<frame title="What to do?">
        <list>
        <e>Evaluation as anomaly detector is complicated</e>
<l2st>
<e>Requires known anomalies</e>
</l2st>
<e>->So evaluate as density estimator</e>
<l2st>
<e>Does not require anomalies</e>
<e>Allows generating infinite amounts of training data</e>
</l2st>
        </list>
        </frame>