Abstract: The present disclosure relates to a terminal positioning method, apparatus, electronic device, and storage medium. The method can be applied to at least one spatial reference device in a space where a terminal is located. At least two subspaces can be included in the space where the terminal is located that are respectively provided with at least one position sensing device. Further, the spatial reference device is a device that satisfies a preset position condition among the position sensing devices. The method can include performing a first communication interaction with a terminal to be located based on a first communication protocol, determining a first relative positioning result for positioning the terminal based on a result of the first communication interaction, and determining a target subspace where the terminal is located based on the first relative positioning result.

Abstract: The present invention relates to a high-LPI lysolecithin and methods related to the same. The high-LPI product is produced through the reaction of lecithin with a unique method using solvent, buffer/water, and phospholipase. Using the current production method, LPI content increased from 1.4% to 3.2-13.1% using regular soy lecithin as the starting material and LPC, LPE and LPA contents also increased from 5.1%, 2.0%, 1.0% to 15.8%, 14.6% and 4.4% respectively.

Abstract: The application discloses a multi-type acoustic feature integration method and system based on deep neural networks. The method and system include using labeled speech data set to train and build a multi-type acoustic feature integration model based on deep neural networks, to determine or update the network parameters of the multi-type acoustic feature integration model; the method and system includes inputting the multiple types of acoustic features extracted from the testing speech into the trained multi-type acoustic feature integration model, and extracting the deep integrated feature vectors in frame level or segment level. The solution supports the integrated feature extraction for multiple types of acoustic features in different kinds of speech tasks, such as speech recognition, speech wake-up, spoken language recognition, speaker recognition, and anti-spoofing etc.

Abstract: A audio playback control method includes: triggering switching audio of media content played on a terminal to a first audio playback device for playback in response to a distance between the terminal and the first audio playback device reaching a communicable distance for near field communication during a process of playing the media content on the terminal; and switching the audio of the media content played on the first audio playback device to a second audio playback device for playback in response to the second audio playback device being triggered to play the media content during a process of playing the media content on the first audio playback device.

Abstract: Technologies for monitoring performance of a machine learning model include receiving, by an unsupervised anomaly detection function, digital time series data for a feature metric; where the feature metric is computed for a feature that is extracted from an online system over a time interval; where the machine learning model is to produce model output that relates to one or more users' use of the online system; using the unsupervised anomaly detection function, detecting anomalies in the digital time series data; labeling a subset of the detected anomalies in response to a deviation of a time-series prediction model from a predicted baseline model exceeding a predicted deviation criterion; creating digital output that identifies the feature as associated with the labeled subset of the detected anomalies; causing, in response to the digital output, a modification of the machine learning model.

Abstract: A power supply circuit and an apparatus includes: a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, a first capacitor, and a second capacitor. In this power supply circuit, one terminal of the first capacitor is connected to one terminal of the second capacitor, the other terminal of the first capacitor is separately connected to a first electrode of the first switching transistor and a first electrode of the second switching transistor, a second electrode of the first switching transistor is connected to a second electrode of the third switching transistor, a second electrode of the second switching transistor is connected to a second electrode of the fourth switching transistor, a third electrode of the first switching transistor is connected to an output node, and a third electrode of the second switching transistor is grounded.

Abstract: The disclosed embodiments provide a system for streamlining machine learning. During operation, the system determines a resource overhead for a baseline version of a machine learning model that uses a set of features to produce entity rankings and a number of features to be removed to lower the resource overhead to a target resource overhead. Next, the system calculates importance scores for the features, wherein each importance score represents an impact of a corresponding feature on the entity rankings. The system then identifies a first subset of the features to be removed as the number of features with lowest importance scores and trains a simplified version of the machine learning model using a second subset of the features that excludes the first subset of the features. Finally, the system executes the simplified version to produce new entity rankings.

Abstract: Systems and methods monitor driver behavior for vehicular fleet management in a fleet of vehicles using driver-facing imaging device. The systems and methods herein relate generally to vehicular fleet management for enhancing safety of the fleet and improving the performance of the fleet drivers, and further relate to monitoring the operation of fleet vehicles using one or more driver-facing imaging devices disposed in the fleet vehicles for recording activities of the fleet drivers and their passengers, storing information relating to the monitored activities, selectively generating warnings related to the monitored activities, and reporting the monitored activities to a central fleet management system for use in enhancing the safety of the vehicles of the fleet and for helping to improve the performance of the fleet drivers.

