Abstract: A method and an apparatus for identifying a transaction risk are disclosed. The method includes obtaining risk identification information of a sub-network to which a node relating to a transaction to be identified belongs; and identifying a risk of the transaction to be identified based on the risk identification information of the sub-network to which the node relating to the transaction to be identified belongs, wherein the sub-network is a network acquired by partitioning a relationship network based on connectivity, the relationship network is a network built up with entities and activities relating to a plurality of transactions.

Abstract: An information sending method is provided. The method includes determining, by the apparatus, an interaction setting between a first terminal device and a second terminal device; determining a service index of the first terminal device based on the interaction setting between the first terminal device and the second terminal device; determining information to send based on the service index; and sending the determined information to the first terminal device.

Abstract: A method and an apparatus for identifying a transaction risk are disclosed. The method includes obtaining risk identification information of a sub-network to which a node relating to a transaction to be identified belongs; and identifying a risk of the transaction to be identified based on the risk identification information of the sub-network to which the node relating to the transaction to be identified belongs, wherein the sub-network is a network acquired by partitioning a relationship network based on connectivity, the relationship network is a network built up with entities and activities relating to a plurality of transactions.

Abstract: An information sending method is provided. The method includes determining, by the apparatus, an interaction setting between a first terminal device and a second terminal device; determining a service index of the first terminal device based on the interaction setting between the first terminal device and the second terminal device; determining information to send based on the service index; and sending the determined information to the first terminal device.

Abstract: A method and an apparatus for identifying a transaction risk are disclosed. The method includes obtaining risk identification information of a sub-network to which a node relating to a transaction to be identified belongs; and identifying a risk of the transaction to be identified based on the risk identification information of the sub-network to which the node relating to the transaction to be identified belongs, wherein the sub-network is a network acquired by partitioning a relationship network based on connectivity, the relationship network is a network built up with entities and activities relating to a plurality of transactions.

Abstract: An information sending method is provided. The method includes calculating a weight of an interaction setting between a first terminal device and a second terminal device, calculating a relational score based on the weight between the first terminal device and the second terminal device, the second terminal device being one or more second terminal devices, calculating a service index of the first terminal device based on the relational score, and sending information to the first terminal device based on the service index.

Abstract: Multiple items of first address information are identified by a server associated with a first service provider. Each item of first address information is identified from a corresponding item of first account information provided by the first service provider. Multiple items of second address information are identified by the server. Each item of second address information is identified from a corresponding item of second account information provided by a second service provider. For each item of first address information, a determination is made, by the server, that an item of second address information matches the particular item of first address information, and a mapping relationship is established, by the server, between an item of first account information, corresponding to the particular item of first address information, and an item of second account information, corresponding to the item of second address information.

Abstract: An information sending method is provided. The method includes calculating a weight of an interaction setting between a first terminal device and a second terminal device, calculating a relational score based on the weight between the first terminal device and the second terminal device, the second terminal device being one or more second terminal devices, calculating a service index of the first terminal device based on the relational score, and sending information to the first terminal device based on the service index.

Abstract: Multiple items of first address information are identified by a server associated with a first service provider. Each item of first address information is identified from a corresponding item of first account information provided by the first service provider. Multiple items of second address information are identified by the server. Each item of second address information is identified from a corresponding item of second account information provided by a second service provider. For each item of first address information, a determination is made, by the server, that an item of second address information matches the particular item of first address information, and a mapping relationship is established, by the server, between an item of first account information, corresponding to the particular item of first address information, and an item of second account information, corresponding to the item of second address information.

Abstract: A user data sharing method comprises: acquiring information of a query medium; obtaining, according to the information of the query medium, at least one user account related to the query medium and relationship information of the at least one user account from a medium network, the relationship information of the user account comprising: a strength of a relationship between the user account and the query medium and a strength of a relationship between the user account and other user accounts; constructing a local medium network by using the obtained at least one user account and relationship information of the at least one user account; determining a trusted account from the at least one user account by using the local medium network; and acquiring user data of the trusted account and outputting the user data of the trusted account as the user data corresponding to the information of the query medium.

