http://cwiki.apache.org/MAHOUT/quickstart.html#FootnoteMarker2
Talks about parent/pom.xml. In fact, the version is in mahout-core. Now, it *could* be in maven/pom.xml. And maven/pom.xml *could* be parent/pom.xml, and that would make mahout a bit more conventional. Before I edit the confluence page, anyone want to speak for either of those adjustments?