Abstract: A privacy protection method and system for financial data sharing based on federated learning are provided. In recent years, due to the restrictions of data security and privacy protection laws and regulations, it is difficult to share data across institutions or departments. In order to make data transfer and transaction between different entities can be achieved without violating the national laws on data privacy and data security, the privacy protection method and system for financial data sharing based on federated learning is provided. A privacy collection intersection technology is adopted, so that two institutions, which may have many differences in business, but most of their customer groups are the same, jointly train a learning model.

Abstract: The present disclosure provides a data maximum/minimum value (max/min) aggregation method and system for privacy protection. A Paillier cryptosystem is used to encrypt user data, so as to protect privacy and security of user health data. Further, time aggregation is implemented to help a control center obtain an overall health condition of a client in one aggregation period. By using a homomorphic property of the Paillier cryptosystem, the present disclosure implements aggregation of a max/min of privacy protection, and helps the control center obtain a max or a min of health data of the client in the aggregation period.

Abstract: Methods and systems for forming a three-dimensional (“3D”) seismic image of a subterranean region of interest is disclosed. The method includes obtaining a seismic dataset a seismic trace for each of a plurality of pairs of one source and one receiver location and obtaining a 3D travel-time cube for each source location and each receiver location. The method further includes dividing the seismic dataset into a plurality of seismic subsets composed of set of source locations, set of receiver locations a seismic trace for each pair of source and receiver location and the 3D travel-time cube for each source for each receiver location. The method still further includes transmitting, to a random-access memory block of a computer processing unit the seismic subset, and forming a seismic partial image based on the seismic subset, and determining the 3D seismic image based on a combination of the seismic partial images.

Abstract: A driving mode control method, apparatus, device, program and storage medium, which relates to the technical field of electronic control, and is for a control platform, the method includes: acquiring a location information sent by a target vehicle, wherein the location information comprises a target location; determining a status data of at least one sample vehicle pre-stored by the control platform based on the target location, wherein the sample vehicle is a vehicle which has travelled through the target location; determining a target driving mode based on the status data of the sample vehicle, and sending the target driving mode to the target vehicle, such that the target vehicle travels in the target driving mode. This disclosure enables the target vehicle to travel in the target driving mode. The driver needs not to manually switch the driving mode, and the accuracy and convenience of controlling the drive mode are improved.

Abstract: A method and an apparatus for vehicle control, a storage medium, an electronic device, and a computer program are provided. The method is applicable to a vehicle and includes: acquiring a target deceleration, if the vehicle is traveling on a road section; and performing the braking energy recovery according to the target deceleration, if the vehicle receives a brake instruction and triggers the braking energy recovery. For each vehicle of a plurality of vehicles, the target deceleration is determined by a plurality of history decelerations of each vehicle when traveling on the road section and triggering a braking energy recovery.

Abstract: Methods and systems for forming a three-dimensional (“3D”) seismic image of a subterranean region of interest is disclosed. The method includes obtaining a seismic dataset a seismic trace for each of a plurality of pairs of one source and one receiver location and obtaining a 3D travel-time cube for each source location and each receiver location. The method further includes dividing the seismic dataset into a plurality of seismic subsets composed of set of source locations, set of receiver locations a seismic trace for each pair of source and receiver location and the 3D travel-time cube for each source for each receiver location. The method still further includes transmitting, to a random-access memory block of a computer processing unit the seismic subset, and forming a seismic partial image based on the seismic subset, and determining the 3D seismic image based on a combination of the seismic partial images.

Abstract: Provided are new solid-state electrochemical cells and methods for fabricating these cells. In some examples, a solid-state electrochemical cell is assembled using a negative electrode, a positive electrode, and a gel-polymer electrolyte layer, which is disposed and provides ionic communications between these electrodes. Prior to this assembly, the negative electrode is free from electrolytes. The negative electrode is fabricated using a coating technique, e.g., forming a slurry, comprising a polymer binder and one or more negative active materials structures, such as silicon, graphite, and the like. The porosity, size, and other characteristics of the negative active materials structures and of the resulting coated later are specifically controlled to ensure operation with the gel-polymer electrolyte layer or, more specifically, high-rate charge and discharge, e.g., greater than 1 mA/cm2.

Abstract: A method and a system for heat preservation of a battery of a vehicle, and a storage medium is provided. The method includes: detecting, in response to completing the charging of the vehicle, whether a current temperature of the battery of the vehicle is lower than a preset temperature threshold value of the battery, and the temperature threshold value is configured as a lowest temperature value at which the battery is able to maintain normal performance; and controlling, when a detection result is yes, the vehicle to obtain an electrical energy from an external charging device to heat the battery, such that the battery is heated above the temperature threshold value to complete heat preservation of the battery. The method provided by the present application can heat the battery without consuming the power of the battery used for endurance mileage of the vehicle when the battery is charged.

Abstract: Provided are methods for solid state pretreatment of active materials (e.g., prelithiation of silicon monoxide) while forming treated negative active material structures. Also provided are the formed structures, negative electrodes comprising these structures, and electrochemical cells comprising these electrodes. In some examples, silicon monoxide structures are mixed with lithium hydroxide structures or some other lithium-containing structures. The mixture is heated in an inert environment to form treated negative active material structures. These treated structures comprise various lithium-containing components, some of which trap lithium. When an electrochemical cell, formed with these treated negative active material structures, is initially charged and additional new lithium ions are introduced into the negative electrodes (e.g.

