A device may comprise a memory and a processor coupled to the memory. The processor may receive transaction information and entity information for a plurality of entities and may generate a first model based on the transaction information, the entity information, and information identifying an event, a theme, or a transaction parameter. The processor may process, using the first model, the transaction information and the entity information to identify a set of related entities and a type of relationship associated with the set of related entities. The processor may determine, using a second model, one or more modifications to a first set of accounts and a second set of accounts associated with the first and second entities based on the type of relationship and may perform one or more actions based on the one or more modifications.