32results about How to "Efficient modeling" patented technology

The invention discloses a live-action three-dimensional model construction method and system, a storage medium and equipment, and belongs to the technical field of three-dimensional modeling, and the method comprises the steps: laying control points in a region needing collection, and collecting ground control point data; acquiring inclined image data by using the unmanned aerial vehicle, and performing aerial triangulation calculation on the inclined image data in combination with the ground control point data to obtain aerial triangulation encrypted point cloud data; acquiring point cloud data by using a laser scanner, registering the point cloud data in combination with ground control point data, and then preprocessing the point cloud data to obtain laser point cloud data; carrying out fusion reconstruction on the aerial triangulation encryption point cloud data and the laser point cloud data to generate a three-dimensional model; and performing fine processing on the three-dimensional model to generate a high-precision model. According to the method, the three-dimensional laser scanning technology is used for assisting oblique photogrammetry, ground control points are used for unifying coordinates and repairing missing point clouds of a blind area, the integrity of the point clouds of an oblique photogrammetry shielded area can be guaranteed, and the fineness of the model is improved.

The invention discloses an efficient regulation and control system and method for plateau low-oxygen environment damage, and relates to the technical field of human body low-oxygen damage analysis, detection and regulation and control, and the system comprises a data monitoring module, a signal screening module, a decision oxygen distribution module and a monitoring interaction module; the data monitoring module is used for acquiring a physiological state related to the plateau hypoxia adaptive capacity in real time; acquiring physiological data with high modeling value through an optimization algorithm by using a signal screening module based on test data, and constructing a discrete state space model of a physiological state; an oxygen distribution concentration decision is determined through a predictive control algorithm by utilizing a decision oxygen distribution module, so that oxygen supply regulation and control are realized; and the monitoring interaction module is used for storing, recording and displaying data, issuing an alarm and predicting dangerous conditions. Therefore, by means of the method, effective oxygen supply, blood oxygen dynamic monitoring and real-time alarming can be achieved, and health and safety of individuals in oxygen-deficient environments such as high-altitude areas and the like are guaranteed.

The invention discloses a multi-unmanned-vehicle autonomous exploration method and system for a real large-scale complex scene, and the method comprises the steps: carrying out the voxelization of a three-dimensional environment, and carrying out the detection of a leading edge point; constructing an initialized undirected passable topological graph for sharing of multiple vehicles and calculation of path distances from the multiple vehicles to a target point; obtaining the pose of the radar relative to the world coordinate system and the pose of the robot relative to the world coordinate system by using observation data of the radar and the IMU; ground radar data extracted through ground segmentation is combined with obstacle point cloud data to guarantee that the robot operates in a complex environment. A brand-new distributed task allocation method for multiple unmanned vehicles is provided, and the dispersion rate and the exploration efficiency between robots are considered; and obtaining a reachable path from the robot to the target point based on the cost function distribution. The problem that in the field of multi-unmanned-vehicle exploration, multi-unmanned-vehicle exploration based on 3D laser radar is mostly applied to a simulation environment and is difficult to deploy to a mobile robot to explore a real environment is solved.

The invention discloses a printed circuit board element placement method and device based on a traveling salesman problem and a medium, belongs to the technical field of traveling salesman problems and printed circuit boards, and aims to solve the technical problem that diversified constraint conditions and efficiency are difficult to consider when the placement sequence of traditional printed circuit board elements is optimized. According to the technical scheme, the method comprises the following steps: constructing a training data set; performing feature coding on the placement requirement of the printed circuit board element by using an encoder to obtain a coding result; decoding a coding result through a decoder based on a double-pointer network, and generating an element placement sequence meeting the priority constraint; and training the encoder-decoder architecture by adopting a near-end strategy optimization algorithm based on reinforcement learning, and finally obtaining a deep reinforcement learning model for solving the priority constraint traveling salesman problem for placing the printed circuit board element.

