<h4>Large scale classification</h4>

<p>In case the number of training inputs <tt>x</tt> exceeds a few 
hundreds, approximate inference using
<a href="../inf/infLaplace.m">infLaplace.m</a>, <a href="../inf/infEP.m">infEP.m</a>
and <a href="../inf/infVB.m">infVB.m</a> 
takes too long. As in regression, we offer the FITC approximation based on a low-rank
plus diagonal approximation to the exact covariance to deal with these
cases. The general idea is to use inducing points <tt>u</tt> and to
base the computati