公开(公告)号：US10855475B1

公开(公告)日：2020-12-01

申请号：US16123480

申请日：2018-09-06

Applicant: Facebook, Inc.

Inventor： Frederick R. Leach ,  Michael Randolph Corey ,  Erik Taubeneck ,  Daniel K. Chapsky

IPC: H04L9/32 ,  G06F21/62 ,  H04L29/06 ,  H04L9/06 ,  H04L29/08

Abstract: The disclosed computer-implemented method for securing data on blockchains may include receiving a smart contract from a third-party for a designated party and a data set, transmitting, to a network of nodes, a request to add the smart contract and the data set to an immutable distributed ledger, receiving a digital signature from the third-party, receiving a digital signature from the designated party, validating the smart contract, the digital signature from the third-party, and the digital signature from the designated party, and in response to validating the smart contract, the digital signature from the third-party and the digital signature from the designated party, adding the smart contract and the data set to the immutable distributed ledger. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US20170024455A1

公开(公告)日：2017-01-26

申请号：US14808320

申请日：2015-07-24

Applicant: Facebook, Inc.

Inventor： Spencer Powell ,  Boris Pierre Arnoux ,  Sue Ann Hong ,  Daniel K. Chapsky ,  Adam Scott Berger ,  Nikhil Girish Nawathe ,  Christopher William Jones ,  Justin Thomas Palumbo ,  Edward R. Gan ,  Rituraj Kirti ,  Mui Thu Tran ,  Yujie Yang

IPC: G06F17/30 ,  H04L29/08

CPC classification number: G06F16/285 ,  H04L67/1046 ,  H04L67/306

Abstract: An online system receives information from an entity identifying a set of users of the online system and groups users included in the set into clusters based on their similarities using a clustering model or algorithm (e.g., k-means clustering) and based on one or more parameters specified by the entity. The online system generates expanded clusters that include additional users in one or more clusters based on similarities between the additional users and users in various clusters. If an additional user is included in multiple expanded clusters, the online assigns the additional user exclusively to an expanded cluster that best fits the user.

Abstract translation: 在线系统从标识一组在线系统的用户的实体接收信息，并且使用聚类模型或算法（例如，k均值聚类），并且基于一个或多个 参数由实体指定。 在线系统基于各种群集中的附加用户和用户之间的相似性，生成扩展群集，其中包括一个或多个群集中的其他用户。 如果多个扩展群集中包含其他用户，则在线将额外的用户专门分配给最适合用户的扩展群集。

公开(公告)号：US11190338B1

公开(公告)日：2021-11-30

申请号：US16012687

申请日：2018-06-19

Applicant: Facebook, Inc.

Inventor： Michael Randolph Corey ,  Daniel K. Chapsky ,  Erik Taubeneck ,  Ionela-Roxana Danila ,  Yu-Yu Lin

IPC: H04L9/32 ,  H04L9/06

Abstract: An online system receives impression data from one or more content publishers. The impression data describes impressions provided to users of the online system on behalf of an agent. The online system selects a randomly selected number of impressions in the received impression data. The online system generates an impressions block by encrypting impression data that describes the selected set of impressions using a unique cypher, and adds the impressions block to a blockchain. The online system further generates a cypher block by encrypting the cypher and an identifier of the impressions block to which the cypher applies using a public key provided by the agent to the online system. The online system adds the cypher block to the blockchain. The agent can recover the cypher from the cypher block based on a private key, and the agent can then recover the impression data using the recovered cypher.

公开(公告)号：US11100533B1

公开(公告)日：2021-08-24

申请号：US16132347

申请日：2018-09-14

Applicant: Facebook, Inc.

Inventor： Erik Taubeneck ,  Michael Randolph Corey ,  Frederick R. Leach ,  Daniel K. Chapsky

IPC: G06Q30/00 ,  G06Q30/02 ,  H04L9/06 ,  H04L9/08 ,  G06Q50/00 ,  G06F16/23

Abstract: The disclosed computer-implemented method may include (1) accessing, by a computing device and from a record stored in an immutable distributed ledger, information describing characteristics of a target audience, (2) ascertaining a target audience member identifier of a target audience member by matching information describing characteristics of the target audience member with the information describing characteristics of the target audience, (3) generating a unique and encrypted secure identifier linking an advertiser identifier to the target audience member identifier, and (4) committing the secure identifier to the immutable distributed ledger as an update transaction to the record. Various other methods, systems, and computer-readable media are also disclosed.