-
Book Overview & Buying
-
Table Of Contents
Deep Learning with C++
By :
In this chapter you learned how to turn messy, heterogeneous data into model-ready tensors. We diagnosed common issues (scale mismatches, missing values, outliers, leakage) and applied principled fixes: forward/backward fill and statistical imputers; categorical encoders from one-hot and frequency to learned embeddings; scaling via min–max, Z-score, and robust transforms; and dimensionality reduction with PCA. For temporal data, you engineered rolling statistics, differences, and spectral features; for tabular data, you built interaction and polynomial terms. We also emphasized augmentation to broaden the effective training distribution without changing labels.
On the engineering side, you practiced implementing these ideas in C++: small, testable utilities for imputation and encoding; Armadillo/Eigen for vectorized transforms; and library-powered versions (e.g., PCA, k-NN imputation, FFT backends) for production speed and numerical stability. You learned to stream large...