ach feature.</p></li>
<li><p>Calculating the accumulated leaf node values for each bin generated by the unique splits.</p></li>
</ul>
<p>The key feature of XGB1 is that it selects split points adaptively. This allows the model to achieve better predictive performance compared to spline-based GAMs, while still being interpretable. In addition to the above steps, we also perform the following two steps to further improve interpretability and model performance.</p>
<p><strong>Stage 2: Binning Optimization.</st