Hierarchy For All Packages Package Hierarchies: org.apache.mahout.collections, org.apache.mahout.common, org.apache.mahout.math, org.apache.mahout.math.als, org.apache.mahout.math.buffer, org.apache.mahout.math.decomposer, org.apache.mahout.math.decomposer.hebbian, org.apache.mahout.math.decomposer.lanczos, org.apache.mahout.math.flavor, org.apache.mahout.math.function, org.apache.mahout.math.jet.