Abstract: The present invention discloses a sorting control method, apparatus, platform and system, and an unmanned sorting device. The sorting control method comprises controlling an unmanned sorting device to load a plurality of packages; obtaining package list information, and sending the package list information to a sorting control platform; receiving a sorting route planned by the sorting control platform; and controlling the unmanned sorting device to traverse a package list in order to travel according to the sorting route, and sequentially unloading the plurality of packages to corresponding destination sorting ports.

Abstract: The present disclosure relates to a searchable encrypted data sharing method and system based on blockchain and homomorphic encryption, which protects security of sensitive data on the blockchain and realizes searchable and homomorphic calculation of data ciphertext. According to the present disclosure, a data owner encrypts the generated sensitive data and the keywords extracted according to the data with his own key, and then sends the encrypted transaction information to the cloud server. The cloud server verifies the identity of the data owner. If the verification succeeds, the uploaded ciphertext data is stored on a local server, and a ciphertext index, keyword ciphertext and related evidences of the data storage are uploaded to an alliance chain. The alliance chain node verifies the consistency of the uploaded transaction information, and if the verification succeeds, the transaction information is recorded.

Abstract: Described herein are composite battery electrode structures and methods of forming such structures. Composite battery electrode structures comprise active electrode material structures and polymer structures such that at least a portion of the polymer structures at least partially protrudes into some of the high capacity structures. Some of these polymer structures may be fully enclosed by the active electrode material structures. Other polymer structures may only partially extend inside the active electrode material structures. Furthermore, additional polymer structures may be bound to the external surface of the active electrode material structures. Composite battery electrode structures may be formed using low-temperature deposition techniques, such as solvent-thermal synthesis, direct chemical reduction, and electrochemical deposition. More specifically, composite battery electrode structures may be formed from a solution comprising active electrode material precursors and polymer precursors, e.g.

Abstract: Embodiments of the present disclosure disclose a video processing method, apparatus, electronic device, and storage medium. According to the present disclosure, by playing a video, in the case where the video is played to a preset progress, suspending playing the video, and displaying interactive operation guidance information, under the guidance of the interactive operation guidance information, a user watching the video possibly will perform an interactive operation corresponding to the interactive operation guidance information. If the interactive operation of the user is detected within a preset time, a pop-up window is displayed which can comprise a target object. A target page which comprises relevant information of the target object can be displayed according to an operation of the user on the pop-up window.

Abstract: An unmanned vehicle path control method, apparatus, and system queries the current position and a target position of an unmanned vehicle. Path planning according to the current position, the target position, and a heading direction indicated by landmarks arranged on two sides of a road is performed, so as to obtain a planned path having the minimum path cost. The unmanned vehicle travels forward on a predetermined side of the road and sends the planned path to the unmanned vehicle, so that the unmanned vehicle reaches the target position according to the planned path.

Abstract: The present disclosure provides a method, a device and a system for guiding an unmanned aerial vehicle to land. A navigation equipment on the unmanned aerial vehicle sends a landing instruction to the ground, so that a landing platform receiving the landing instruction displays a landing pattern. The navigation equipment scans image of the ground to identify the landing pattern, and guides the unmanned aerial vehicle to land at the landing pattern and land on the landing platform eventually. The landing platform displays a landing pattern according to the received instruction, and the unmanned aerial vehicle lands at the landing pattern, so that the unmanned aerial vehicle lands quickly and conveniently without extensive calculation.

Abstract: Provided are battery electrode structures that maintain high mass loadings (i.e., large amounts per unit area) of high capacity active materials in the electrodes without deteriorating their cycling performance. These mass loading levels correspond to capacities per electrode unit area that are suitable for commercial electrodes even though the active materials are kept thin and generally below their fracture limits. A battery electrode structure may include multiple template layers. An initial template layer may include nanostructures attached to a substrate and have a controlled density. This initial layer may be formed using a controlled thickness source material layer provided, for example, on a substantially inert substrate. Additional one or more template layers are then formed over the initial layer resulting in a multilayer template structure with specific characteristics, such as a surface area, thickness, and porosity.

Abstract: The present disclosure proposes a fixed-point training method and apparatus based on static fixed-point conversion scheme. More specifically, the present disclosure proposes a fixed-point training method for LSTM neural network. According to this method, during the fine-tuning process of the neural network, it uses fixed-point numbers to conduct forward calculation. Accordingly, within several training cycles, the network accuracy may returned to the desired accuracy level under floating point calculation.

Abstract: Provided herein are nanostructures for lithium ion battery electrodes and methods of fabrication. In some embodiments, a nanostructure template coated with a silicon coating is provided. The silicon coating may include a non-conformal, more porous layer and a conformal, denser layer on the non-conformal, more porous layer. In some embodiments, two different deposition processes, e.g., a PECVD layer to deposit the non-conformal layer and a thermal CVD process to deposit the conformal layer, are used. Anodes including the nanostructures have longer cycle lifetimes than anodes made using either a PECVD or thermal CVD method alone.

Abstract: Provided herein are nanostructures for lithium ion battery electrodes and methods of fabrication. In some embodiments, a nanostructure template coated with a silicon coating is provided. The silicon coating may include a non-conformal, more porous layer and a conformal, denser layer on the non-conformal, more porous layer. In some embodiments, two different deposition processes, e.g., a PECVD layer to deposit the non-conformal layer and a thermal CVD process to deposit the conformal layer, are used. Anodes including the nanostructures have longer cycle lifetimes than anodes made using either a PECVD or thermal CVD method alone.