks<\/th><\/tr><tr><th><a href=\"https:\/\/www.mygreatlearning.com\/mit-data-science-and-machine-learning-program\">Data Science and Machine Learning Course<\/a><\/th><th>12 Weeks<\/th><\/tr><\/thead><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Overfitting and underfitting are common challenges in machine learning. This article explains their causes, characteristics, and the bias-variance tradeoff. It also offers practical solutions such as regularization, cross-validation, and increasing training data to optimize model performance and improve generalization.<\/p>\n","protected":false},"author":41,"featured_media":106343,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2],"tags":[36799],"content_type":[],"class_list":["post-12410","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-artificial-intelligence","tag-machine-learning"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Overfitting and Underfitting in Machine Learning Algorithm<\/title>\n<meta name=\"description\" content=\"Learn the causes of overfitting and underfitting in machine learning, their impact on model performance, and effective techniques to fix them.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Overfitting and Underfitting in Machine Learning\" \/>\n<meta property=\"og:description\" content=\"Learn the causes of overfitting and underfitting in machine learning, their impact on model performance, and effective techniques to fix them.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/\" \/>\n<meta property=\"og:site_name\" content=\"Great Learning Blog: Free Resources what Matters to shape your Career!\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/GreatLearningOfficial\/\" \/>\n<meta property=\"article:published_time\" content=\"2020-02-19T08:20:50+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-26T06:10:58+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"847\" \/>\n\t<meta property=\"og:image:height\" content=\"396\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Great Learning Editorial Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/Great_Learning\" \/>\n<meta name=\"twitter:site\" content=\"@Great_Learning\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Great Learning Editorial Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/\"},\"author\":{\"name\":\"Great Learning Editorial Team\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/#\\\/schema\\\/person\\\/6f993d1be4c584a335951e836f2656ad\"},\"headline\":\"Overfitting and Underfitting in Machine Learning\",\"datePublished\":\"2020-02-19T08:20:50+00:00\",\"dateModified\":\"2025-03-26T06:10:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/\"},\"wordCount\":1225,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/02\\\/overfitting-and-underfitting.webp\",\"keywords\":[\"Machine Learning\"],\"articleSection\":[\"AI and Machine Learning\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/\",\"url\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/\",\"name\":\"Overfitting and Underfitting in Machine Learning Algorithm\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/02\\\/overfitting-and-underfitting.webp\",\"datePublished\":\"2020-02-19T08:20:50+00:00\",\"dateModified\":\"2025-03-26T06:10:58+00:00\",\"description\":\"Learn the causes of overfitting and underfitting in machine learning, their impact on model performance, and effective techniques to fix them.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/02\\\/overfitting-and-underfitting.webp\",\"contentUrl\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/02\\\/overfitting-and-underfitting.webp\",\"width\":847,\"height\":396,\"caption\":\"Overfitting and Underfitting\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/overfitting-and-underfitting-in-machine-learning\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Blog\",\"item\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"AI and Machine Learning\",\"item\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/artificial-intelligence\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Overfitting and Underfitting in Machine Learning\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/\",\"name\":\"Great Learning Blog\",\"description\":\"Learn, Upskill &amp; Career Development Guide and Resources\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/#organization\"},\"alternateName\":\"Great Learning\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/#organization\",\"name\":\"Great Learning\",\"url\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/06\\\/GL-Logo.jpg\",\"contentUrl\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/06\\\/GL-Logo.jpg\",\"width\":900,\"height\":900,\"caption\":\"Great Learning\"},\"image\":{\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/GreatLearningOfficial\\\/\",\"https:\\\/\\\/x.com\\\/Great_Learning\",\"https:\\\/\\\/www.instagram.com\\\/greatlearningofficial\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/school\\\/great-learning\\\/\",\"https:\\\/\\\/in.pinterest.com\\\/greatlearning12\\\/\",\"https:\\\/\\\/www.youtube.com\\\/user\\\/beaconelearning\\\/\"],\"description\":\"Great Learning is a leading global ed-tech company for professional training and higher education. It offers comprehensive, industry-relevant, hands-on learning programs across various business, technology, and interdisciplinary domains driving the digital economy. These programs are developed and offered in collaboration with the world's foremost academic institutions.