igh-level concepts that can be applied
independently, but it is recommended that you review the material in
<a href="/news/2020/01/15/demo-fraud-detection.html">part one</a> and
<a href="/news/2020/03/24/demo-fraud-detection-2.html">part two</a> of the series as well as checkout the <a href="https://github.com/afedulov/fraud-detection-demo">code
base</a> in order to make
it easier to follow along.</p>
<h2 id="processfunction-as-a-window">
  ProcessFunction as a &ldquo;Window&rdquo;
  <a class="anchor" href=