Patent ID: 11907401
Assignee: WARNER BROS. ENTERTAINMENT INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. An apparatus for generating noise to protect privacy of user selections, comprising:
means for presenting a first subset of a plurality of information items via an interface to a user and for receiving via the interface, a first selection of at least one item by the user from the first subset of the plurality of items;
means for assembling a first request containing the first selection and a selection of another subset of the plurality of items selected by the at least one processor, wherein each item of the first request defines one of a plurality of clusters;
means for transmitting the first request to a recommender server; and
means for performing recursive operations for assembling at least one subsequent request by the user containing at least one subsequent selection and selection noise indicating a superset of an actual selection history for the user; and
means for generating the selection noise for each item in the subsequent selection at least in part by choosing from each cluster a selection noise item having a ranked measure proportional to a ranked measure of the at least one item selected by the user, and appending the selection noise item to the next subsequent request.