\",\"email\":\"info@mygreatlearning.com\",\"legalName\":\"Great Learning Education Services Pvt. Ltd\",\"foundingDate\":\"2013-11-29\",\"numberOfEmployees\":{\"@type\":\"QuantitativeValue\",\"minValue\":\"1001\",\"maxValue\":\"5000\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/#\\\/schema\\\/person\\\/6f993d1be4c584a335951e836f2656ad\",\"name\":\"Great Learning Editorial Team\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/unnamed.webp\",\"url\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/unnamed.webp\",\"contentUrl\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/unnamed.webp\",\"caption\":\"Great Learning Editorial Team\"},\"description\":\"The Great Learning Editorial Staff includes a dynamic team of subject matter experts, instructors, and education professionals who combine their deep industry knowledge with innovative teaching methods. Their mission is to provide learners with the skills and insights needed to excel in their careers, whether through upskilling, reskilling, or transitioning into new fields.\",\"sameAs\":[\"https:\\\/\\\/www.mygreatlearning.com\\\/\",\"https:\\\/\\\/in.linkedin.com\\\/school\\\/great-learning\\\/\",\"https:\\\/\\\/x.com\\\/https:\\\/\\\/twitter.com\\\/Great_Learning\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCObs0kLIrDjX2LLSybqNaEA\"],\"award\":[\"Best EdTech Company of the Year 2024\",\"Education Economictimes Outstanding Education\\\/Edtech Solution Provider of the Year 2024\",\"Leading E-learning Platform 2024\"],\"url\":\"https:\\\/\\\/www.mygreatlearning.com\\\/blog\\\/author\\\/greatlearning\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Overfitting and Underfitting in Machine Learning Algorithm","description":"Learn the causes of overfitting and underfitting in machine learning, their impact on model performance, and effective techniques to fix them.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/","og_locale":"en_US","og_type":"article","og_title":"Overfitting and Underfitting in Machine Learning","og_description":"Learn the causes of overfitting and underfitting in machine learning, their impact on model performance, and effective techniques to fix them.","og_url":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/","og_site_name":"Great Learning Blog: Free Resources what Matters to shape your Career!","article_publisher":"https:\/\/www.facebook.com\/GreatLearningOfficial\/","article_published_time":"2020-02-19T08:20:50+00:00","article_modified_time":"2025-03-26T06:10:58+00:00","og_image":[{"width":847,"height":396,"url":"http:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp","type":"image\/webp"}],"author":"Great Learning Editorial Team","twitter_card":"summary_large_image","twitter_creator":"@https:\/\/twitter.com\/Great_Learning","twitter_site":"@Great_Learning","twitter_misc":{"Written by":"Great Learning Editorial Team","Est. reading time":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/#article","isPartOf":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/"},"author":{"name":"Great Learning Editorial Team","@id":"https:\/\/www.mygreatlearning.com\/blog\/#\/schema\/person\/6f993d1be4c584a335951e836f2656ad"},"headline":"Overfitting and Underfitting in Machine Learning","datePublished":"2020-02-19T08:20:50+00:00","dateModified":"2025-03-26T06:10:58+00:00","mainEntityOfPage":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/"},"wordCount":1225,"commentCount":0,"publisher":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/#primaryimage"},"thumbnailUrl":"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp","keywords":["Machine Learning"],"articleSection":["AI and Machine Learning"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/","url":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/","name":"Overfitting and Underfitting in Machine Learning Algorithm","isPartOf":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/#primaryimage"},"image":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/#primaryimage"},"thumbnailUrl":"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp","datePublished":"2020-02-19T08:20:50+00:00","dateModified":"2025-03-26T06:10:58+00:00","description":"Learn the causes of overfitting and underfitting in machine learning, their impact on model performance, and effective techniques to fix them.","breadcrumb":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/#primaryimage","url":"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp","contentUrl":"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp","width":847,"height":396,"caption":"Overfitting and Underfitting"},{"@type":"BreadcrumbList","@id":"https:\/\/www.mygreatlearning.com\/blog\/overfitting-and-underfitting-in-machine-learning\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Blog","item":"https:\/\/www.mygreatlearning.com\/blog\/"},{"@type":"ListItem","position":2,"name":"AI and Machine Learning","item":"https:\/\/www.mygreatlearning.com\/blog\/artificial-intelligence\/"},{"@type":"ListItem","position":3,"name":"Overfitting and Underfitting in Machine Learning"}]},{"@type":"WebSite","@id":"https:\/\/www.mygreatlearning.com\/blog\/#website","url":"https:\/\/www.mygreatlearning.com\/blog\/","name":"Great Learning Blog","description":"Learn, Upskill &amp; Career Development Guide and Resources","publisher":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/#organization"},"alternateName":"Great Learning","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.mygreatlearning.