SYSTEMS AND METHODS FOR PRIVACY PRESERVING DETERMINATION OF INTERSECTIONS OF SETS OF USER IDENTIFIERS

    公开(公告)号:US20210004864A1

    公开(公告)日:2021-01-07

    申请号:US16592110

    申请日:2019-10-03

    Applicant: GOOGLE LLC

    Abstract: At least one aspect is directed to determining an estimate of an intersection of user identifiers in a first set of user identifiers and a second set of user identifiers. The first and second sets of user identifiers can be populated with user identifiers that have interacted with the same content item or content item campaign. Estimates of intersections of the first and the second sets can be determined based on a binomial vector approach, a vector of counts approach, or a hybrid approach. The binomial vector approach generates vectors based on k hashes of each user identifier in the first set and summing the vectors to generate a first vector. The intersection can be determined based on a dot product of the first vector and a second vector similarly generated from the second set of user identifiers.

    SECURE MULTI-PARTY REACH AND FREQUENCY ESTIMATION

    公开(公告)号:US20210359836A1

    公开(公告)日:2021-11-18

    申请号:US17278496

    申请日:2020-07-07

    Applicant: GOOGLE LLC

    Abstract: Systems and methods for generating min-increment counting bloom filters to determine count and frequency of device identifiers and attributes in a networking environment are disclosed. The system can maintain a set of data records including device identifiers and attributes associated with device in a network. The system can generate a vector comprising coordinates corresponding to counter registers. The system can identify hash functions to update a counting bloom filter. The system can hash the data records to extract index values pointing to a set of counter registers. The system can increment the positions in the min-increment counting bloom filter corresponding to the minimum values of the counter registers. The system can obtain an aggregated public key comprising a public key. The system can encrypt the counter registers using the aggregated shared key to generate an encrypted vector. The system can transmit the encrypted vector to a networked worker computing device.

    SYSTEMS AND METHODS FOR PRIVACY PRESERVING DETERMINATION OF INTERSECTIONS OF SETS OF USER IDENTIFIERS

    公开(公告)号:US20210004487A1

    公开(公告)日:2021-01-07

    申请号:US16592190

    申请日:2019-10-03

    Applicant: GOOGLE LLC

    Abstract: At least one aspect is directed to determining an estimate of an intersection of user identifiers in a first set of user identifiers and a second set of user identifiers. The first and second sets of user identifiers can be populated with user identifiers that have interacted with the same content item or content item campaign. Estimates of intersections of the first and the second sets can be determined based on a binomial vector approach, a vector of counts approach, or a hybrid approach. The binomial vector approach generates vectors based on k hashes of each user identifier in the first set and summing the vectors to generate a first vector. The intersection can be determined based on a dot product of the first vector and a second vector similarly generated from the second set of user identifiers.

    SECURE MULTI-PARTY REACH AND FREQUENCY ESTIMATION

    公开(公告)号:US20210359846A1

    公开(公告)日:2021-11-18

    申请号:US17276643

    申请日:2020-07-28

    Applicant: GOOGLE LLC

    Abstract: Systems and methods for generating min-increment counting bloom filters to determine count and frequency of device identifiers and attributes in a networking environment are disclosed. The system can maintain a set of data records including device identifiers and attributes associated with device in a network. The system can generate a vector comprising coordinates corresponding to counter registers. The system can identify hash functions to update a counting bloom filter. The system can hash the data records to extract index values pointing to a set of counter registers. The system can increment the positions in the min-increment counting bloom filter corresponding to the minimum values of the counter registers. The system can obtain an aggregated public key comprising a public key. The system can encrypt the counter registers using the aggregated shared key to generate an encrypted vector. The system can transmit the encrypted vector to a networked worker computing device.

    Secure Multi-Party Reach and Frequency Estimation

    公开(公告)号:US20240372704A1

    公开(公告)日:2024-11-07

    申请号:US18769226

    申请日:2024-07-10

    Applicant: Google LLC

    Abstract: Systems and methods for generating min-increment counting bloom filters to determine count and frequency of device identifiers and attributes in a networking environment are disclosed. The system can maintain a set of data records including device identifiers and attributes associated with device in a network. The system can generate a vector comprising coordinates corresponding to counter registers. The system can identify hash functions to update a counting bloom filter. The system can hash the data records to extract index values pointing to a set of counter registers. The system can increment the positions in the min-increment counting bloom filter corresponding to the minimum values of the counter registers. The system can obtain an aggregated public key comprising a public key. The system can encrypt the counter registers using the aggregated shared key to generate an encrypted vector. The system can transmit the encrypted vector to a networked worker computing device.

    SECURE MULTI-PARTY REACH AND FREQUENCY ESTIMATION

    公开(公告)号:US20220376887A1

    公开(公告)日:2022-11-24

    申请号:US17278626

    申请日:2020-07-07

    Applicant: GOOGLE LLC

    Abstract: Systems and methods for generating min-increment counting bloom filters to determine count and frequency of device identifiers and attributes in a networking environment are disclosed. The system can maintain a set of data records including device identifiers and attributes associated with device in a network. The system can generate a vector comprising coordinates corresponding to counter registers. The system can identify hash functions to update a counting bloom filter. The system can hash the data records to extract index values pointing to a set of counter registers. The system can increment the positions in the min-increment counting bloom filter corresponding to the minimum values of the counter registers. The system can obtain an aggregated public key comprising a public key. The system can encrypt the counter registers using the aggregated shared key to generate an encrypted vector. The system can transmit the encrypted vector to a networked worker computing device.

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