/p>
<p>It may help to use a smaller step size during warmup, a stronger prior
on each mixture component’s membership responsibility. A more extreme
measure is to include additional mixture components to deal with the
possibility that some of them may collapse.</p>
<p>In general, it is difficult to recover exactly the right <span class="math inline">\(K\)</span>
mixture components in a mixture model as <span class="math inline">\(K\)</span> increases beyond one
(yes, even a two-component mixture can have t