Abstract: Volume leveler controller and controlling method are disclosed. In one embodiment, A volume leveler controller includes an audio content classifier for identifying the content type of an audio signal in real time; and an adjusting unit for adjusting a volume leveler in a continuous manner based on the content type as identified. The adjusting unit may configured to positively correlate the dynamic gain of the volume leveler with informative content types of the audio signal, and negatively correlate the dynamic gain of the volume leveler with interfering content types of the audio signal.

Abstract: The present application discloses a method, system, and computer system for identifying dangling records. The method includes obtaining a set of domains, determining whether a record associated with a domain comprised in the set of domains is dangling, and in response to determining that the record associated with the domain is dangling, providing, to a registrant, a notification that the record is dangling.

Abstract: Some embodiments relate to a position monitoring device. The position monitoring device may comprise memory accessible to the processor; and a sealed housing containing a processor, a geo-spatial positioning module, a geo-spatial positioning antenna, a solar cell module, a power supply module, and a first communications module. The geo-spatial positioning module coupled to the geo-spatial positioning antenna and configured to generate geo-spatial positioning data based on an output of the geo-spatial positioning antenna that specifies a geo-spatial position of the position monitoring device. The memory may contain instructions which, when executed by the processor, cause the processor to: transmit geo-spatial positioning information from the first communications module to a device external to the position monitoring device.

Abstract: A method includes: A transmit end obtains P QAM symbols; the transmit end performs IDWT or DWT on the P QAM symbols, to obtain a first signal matrix with N rows and M columns, and transposes the first signal matrix, to obtain a transposed first transpose matrix, where P, N, and M are all positive integers; and the transmit end outputs the transposed first transpose matrix. Correspondingly, a receive end obtains a second signal matrix with M rows and N columns; the receive end transposes the second signal matrix, to obtain a transposed second transpose matrix; and performs DWT or IDWT on the second transpose matrix, to obtain P QAM symbols.

Abstract: A polypyrrole-graphene/polyurethane antifouling coating as well as a preparation method and an application thereof are provided. The polypyrrole-graphene/polyurethane antifouling coating includes component A and component B, wherein the component A mainly includes the following raw materials in parts by weight: 500 parts of group-hydrolyzable polyurethane prepolymer, 25-50 parts of bentonite, 25-50 parts of titanium dioxide, 60-120 parts of zinc oxide, 15-30 parts of talcum powder, and 15-30 parts of polypyrrole-graphene nanofiller; and the component B mainly includes the following raw materials in parts by weight: 5-7 parts of leveling agent, 5-7 parts of defoamer, 6-15 parts of chain extender, 10-25 parts of silane coupling agent, and 1-2 parts of catalyst. The two-component polyurethane coating of the present invention has relatively good adhesion, collision resistance and cracking resistance, and the antifouling property and the antifouling durability can be improved.

Abstract: A method for forecasting server demand includes collecting a historical number of scoring requests from a network using a serverless architecture. A scoring request capacity per server is determined using the historical number of scoring requests. A prediction model predicts a first future value of scoring requests for a first future time span. A current number of servers in a pool of servers handling the scoring requests. Using the prediction model, a determination of whether the current number of servers is capable of handling the first future value of scoring requests for the first future time span is made. Upon determining that the current number of servers is incapable of handling the first future value of scoring requests, one or more additional servers are warmed up. The warmed-up additional servers are added to the pool of servers prior to an arrival of the first future time span.

Abstract: Embodiments of this application provides a communication method for releasing a sidelink radio bearer (SLRB), this method can be implemented by a terminal device, the method including: the terminal device obtains an indication, the indication indicates that no Quality of Service (QoS) flow with data that is mapped to a first SLRB; and the terminal device releases the first SLRB.

Abstract: A speech recognition method includes: obtaining first sample speech data corresponding to a target user and a first reference speech recognition result corresponding to the first sample speech data; obtaining a pre-update target model; inputting the first sample speech data into the pre-update target model, and performing speech recognition by using a target speech extraction model, a target feature extraction model, and a target speech recognition model, to obtain a first model output result; obtaining a target model loss value corresponding to the target feature extraction model according to the first model output result and the first reference speech recognition result; and updating a model parameter of the target feature extraction model in the pre-update target model according to the target model loss value, to obtain a post-update target model.

Abstract: The invention provides a compound of formula I. or a salt thereof, wherein R1—R2 have any of the values described in the specification, as well as compositions comprising a compound of formula I. The compounds are useful as antiviral agents.

Abstract: Disclosed are an electrically-controlled upper handle and an imaging accessory. The electrically-controlled upper handle is configured to be mounted on the imaging device and includes a handle portion, a mounting portion and an electrically-controlled mechanism. The mounting portion is connected to the handle portion and is configured to be mounted on the imaging device. The electrically-controlled mechanism is arranged on the handle portion, is configured to be electrically connected to the imaging device, and determines the type of the imaging device according to a connection signal of the electrically-controlled mechanism and the imaging device so as to control electrically-controlled work of the imaging device.

