Abstract: A transaction system, comprising: a first-grade account, wherein the first-grade account is a platform-grade master account which is configured to receive external imported funds and can distribute the external imported funds to a second-grade account; the second-grade account is configured to receive the funds distributed by the first-grade account, and can distribute the received funds distributed by the first-grade account to a third-grade account; the third-grade account is configured to undertake a user-oriented transaction service; wherein when the transaction service undertaken by the third-grade account is a withdrawal service, a withdrawal amount is deducted from the third-grade account; and when the withdrawal amount deducted from the third-grade account is less than a total withdrawal amount corresponding to a current withdrawal service, the second-grade account is requested to retrieve a first residual withdrawal amount which is an amount obtained by subtracting the withdrawal amount deducted from

Abstract: A method and apparatus are provided. The method includes prior to receiving a current search term from client application of a user among plural users, obtaining historical search terms entered by the user during a first time period and, for each historical search term, one or more historical applications accessed by the user after entering the historical search term, separately obtaining feature data of the historical search terms, the one or more historical applications and candidate applications, the feature data being data combined from all of the plurality of users, training the feature data according to a mining model, and obtaining through mining using the trained feature data, for each candidate application, a recommendation term corresponding to the candidate application.

Abstract: The mobility management network element performs security protection on a paging identity of a terminal device by using a security context obtained by negotiating with the terminal device, to obtain a first paging identity, and sends a first paging message to a base station. The base station sends a second paging message to the terminal device, where the second paging message carries the first paging identity and first indication information, and the first indication information is used to indicate that the first paging identity is a security-protected paging identity. The terminal device performs security verification on the first paging identity by using the security context based on the first indication information, to obtain a second paging identity, and processing the second paging message based on the second paging identity and an identity of the terminal device.

Abstract: A method and apparatus are provided. The method includes prior to receiving a current search term from client application of a user among plural users, obtaining historical search terms entered by the user during a first time period and, for each historical search term, one or more historical applications accessed by the user after entering the historical search term, separately obtaining feature data of the historical search terms, the one or more historical applications and candidate applications, the feature data being data combined from all of the plurality of users, training the feature data according to a mining model, and obtaining through mining using the trained feature data, for each candidate application, a recommendation term corresponding to the candidate application.