040000 tree 615a07e80f324311bf2fb097060df9a7110146fd	array_ops
040000 tree cc44805e9a0762f0a73fa3affc3121fb0bff56bc	decision_tree
040000 tree 328b8772e7c00638c0007a18e1d592873878f0d9	kernel_machines
040000 tree c236fd26fb725227aef621399d375106bd9f1baf	plda
040000 tree 697385ee9046d2cb92f8fb5dc42e639a130db3bb	sketch
040000 tree c27ab0bc9ef18d68133bbc08da25c1f4658cb503	svec