r_subheading-Course Description-r_end In this tutorial on r_link-Introduction to Text Analytics with R- https://online.datasciencedojo.com/course/Text-Analytics-with-R-r_end, we will discuss different metrics to evaluate and improve the accuracy of the model. r_break r_break r_subheading-What You'll Learn-r_end • The importance of metrics beyond accuracy for building effective models. r_break • Coverage of sensitivity and specificity and their importance for building effective binary classification models. r_break • The importance of feature engineering for building the most effective models. r_break • How to identify if an engineered feature is likely to be effective in Production. r_break • Improving our model with an engineered feature.