Abstract: An extensible multi-precision data pipeline system, comprising, a local buffer that stores an input local data set in a local storage format, an input tensor shaper coupled to the local buffer that reads the input local data set and converts the input local data set into an input tensor data set having a tensor format of vector width N by tensor length L, a cascaded pipeline coupled to the input tensor shaper that routes the input tensor data set through at least one function stage resulting in an output tensor data set, an output tensor shaper coupled to the cascaded pipeline that converts the output tensor data set into an output local data set having the local storage format and wherein the output tensor shaper writes the output local data set to the local buffer.

Abstract: A broadcasting method includes: acquiring and analyzing a service application broadcast request; determining a broadcast message with preset content parameters according to the service application broadcast request, wherein the preset content parameters include broadcast protocol version parameter, service application parameter, role parameter that characterizes broadcast role or discovery role, broadcasting device name parameter, and broadcast configuration identification parameter; and broadcasting the broadcast message. A discovering method includes: acquiring broadcast messages with preset content parameters; and screening the broadcast messages in accordance with a target service application to obtain the broadcast message matched with the target service application. As such, mutual compatibility between multiple different broadcast and discovery techniques and service discovery in all scenes can be realized, and resource utilization can be improved.

Abstract: A method for performing a directional operation includes: obtaining an operation directing to a target operation device; determining a direction of the operation, determining the target operation device matched with the direction of the operation; and performing the operation on the target operation device.

Abstract: A brushless motor includes a stator (26) having six slots (30), and a rotor having two poles. The rotor is adapted to rotate with respect to the stator. By adopting a 6-slots-2-poles structure, the brushless motor effectively reduces operational noise due to iron loss and unbalanced pull. As a result, the working life of the motor can be improved.

Abstract: The present disclosure provides a virtual avatar live streaming method, a virtual avatar live streaming apparatus and an electronic device, which relates to the field of online live streaming technology. Firstly, an image of an anchor is acquired by an image acquiring device, then a face detection is performed on the image, and in response a facial image is detected in the image, a plurality of facial feature points of the facial image are extracted; at last, a facial state of the virtual avatar is controlled based on the plurality of facial feature points and a plurality of facial models pre-built for the virtual avatar.

Abstract: An audio field adjusting method can be applied to a stereo system having a plurality of sound boxes, and each of the plurality of sound boxes includes an Ultra-Wide Band (UWB) module. The method can include: obtaining a user position fed back by the UWB module in each of the plurality of the sound boxes; determining an audio field center position according to the user position fed back by the UWB module in each of the plurality of the sound boxes; and according to the audio field center position, adjusting an audio field position of each of the plurality of the sound boxes, such that an audio field position of the stereo system is the audio field center position.

Abstract: Embodiments of the present disclosure provide a method and an apparatus for controlling an intelligent voice control device and a storage medium. The method for controlling an intelligent voice control device is applicable for the intelligent voice control device.

Abstract: Systems and methods for robotic and exoskeleton hands are provided. An exoskeleton hand can include a flexible actuator having a cavity and a reinforcement band. The cavity can be filled with a fluid from a pressure source, forcing the actuator to deform, bend or extend. The fluid that fills the cavity as a driving force can be a gas or liquid, which can be recyclable or disposable.

Abstract: Provided by the present application are a cell necrosis inhibitor, a preparation method therefor and a use thereof; in particular, provided by the present application is an inhibitor of cell necrosis and/or human receptor-interacting protein 1 kinase (RIP1). The inhibitor has a structure as shown in the following formula I. The compound and a composition comprising same may be used to prevent and/or treat diseases involving cell death and/or inflammation.

Abstract: A digital calibration method, a device, and a true random number generator circuit are provided. In one aspect, the embodiment of the present disclosure uses the digital calibration method to calibrate compensation of a circuit to be calibrated, output of the circuit to be calibrated is sampled and tested multiple times, and whether a current test compensation calibration code value can make the circuit to be calibrated meet specified accuracy is judged based on a probability that the output result is a target result. Through sampling the output of the circuit to be calibrated multiple times, the selected compensation calibration code has higher accuracy.

Abstract: A transverse magnetic mode dielectric resonator includes a housing with a top opening, a cover disposed on an opening side of the housing, a cavity body enclosed by the cover and the housing, an inner wall of the cavity body electrically conductive, a resonant dielectric rod disposed in the cavity body, a cavity disposed inside the resonant dielectric rod, a tuning part disposed on the cover, one end of the tuning part stretched into the cavity and capable of moving up and down relative to the cavity, two ends of the resonant dielectric rod respectively soldered with the cover and a baseplate of the housing, where a part that is of the cover and that is soldered with the resonant dielectric rod is made of elastic material, and a part that is of the baseplate and that is soldered with the resonant dielectric rod is made of elastic material.