Abstract: Embodiments of this specification provide methods and apparatuses for data privacy protection. An embodiment of the methods comprises receiving, by a first party from a second party, an encrypted integrated vector, determining an encrypted result vector based on the original matrix and the encrypted integrated vector, determining a data processing result based on the encrypted result vector, and sending the data processing result to the second party for the second party to obtain a multiplication calculation result of the original matrix and the n original vectors based on the data processing result.

Abstract: Embodiments of this specification provide multi-party data query methods and apparatuses for data privacy protection. One implementation of the methods includes obtaining, from each of a plurality of data owners, attribute value ciphertexts of N target objects to form a ciphertext table, disordering the ciphertext table in units of rows to obtain a disordered table, sorting, in response to a query instruction of querying sorting-related data for a target attribute item in the plurality of attribute items, attribute value ciphertexts corresponding to the target attribute item in the disordered table to obtain a target sorted table, and obtaining the sorting-related data as a query result based on the target sorted table.

Abstract: Computer-implemented methods, apparatuses and systems for obtaining data authorization are described. In an example method, a first computing node in a trusted computing center receives an authentication request from a first provider. Authentication information is returned to the first provider, where the authentication information comprises a first code hash of a first computing logic running in the first computing node. A channel establishment request sent by the first provider is received after determining that the first computing node passes trusted authentication and the first code hash passes correctness verification. A first trusted channel is established between the first provider and the first computing node according to the channel establishment request. A target encryption key is received through the first trusted channel, thereby authorization to perform computation on a target encrypted shard corresponding to the target encryption key based on the first computing logic is obtained.

Abstract: Embodiments of the present disclosure relate to multimedia processing method, apparatus, device and medium, wherein the method includes: presenting a first multimedia interface comprising first content; receiving an interface switching request of a user in the first multimedia interface; and switching from the first multimedia interface currently presented to a second multimedia interface, and presenting second content in the second multimedia interface, wherein the first content comprises the second content and other content associated with the second content, and the second content comprises a target audio and a target subtitle corresponding to the target audio.

Abstract: The present disclosure provides a video generation method and apparatus, a device, and a storage medium. The method includes: playing a first video for prompting a video taking style on a video taking page in the form of a floating window, wherein the video taking page presents a taken image preview region for presenting a taken image in preview and a video taking control; recording, in response to a triggering operation on the video taking control, the taken image in the taken image preview region to generate a second video, wherein the second video and the first video have a same style. In this way, the second video is taken by playing, on the video taking page, the first video used for prompting the video taking style, so that an ordinary user can be guided to take a high-quality video, and the video taking experience of the user is improved.

Abstract: The present invention discloses a brain machine interface decoding method based on spiking neural network, comprising: (1) constructing a liquid state machine model based on a spiking neural network, the liquid state machine model consists of an input layer, an middle layer and an output layer, wherein, a connection weight from the input layer to the middle layer is Whh, a loop connection weight inside the middle layer is Whh, a readout weight from the middle layer to the output layer is Wyh; (2) Inputting a neuron spike train signal, and training each weight with the following strategy: (2-1) Using STDP without supervision to train the connection weight Whh from the input layer to the middle layer; (2-2) Setting the loop connection weight Whh inside the middle layer by means of distance model and random connection, and obtaining a middle layer liquid information R(t); (2-3) Using ridge regression with supervision to train the readout weight Wyh from the middle layer to the output layer, and establishing a ma

Abstract: Disclosed is an express tricycle target object, falling within the field of intelligent connected vehicle (ICV) test equipment. A base plate, vehicle body support plates, two lateral support plates, a vehicle head support plate, several locking mechanisms and skins are included. The vehicle body support plates, the lateral support plates and the vehicle head support plate are assembled into the shape of the express tricycle target object via the locking mechanisms, and different parts of the skins are arranged with wave-absorbing sponges to reduce a radar cross section or with metal substances to enhance a radar cross section, to solve the problem of the insufficient coverage of traffic accident scenes in current tests of the active safety performance of ICVs.

Abstract: The present application provides a preparation method for a core-shell structured tungsten/gadolinium oxide functional fiber for X and ? ray protection, comprising: first preparing a core-shell structured tungsten/gadolinium oxide powder; preparing a W@Gd2O3/PP blended melt from the powder; and preparing a W@Gd2O3/PP composite fiber from the blended melt. The core-shell structured tungsten/gadolinium oxide functional fiber prepared by the method can play a role in synergistic protection in the aspect of radiation protection, eliminate a weak protection area, and effectively absorb secondary radiation generated by radiation. Secondly, the prepared functional fiber has the characteristics of no lead and light weight, and has good application prospects in the aspect of X and ? ray radiation protection.

