Abstract: Disclosed are a point cloud encoding and decoding method and device based on a two-dimensional regularization plane projection. The encoding method includes: acquiring original point cloud data; performing two-dimensional regularization plane projection on the original point cloud data to obtain a two-dimensional projection plane structure; obtaining a plurality of pieces of two-dimensional image information according to the two-dimensional projection plane structure; and encoding the plurality of pieces of two-dimensional image information to obtain code stream information.

Abstract: The disclosure belongs to the technical field of underwater operations, in particular relates to an operation system and an operation method for underwater jet trenching and cable laying. The underwater walking device is provided at a lower end of the main body; the two jetting arms is located at a front end of the main body; the jetting suction device is arranged at a rear end of the main body and includes a suction pipeline and a second jetting pipe, the suction pipeline is configured to suck sediment in the trench through the suction port before a cable settles to the bottom of the trench and to discharge the sediment to outside of the trench through the discharge port; the second jetting pipe is configured to spray a horizontal jet to scour an inner side wall and the bottom of the trench along the length direction of the trench.

Abstract: Disclosed are a point cloud encoding and decoding method and device based on a two-dimensional regularization plane projection. The encoding method includes: acquiring original point cloud data; performing two-dimensional regularization plane projection on the original point cloud data to obtain a two-dimensional projection plane structure; obtaining a plurality of pieces of two-dimensional image information according to the two-dimensional projection plane structure; and encoding the plurality of pieces of two-dimensional image information to obtain code stream information.

Abstract: A system for estimating a delivery is disclosed. The system generates delivery time predictions, and generates a confidence score for each time prediction. The system also generates a publication determination for each particular time prediction based on the confidence score associated with each particular time prediction. The publication determination indicates whether to publish the particular time prediction or to not publish the particular time prediction.

Abstract: Provided is a system for simulating urban spatial growth by coupling urban development with water resources environmental carrying capacity, including a dynamic evaluation module for a water resources carrying capacity configured to evaluate and predict a maximum scale of urban space, a identification module for a water ecological sensitive area configured to identify water ecological security patterns and determine spatial regions that need to be avoided during urban spatial growth, and a simulation module for urban land use change configured to predict urban spatial layout features under different water ecological sensitive area protection modes and urban spatial growth scales. The system, as a whole, can predict the trends in urban population, industry, and construction land changes by simulating coupling between water resources environmental carrying capacity as well as water ecological sensitive area protection characteristics and factors such as urban socio-economic development and urban land expansion.

Abstract: The present disclosure relates to methods, devices, systems, and techniques for managing semiconductor devices with stacked structures. An example semiconductor device includes a control semiconductor structure and array semiconductor structures. The array semiconductor structures are stacked along a first direction and are coupled to the control semiconductor structure. The array semiconductor structures include at least a first array semiconductor structure and a second array semiconductor structure. The first array semiconductor structure includes: a first array region; a first connection region adjacent to the first array region along a second direction perpendicular to the first direction; first bit line connection structures in the first array region; first word line contact structures extending along the first direction in the first connection region; and first word line connection structures extending along the first direction in the first connection region.

Abstract: Disclosed are a point cloud encoding and decoding method and device based on a two-dimensional regularization plane projection. The encoding method includes: acquiring original point cloud data; performing two-dimensional regularization plane projection on the original point cloud data to obtain a two-dimensional projection plane structure; obtaining a plurality of pieces of two-dimensional image information according to the two-dimensional projection plane structure; and encoding the plurality of pieces of two-dimensional image information to obtain code stream information. According to the present disclosure, the strong correlation representation of a point cloud on the two-dimensional projection plane structure is obtained, so that the spatial correlation of the point cloud is better reflected, and the encoding efficiency of the point cloud is improved. Moreover, a placeholder information map is used for assisting in encoding the depth information map, so that the encoding efficiency is further improved.

Abstract: A solar cell device includes a supporting substrate, and an epitaxial active structure that is disposed on the supporting substrate. The epitaxial active structure has a bottom surface adjacent to the supporting substrate and a top surface opposite to the bottom surface, and is formed with an isolation section that extends from the top surface to the bottom surface. A method for producing the solar cell device is also disclosed.

Abstract: An encoding method includes: obtaining original point cloud data; transforming coordinates of the original point cloud data to obtain a coordinate transformation residual; establishing a relationship between azimuth information of a point cloud and the coordinate transformation residual; determining an encoding rule for the coordinate transformation residual based on the relationship between the azimuth information of the point cloud and the coordinate transformation residual; and encoding the coordinate transformation residual according to the encoding rule, to obtain data rate information.

Abstract: Systems, devices, and methods for managing select gates in semiconductor devices are provided. In one aspect, a semiconductor device includes a first stack structure, a second stack structure, and a third stack structure. The first stack structure includes first conductive layers extending in a first region and a second region. The second stack structure is over the first stack structure along a first direction. The second stack structure includes interleaved second conductive layers and dielectric layers extending in the first region and the second region. The second stack structure includes a plurality of stairs in the second region. Each of the plurality of stairs includes a landing surface. The third stack structure is in a third region. A top surface of the third stack structure is at a level above the landing surface of an adjacent stair of the plurality of stairs along the first direction.

