<p>Ah, not again!</p>

<p>Dimitriy, I did some work a few months ago of weeding out the generic <code>gmm</code> tag, and separating it into <code>generalized-moments</code> (<code>generalized-method-of-moments</code> was too long), <code>gaussian-mixture</code> for the classification/machine learning folks, and <code>growth-mixture-model</code> (which is what psychologists and education researchers think when they hear GMM). I think I kept the <code>gmm</code> wiki entry saying that the use of this tag is confusing and discouraged, in favor of these three specific ones, but since no questions were tagged <code>gmm</code> after my overhaul, it disappeared. Your... uhm... help in re-establishing <code>gmm</code> is... uhm... appreciated, but it would be much better if you folded the <code>gmm</code> description into <code>generalized-moments</code>.</p>

<p>Moderators: is there any way to protect a tag even if there are no entries for it?</p>
