Abstract: A knowledge graph stores connections among tables in a data set and queries used to extract information from the data set. The queries may be used to generate reports. The knowledge graph indicates which of the tables each query uses and indicates which of the queries is used by each table. The knowledge graph may also store schema for the tables and information describing the tables and the queries. A graph builder may generate the knowledge graph by crawling the data set and the queries and by using a query parser to determine the tables each query uses. The graph builder may automatically update the knowledge graph. The graph builder may detect data quality issues in a table of the data set. The graph builder may query the knowledge graph for the queries that use the table. The graph builder may associate notifications with the queries.

Abstract: A vehicle control system includes a control unit for vehicle control and a server which distributes map information to the control unit. The map information includes information on a first type of road whereby full or partial driving assistance of the vehicle is possible, and information on a second type whereby full or partial driving assistance of the vehicle are not possible. The server includes an output unit which transmits information on a second type of road existing in a predetermined range from a first type of road on which the vehicle is traveling, and such that the first and second types of road form a predetermined angle or less. The control unit includes a map management unit including information on the first and second types of road, and a vehicle control unit controlling the vehicle by using the information on the first and second types of road.

Abstract: A flexible Ethernet (FlexE) frame forwarding method, including receiving a first frame through a FlexE client input channel, obtaining a first channel identifier used to indicate the FlexE client input channel and a first subchannel identifier carried in the first frame, where the first subchannel identifier is used to indicate a logical subchannel of the FlexE client input channel, searching a preset forwarding table based on the first channel identifier and the first subchannel identifier to obtain a second channel identifier and a second subchannel identifier, where the second channel identifier is used to indicate a FlexE client output channel, and the second subchannel identifier is used to indicate a logical subchannel of the FlexE client output channel, and forwarding the first frame based on the second channel identifier and the second subchannel identifier.

Abstract: Embodiments of the present disclosure describe frequency detection techniques for detecting power irregularities. These irregularities may include variations or abnormalities in switched-mode power supply circuit switching behavior, power spikes, and/or output oscillations. The frequency detection techniques may compare different frequency components of the power signal to detect irregularities.

Abstract: The present disclosure discloses an exercise bicycle with a desk plate, which comprises a frame, a supporting foot, a seat and a desk plate, the frame including a first upright column to support the desk plate and a second upright column to support the seat, wherein a first lifting assembly is provided on the first upright column to connect the desk plate and the first upright column, and enables the adjustment of the upper and lower positions of the desk plate relative to the first upright column. The height of the desk plate can be adjusted by the first lifting assembly to accommodate users with different figures. It's more ergonomic since the height of the upright column supporting the desk plate can be adjusted. When packing, lower the upright column to the minimum can largely reduce the size of the package.

Abstract: A clock synchronization method includes receiving, by a receiving apparatus, a plurality of data blocks using a plurality of physical layer modules (PHYs), where the plurality of data blocks include a plurality of head data blocks, performing, by the receiving apparatus, timestamp sampling on the plurality of data blocks to generate a plurality of receipt timestamps, aligning, by the receiving apparatus, the plurality of receipt timestamps using a first receipt timestamp as a reference, generating, by the receiving apparatus, a clock synchronization packet based on the plurality of data blocks, and writing, by the receiving apparatus, a value of a second receipt timestamp into the clock synchronization packet, where the second receipt timestamp is a receipt timestamp that is of a second data block and that is determined based on the plurality of aligned receipt timestamps.

Abstract: Computing device, computer instructions and method for identifying seismic traces prone to cycle-skipping in a full waveform inversion method. The method includes receiving recorded seismic data recorded with seismic sensors over a subsurface of interest; selecting a model that describes the subsurface; calculating, based on the model and the recorded seismic data, estimated seismic data; and choosing a probabilistic measure that characterizes a relationship between the recorded seismic data and the estimated seismic data. The probabilistic measure includes at least one statistical function.

Abstract: Disclosed are an image coding and decoding methods, an image processing device, and a computer storage medium. The image coding method comprises: obtaining a dynamic range of a copy parameter of a current coding sampling value segment according to a size of a reference area; and coding the copy parameter according to the dynamic range to generate a video bitstream containing information about the size of the reference area and information about the copy parameter. The decoding method comprises: parsing a video bitstream to obtain a dynamic range of a copy parameter of a decoding sampling value segment; and decoding the copy parameter according to the dynamic range.

Abstract: An information display device includes a spatial light modulator, configured to emit a holographic three-dimensional light field to a first grating, where the holographic three-dimensional light field corresponds to at least two focal planes, the first grating, configured to deflect the holographic three-dimensional light field emitted by the spatial light modulator, so that the holographic three-dimensional light field is propagated along a first direction and transmitted into an optical waveguide, the optical waveguide, configured to receive the holographic three-dimensional light field transmitted from the first grating, and propagate the holographic three-dimensional light field in the optical waveguide, and a second grating, configured to deflect the holographic three-dimensional light field that is propagated in the optical waveguide.

Abstract: The present disclosure provides an integrated vision module component. The integrated vision module includes a bracket, a first vision module, and a second vision module. The first vision module and the second vision module are mounted on the bracket. The first vision module includes a first flexible circuit board, and a first image sensor and a second image sensor mounted on the first flexible circuit board. The second vision module includes a second flexible circuit board, and a third image sensor and a fourth image sensor mounted on the second flexible circuit board. The first image sensor and the third image sensor form a first binocular vision sensor. The second image sensor and the fourth image sensor form a second binocular vision sensor.