The invention discloses a transformer substation model construction method based on laser point cloud and visual data, and relates to the technical field of transformer substation model construction.The transformer substation model construction method based on the laser point cloud and the visual data comprises the following steps that an equipment model library is constructed based on equipment data in a transformer substation; obtaining a substation field depth prediction map by using monocular depth estimation; calibrating the substation field depth prediction map based on the point cloud data; obtaining three-dimensional model data of the substation equipment based on the calibrated substation field depth prediction map; according to the transformer substation model construction method based on the laser point cloud and the visual data, by means of monocular depth estimation and automatic processing of the point cloud data, dependence on manual modeling is reduced, and the modeling process is more efficient; the equipment model library is constructed based on the equipment data, so that high equipment precision in the model library is ensured; and the depth prediction map is calibrated by using the point cloud data, so that the accuracy of the three-dimensional model is improved.

The invention belongs to the technical field of biological feature recognition, and relates to a rice blast pathogenic gene recognition method suitable for small sample high-dimension data, the method comprises the following steps: processing collected data to obtain the expression quantity of a sample corresponding to each gene, then carrying out difference analysis to recognize a difference expression gene, and determining the expression quantity of the sample corresponding to each gene; constructing a PPI network according to the differentially expressed gene, and determining a key gene related to rice blast; and finally, constructing a CGAN-SAE deep learning model, and training a CGAN module by using the determined key gene, so that the CGAN module can generate simulated gene sample data which is difficult to distinguish from real data. And training the SAE module by using the simulated gene sample and the real sample, so that the SAE module can capture global features, and finally, further processing the extracted features through PCA to identify the core gene in the rice blast infection process. The method solves the problem of gene screening in a rice data set with a small number of samples and high dimensionality.

The invention discloses an electromagnetic transient efficient modeling method and system for an internal combustion engine and a photovoltaic bundling system, and the method comprises the steps: obtaining equipment parameters in the internal combustion engine and the photovoltaic bundling system, and building a mathematical equation; performing numerical integral discretization on the mathematical equation to obtain a discretized circuit equation, and establishing a discretized circuit model of each device; based on AC side large inductance and DC side large capacitance, the converter is decoupled, the whole DC circuit is independently solved, and an AC port is subjected to node elimination. According to the method, the direct current part and the alternating current part of the internal combustion engine and the photovoltaic bundling system are decoupled, the direct current circuit is independently calculated, the alternating current port is subjected to node elimination, the two circuits are interacted through signals, efficient modeling of the system is achieved, the calculated amount during system calculation is greatly reduced, and the calculation efficiency is improved. The electromagnetic transient simulation speed is increased; parallel processing is adopted for direct-current circuit calculation, so that simulation of a larger-scale internal combustion engine and a photovoltaic bundling system is achieved.

The application discloses a hepatitis B diagnosis index extraction method based on blood detection and complex network resilience, first, collecting blood routine, hepatitis B five items, liver function examination, blood coagulation four items, hepatitis B virus quantification, alpha-fetal protein data of patients with chronic hepatitis B, cirrhosis and hepatocellular carcinoma after onset without treatment; then extracting 25 key indexes, reassigning each index according to the liver disease diagnosis standard treatment guide and Child-Pugh score; next, calculating the correlation between indexes and setting a threshold, respectively constructing the index correlation degree network of chronic hepatitis B, cirrhosis and hepatocellular carcinoma; calculating the average degree of the network; processing the data again and calculating the mean value, fitting with neural network dynamics to obtain the fitting error; obtaining the diagnosis interval corresponding to chronic hepatitis B, cirrhosis and hepatocellular carcinoma, which is used as the diagnosis index of hepatitis B patients. The method is simple and efficient in modeling process, and is beneficial to improving the utilization rate of medical resources.

A variational autoencoder (VAE) neural network system, comprising: an encoder neural network for encoding input data items to define a posterior distribution of a set of latent variables; and a decoder neural network for generating output data items representing values ​​of the set of latent variables sampled from the posterior distribution. The system is configured for training with an objective function that includes a term that depends on the difference between the posterior distribution and the prior distribution. The prior distribution and the posterior distribution are arranged so that they cannot match each other. The VAE system can be used to compress and decompress data.