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.mygreatlearning.com\/blog\/#organization","name":"Great Learning","url":"https:\/\/www.mygreatlearning.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.mygreatlearning.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2022\/06\/GL-Logo.jpg","contentUrl":"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2022\/06\/GL-Logo.jpg","width":900,"height":900,"caption":"Great Learning"},"image":{"@id":"https:\/\/www.mygreatlearning.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/GreatLearningOfficial\/","https:\/\/x.com\/Great_Learning","https:\/\/www.instagram.com\/greatlearningofficial\/","https:\/\/www.linkedin.com\/school\/great-learning\/","https:\/\/in.pinterest.com\/greatlearning12\/","https:\/\/www.youtube.com\/user\/beaconelearning\/"],"description":"Great Learning is a leading global ed-tech company for professional training and higher education. It offers comprehensive, industry-relevant, hands-on learning programs across various business, technology, and interdisciplinary domains driving the digital economy. These programs are developed and offered in collaboration with the world's foremost academic institutions.","email":"info@mygreatlearning.com","legalName":"Great Learning Education Services Pvt. Ltd","foundingDate":"2013-11-29","numberOfEmployees":{"@type":"QuantitativeValue","minValue":"1001","maxValue":"5000"}},{"@type":"Person","@id":"https:\/\/www.mygreatlearning.com\/blog\/#\/schema\/person\/6f993d1be4c584a335951e836f2656ad","name":"Great Learning Editorial Team","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2022\/02\/unnamed.webp","url":"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2022\/02\/unnamed.webp","contentUrl":"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2022\/02\/unnamed.webp","caption":"Great Learning Editorial Team"},"description":"The Great Learning Editorial Staff includes a dynamic team of subject matter experts, instructors, and education professionals who combine their deep industry knowledge with innovative teaching methods. Their mission is to provide learners with the skills and insights needed to excel in their careers, whether through upskilling, reskilling, or transitioning into new fields.","sameAs":["https:\/\/www.mygreatlearning.com\/","https:\/\/in.linkedin.com\/school\/great-learning\/","https:\/\/x.com\/https:\/\/twitter.com\/Great_Learning","https:\/\/www.youtube.com\/channel\/UCObs0kLIrDjX2LLSybqNaEA"],"award":["Best EdTech Company of the Year 2024","Education Economictimes Outstanding Education\/Edtech Solution Provider of the Year 2024","Leading E-learning Platform 2024"],"url":"https:\/\/www.mygreatlearning.com\/blog\/author\/greatlearning\/"}]}},"uagb_featured_image_src":{"full":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp",847,396,false],"thumbnail":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting-150x150.webp",150,150,true],"medium":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting-300x140.webp",300,140,true],"medium_large":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting-768x359.webp",768,359,true],"large":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp",847,396,false],"1536x1536":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp",847,396,false],"2048x2048":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting.webp",847,396,false],"web-stories-poster-portrait":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting-640x396.webp",640,396,true],"web-stories-publisher-logo":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting-96x96.webp",96,96,true],"web-stories-thumbnail":["https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2020\/02\/overfitting-and-underfitting-150x70.webp",150,70,true]},"uagb_author_info":{"display_name":"Great Learning Editorial Team","author_link":"https:\/\/www.mygreatlearning.com\/blog\/author\/greatlearning\/"},"uagb_comment_info":0,"uagb_excerpt":"Overfitting and underfitting are common challenges in machine learning. This article explains their causes, characteristics, and the bias-variance tradeoff. It also offers practical solutions such as regularization, cross-validation, and increasing training data to optimize model performance and improve generalization.","_links":{"self":[{"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/posts\/12410","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/users\/41"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/comments?post=12410"}],"version-history":[{"count":9,"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/posts\/12410\/revisions"}],"predecessor-version":[{"id":107003,"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/posts\/12410\/revisions\/107003"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/media\/106343"}],"wp:attachment":[{"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/media?parent=12410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/categories?post=12410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/tags?post=12410"},{"taxonomy":"content_type","embeddable":true,"href":"https:\/\/www.mygreatlearning.com\/blog\/wp-json\/wp\/v2\/content_type?post=12410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}