| { |
| "parameters": { |
| "n_customers": "<int> Number of customers to be served.", |
| "item_type": "<int> Item category determining the number and dimension ranges of items per customer.", |
| "domain_size": "<int> Number of possible realizations for each stochastic item.", |
| "pct_stochastic_customers": "<int> Percentage of customers whose items have uncertain dimensions and weights.", |
| "num_stochastic_customers": "<int> Number of customers whose items have uncertain dimensions and weights.", |
| "recourse_cost_cf": "<int> Penalty cost incurred for each customer left unserved due to packing infeasibility." |
| }, |
| "vehicle": { |
| "H": "<int> Height of the rectangular loading area of each vehicle.", |
| "W": "<int> Width of the rectangular loading area of each vehicle.", |
| "Q": "<int> Maximum total weight each vehicle can carry.", |
| "K": "<int> Number of identical vehicles available in the fleet." |
| }, |
| "depot": { |
| "id": "<int> Identifier of the depot node in the distance matrix.", |
| "x": "<int> Horizontal coordinate of the depot.", |
| "y": "<int> Vertical coordinate of the depot." |
| }, |
| "customers": [ |
| { |
| "id": "<int> Unique identifier of the customer, used as a row/column index in the distance matrix.", |
| "is_stochastic": "<bool> Whether this customer's items have uncertain dimensions and weights.", |
| "num_items": "<int> Number of rectangular items to be delivered to this customer.", |
| "items": [ |
| { |
| "item_id": "<int> Identifier of the item within this customer's order.", |
| "shape": "<str> Shape category of the item, one of 'vertical', 'horizontal', or 'homogeneous'.", |
| "is_stochastic": "<bool> Whether this item's dimensions and weight are uncertain.", |
| "num_realizations": "<int> Number of possible size and weight outcomes for this item.", |
| "realizations": [ |
| { |
| "realization_id": "<int> Identifier of this possible outcome for the item.", |
| "height": "<int> Height of the item in this realization.", |
| "width": "<int> Width of the item in this realization.", |
| "weight": "<int> Weight of the item in this realization.", |
| "probability": "<float> Probability that this realization occurs." |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "distance_matrix": "<list[list[int]], shape [n_customers+1][n_customers+1]> Travel cost between each pair of nodes, where row/column 0 is the depot and rows/columns 1 through n_customers are customers." |
| } |
|
|