The invention relates to the technical field of water chilling units, in particular to a central air conditioner water chilling unit energy efficiency ratio prediction method based on XGBoost and LSTM, a medium and equipment, and the method comprises the following steps: S1, an initial training stage dominated by simulation data; s2, a dynamic weight adjustment stage: starting to accumulate real data along with the operation of the water chilling unit; and S3, an incremental learning and model updating stage: continuously monitoring a prediction error of the model on new real data, and when the error exceeds a threshold value or enough new data is accumulated, triggering an incremental learning mechanism. According to the method, modeling capabilities of simulation and real data are fused, and coverage and physical constraint characteristics of simulation data are effectively utilized; structure-time sequence feature fusion is realized by combining the static feature modeling capability of the XGBoost and the time sequence mode capturing capability of the LSTM; the method is suitable for long-term deployment and iterative optimization in an industrial environment.

This invention discloses a drug target affinity prediction method that integrates PPI quality and uncertainty. The method constructs a drug molecule map and a multimodal protein structure representation, and extracts multi-source features by combining the local PPI sub-map of the target protein. By calculating the protein's low-frequency level, prediction uncertainty, and PPI quality, a PPI quality-aware gating factor is generated to adaptively adjust the PPI information injection intensity, and a residual enhancement strategy is used to preserve the original protein features. Subsequently, the drug representation and the enhanced protein representation are fused using adaptive gating, and the result is input into a prediction network to output the drug-target affinity. This method effectively integrates protein function and interaction information, improves the prediction stability of low-frequency proteins and the model's generalization ability, and provides an accurate and reliable computational tool for drug screening and candidate molecule selection.

This invention discloses a video summarization method based on two-layer routed sparse attention and spatial pixel recalibration, belonging to the field of computer vision. The method includes: reading the input video and extracting frame-level feature vectors; constructing a video summarization generation model, performing channel enhancement on the frame-level feature vectors to obtain enhanced features; performing two-layer routed sparse attention and spatial pixel recalibration on the enhanced features, and fusing them to obtain fused features; inputting the fused features into an importance scoring regression network, outputting frame importance scores, and selecting frames to generate video summaries. This invention effectively fuses global dependencies and local details by combining two-layer routed sparse attention and spatial pixel recalibration, accurately identifying key segments in the video while reducing computational complexity. Experimental results based on the SumMe and TVSum benchmark datasets demonstrate that the method of this invention exhibits good performance in video summarization tasks.

The invention relates to the technical field of cranial neuroscience, and provides a model construction method, an image processing method, equipment, a medium and a product. The method comprises the following steps: acquiring representation data corresponding to a brain medical image and a classification label of the brain medical image for an Alzheimer's disease scene; sequentially constructing a plurality of processing layers under the scene of the Alzheimer's disease based on the representation data and the classification labels; constructing a Laplacian matrix corresponding to the initial classification model, constructing an objective function of the initial classification model based on the initial classification model and the Laplacian matrix, and solving through the objective function to obtain an output weight of the initial classification model; and updating the initial classification model based on the output weight to obtain a target classification model for the Alzheimer's disease scene. Through the technical scheme of the invention, efficient modeling in a small sample scene is realized, the problems that a deep learning model depends on a large number of samples and iteration time is long are avoided, and the classification efficiency is improved.

The application discloses a kind of reconfigurable intelligent surface auxiliary wireless environment modeling method based on three-dimensional Gaussian splash technology, belong to wireless communication field, this method will three-dimensional Gaussian splash technology from computer graphics field innovatively migrate to RIS auxiliary wireless communication system modeling field, the explicit parameterization thought of 3D-GS is applied to radio frequency electromagnetic field modeling, break through the limitation of traditional deep learning "black box" modeling;Adopt two-stage joint modeling framework: for the characteristics of RIS system, "TX→RIS" and "RIS→RX" cascade modeling strategy is designed, can accurately capture the electromagnetic regulation effect of RIS;With explicit physical parameterization: replace large-scale neural network weight with Gaussian parameter with clear physical meaning, realize light weight;In addition, by constructing complete differentiable rendering process, support efficient gradient descent optimization, ensure training efficiency and convergence.

The application relates to a product popular trend prediction method based on zero sample learning and belongs to the technical field of data analysis and prediction. The method comprises the following steps: acquiring image data and text data of a product and respectively converting the data into a visual feature vector and a semantic vector; generating a style label set according to the two vectors and constructing style category semantic features; acquiring time-series heat data of each style category of the product and constructing a heat evolution sequence of each style category of the product; extracting trend features of the sequence and optimizing the trend features by adopting a time guide mechanism to obtain optimized time-series trend features; constructing a weighted adjacency matrix according to clustering results of each style category of the product; performing multi-order information diffusion processing on the matrix to generate graph features; and fusing the style category semantic features, the optimized time-series trend features and the graph features to obtain comprehensive features of each style category of the product, so that a popular trend result of the product is obtained. The application improves zero sample recognition capability and product popular trend prediction accuracy.

