Augmenting datasets using de-identified data and selected authorized records

A computer system for migrating and de-identifying data, the computer system comprising:

• one or more computer processors;
• one or more computer readable storage media;
• program instructions stored on the one or more computer readable storage media for execution by at least one of the one or more computer processors, the program instructions comprising instructions to:
• determine one or more regions of interestingness within a model of a first set of data records, wherein the first set of data records are authorized for a research study by associated entities and contain a plurality of direct identifiers and quasi-identifiers of the associated entities, wherein the one or more regions of interestingness are determined based on the values of the plurality of direct identifiers and quasi-identifiers;
• represent within the model a second set of data records, wherein the second set of data records are relevant for supporting objectives of the research study, correspond to entities other than those associated with the first set of data records, and are used after de-identification according to de-identification requirements or authorization by corresponding entities;
• identify data records from the second set of data records that are particularly useful and have greater relevance for supporting the objectives of the research study based on the model;
• request authorization from the corresponding entities of the identified data records from the second set of data records, wherein requests for authorization are automatically generated and sent to the corresponding entities via a network;
• and
• generate a resulting dataset for the research study by including the data records of the first set of data records within selected regions of interestingness and the identified data records of the second set of data records after receiving the requested authorization via the network.