擅长:python、mysql、java
<p>纵观Kullback-Leibler散度的定义,它似乎是由于它是如何定义的。在</p>
<p>来自维基百科:</p>
<blockquote>
<p>Whenever P(x) is zero the contribution of the corresponding term is interpreted as zero because
<a href="https://i.stack.imgur.com/YTYBb.jpg" rel="nofollow noreferrer">the limit goes to zero</a> (click link for the equation).</p>
</blockquote>