2.5.6. Cost variant

Constraint C 𝑎𝑙𝑠𝑜 is a cost variant of constraint C 𝑒𝑛𝑡𝑟𝑦 .

EXAMPLE: As an example, constraint C 𝑎𝑙𝑠𝑜 = 𝚜𝚞𝚖_𝚘𝚏_𝚠𝚎𝚒𝚐𝚑𝚝𝚜_𝚘𝚏_𝚍𝚒𝚜𝚝𝚒𝚗𝚌𝚝_𝚟𝚊𝚕𝚞𝚎𝚜 is the cost variant of constraint C 𝑒𝑛𝑡𝑟𝑦 = 𝚗𝚟𝚊𝚕𝚞𝚎, where we introduce a weight for each value and we replace the number of distinct values by the sum of weights associated with distinct values.