11. A system, comprising: at least one memory storing computer-executable instructions; and at least one processor configured to access the at least one memory and execute the computer-executable instructions to: determine a first item associated with a purchase transaction between a merchant and a user device using transaction data associated with the purchase transaction, the purchase transaction comprising a purchase of a good or a service from the merchant; generate a purchase recommendation for a second item using at least a portion of the transaction data, wherein the second item is associated with the first item; send the purchase recommendation to the user device; determine one or more language model elements having a predefined association with the first item, the one or more language model elements comprising at least one language model element representative of the second item associated with the first item; and modify a language model by including the at least one language model element in the language model.
11. A system, comprising: at least one memory storing computer-executable instructions; and at least one processor configured to access the at least one memory and execute the computer-executable instructions to: determine a first item associated with a purchase transaction between a merchant and a user device using transaction data associated with the purchase transaction, the purchase transaction comprising a purchase of a good or a service from the merchant; generate a purchase recommendation for a second item using at least a portion of the transaction data, wherein the second item is associated with the first item; send the purchase recommendation to the user device; determine one or more language model elements having a predefined association with the first item, the one or more language model elements comprising at least one language model element representative of the second item associated with the first item; and modify a language model by including the at least one language model element in the language model. 14. The system of claim 11 , wherein to generate the purchase recommendation, the at least one processor is further configured to determine an association between third items and the item; and select the second item from the third items.