Abstract: A method for training a quantum neural network and a method for classifying data are disclosed in the present disclosure. The method for training the quantum neural network includes acquiring sample data and a sample category label corresponding to the sample data, performing feature extraction on the sample data using a feature extraction layer of the quantum neural network, inputting the sample feature obtained by extracting into a unitary matrix layer to obtain a unitary matrix corresponding to the sample feature, adjusting a quantum state of a first qubit based on the unitary matrix to obtain a second qubit, the quantum state of the first qubit corresponds to the sample category label; determining a quantum state fidelity between the second qubit and the first qubit using the quantum circuit and then determining a loss value.

Abstract: The disclosure provides a a privacy computing method, including that, when first computing data is obtained after corresponding computation is performed on the basis of a first sub-algorithm in a privacy algorithm on to-be-processed data, and when it is determined that the first computing data needs to be recomputed on the basis of a second sub-algorithm in the privacy algorithm, where the second sub-algorithm is stored in another privacy computing device, a proxy API corresponding to the first sub-algorithm and a proxy API corresponding to the second sub-algorithm are determined according to a pre-stored correspodance between sub-algorithms and proxy APIs. The first computing data is sent, by means of the proxy API corresponding to the first sub-algorithm, to the proxy API corresponding to the second sub-algorithm, such that the other privacy computing device performs corresponding computation on the first computing data based on the second sub-algorithm.

Abstract: The embodiments of the present application relate to the technical field of artificial intelligence. Provided are a biological feature extraction method and apparatus. Fragmentation processing is performed on a biological feature extraction model to obtain a plurality of feature extraction model fragments, and the plurality of feature extraction model fragments are respectively deployed in different nodes, thereby ensuring that model parameters are not leaked.

Abstract: The disclosure pertains to a biometric recognition method, the method comprising: receiving biometric data; performing a random transformation of low-bit data in received biometric data; randomly selecting one or more filtering algorithms to pre-process randomly transformed biometric data; and performing identity verification based on pre-processed biometric data.

Abstract: The present disclosure relates to a merchant authenticity verification system and method.

Abstract: The disclosure pertains to a biometric recognition method, the method comprising: receiving biometric data; performing a random transformation of low-bit data in received biometric data; randomly selecting one or more filtering algorithms to pre-process randomly transformed biometric data; and performing identity verification based on pre-processed biometric data.

Abstract: The invention provides an entrusted-authorization system and an entrusted-authorization method. The entrusted-authorization system comprises an accounting system, a switch module and an entrusted-authorization module, wherein the entrusted-authorization module stores entrusted-authorization parameters determined by the accounting system, the switch module is connected with the accounting system and the entrusted-authorization module for transmitting transaction request messages from the client terminal to the entrusted-authorization module for processing in case that the accounting system is unavailable, wherein the entrusted-authorization module verifies the transaction request messages according to the entrusted-authorization parameters; otherwise, the messages are sent to the accounting system for processing. The transaction request messages comprise financial account information, financial institution information, transaction-initiation institution information and transaction amount.

Abstract: A method for sample alignment is applied to a first participant system, where a first trusted execution environment is deployed at the first participant system. The method includes, in the first trusted execution environment, obtaining at least one first sample identifier of the first participant system; through the first trusted execution environment, obtaining at least one second sample identifier of the second participant system from the second trusted execution environment, where the second trusted execution environment is deployed at the second participant system; in the first trusted execution environment, determining the first initial intersection of the at least one first sample identifier and the at least one second sample identifier and performing the shuffle processing on all first target sample identifiers in the first initial intersection to obtain the first target intersection; and based on the first target intersection, determining the first sample alignment result.

Abstract: This application provides a data storage method which is applied to a data storage device and includes: acquiring a first user identification and first user data of a first user; determining, from at least two preset distributed hosts in different areas, a first identification distributed host corresponding to the first user identification and a first data distributed host corresponding to the first user data; sending the first user identification to the first identification distributed host, so that the first identification distributed host stores the first user identification, and generates and stores a first identity identification corresponding to the first user identification; receiving the first identity identification; and sending the first identity identification and the first user data to the first data distributed host, so that the first data distributed host stores them in an associated manner.

Abstract: This application provides a data storage method which is applied to a data storage device and includes: acquiring a first user identification and first user data of a first user; determining, from at least two preset distributed hosts in different areas, a first identification distributed host corresponding to the first user identification and a first data distributed host corresponding to the first user data; sending the first user identification to the first identification distributed host, so that the first identification distributed host stores the first user identification, and generates and stores a first identity identification corresponding to the first user identification; receiving the first identity identification; and sending the first identity identification and the first user data to the first data distributed host, so that the first data distributed host stores them in an associated manner.

Abstract: A transaction data processing method includes: determining one or more transaction key values and one or more transaction feature values of a to-be-processed transaction according to transaction information of the to-be-processed transaction; determining a rule union corresponding to the to-be-processed transaction according to the one or more transaction key values, the rule union including a plurality of to-be-matched rules; matching the one or more transaction feature values of the to-be-processed transaction sequentially with the plurality of to-be-matched rules in the rule union to obtain a rule matching result of the to-be-processed transaction; and performing a billing process of the to-be-processed transaction according to the rule matching result.

