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73 results about "Probability mapping" patented technology

Intelligent prediction model and method for postoperative complications of anesthetized patient

The invention relates to the technical field of medical information, in particular to an intelligent prediction model and method for postoperative complications of anesthetized patients, and the method comprises the steps: collecting preoperative to postoperative complete-cycle clinical data of a patient through a medical data interface; analyzing operation codes to generate risk features, extracting vital sign dynamic features, and establishing a complication probability mapping relation through a multi-modal fusion network; combining the complication probability and pharmacokinetic parameters to construct an optimization model, and solving an individualized anesthetic dosage interval by using a gradient descent algorithm; vital signs are dynamically monitored in the operation, a dose re-optimization mechanism is triggered, the infusion rate is adjusted, and a closed-loop control link is formed; and generating a visual decision report. According to the method, through deep integration of complete-cycle clinical data and multi-modal feature modeling, preoperative physiological parameters, operation coding semantic information and intraoperative vital sign dynamic modes are subjected to fusion analysis, a nonlinear mapping relation between dosage and complication probability is constructed, and the risk prediction precision and individualized adaptability are remarkably improved.
Owner:BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV

Aero-engine model Bayesian optimization method for quantizing uncertainty

The invention relates to the technical field of simulation model optimization, and discloses an aero-engine model Bayesian optimization method for quantizing uncertainty, and the method comprises the steps: building a probability mapping relation from a component index to an output response through constructing a Bayesian neural network agent model based on a probability weight coefficient; and by taking the difference between the output response and the corresponding complete machine test data as a multi-objective loss function and taking the minimization of the multi-objective loss function as an optimization objective, optimizing the component indexes by adopting a Bayesian optimization method based on a Gaussian process to obtain an optimal component index combination. Not only is a nonlinear relationship between high-dimensional parameters and simulation-test deviation accurately modeled through a neural network, but also efficient search of a parameter space is realized through a Gaussian process. The technical problems that when a traditional optimization method is used for processing the high-dimensional, strong-nonlinearity and multi-parameter coupling complex optimization problem of the aero-engine, the calculation efficiency is low, local optimum is prone to occurring, and result uncertainty cannot be quantified are solved.
Owner:AECC SICHUAN GAS TURBINE RES INST

Emotion recognition and adaptive regulation and control system driven by brain-computer interface

InactiveCN120732422AElectrotherapyPsychotechnic devicesCranial Electrical StimulationNeural regulation
The invention belongs to the technical field of brain-computer interfaces, and particularly relates to a brain-computer interface driven emotion recognition and self-adaptive regulation and control system which comprises a multichannel nerve-peripheral coupling module, an emotion intensity probability mapping module and a closed-loop nerve regulation and control current module. The multi-channel nerve-peripheral coupling module is used for realizing overall quantification of central and peripheral emotional physiology; the emotion intensity probability mapping module is used for generating continuous emotion probabilities ranging from 0 to 1 through normalization and nonlinear mapping by utilizing emotion energy and combining eye movement fatigue and electroencephalogram entropy; and the closed-loop nerve regulation and control current module is used for dynamically adjusting the transcranial electrical stimulation intensity within the safety current upper limit according to the difference value between the emotion probability and the expected target. According to the invention, the recognition precision, the response speed and the use comfort are obviously improved.
Owner:SICHUAN WUTONG TECH CO LTD

Welding quality online detection method based on machine vision

The invention discloses a welding quality on-line detection method based on machine vision, and particularly relates to the field of welding quality detection.The welding quality on-line detection method comprises the steps that multi-dimensional basic data collection is conducted, the two-dimensional form, heat distribution, micro texture, three-dimensional topological data and welding process parameters of a welding seam are obtained, and a full-dimensional original data set with time-space synchronization is constructed; performing feature decoupling on the data, respectively constructing geometric morphology, thermal, texture and three-dimensional topological feature functions, and converting unstructured data into structured feature values; integrating multi-dimensional features through a nonlinear deep fusion model, introducing thermal probability mapping, texture attention weighting and a three-dimensional residual compensation mechanism, and outputting a weld comprehensive quality value; and finally, positioning dominant defect dimensions and identifying defect types in combination with a dynamic threshold model to finish quality grading judgment. Multi-dimensional accurate detection and dynamic grading of the welding quality are achieved, different scene requirements are met, and the detection efficiency and the judgment accuracy are improved.
Owner:TAIZHOU GENTECK ELECTRIC

