org/abs/1903.08560">Surprises in High-Dimensional Ridgeless Least Squares Interpolation</a></p>
<ul>
<li><p>main result of limiting risk, where <span class="math notranslate nohighlight">\(\gamma \in (0, \infty)\)</span>:</p>
<ul>
<li><p><span class="math notranslate nohighlight">\(R(\gamma) = \begin{cases} \sigma^2 \frac{\gamma}{1-\gamma} &amp; \gamma &lt; 1\\||\beta||_2^2(1 - \frac 1 \gamma) + \sigma^2 \frac{1} {\gamma - 1} &amp; \gamma &gt; 1\end{cases}\)</span></p></li>
</ul>
</li>
</ul>
</li>
<li><p><a