results.md

Best result so far

Model

CatBoost with default parameters

Preprocessing

The default preprocessing pipeline in version 0.1.0.

Actions

• Count vectorize merchant name
• Obtain day, day of week, month and hour of day from purchase timestamp
• Log transform purchase amount and user income
• Ordinal encode user ID and gender
• Impute missing age with a constant
• Select household size and IS_PURCHASE_PAID_VIA_MPESA_SEND_MONEY

Score

• Metric: Log loss
• Cross validation score: 1.54217 (std: NaN)
• Public leaderboard score: 1.468897 (rank: 50/221)
• Private leaderboard score: 1.584807 (rank: 48/221)