Automobile casting multi-equipment detection data fusion judgment method

The invention discloses an automobile casting multi-equipment detection data fusion judgment method, relates to the technical field of intelligent detection, and solves the problems that in an existing detection method, confidence output of multi-modal data is incomparable, misinformation is easily caused by evidence conflicts, and positioning offset is generated due to the fact that multi-modal registration is limited by a rigid model. According to the technical scheme, the method comprises the steps that surface images, point cloud and X-ray projection data are preprocessed, a detection response matrix is established, probability mapping is conducted on each modal score to form likelihood distribution and uncertainty representation, weighted fusion is completed in combination with a redundancy coefficient matrix, and a conflict judgment mark is generated; on the basis, hierarchical registration is executed, and a final judgment and recheck label is output; based on the technical scheme, the judgment accuracy and stability of multi-source detection data fusion of the automobile casting are remarkably improved.
Owner:XIXIA COUNTY ANXIN AUTOMOBILE BRAKE MANUFACTURING CO LTD

Deep learning-driven inspection result automatic auditing and abnormity early warning system and method

The invention discloses a deep learning-driven inspection result automatic auditing and abnormity early warning system and method. The system is composed of a data acquisition and preprocessing module, a feature extraction module, a knowledge graph module, an abnormity simulation and enhancement module, a deep learning auditing module, a dynamic abnormity scoring and probability mapping module, an early warning and feedback module and the like. According to the system, through deep coupling of a knowledge graph in feature weight, anomaly simulation and scoring calculation, cooperation of rule knowledge and a data-driven model is achieved. In the training stage, an abnormal sample expansion training set conforming to physical constraints is generated by utilizing the generative model, and joint training is carried out in the multi-modal deep learning model. In the operation stage, a dynamic anomaly scoring formula based on a Gaussian kernel and a micromappable function are adopted to calculate the anomaly probability, and early warning is carried out according to the probability. According to the method, the accuracy, robustness and interpretability of examination result auditing are remarkably improved through multi-module cooperation and a simulation generation technology.
Owner:SHANGHAI BAOSHAN DISTRICT LUODIAN HOSPITAL

Underwater Internet of Things destroy-resistant link optimization method combining self-guiding graph representation and AMF

The invention discloses an underwater Internet of Things destroy-resistant link optimization method combining self-guided graph representation and AMF. The method comprises the following steps: 1) generating a scale-free topology and a candidate link set according to node positions, residual energy and underwater acoustic channel quality; 2) inputting the topology into a self-guided graph representation learning model, and applying contrast constraint through unsupervised training to obtain robust node embedding representation; 3) on the basis of candidate link two-end embedding, combining node degree, betweenness centrality, bridge edge coefficient and link success rate to construct feature representation, and generating an existence probability matrix through a probability mapping function; 4) inputting the matrix into adaptive multi-layer filtering (AMF), reserving edges according to Top-k to form a connected skeleton, setting a hierarchical threshold according to node hierarchy and load, and maintaining approximate power law degree distribution; and 5) applying a global connectivity constraint, and outputting an optimized link structure. According to the method, link optimization can be realized without supervision labels, network connectivity and survivability are improved in an attack environment, and the method is suitable for ocean monitoring and security scenes.
Owner:ANHUI MEDICAL UNIV

Fracture network three-dimensional reconstruction and connectivity evaluation method and system based on Monte Carlo simulation

The invention discloses a fracture network three-dimensional reconstruction and connectivity evaluation method and system based on Monte Carlo simulation, and belongs to the technical field of geotechnical engineering geological exploration and digital rock mass modeling. The method comprises the following steps: firstly, acquiring a two-dimensional fracture image of a drill hole, extracting geometric parameters, and acquiring three-dimensional plane initial parameters through a dimension conversion model; introducing Monte Carlo simulation, extending the deterministic plane model into a probability distribution model, and generating a large number of plane instances; calculating statistical characteristics of distances and included angles between fracture planes, and constructing a connectivity probability mapping function to evaluate a comprehensive connectivity probability; and finally, generating a global uncertainty cloud picture based on analysis results of all fracture pairs to identify a high-uncertainty region, and proposing an optimization and supplementation drilling scheme according to the high-uncertainty region. According to the method, the fracture network is transformed from deterministic reconstruction to probabilistic evaluation, connectivity can be quantified, uncertainty can be visualized, and a scientific basis is provided for engineering exploration decision making.
Owner:CHINA UNIV OF MINING & TECH

Gallium oxide crystal storage environment monitoring system and method based on artificial intelligence

