an>
<span class="sd">        - :math:`k` is the budget</span>
<span class="sd">        - :math:`N` is the number of points contributing to the full gradient :math:`\\nabla_\\theta L(\\theta_t)`</span>
<span class="sd">        - :math:`\\nabla_\\theta L(\\theta_t)` is either the complete hypothesized gradient or a validation gradient</span>
<span class="sd">        - :math:`\\sum_{i \\in X_t} \\nabla_\\theta L_T^i (\\theta_t)` is the subset&#39;s hypothesized gradient with :math:`|X_t| = k`</span>

<span cla