WebStanford University Super Machine Learning Cheat Sheets New. 16 pages 2024/2024 None. 2024/2024 None. Save. Cs229-notes 10 - Lecture notes 1; Expectation Maximization; ... CS229 Fall 22 Discussion Section 2 Solutions. 6 pages 2024/2024 None. 2024/2024 None. Save. CS229 Fall 22 Discussion Section 1 Solutions. 7 pages 2024/2024 None. … In a context of a binary classification, here are the main metrics that are important to track in order to assess the performance of the model. Confusion matrixThe confusion matrix is used to have a more complete picture when assessing the performance of a model. It is defined as follows: Main metricsThe following metrics … See more Basic metricsGiven a regression model $f$, the following metrics are commonly used to assess the performance of the model: Coefficient of determinationThe coefficient of determination, often noted $R^2$ or $r^2$, … See more BiasThe bias of a model is the difference between the expected prediction and the correct model that we try to predict for given data points. VarianceThe variance of a model is the variability of the model prediction for given … See more VocabularyWhen selecting a model, we distinguish 3 different parts of the data that we have as follows: Once the model has been chosen, it is trained on the entire dataset and tested on the unseen test set. These are … See more
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WebTest MSE = E ((y −fˆ(x))2= E ((ϵ+f(x)−fˆ(x))2= E(ϵ2)+E(f(x)−fˆ(x))2= σ2 + E(f(x)−fˆ(x)))2 +Var (f(x)−fˆ(x) = σ2 + Bias fˆ(x))2 +Var (fˆ(x) There is nothing we can do about the first termσ2 as we can not predict the noise ϵ by definition. The bias term is due to underfitting, meaning that on average,fˆdoes not predict f. WebA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. http://cs229.stanford.edu/faq.html fnf erect charted