cuiyi0501 / jdata-machine-learning-competetion

京东JData算法大赛-高潜用户购买意向预测

Jdata-machine-learning-competetion

京东JData算法大赛-高潜用户购买意向预测

Data Division

train_start_date = '2016-03-10'; train_end_date = '2016-04-11'

test_start_date = '2016-04-11'; test_end_date = '2016-04-16'

prediction_start_date = '2016-03-15'; prediction_end_date = '2016-04-16'

Feature Engineering

• User related features: new_user.py

  • raw features such as age, sex
  • user_browse_num
  • user_addcart_num
  • user_delcart_num
  • user_buy_num
  • user_favor_num
  • user_click_num
  • buy_addcart_ratio
  • buy_browse_ratio
  • buy_click_ratio
  • buy_favor_ratio

• Item related features: new_item.py

  • raw features such as brand
  • item_browse_num
  • item_addcart_num
  • item_delcart_num
  • item_buy_num
  • item_favor_num
  • item_click_num
  • buy_addcart_ratio
  • buy_browse_ratio
  • buy_click_ratio
  • buy_favor_ratio
  • comment_num
  • has_bad_comment
  • bad_comment_rate

• Time related features: gen_feat.py

  • accumulate_user_feat
  • accumulate_product_feat

• Statistic related features:

  • sku_hot_rank
  • brank_hot_rank

Model and Ensemble

model: XGB, LightGBM, Random Forest

Ensemble method: voting