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Update demo for ranking. (#5154)

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This commit is contained in:
Jiaming Yuan
2019-12-24 13:39:07 +08:00
committed by GitHub
parent 0202e04a8e
commit 73b1bd2789
3 changed files with 7 additions and 8 deletions
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6
demo/rank/rank.py
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@@ -34,8 +34,8 @@ test_dmatrix = DMatrix(x_test)
train_dmatrix.set_group(group_train)
valid_dmatrix.set_group(group_valid)
params = {'objective': 'rank:pairwise', 'eta': 0.1, 'gamma': 1.0,
'min_child_weight': 0.1, 'max_depth': 6}
params = {'objective': 'rank:ndcg', 'eta': 0.1, 'gamma': 1.0,
'min_child_weight': 0.1, 'max_depth': 6}
xgb_model = xgb.train(params, train_dmatrix, num_boost_round=4,
evals=[(valid_dmatrix, 'validation')])
evals=[(valid_dmatrix, 'validation')])
pred = xgb_model.predict(test_dmatrix)