Abstract: Disclosed herein are system, method, and computer program product embodiments for automated autonomous vehicle pose validation. An embodiment operates by generating a range image from a point cloud solution comprising a pose estimate for an autonomous vehicle. The embodiment queries the range image for predicted ranges and predicted class labels corresponding to lidar beams projected into the range image. The embodiment generates a vector of features from the range image. The embodiment compares a plurality of values to the vector of features using a binary classifier.

Abstract: A handheld platform includes an imaging device configured to obtain image data, a gimbal assembly coupled to the imaging device and configured to permit movement of the imaging device with respect to at least a first axis and a second axis that are non-orthogonal to each other, and a handheld support coupled to the gimbal assembly. The handheld support includes an input interface configured to receive a user input to control the imaging device or the gimbal assembly and a controller configured to generate one or more control signals based at least in part on the user input.

Abstract: A solar cell, a textured surface structure and a method for preparing the same are provided. The textured surface structure is formed on a surface of a silicon wafer, and the surface has a grid line covered area and a light-receiving exposure area. The textured surface structure includes a first textured surface formed on the grid line covered area, and a second textured surface formed on the light-receiving exposure area. The texture size of the first textured surface is larger than the texture size of the second textured surface.

Abstract: A polymorphic network control system and a polymorphic network control system method supporting terminal mobile access. A network architecture is redesigned based on the idea of separation of an identifier from a locator. In this network mode, the three-layer protocol is no longer a traditional IP message, but a message carrying a locator and an identifier. The polymorphic SDN network controller is responsible for forwarding the data packet to a destination corresponding to a destination locator. When the network location of a mobile device is changed, the transmission connection established based on the identifier will suspend communication due to the disconnection of the physical link. When the mobile device is re-accessed and a new forwarding path is established, the transmission connection can recover communication.

Abstract: Electronic devices according to embodiments of the present technology may include a battery. The devices may include a nanocrystalline foil. The devices may include a wireless charging coil seated on the nanocrystalline foil. The devices may also include an integrated circuit configured to operate the wireless charging coil in a wireless charging transmission mode.

Abstract: A centralized control system of a vehicle includes a control unit and a display screen. The control unit is capable of controlling the display screen to display instrument images and entertainment images in at least two different and switchable display modes based on at least two operating systems. In a first (instrument-focused) display mode, the instrument images and the entertainment images displayed on the display screen are both generated under control of the first operating system and an area occupied by the instrument images on the display screen is greater than an area occupied by the entertainment images on the display screen. In a second (entertainment-focused) display mode, an area occupied by the instrument images on the display screen is less than or equal to an area occupied by the entertainment images on the display screen, with at least some of the entertainment images generated by the second operating system.

Abstract: In aspects, the invention provides a hairpin oligonucleotide comprising a 3?-terminal nucleotide, wherein the sugar component of the 3?-terminal nucleotide comprises a 2?-hydroxyl and a 3?-phosphate. In aspects, the invention provides a hairpin oligonucleotide comprising a 3?-terminal nucleotide wherein the sugar position of the 3?-terminal nucleotide comprises a 2?,3?-dialdehyde oxidation product of a sugar. In aspects, the invention provides use of a hairpin oligonucleotide in developing a biomarker. In aspects, the invention provides a solid support comprising a ligand moiety and a hairpin oligonucleotide, wherein the oligonucleotide is immobilized on the solid support through binding of the affinity moiety of the hairpin oligonucleotide to the ligand moiety of the solid support.

Abstract: Accessories that can add new functionality to an electronic device. These accessories can provide additional functionality that allow for the replacement of a physical object that would otherwise be carried in addition to and separate from the electronic device. These accessories can further provide improvements, such as a reduction in size or improvement in functionality over the physical object to be replaced.

Abstract: An electronic device can include a metallic or non-metallic housing having a window therethrough, a wireless power transfer coil disposed inside the housing adjacent the window, and a non-metallic cover disposed within the window that protects the wireless power transfer coil, the non-metallic cover incorporating at least one ferromagnetic region that improves magnetic coupling of the wireless power transfer coil to a corresponding wireless power transfer coil of another device by providing a high magnetic permeability flux path. The non-metallic cover and the at least one ferromagnetic region have surface finishes selected to visually match or coordinate with the housing.

Abstract: A cloud service computing system can provide a runtime snapshot for an application in response to a request from a client computing system for the application. A cloud service computing system executes the application to an execution state and creates a snapshot that includes information indicating the application objects created by the application during execution of the application and the state of the application objects at the execution state. The snapshot further includes bytecode for the application and may also include configuration settings for the runtime under which the application was executed by the cloud service computing system to generate the snapshot. The client computing system can place the application in a ready to service state by initializing a managed heap with the bytecode and the heap objects based on information contained in the snapshot and placing the heap objects into a state indicated by information contained in the snapshot.

Abstract: Electronic devices according to embodiments of the present technology may include a battery. The devices may include a nanocrystalline foil. The devices may include a wireless charging coil seated on the nanocrystalline foil. The devices may also include an integrated circuit configured to operate the wireless charging coil in a wireless charging transmission mode.