Cross-selling identifies products or services that satisfy additional, complementary needs that are unfulfilled by the original product that a customer possesses. As an example, a mouse could be cross-sold to a customer purchasing a keyboard. Oftentimes, cross-selling points users to products they would have purchased anyways; by showing them at the right time, a store ensures they make the sale. Cross-selling is prevalent in various domains and industries including banks. For example, credit cards are cross-sold to people registering a savings account. In ecommerce, cross-selling is often utilized on product pages, during the checkout process, and in lifecycle campaigns. It is a highly-effective tactic for generating repeat purchases, demonstrating the breadth of a catalog to customers. Cross-selling can alert users to products they didn't previously know you offered, further earning their confidence as the best retailer to satisfy a particular need.
problem - https://datahack.analyticsvidhya.com/contest/janatahack-cross-sell-prediction
LB - https://datahack.analyticsvidhya.com/contest/janatahack-cross-sell-prediction/#LeaderBoard
Public Rank - 14
Private Rank - 19/619
Blending = 0.54 LigthGbm + 0.46 Catboost