Abstract: Systems, methods, and software can be used to modify a software code. In some aspects, a method includes: obtaining a software code; and processing the software code to generate an output code, wherein the output code includes the software code and one or more modification codes, wherein the one or more modification codes are determined by an algorithm that is optimized according to a function of a size of the one or more modification codes and a size of the output code, wherein the size of the output code is larger than a size of the software code.

Abstract: Methods, systems, and computer-readable media for user engagement modeling for engagement optimization are disclosed. Based (at least in part) on one or more user engagement models, a user engagement modeling system determines an uplift score for a user of an Internet-accessible service. The uplift score comprises an estimated effect on one or more user engagement metrics of an incentive to interact with the service. The uplift score is determined based (at least in part) on values of the user engagement metric(s) for the user in a treatment group and values of the metric(s) for the user in a control group, in view of propensity score to be in either group. The treatment group is offered the incentive, and the control group is not offered the incentive. The system determines that the user is or is not offered the incentive based at least in part on the uplift score.

Abstract: Systems and methods for intelligent defaulting using machine learning are provided. The systems and methods may involve the use of one or more machine learning models that are used to determine a default shipment option to present to a user through a user interface associated with a product checkout page (for example, on a website or through a mobile device application). The determination of the default shipment option may be performed in two phases. A first phase may involve using user-specific historical data (for example, prior selected shipment options, order information, etc.) to determine scores associated with individual potential shipment options. The scores may indicate a probability that the user may select the individual shipment options. The individual shipment options may also be provided associated threshold values.

Abstract: A multifunctional and variable lamp sheet and lamp are provided. A light-emitting diode (LED) multifunctional light-emitting assembly of the lamp sheet includes a light-emitting region and a control region; the light-emitting region is any geometric light-emitting shape; and the light-emitting style is divided into a plurality of sub-regions connected into the control region of the lamp sheet to perform partition control on the light-emitting region. The present disclosure has the beneficial effects: The structures of existing LED-molded lamp sheets and lamp bulbs are optimized. Meanwhile, LED chips with different light-emitting colors and a control single-chip microcomputer are added, so that when the control region inputs different control signals to the corresponding sub-regions, the lamp can emit light to achieve a dynamic water flowing effect and color changing and pattern changing effects.

Abstract: An encoding method includes: obtaining original point cloud data; transforming coordinates of the original point cloud data to obtain a coordinate transformation residual; establishing a relationship between azimuth information of a point cloud and the coordinate transformation residual; determining an encoding rule for the coordinate transformation residual based on the relationship between the azimuth information of the point cloud and the coordinate transformation residual; and encoding the coordinate transformation residual according to the encoding rule, to obtain data rate information.

Abstract: Provided is a system for simulating urban spatial growth by coupling urban development with water resources environmental carrying capacity, including a dynamic evaluation module for a water resources carrying capacity configured to evaluate and predict a maximum scale of urban space, a identification module for a water ecological sensitive area configured to identify water ecological security patterns and determine spatial regions that need to be avoided during urban spatial growth, and a simulation module for urban land use change configured to predict urban spatial layout features under different water ecological sensitive area protection modes and urban spatial growth scales. The system, as a whole, can predict the trends in urban population, industry, and construction land changes by simulating coupling between water resources environmental carrying capacity as well as water ecological sensitive area protection characteristics and factors such as urban socio-economic development and urban land expansion.

Abstract: Systems, methods, and software can be used to determine whether to re-label a labeled data. In some aspects, a method includes: obtaining, by an electronic device, a set of labeled data, wherein each of the labeled data comprises a feature vector and a label; for each labeled data in the set of the labeled data: processing the labeled data to obtain a plurality of classification results by using a plurality of machine learning models, wherein each of the plurality of classification results is obtained by using a different machine learning model in the plurality of machine learning models to process the feature vector of the labeled data; and determining a label uncertainty score of the labeled data based on a difference between an average entropy score and an adjustment score; and determining, whether to re-label one or more labeled data in the set of labeled data based on the label uncertainty scores.

Abstract: A multifunctional and variable lamp sheet and lamp are provided. A light-emitting diode (LED) multifunctional light-emitting assembly of the lamp sheet includes a light-emitting region and a control region; the light-emitting region is any geometric light-emitting shape; and the light-emitting style is divided into a plurality of sub-regions connected into the control region of the lamp sheet to perform partition control on the light-emitting region. The present disclosure has the beneficial effects: The structures of existing LED-molded lamp sheets and lamp bulbs are optimized. Meanwhile, LED chips with different light-emitting colors and a control single-chip microcomputer are added, so that when the control region inputs different control signals to the corresponding sub-regions, the lamp can emit light to achieve a dynamic water flowing effect and color changing and pattern changing effects.