040000 tree 6a8e53714e739545fe992737370305213edb096a	array_ops
040000 tree 40d05a5e8132c8fc408f39bc4241d15f36e14144	kmeans
040000 tree 9595da2a8880292fc96b7caf341c7e3284e4fd2c	sketch
040000 tree 1f97f701d78db1731c61616879a2ea0739bbed3b	stemmer
040000 tree a0720e31cc6671eabe4210502fdc3915596cb739	svec
040000 tree 1e301fa360a9c5d3c52eaef85f106ae544ff47e5	svec_util
040000 tree afb516ca418f0501e6ff82372768ce60aefa3a93	utils