A combination weighing device comprising: a plurality of conveying units that conveys articles; a plurality of hoppers that temporarily stores the articles conveyed by the conveying units; a weighing unit that weighs a weighing value according to a mass of the articles stored in each of the hoppers; a controller that selects a combination of weighing values from a plurality of weighing values weighed by the weighing unit and associated with each of the plurality of hoppers so that a total value corresponds to a target weighing value, and causes the hoppers corresponding to the combination to discharge the articles; a learning unit that updates parameters for setting operations of the conveying units by learning; and a storage unit that stores at least some parameters among the parameters updated by the learning unit; wherein the controller: causes the storage unit to store the parameters updated by the learning unit; in a case in which work of the device is temporarily suspended and then restarted, determines whether a characteristic of a conveying unit of the plurality of conveying units has changed after the temporary suspension and until restart, wherein the change in characteristic of the conveying unit corresponds to one of: cleaning of the conveying unit, or replacement of the conveying unit; when it is determined that the characteristic of the conveying unit has changed as a result of the determination, acquires a restart parameter from among the parameters stored in the storage unit, the restart parameter corresponding to a different parameter from a setting parameter set for an operation of the conveying unit immediately before temporary suspension, and sets the restart parameter for the conveying unit to cause an operation; and when it is determined that the characteristic of the conveying unit has not changed as a result of the determination, acquires the setting parameter from the storage unit and sets the setting parameter for the conveying unit to cause an operation. a plurality of conveying units that conveys articles; a plurality of hoppers that temporarily stores the articles conveyed by the conveying units; a weighing unit that weighs a weighing value according to a mass of the articles stored in each of the hoppers; a controller that selects a combination of weighing values from a plurality of weighing values weighed by the weighing unit and associated with each of the plurality of hoppers so that a total value corresponds to a target weighing value, and causes the hoppers corresponding to the combination to discharge the articles; a learning unit that updates parameters for setting operations of the conveying units by learning; and a storage unit that stores at least some parameters among the parameters updated by the learning unit; wherein the controller: causes the storage unit to store the parameters updated by the learning unit; in a case in which work of the device is temporarily suspended and then restarted, determines whether a characteristic of a conveying unit of the plurality of conveying units has changed after the temporary suspension and until restart, wherein the change in characteristic of the conveying unit corresponds to one of: cleaning of the conveying unit, or replacement of the conveying unit; when it is determined that the characteristic of the conveying unit has changed as a result of the determination, acquires a restart parameter from among the parameters stored in the storage unit, the restart parameter corresponding to a different parameter from a setting parameter set for an operation of the conveying unit immediately before temporary suspension, and sets the restart parameter for the conveying unit to cause an operation; and when it is determined that the characteristic of the conveying unit has not changed as a result of the determination, acquires the setting parameter from the storage unit and sets the setting parameter for the conveying unit to cause an operation. causes the storage unit to store the parameters updated by the learning unit; in a case in which work of the device is temporarily suspended and then restarted, determines whether a characteristic of a conveying unit of the plurality of conveying units has changed after the temporary suspension and until restart, wherein the change in characteristic of the conveying unit corresponds to one of: cleaning of the conveying unit, or replacement of the conveying unit; when it is determined that the characteristic of the conveying unit has changed as a result of the determination, acquires a restart parameter from among the parameters stored in the storage unit, the restart parameter corresponding to a different parameter from a setting parameter set for an operation of the conveying unit immediately before temporary suspension, and sets the restart parameter for the conveying unit to cause an operation; and when it is determined that the characteristic of the conveying unit has not changed as a result of the determination, acquires the setting parameter from the storage unit and sets the setting parameter for the conveying unit to cause an operation.