Hivemall v0.4.2-rc.2

This is the second release candidate for Hivemall v0.4.2.

CAUTION: Please use add_bias instead of addBias for adding bias clauses from this release. If you want to use addBias, please issue the deprecated DDLs manually.

We DO NOT recommend to use this version in production yet.

---

Changes since v0.4.2-rc.1 are summarized as follows:

• Bug Fixes
  • Fixed a corner case bug in mf_predict [4282b6a] #310
  • Fix a bug in FMArrayModel initialization scheme [564aefe][05c8da0] #302
• Major Changes
  • Fixed feature_hashing UDF behavior for a bias feature '0' [a8fd640]
  • Cleaned up deprecated DDLs including addBias [2264ae6]
  • Changed (Fixed) the behavior of binarize_label [ab5c19e]
  • Reverted to support a function alias addBias for Treasure Data env [0e99357]
• Minor Changes
  • Updated feature OI validation scheme to use HiveUtils [612a5df]
  • Made feature UDF as GenericUDF and handle null weight [77922dc] #306 #269
  • Fixed tree_predict UDF of RandomForest to accept any Integer types [c7c5213]