040000 tree 59a30bd46c25ed414e09309b1f04fcd2ddb2c2ae	array_ops
040000 tree 2506f38774ff0d9813ecee8b3678245bb794dd2d	kmeans
040000 tree debb4ab597f3482ccc83aec1bf6c59d28a8e5f4c	sketch
040000 tree 1f97f701d78db1731c61616879a2ea0739bbed3b	stemmer
040000 tree 55f4875de5d5e27558e8679f6a51ff579a20a14b	svec
040000 tree 962a418601f44f2218e82d953621b255b69f5972	svec_util
040000 tree f084ae87dd5f71d0fa72af52cdd15289b467c3af	utils