The invention discloses a gallium oxide crystal storage environment monitoring system and method based on artificial intelligence, and relates to the technical field of intelligent industrial monitoring, and the method comprises the steps: inputting a multi-source coupling data set into a space-time hypergraph model, carrying out the multi-source data coupling of a hypergraph construction layer, and carrying out the spatial dependence capture and time sequence feature extraction of a space-time convolution layer, the method comprises the steps of forming an environment parameter prediction matrix, performing damage quantification and probability mapping on a gallium oxide crystal damage image, obtaining a reference damage distribution diagram, performing coupling association on the environment prediction matrix and the reference damage distribution diagram, outputting an environment-damage weight matrix, and performing defect positioning on the reference damage distribution diagram according to the environment-damage weight matrix. And obtaining a damage sensitive area. According to the invention, through the space-time hypergraph model, the DBSCAN clustering analysis and the risk grade division strategy, the accuracy and the real-time performance of the monitoring scheme are enhanced.
Owner:SHENZHEN XINHONGTU TECH CO LTD

Prediction scene scoring method, electronic equipment and storage medium

The invention provides a prediction scene scoring method, electronic equipment and a storage medium, and relates to the technical field of intelligent driving, and the method comprises the steps: obtaining a trajectory prediction result, carrying out the shape remodeling of the trajectory prediction result, and obtaining input data, the input data comprises multi-dimensional trajectory data, modal data and dynamic agent time step joint data; extracting features of the input data to obtain a feature map; performing feature pooling on the feature map to obtain a pooling result; and performing score mapping on the pooling result to obtain a modal probability score which is used for improving the accuracy of self-vehicle scene and probability mapping.
Owner:ZHEJIANG GEELY HLDG GRP CO LTD +1

Method and system for identifying early fault section of power distribution network based on multi-dimensional feature probability mapping

The invention provides a power distribution network early fault section identification method and system based on multi-dimensional feature probability mapping, and belongs to the technical field of power system power distribution network fault detection. The method comprises the following steps: collecting zero-sequence voltage of a power distribution network bus and zero-sequence current signals of head ends of all feeder lines, and obtaining derivative signals of the zero-sequence voltage and the zero-sequence current signals; calculating the third harmonic energy of the zero-sequence current of each feeder line, and when the third harmonic energy exceeds a set threshold value, judging that the feeder line has an early fault; processing the zero-sequence current signal, and extracting an IMF1 component; calculating a correlation characteristic quantity and a dot product characteristic quantity for each section formed by the current difference values of the adjacent measuring devices based on the IMF1 component; and respectively carrying out standardized transformation on the correlation characteristic quantity and the dot product characteristic quantity, substituting the correlation characteristic quantity and the dot product characteristic quantity into a Laplacian cumulative distribution function, calculating a probability value of a fault in each section, and judging a fault section according to a set probability threshold value. The method can effectively and reliably identify the early fault section of the power distribution network.
Owner:STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1

Generative model and digital twinborn fusion aerospace equipment structure reliability test method

The invention discloses a generative model and digital twinborn fusion aerospace equipment structure reliability test method, which comprises the following steps of: firstly, establishing a physical entity model of aerospace equipment, installing a sensor at a key position of the physical entity model, and acquiring stress, strain and vibration data of the equipment in real time; secondly, establishing a digital twinborn model corresponding to a physical entity, and determining a load-response relationship of equipment; processing the actually acquired data to form a standardized load-response data set; establishing and training a probability mapping relation between load and response by utilizing a diffusion generation model, and realizing the generation of equipment response data; then defining a limit state function of reliability analysis of the equipment structure, and carrying out reliability simulation evaluation to obtain a failure probability and a reliability index of the equipment structure; and finally, acquiring equipment operation response data in real time, and dynamically updating parameters of the diffusion generation model and the digital twin model. According to the invention, the accuracy and efficiency of aerospace equipment structure reliability testing are effectively improved.
Owner:BEIHANG UNIV

Data processing method and apparatus, electronic device, computer-readable storage medium, and computer program product

A method, apparatus, and computer-readable storage medium providing data processing on at least one graphics processing unit (GPU). The method includes: acquiring sparse features of a target sample comprising first and second sparse features of different types; acquiring embeddings corresponding to first sparse features from stored embeddings of full sparse features of the first type; acquiring embeddings corresponding to second sparse features from a second GPU based on querying embeddings of full sparse features of the second type; forming embeddings corresponding to the sparse features of the target sample; performing probability mapping on the formed embeddings; generating an update instruction based on the probability mapping; and updating the embeddings of the full sparse features of the second type.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

