![]() Choose from various versions of your model using a cross-validation dataset, and evaluate its ability to generalize to real-world data using a test dataset.Discover the value of separating your data set into training, cross-validation, and test sets.Use the advanced “Adam optimizer” to train your model more efficiently.Learn where to use different activation functions (ReLu, linear, sigmoid, softmax) in a neural network, depending on the task you want your model to perform.Build a neural network to perform multi-class classification of handwritten digits in TensorFlow, using categorical cross-entropy loss functions and the softmax activation.Optionally learn how neural network computations are “vectorized” to use parallel processing for faster training and prediction.Gain a deeper understanding by implementing a neural network in Python from scratch.Build a neural network for binary classification of handwritten digits using TensorFlow.Build and use decision trees and tree ensemble methods, including random forests and boosted trees.Apply best practices for machine learning development so that your models generalize to data and tasks in the real world.Build and train a neural network with TensorFlow to perform multi-class classification.In the second course of the Machine Learning Specialization, you will: Implement regularization to improve both regression and classification models.Understand the problem of “overfitting” and improve model performance using regularization.Implement and understand the cost function and gradient descent for logistic regression.Learn why logistic regression is better suited for classification tasks than the linear regression model is.Implement and understand the logistic regression model for classification.Implement and understand methods for improving machine learning models by choosing the learning rate, plotting the learning curve, performing feature engineering, and applying polynomial regression.Implement and understand the cost function and gradient descent for multiple linear regression.Build and train a regression model that takes multiple features as input (multiple linear regression).Implement and understand how gradient descent is used to train a machine learning model.Implement and understand the purpose of a cost function.Learn the difference between supervised and unsupervised learning and regression and classification tasks.Build and train supervised machine learning models for prediction and binary classification tasks, including linear regression and logistic regression.Build machine learning models in Python using popular machine learning libraries NumPy and scikit-learn.In the first course of the Machine Learning Specialization, you will: ![]()
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