Patent ID: 11914733
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 3:
4. A system comprising:
a memory;
a processor communicatively coupled to the memory, the processor configured to:
receive a data erasure request associated with a user, wherein the data erasure request is a request to delete all records associated with the user from a data reservoir;
identify, based at least in part on the data erasure request, an entity associated with the user and one or more identifiers for the user;
identify, based at least in part on the one or more identifiers for the user, a cohort that includes the user;
compare the one or more identifiers for the user to identifiers of a plurality of users that are not members of the cohort, wherein comparing the one or more identifiers for the user to identifiers of the plurality of users that are not members of the cohort includes calculating a similarity score between the user and each of the plurality of users that are not members of the cohort;
identify a replacement user from the plurality of users based on the comparison wherein the replacement user is identified as having the highest similarity score of the calculated similarity scores;
replace the entity associated with the user in the cohort with an entity associated with the replacement user, wherein replacing the entity associated with the user in the cohort includes completing the data erasure request by deleting the entity associated with the user and all records associated with the user from the data reservoir; and
delay the replacement of the entity associated with the user in the cohort with the entity associated with the replacement user based on a determination that the similarity score of the replacement user is less than a threshold level, wherein the delay lasts until the similarity score of the replacement user exceeds the threshold level up to a maximum time period from receipt of the data erasure request,

wherein similarity scores for newly added users that are not members of the cohort are calculated during the maximum time period.