The invention discloses a power load prediction method based on a cloud model improved Transform, and belongs to the technical field of power load prediction. A dual-path CMIT model quantifies the uncertainty of load data into fuzzy membership, entropy, hyper entropy and other characteristics by introducing a cloud model, the anti-interference capability of input data to noise is enhanced, and the power load prediction accuracy is improved. By combining an improved Transform model structure of a self-attention mechanism and dynamically capturing a complex non-linear relationship among different variables, efficient modeling of multi-dimensional load data is realized, fuzzy description characteristics are generated through a cloud model, input with randomness and fuzziness is provided, and when data distribution changes or external interference exists, the model can be used for modeling the multi-dimensional load data in real time. Compared with the prior art, the method has the advantages that high prediction precision can still be kept, and through combination of cloud model preprocessing and sequence modeling of a Transform model structure, the method can adapt to load data characteristics in different scenes and can flexibly capture periodicity, randomness and trend changes of load data.

The invention belongs to the technical field of biology, and relates to a construction method and application of a mouse exogenous gene expression model based on an adenovirus vector. The exogenous gene is delivered through the adenovirus vector, the exogenous gene is subjected to site-specific integration to the specific site of the mouse target cell by using the double recombinase, the efficiency is high, the integration site and copy number are controllable, the safety is good, various function acquired variations can be efficiently modeled, and the method can be applied to establishment of a tumor model and research of precision medical treatment.

The invention relates to the technical field of big data processing, in particular to a data model modeling method and system and a storage medium. The method comprises the following steps of obtaining an original big data set and performing standardization processing to obtain a standard big data set; performing feature automatic generation processing and regularization recursion feature screening processing on the standard big data set to obtain large data volume related optimization features; performing preliminary modeling processing and model performance optimal screening processing on the large data volume related optimization features through a decision tree, a support vector machine and a deep neural network basic algorithm to obtain a big data performance optimal model; performing hyper-parameter combination optimization selection and model optimization adjustment on the big data performance optimal model to obtain a big data optimization adjustment model; and performing feature update real-time monitoring and adaptive update adjustment optimization on the large data volume related optimization features to generate a large data adaptive adjustment model. The generalization ability of the data model can be improved.

A segmented modeling and simulation method for quantum well semiconductor optical amplifiers based on spatiotemporally staggered half-step partitioning is proposed. The method includes extracting and preprocessing parameter data of the quantum well semiconductor optical amplifier device and the quantum well electro-optic gain material; and performing stepwise segmentation of the optical amplification direction of the active region of the quantum well semiconductor optical amplifier using spatiotemporally staggered half-step partitioning. This method constructs a high-speed and efficient simulation design through novel spatiotemporally staggered half-step partitioning modeling and calculation, which can improve the efficiency of large-signal time-domain simulation calculation of devices such as quantum well semiconductor optical amplifiers and quantum well semiconductor lasers and reduce the time consumption of optimization design.

The application discloses a weather forecasting method and device, a computer program product and an electronic device. The method comprises: obtaining historical meteorological features for meteorological prediction of a to-be-predicted area; using a plurality of hierarchical transformer modules to analyze meteorological physical laws of the historical meteorological features layer by layer to obtain fused meteorological features of each layer, wherein each transformer module is used to guide an attention mechanism to focus on local meteorological features of the to-be-predicted area and its neighborhood according to a gating position encoding to obtain first global meteorological features, and correct each local meteorological feature in the first global meteorological features according to a global spatial position bias term to obtain second global meteorological features; and using a multi-scale output head module to fuse the fused meteorological features of the plurality of layers to obtain a predicted upper air field and a predicted ground field of a prediction period. The application solves the technical problem of large prediction error of an existing weather forecasting model.

