typo in NMF learning rate

cs8850_14_factorization.html

@@ -597,7 +597,7 @@ <h2>Multiplicative updates</h2>
                         <li class="fragment roll-in" data-fragment-index="0"> Setting the learning rates:
                           \begin{align}
                           \bm{\eta}_{\bm{H}} &= \frac{\bm{H}}{\bm{W}^T\bm{W}\bm{H}}\\
-                          \bm{\eta}_{\bm{W}} &= \frac{\bm{W}}{\bm{W}^T\bm{H}\bm{H}^T}\\
+                          \bm{\eta}_{\bm{W}} &= \frac{\bm{W}}{\bm{W}\bm{H}\bm{H}^T}\\
                           \end{align}
                         <li class="fragment roll-in" data-fragment-index="1">Results in updates:
                           \begin{align*}