Abstract: The invention discloses a distributed IoT terminal system and method based on a fiber optic bus RoF. The system comprises a core application part, a pre-channel part, a transmission channel part, an acquisition field part, an acquisition terminal part and a data source. The invention adopts the principle of light-borne ROF to adapt to pan-socialization, decentralization, verticalization, refinement, full traceability, full lifecycle management and governance, instant, real-time, online, interactive and distributed IoT applications. The integrated and integrated application of the invention improves social efficiency and saves social cost. It may be integrated and integrated the application into any application systems, and realized dynamic instant, real-time, online, centimeter level positioning application. It can infer the specific location of the positioning device.

Abstract: The invention discloses a distributed IoT terminal system and method based on a fiber optic bus RoF. The system comprises a core application part, a pre-channel part, a transmission channel part, an acquisition field part, an acquisition terminal part and a data source. The invention adopts the principle of light-borne ROF to adapt to pan-socialization, decentralization, verticalization, refinement, full traceability, full lifecycle management and governance, instant, real-time, online, interactive and distributed IoT applications. The integrated and integrated application of the invention improves social efficiency and saves social cost. It may be integrated and integrated the application into any application systems, and realized dynamic instant, real-time, online, centimeter level positioning application. It can infer the specific location of the positioning device.

Abstract: The invention provides a file transmitting method and system. The file transmitting method is used for a system comprising N network file systems, N file receiving and forwarding servers, N network access servers, N client servers and N backstage servers that are in a one-to-one correspondence with the network file systems, comprising: the backstage server sends a file transmitting request to the file receiving and forwarding server, the file transmitting request comprises information on the file sending party, the file destination party and the file to be transmitted; the file receiving and forwarding server verifies the legitimacy of the file transmitting request; if legitimate, a file is transmitted between the file sending party and the file destination party; otherwise, a response that prohibits the transmitting is generated and returned to the backstage server that initiated the request. With the invention, transmission of files can be realized.

Abstract: The invention provides an entrusted-authorization system and an entrusted-authorization method. The entrusted-authorization system comprises an accounting system, a switch module and an entrusted-authorization module, wherein the entrusted-authorization module stores entrusted-authorization parameters determined by the accounting system, the switch module is connected with the accounting system and the entrusted-authorization module for transmitting transaction request messages from the client terminal to the entrusted-authorization module for processing in case that the accounting system is unavailable, wherein the entrusted-authorization module verifies the transaction request messages according to the entrusted-authorization parameters; otherwise, the messages are sent to the accounting system for processing. The transaction request messages comprise financial account information, financial institution information, transaction-initiation institution information and transaction amount.

Abstract: The invention provides a file transmitting method and system. The file transmitting method is used for a system comprising N network file systems, N file receiving and forwarding servers, N network access servers, N client servers and N backstage servers that are in a one-to-one correspondence with the network file systems, comprising: the backstage server sends a file transmitting request to the file receiving and forwarding server, the file transmitting request comprises information on the file sending party, the file destination party and the file to be transmitted; the file receiving and forwarding server verifies the legitimacy of the file transmitting request; if legitimate, a file is transmitted between the file sending party and the file destination party; otherwise, a response that prohibits the transmitting is generated and returned to the backstage server that initiated the request. With the invention, transmission of files can be realized.

Abstract: The invention provides a file transmitting method and system. The file transmitting method is used for a system comprising N network file systems, N file receiving and forwarding servers, N network access servers, N client servers and N backstage servers that are in a one-to-one correspondence with the network file systems, comprising: the backstage server sends a file transmitting request to the file receiving and forwarding server, the file transmitting request comprises information on the file sending party, the file destination party and the file to be transmitted; the file receiving and forwarding server verifies the legitimacy of the file transmitting request; if legitimate, a file is transmitted between the file sending party and the file destination party; otherwise, a response that prohibits the transmitting is generated and returned to the backstage server that initiated the request. With the invention, transmission of files can be realized.

Abstract: A data transfer system and method are provided in the present invention. Wherein, the data transfer system and method comprises a source data obtaining service module and a target table updating service module, both of which are divided into a main part and an affiliated part, and wherein the affiliated part is a dynamic function library, which can package sub-processings such as source data obtaining, data transformation and data inserting/updating. Meanwhile, the data transfer system and method can support quasi real-time data transfer tasks and real-time data transfer tasks at the same time. The data transfer system and method support multi-computer disaster tolerance and extension, and the customization of the dynamic function library can facilitate the change in the requirements of data transfer.

Abstract: The invention provides an entrusted-authorization system and an entrusted-authorization method. The entrusted-authorization system comprises an accounting system, a switch module and an entrusted-authorization module, wherein the entrusted-authorization module stores entrusted-authorization parameters determined by the accounting system, the switch module is connected with the accounting system and the entrusted-authorization module for transmitting transaction request messages from the client terminal to the entrusted-authorization module for processing in case that the accounting system is unavailable, wherein the entrusted-authorization module verifies the transaction request messages according to the entrusted-authorization parameters; otherwise, the messages are sent to the accounting system for processing. The transaction request messages comprise financial account information, financial mechanism information, transaction initiation mechanism information and transaction amount.