This invention discloses a method for 3D environmental feature extraction and electromagnetic propagation path modeling based on neural networks, belonging to the field of channel modeling technology. The method includes: S1: acquiring wireless channel data of the target scene and corresponding 3D spatial point cloud environmental data; S2: obtaining a physical environment feature dataset for neural network training; S3: constructing a 3D environmental feature extraction model to generate implicit environmental feature representations reflecting the relationship between environmental spatial distribution and material properties; S4: constructing an electromagnetic propagation direction prediction model and a power prediction model to predict the step-by-step evolution of the electromagnetic propagation path and output electromagnetic propagation path-level characteristics. This invention solves the problems of complex and inefficient existing modeling processes, difficulty in directly utilizing measured point cloud data, and difficulty in efficiently generating multipath propagation paths. This invention improves modeling efficiency and reduces labor costs, enabling direct modeling of point cloud geometry and material properties while reducing the computational complexity of multipath path inference.

The present invention discloses a model modeling and rendering processing method based on AI technology and edge computing, which belongs to the technical field of 3D modeling. The method comprises: an edge end receives image data that needs to be modeled and rendered and transmits it to a cloud end; the cloud end performs modeling and processing on the image data through AI technology to generate a 3D scene model; the cloud end divides the 3D scene model into multiple small blocks, which are stored in the cloud end or the edge end, and the small blocks are processed and distributed to each edge end through a distributed computing framework; the edge end is selected to call a rendering engine to render the small blocks to obtain a rendered image; according to the image data and the rendered image that need to be modeled and rendered, the rendering method of the rendering engine is optimized, and then a new rendered image is obtained again; the new rendered image is transmitted to a central end, and the central end merges and iterates the processing results in sequence to form a final 3D scene model, and the final 3D scene model is displayed through a rendering processing engine, etc.

The invention discloses a three-dimensional geologic structure modeling method and system based on SH-LDM and a medium, and relates to the technical field of deep learning and geologic modeling crossing, and the three-dimensional geologic structure modeling method based on SH-LDM mainly comprises the steps: carrying out the preprocessing of original data, and obtaining a training data set and a test data set; training the multi-branch self-encoding network by using the first-stage loss function, and training the multi-condition diffusion network by using the second-stage loss function; and according to soft data and hard data of a real scene, utilizing the trained multi-branch self-encoding network and the multi-condition diffusion network to obtain a three-dimensional geologic structure generation image. By implementing the SH-LDM-based three-dimensional geologic structure modeling method and system and the medium provided by the invention, high-precision and efficient modeling of a complex non-stationary underground structure can be realized.

The present invention relates to the field of geological disaster early warning technology, and specifically to a disaster emergency early warning method, system, equipment and medium based on the Internet of Things technology. Image data of a terrain area to be monitored is collected through remote sensing images, laser radar and drone photography, and corresponding remote sensing image sets, radar data sets and drone image sets are respectively established; and physical data of geological structures in the terrain area to be monitored are collected to establish a geological structure data set; terrain features are extracted to establish a terrain feature database; geological structure features of the terrain area to be monitored are obtained to establish a geological structure feature database; a three-dimensional site model of the terrain area to be monitored is constructed; sensor data of the terrain area to be monitored is obtained based on the Internet of Things technology, and visual interaction is performed with the three-dimensional site model to establish a disaster emergency early warning platform; disaster early warning of the terrain area to be monitored is performed by real-time acquisition of remote sensing images, sensor collection data and historical disaster data.

The present disclosure belongs to the field of ground penetrating radar technology, and in particular, relates to a ground penetrating radar data sequence modeling coding method and system. The method comprises: obtaining raw radar data, intercepting the raw radar data using a sliding window, and determining a training sample; the training sample includes a plurality of window data; constructing an initial encoder neural network according to the correlation and signal characteristics between the window data in the training sample; and training the initial encoder neural network using the training sample to determine a target encoder neural network. The present disclosure can well model the correlation or statistical relationship between A-scans, and reduce coding noise.

