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In predictive modeling, unbiased models can have higher variance, & thus be less accurate. Modelers may prefer some bias to maximize accuracy. Use this tag also for questions about the bias-variance decomposition.
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Bias vs. variance
I have a question about bias/variance trade-off for different competing models. Say one has estimated model A and model B and calculated their respective train and test error. How does one yield an in …
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Lasso vs Ridge Regression
My question relates on the Ridge vs Lasso Regression. I know the difference in the cost function (ridge penalizes sum of quadratic coefficients, lasso penalizes sum of absolute value of coefficients). …