Abstract: The invention relates to a high-performance shielding sheet, preparation method thereof and coil module comprising the same. The high-performance shielding sheet includes at least one sheet which include: at least one shielding layer with low coercive force and low remanence formed of a soft magnetic material; and at least one adhesive layer disposed on at least one side of the shielding layer; and wherein the shielding layer includes a plurality of graphical slits, and the plurality of graphical slits divide the shielding layer into a plurality of graphical fragments; and wherein the plurality of graphical slits are filled with the adhesive layer, enabling the plurality of graphical fragments to be separated from each other and have a good insulation property. The advantages include: improving the electric charging conversion rate, increasing the charging efficiency, reducing the transmission loss, and increasing the uniformity of the electromagnetic wave transmission medium.

Abstract: A clock synchronization method includes receiving, by a receiving apparatus, a plurality of data blocks using a plurality of physical layer modules (PHYs), where the plurality of data blocks include a plurality of head data blocks, performing, by the receiving apparatus, timestamp sampling on the plurality of data blocks to generate a plurality of receipt timestamps, aligning, by the receiving apparatus, the plurality of receipt timestamps using a first receipt timestamp as a reference, generating, by the receiving apparatus, a clock synchronization packet based on the plurality of data blocks, and writing, by the receiving apparatus, a value of a second receipt timestamp into the clock synchronization packet, where the second receipt timestamp is a receipt timestamp that is of a second data block and that is determined based on the plurality of aligned receipt timestamps.

Abstract: Provided are a backplane and a display device. The backplane comprises an active area, a first binding area and a second binding area. The first binding area is detachably disposed on a side of the second binding area away from the active area, and both the first binding area and the second binding area are capable of being bonded to an external electronic assembly. By arranging two binding areas, if there is a defective product in a module process, the first binding area is detached, and the second binding area is attached to the external electronic assembly, such that the display device is repaired in the module process, thereby reducing a scrapping cost of the product.

Abstract: This application discloses a data sending method and apparatus, and a FlexE switching system. When slice packets received by a sending module include a SOP flag and a EOP flag of a same data packet, it indicates that the sending module receives a complete data packet, and immediately sends data packet slices, or sends the data packet slices after a latency of first preset duration. In this way, a stream inside the data packet is not interrupted, a data sending latency is reduced, and transmission efficiency is improved. When the slice packets received by the sending module include a SOP flag of a data packet but do not include a EOP flag of the data packet, it indicates that the sending module has not received a complete data packet, and then sends data packet slices after a latency of second preset duration longer than the first preset duration.

Abstract: A workflow-based model optimization method for vibrational spectral analysis is provided. The method includes: initializing and determining the evaluation indicator for the model in vibrational spectral analysis and the optimization object of this model, and carrying out permutation and combination on preprocessing methods and multivariate analysis methods to obtain method combinations; determining hyper-parameters within the various method combinations and corresponding hyper-parameter space combinations; inputting the training set into the various method combinations and optimizing hyper-parameters to determine optimal hyper-parameters of the method combinations; using the training set for training to obtain model parameters so as to acquire various combined models; inputting the test set into the various combined models, calculating the evaluation indicator value for the various combined models, and selecting the optimal model.

Abstract: The present disclosure provides a method and device for image coding and a method and device for image decoding, and the method includes: a representative pixel set of a coding block is constructed, and information for constructing the representative pixel set is determined; predicted values of pixel samples in the coding block are constructed, a generation manner for the predicted values including: constructing the predicted values of the pixel samples according to reconstructed pixel samples in an image region outside the coding block and pixel values of the representative pixel set; and the information for constructing the representative pixel set and information for constructing the predicted values are coded and written into a video bitstream.

Abstract: The present disclosure discloses a stationary exercise bike with a desk plate, comprising an stationary exercise bike body assembly and a desk plate assembly. In the present disclosure, the users can adjust the height of the desk plate as well as the distance to the desk plate, thus users with different heights and figures can all be accommodated. And it's convenient since all the adjustments can be done while the user sits on the exercise bicycle, and operate directly on the desk plate. Besides, the desk plate can be lifted and slid out of the exercise bicycle, and used as an independent standing table when the exercise bicycle is not in use.

Abstract: A multicolored aglet connected to a shoelace has a unit slice, a pattern layer, and a white background layer. The unit slice is formed into two aglet bodies that are respectively sheathed on two ends of the shoelace, and has a mounting portion. The mounting portion of the unit slice is stuck to an outer side of the unit slice. The pattern layer is printed on and covers the inner side of the unit slice excluding the mounting portion, and is located between the unit slice and the shoelace. The white background layer is printed on the pattern layer and is located between the pattern layer and the shoelace. A method for producing the multicolored aglet is also provided.

Abstract: A power supply method includes when detecting that a host apparatus is connected to an external apparatus via a connector, determining a maximum voltage value supported by the external apparatus, and selecting a first power supply circuit or a second power supply circuit to supply power to the external apparatus according to the maximum voltage value. A first power supply voltage value of the first power supply circuit is greater than a second power supply voltage value of the second power supply circuit.

Abstract: A planar optical waveguide based on two-dimensional grating includes an optical waveguide substrate which is a transparent plane-parallel plate, and a functional grating element which includes a two-dimensional grating having two grating directions with an angle of 60° in between. The two-dimensional grating is either protruded or recessed into the top surface of the optical waveguide substrate. The output image from a micro-projector can enter the optical waveguide and then gets projected to cover the entire area of the functional grating element, enabling a human eye to view the output image across a large eye-box.