customer2vec-data-dictionary.py

products.csv
  | product_id | product_name                | aisle_id | department_id |
  | 1          | Chocolate Sandwich Cookies  | 61       | 19            |
  | 2          | All-Seasons Salt            | 104      | 13            |  
  | 3          | Robust Golden Oolong Tea    | 94       | 7             |  
  ...

departments.csv    # coarse categorization
  | department_id  | department |
  | 1              | frozen     |
  | 2              | other      |
  | 3              | bakery     |
  ...

aisles.csv         # fine-grained categorization
  | aisle_id  | aisle                 |
  | 1         | prepared soups salads | 
  | 2         | specialty cheeses     |
  | 3         | energy granola bars   |
  ...

order_products__prior.csv
  | order_id | product_id | add_to_cart_order * | ...  
  | 1        | 49302      | 1                   |  
  | 1        | 11109      | 2                   |  
  | 110246   | 3          | 0                   |
  ... 

orders.csv
  | order_id | user_id | ...
  | 2539329  | 1       |
  | 2398795  | 1       |  
  | 473747   | 1       |  
  ...

* in what order products were added to the cart