040000 tree bc04c540cec7a374a93cc82af1d68403797ddc50	bucketizer
040000 tree 81d3c1091b4198c420061eb461c4ffa3e148c62b	elementwiseproduct
040000 tree ae612db35688c688cd2dde38e462a76ce4273ce4	featurehasher
040000 tree b4cb9b76815d3bbae93ea3fb51c8956264883f00	minmaxscaler
040000 tree 45cbc3b804de742deb80271eed0ad982bf38bd91	onehotencoder
040000 tree 498428c933b566f1551a6630f60e699726e614b8	regextokenizer
040000 tree 67d5bfc54ce852aadaff5a37d17ebe0d31a22108	standardscaler
040000 tree 0d9c8720ed2725e4a074e13c140c44af48bdc96a	stringindexer
040000 tree a9b7da049c7d58a8a2080129a087fcc4670a4ed1	tokenizer
040000 tree c3ec27b07dbbeb7f8a1194a2c7b416e9938ff890	vectorassembler
040000 tree 322ae044ed64ac7b7f9c11459f06eb4ce992be1e	vectorindexer
040000 tree a99120091d5c983e6ff3698209c3fcd5e043305d	vectorslicer