GBMs - Copyedits#202
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RaphaelS1
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June 2, 2026 19:27
Signed-off-by: Raphael Sonabend <raphaelsonabend@gmail.com>
# Conflicts: # book/_book/Machine-Learning-in-Survival-Analysis.pdf
- Regenerate the gradient-boosting figure from a rebuilt drawio source: cover palette, rounded/shadowed borderless boxes, three distinct depth-2 trees, shrinking residual clusters, hdots + M-th iteration, Fit/Predict/Aggregate labels; export PNG + SVG (drawio is source of truth). - Add an "Early stopping" section to the ML chapter (P1C3, #sec-ml-early-stopping) with an R/ggplot figure (early_stopping_figure.R) reusing the gradient-descent dataset (train/validation split); link it from the boosting hyperparameters. - Grammar/clarity fixes; "simplified"/notation tidy-ups. - eq-coxboost: fix misplaced transpose (x^T gamma) and correct the I_pen description (penalised information = unpenalised information + lambda P); verified equivalent to Binder & Schumacher (2008). Clarify beta (cumulative coefficients) vs gamma (per-iteration update) and fix vector/component bolding. - Cite Burk2026 for CoxBoost; add Further-reading entries for XGBoost-AFT (Barnwal2022) and BoXHED (Wang2020; existing BoXHED2.0). Add bib entries. - Add FIXME/TODO notes for the copyeditor (g() notation across chapters, AFT f_W/S_W and sigma-hat, "loss" terminology, rendering of _0/prime).
Signed-off-by: Raphael Sonabend <raphaelsonabend@gmail.com>
Signed-off-by: Raphael Sonabend <raphaelsonabend@gmail.com>
Signed-off-by: Raphael Sonabend <raphaelsonabend@gmail.com>
Signed-off-by: Raphael Sonabend <raphaelsonabend@gmail.com>
Signed-off-by: Raphael Sonabend <raphaelsonabend@gmail.com>
Signed-off-by: Raphael Sonabend <raphaelsonabend@gmail.com>
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