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i class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO®
Documentation</span></a><ul><li class="level-2"><a class="final"
href="/"><span>Welcome to Apache PredictionIO®</span></a></li></ul></li><li
class="level-1"><a class="expandible" href="#"><span>Getting
Started</span></a><ul><li class="level-2"><a class="final"
href="/start/"><span>A Quick Intro</span></a></li><li class="level-2"><a
class="final" href="/install/"><span>Installing Apache
PredictionIO</span></a></li><li class="level-2"><a class="final"
href="/start/download/"><span>Downloading an Engine Template</span></a></li><li
class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your
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Properties</span></a></li><li class="level-3"><a class="final"
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href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events
for Users</span></a></li><li class="level-3"><a class="final"
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Users</span></a></li></ul></li><li class="level-2"><a class="expandible"
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Algorithm</span></a></li><li class="level-3"><a class="final"
href="/templates/classification/reading-custom-properties/"><span>Read Custom
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