Abstract: A de-identification data generation apparatus, method, and non-transitory computer readable storage medium thereof are provided. The apparatus is stored with a plurality of original records, wherein each of the records has a plurality of original values corresponding to a plurality of attributes one-to-one. The apparatus decides a plurality of attribute relations (including a user-defined attribute relation) according to the original values, wherein each attribute relation is defined by two attributes. The apparatus decides a plurality of relation groups according to the attribute relations. For each relation group, the apparatus calculates a statistical distribution of the original values corresponding to the attributes in the relation group, aggregates the statistical distribution into a plurality of sub-statistical distributions, and adds noise to each sub-statistical distribution individually.

Abstract: A metadata server, a network device and an automatic resource management method for the metadata server are provided. The metadata server connects to a plurality of storage servers and a plurality of user devices, and stores system topology information which records connection relationships between the storage servers and the user devices. The metadata server detects whether a system change event occurs between the metadata server and a target storage server. When the system change event occurs, the metadata server updates the system topology information, generates a notification message in response to the update on the system topology information, and transmits the notification message to at least one relevant user device of the user devices. The at least one relevant user device may include the network device.