The invention discloses an indoor line series fault arc detection method based on multi-feature fusion, and the method comprises the steps: collecting a current signal at a main line of an indoor line, carrying out the normalization preprocessing of the current signal, and extracting a time domain, a frequency domain and multiple types of features of the time domain and the frequency domain, so as to comprehensively reflect the non-stationary features of the current signal. For samples under different working conditions, redundant features are removed by using an improved feature selection algorithm in combination with Pearson correlation analysis, and a final feature set with strong discrimination capability is constructed. Furthermore, an extreme learning machine model is introduced, rapid modeling and efficient classification are achieved based on a random initialization weight and a generalized inverse solution method, and high detection precision and real-time performance can be kept under complex working conditions and noise interference. The method has the advantages of being comprehensive in feature expression, efficient in model training, high in detection accuracy and high in robustness, the missing report rate and the false report rate of the indoor line series fault arc can be effectively reduced, and the safety and the reliability of an electrical system are improved.

The embodiment of the application relates to the technical field of software engineering and artificial intelligence, and discloses a process modeling method for human-machine cooperation and related equipment, the method comprising: constructing a hierarchical recursive process model, the process model comprising a process domain layer, an activity layer and a task layer; using an eight-tuple model to formally describe each task, the eight-tuple model comprising a task identifier, an input artifact set, an execution logic, an output artifact set, a role performer, a constraint set, a cognitive level and a deterministic classification, defining four types of role performers for the process model, including a human role, an agent role, a system role and a hybrid role, and based on the four types of role performers and the eight-tuple model, rendering each activity of the process model as an activity graph on a preset workbench interface through differentiated visual lanes, and in this way, the embodiment of the application effectively realizes modeling of AI tasks under the framework of organizational system constraints and standard specifications in a human-machine cooperation scenario.

This invention discloses a lemon health analysis method, relating to the fields of intelligent agricultural monitoring and plant health diagnosis. It involves acquiring continuous images of lemon plants using a hyperspectral camera, and then using these images to detect changes in a dynamic differential spectral segmentation model. Sequence modeling is performed on the pixel-level multi-band spectral data. An adaptive motion-aware scheduler automatically suppresses loss when the proportion of motion change mask pixels exceeds a preset dizziness threshold to avoid background misjudgment, generating a pixel-level dynamic change map. This is compressed into a pathological dynamic state vector using a variational autoencoder, and end-to-end training is performed with action-conditional video prediction as the training objective. In the extrapolation phase, a recurrent dynamic model is used to perform multi-step imaginative prediction based on candidate action sequences, outputting the future evolution trajectory of the pathological dynamic state vector and generating a quantitative early warning or decision simulation report on the outbreak risk level. The system also includes change type classification and model closed-loop optimization functions.

The invention discloses a coal mine rock burst risk space-time early warning method and system based on multi-source image data fusion, a storage medium and equipment. The method comprises the following steps: 1, collecting multi-source heterogeneous data; 2, data preprocessing; 3, constructing a gridding cloud picture of each type of data; 4, constructing a rock burst early warning model of an encoder-decoder network structure based on the MSA-Unet; 5, performing model training and optimization; 6, dynamically updating the early warning area and the data; 7, performing end-to-end reasoning to generate a rock burst risk early warning cloud picture; and 8, establishing a circulating early warning mechanism taking time or footage distance as a triggering condition. Multi-source heterogeneous data is converted into unified image representation, the problem of fusion and utilization of multi-source data such as rock burst disaster geological data and micro-seismic monitoring data is solved, and early warning and assessment of rock burst danger in an advanced area of a mining working face are realized based on time-space division of the data. And space-time dynamic early warning of the rock burst risk of the coal mining working face is realized.

The invention relates to a method for predicting the refrigeration load of an industrial clean workshop, and the method comprises the steps: building a heating ventilation air-conditioning system model which comprises a room heat model, a fresh air processing unit model, a dry cooling coil model and a fan filtering unit model, so as to build an interaction relation between an air side and the room model; selecting a sensitive input parameter set influencing the refrigeration load output by the heating ventilation air-conditioning system model, obtaining missing input parameters by adopting a PID (Proportion Integration Differentiation) controller and a feedback backstepping mode, and predicting to obtain missing input parameters in any time period based on a machine learning model and training set data; after the optimal input parameter combination selected based on genetic algorithm calculation processing is input into the HVAC system model, and the cooling load output by the HVAC system model is used as the predicted value of the cooling load of the industrial clean plant, efficient and accurate modeling of the demand side HVAC system is realized, and the real characteristics of the HVAC system are captured more accurately. And the prediction precision of the refrigeration load of the industrial clean workshop is improved.