Abstract: In an approach, a processor selects a top N features for a machine learning (ML) model; discretizes values of each continuous feature of the top N features; generates a set of combination values that each represent a unique combination of feature values in for a data record; predicts, using the ML model, a target value for each record generating predicted target values; groups the predicted target values based on the combination value for each respective record; fits a distribution for each grouping of the predicted target values associated with a respective combination value generating a set of distributions; clusters and refits the set of distributions using a clustering algorithm resulting in a set of clusters and a refitted distribution for each cluster of the set of clusters; and outputs a visualization of the refitted distribution for each cluster as a distribution curve on a graph along with the associated records.

Abstract: A biometric payment processing method includes: obtaining image data, the image data comprising a plurality of images of an organism that are successively acquired; detecting a target part in an image in the image data, the target part being a part to which a biometric payment function is bound in the organism; determining, in response to that the target part is detected from the plurality of images, a movement speed corresponding to the target part in the plurality of images; and performing a payment operation based on the target part in response to that the movement speed is less than a speed threshold.

Abstract: A method of training an audio separation network is provided. The method includes obtaining a first separation sample set, the first separation sample set including at least two types of audio with dummy labels, obtaining a first sample set by performing interpolation on the first separation sample set based on perturbation data, obtaining a second separation sample set by separating the first sample set using an unsupervised network, determining losses of second separation samples in the second separation sample set, and adjusting network parameters of the unsupervised network based on the losses of the second separation samples, such that a first loss of a first separation result outputted by an adjusted unsupervised network meets a convergence condition.

Abstract: Disclosed is a follow focus. The follow focus includes the gear box, the handwheel assembly and the follow focus assembly. The handwheel assembly includes a handwheel body and an active worm, the active worm is fixed to the handwheel body and extends toward the gear box, and the active worm is provided with a first worm gear; and a follow focus assembly includes a follow focus gear and a driven worm, the driven worm is fixed to the follow focus gear and extends toward the gear box, the driven worm is provided with a second worm gear, an angle between the active worm and the driven worm is 90°, and the first worm gear is meshed with the second worm gear.

Abstract: This application relates to the field of wireless communications technologies, and discloses an encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the first sequence is same as a second sequence or a subset of the second sequence, the second sequence comprises sequence numbers of Nmax polarized channels, and the second sequence is the sequence shown in Sequence Q11 or Table Q11, K is a positive integer, N is a positive integer power of 2, n is equal to or greater than 5, K?N, Nmax=1024; selecting sequence numbers of K polarized channels from the first sequence; and performing polar code encoding on K the to-be-encoded bits based on the selected sequence numbers of the K polarized channels.

Abstract: Embodiments of this application relate to the field of communications technologies, and provide an encoding and decoding method and apparatus, to reduce encoding/decoding complexity and improve encoding/decoding performance. In the method, a transmit device may obtain N to-be-encoded vectors. The transmit device may encode the N to-be-encoded vectors based on a polar code kernel matrix, to obtain N temporary code blocks. The transmit device may respectively perform a mask operation on target bit sequences in an (n+1)th temporary code block to an (n+M)th temporary code block and a source bit sequence segment of an nth temporary code block, to obtain M mask bit sequences. The transmit device may respectively encode the M mask bit sequences based on the polar kernel matrix, to obtain M encoded mask bit sequences. The transmit device may sum the M encoded mask bit sequences and M temporary code blocks, to obtain M first code blocks.

Abstract: Disclosed is a flashlight. The flashlight includes a rotating shaft assembly, a lamp head assembly, a control assembly and a damping member. The lamp head assembly is rotatably installed on the rotating shaft assembly; the control assembly is connected to the rotating shaft assembly; and the damping member is provided between the lamp head assembly and the rotating shaft assembly. The damping member is configured to increase a resistance to a rotation of the lamp head assembly relative to the rotating shaft assembly.

Abstract: A light guide plate and a backlight module, including: a light incident surface; a first side surface, the first side surface arranged opposite the light incident surface; a light exiting surface connecting the light incident surface and the first side surface; a bottom surface arranged opposite the light exiting surface, where the bottom surface connects with the light incident surface and the first lateral surface; a second side surface connecting the light incident surface, the first side surface, the bottom surface and the light exiting surface; a third side surface arranged opposite the second side surface, and the third side surface connects with the light incident surface, the first side surface, the bottom surface and the light exiting surface. The bottom surface has a plurality of strip-shaped concave structures, and at least one convex structure protruding outwards from the bottom surface is provided between adjacent concave structures.

Abstract: A system, method, and device for visualizing network topology are disclosed. The method includes (i) automatically generating a network topology visualization of network assets for a network, and (ii) grouping the network assets into a plurality of groupings based on a set of user selected distinct criteria.