---
license: unknown
language:
- en
- ru
tags:
- time-series
- finance
- bank
pretty_name: Alfa Card Transactions
---

## Dataset Structure

### Data Instances

The example of one sample is provided below
```
{
  'app_id': 10,
  'transactions':
  [ 
    [10.0, 0.0, 1.0, 6.0, 54.0, 22.0, 3.0, 1.0, 2.0, 2.0, 2.0, 1.0, 66.0, 2.0, 2.0, 0.0, 351.0, 50.0,-1.0, 1.0],
    [10.0, 0.3876771200456198, 1.0, 2.0, 54.0, 8.0, 1.0, 1.0, 2.0, 1.0, 2.0, 1.0, 66.0, 2.0, 2.0, 21.0, 351.0, 50.0, 21.0, 2.0]
  ],
  'product': 1,
  'flag': 0
}
```

### Data Fields

- `app_id`: application ID.
- `history`: an array of transactions where each transaction is represented as a 20-dimensional array, each element of the array represents a corresponding feature from the following list.
  - `app_id`: application ID.
  - `amnt`: normalized transaction amount. 0.0 - corresponds to omissions.
  - `currency`: transaction currency ID.
  - `operation_kind`: ID of the transaction type.
  - `card_type`: unique identifier of the card type.
  - `operation_type`: ID of the type of plastic card transaction.
  - `operation_type_group`: ID of a group of card transactions, for example, debit card or credit card.
  - `ecommerce_flag`: feature of e-commerce.
  - `payment_system`: ID of the payment system type.
  - `income_flag`: feature of debiting/depositing funds to the card.
  - `mcc`: unique identifier of the type of outlet.
  - `country`: transaction country ID.
  - `city`: transaction city ID.
  - `mcc_category`: ID of the transaction store category.
  - `day_of_week`: day of the week when the transaction was made.
  - `hour`: hour when the transaction was made.
  - `days_before`: number of days before the date of issue of the loan.
  - `weekofyear`: number of the week in the year when the transaction was made.
  - `hour_diff`: number of hours since the last transaction for this client.
  - `transaction_number`: sequence number of the client's transaction.
- `product`: product ID for which it is necessary to make a decision whether the applicant will go into default or not
- `flag`: target, 1 - the fact of going into default.