Abstract: An information sending method is provided. The method includes calculating a weight of an interaction setting between a first terminal device and a second terminal device, calculating a relational score based on the weight between the first terminal device and the second terminal device, the second terminal device being one or more second terminal devices, calculating a service index of the first terminal device based on the relational score, and sending information to the first terminal device based on the service index.

Abstract: Multiple items of first address information are identified by a server associated with a first service provider. Each item of first address information is identified from a corresponding item of first account information provided by the first service provider. Multiple items of second address information are identified by the server. Each item of second address information is identified from a corresponding item of second account information provided by a second service provider. For each item of first address information, a determination is made, by the server, that an item of second address information matches the particular item of first address information, and a mapping relationship is established, by the server, between an item of first account information, corresponding to the particular item of first address information, and an item of second account information, corresponding to the item of second address information.

Abstract: A method of identifying risky user behaviors in computer networks includes determining behavior data of a user. The behavior data describes user activities of the user using a computer network. A particular event chain is identified from the behavior data. The particular event chain includes one or more events of the user activities. A risk coefficient of the particular event chain is determined. Based on the risk coefficient, whether the particular event chain represents a risky user behavior is determined.

Abstract: An information sending method is provided. The method includes calculating a weight of an interaction setting between a first terminal device and a second terminal device, calculating a relational score based on the weight between the first terminal device and the second terminal device, the second terminal device being one or more second terminal devices, calculating a service index of the first terminal device based on the relational score, and sending information to the first terminal device based on the service index.

Abstract: A method and an apparatus for identifying a transaction risk are disclosed. The method includes obtaining risk identification information of a sub-network to which a node relating to a transaction to be identified belongs; and identifying a risk of the transaction to be identified based on the risk identification information of the sub-network to which the node relating to the transaction to be identified belongs, wherein the sub-network is a network acquired by partitioning a relationship network based on connectivity, the relationship network is a network built up with entities and activities relating to a plurality of transactions.

Abstract: A method of user identity verification by a server, where the server pre-configures, by use of collected user information, verification information corresponding to accounts of users in a user verification information data store, the verification information including a plurality of verification security challenges and a plurality of respective first verification answers. The method includes detecting a condition to whether initiate a user identity verification is satisfied, where an account ID of a user is obtained from the condition. The method also includes inquiring the pre-configured user verification information about verification information matching the account ID and transmitting security challenges of the inquired verification information to the client.

Abstract: An information sending method is provided. The method includes calculating a weight of an interaction setting between a first terminal device and a second terminal device, calculating a relational score based on the weight between the first terminal device and the second terminal device, the second terminal device being one or more second terminal devices, calculating a service index of the first terminal device based on the relational score, and sending information to the first terminal device based on the service index.

Abstract: A method and an apparatus for identifying a transaction risk are disclosed. The method includes obtaining risk identification information of a sub-network to which a node relating to a transaction to be identified belongs; and identifying a risk of the transaction to be identified based on the risk identification information of the sub-network to which the node relating to the transaction to be identified belongs, wherein the sub-network is a network acquired by partitioning a relationship network based on connectivity, the relationship network is a network built up with entities and activities relating to a plurality of transactions.

Abstract: A user data sharing method comprises: acquiring information of a query medium; obtaining, according to the information of the query medium, at least one user account related to the query medium and relationship information of the at least one user account from a medium network, the relationship information of the user account comprising: a strength of a relationship between the user account and the query medium and a strength of a relationship between the user account and other user accounts; constructing a local medium network by using the obtained at least one user account and relationship information of the at least one user account; determining a trusted account from the at least one user account by using the local medium network; and acquiring user data of the trusted account and outputting the user data of the trusted account as the user data corresponding to the information of the query medium.

Abstract: Multiple items of first address information are identified by a server associated with a first service provider. Each item of first address information is identified from a corresponding item of first account information provided by the first service provider. Multiple items of second address information are identified by the server. Each item of second address information is identified from a corresponding item of second account information provided by a second service provider. For each item of first address information, a determination is made, by the server, that an item of second address information matches the particular item of first address information, and a mapping relationship is established, by the server, between an item of first account information, corresponding to the particular item of first address information, and an item of second account information, corresponding to the item of second address information.