Health assessment method, device and equipment for rotating part of vehicle running gear and medium

The invention discloses a health assessment method, device and equipment for a rotating part of a vehicle running gear, and a medium, and relates to the technical field of vehicle health management, and the method comprises the steps: obtaining a target sensitive fault feature of a to-be-assessed rotating part in the vehicle running gear in a current time period; wherein the target sensitive fault feature is a feature associated with degradation of the rotating part to be evaluated; processing the spliced target sensitive fault features by using a target state level probability mapping model to obtain target probabilities of the to-be-evaluated rotating part under each degradation state level; wherein the target state level probability mapping model is a deep neural network model constructed based on a deep belief network; and quantifying the degradation state of the to-be-evaluated rotating part according to each target probability to obtain a health index of the to-be-evaluated rotating part. According to the scheme, the degradation state of the rotating part of the vehicle running gear can be accurately evaluated.
Owner:北京唐智科技发展有限公司 +1

Method, system and equipment for calculating and evaluating space radiation field effect of long and straight control cable and medium

The invention relates to a long straight control cable space radiation field effect calculation and evaluation method, system and device and a medium. The method comprises the following steps: constructing a partial differential equation constraint model based on a cable geometric structure and electromagnetic transient characteristics; fusing an actually measured magnetic field and an additional physical rule through a physical information neural network, and generating a complete electromagnetic data set to compensate for electric field data missing; a multi-dimensional interference factor is calculated by combining time-frequency distribution characteristics, equipment sensitive parameters and cable equivalent inductance, and the radiation field effect complexity is objectively quantified; establishing a probability mapping model of interference indexes and effect states by adopting multi-dimensional Gaussian process regression to realize risk probability distribution prediction; and finally, generating a visual probability curved surface of an electric field-magnetic field plane, and identifying a high-risk area to guide electromagnetic protection optimization. According to the method, the evaluation precision is improved in a data limited scene, and a technical closed loop from multi-dimensional feature fusion to probabilistic risk early warning is realized.
Owner:XIAN UNIV OF TECH

Big data security access control method

PendingCN121098596ASecuring communicationBig data securityRisk rating
The invention discloses a big data security access control method. The method comprises the following steps: collecting multi-dimensional information of an access request, including time, place, equipment, network environment and historical behaviors, and generating a risk score in combination with a weight; and converting the risk score into a risk probability by using a probability mapping model, and dividing risk levels according to a preset threshold. And the system forms a dynamically adjustable permission set according to the basic permission of the user role and the limit permission corresponding to the risk level, and calculates a security strength index. And further combining the risk score with the security strength to generate a comprehensive risk coefficient and recording the comprehensive risk coefficient in an audit log. And when the risk coefficient exceeds a threshold value and exceeds the limit continuously for multiple times, triggering a security response mechanism, including account freezing, session blocking, alarm pushing and global strategy tightening. According to the method, real-time evaluation, fine-grained control and linkage response of big data access are realized, and the dynamic defense capability and the overall security of the system are improved.
Owner:TANGXIN TECHNOLOGY (TIANJIN) CO LTD

Fuzzy structure adaptive configuration interpretable lightweight automatic driving lane changing decision-making method and fuzzy structure adaptive configuration interpretable lightweight automatic driving lane changing decision-making system

The invention discloses an interpretable lightweight automatic driving lane changing decision method and system based on fuzzy structure adaptive configuration, and relates to the technical field of automatic driving lane changing decision, and the method comprises the steps: obtaining a six-dimensional state of a unified aperture, building an adaptive fuzzy structure for each dimension, automatically determining the precondition division according to the data distribution, and carrying out the self-adaptive configuration of a fuzzy structure. Underfitting or redundancy caused by manual setting is avoided; rules are activated and normalized, and a first-order TS linear consequent is matched to form traceable segmented approximation for a continuous state space, so that a lane changing probability source is clear, and an explanation path is clear; end-to-end learning is carried out through probability mapping and a consistent training target, so that the judgment accuracy and the output stability are improved; after training is completed, based on joint evaluation of rule activation and category deviation, only effective rules are reserved for online reasoning, the calculation scale and memory occupation are remarkably compressed, and therefore a decision link is controlled within vehicle-mounted time delay and resource constraint.
Owner:BEIJING INST OF TECH

Cross-border e-commerce customs clearance intelligent pre-declaration risk management and control method

The invention relates to the technical field of data processing, and relates to an intelligent pre-declaration risk management and control method for cross-border e-commerce customs clearance. Through the multi-dimensional data dynamic verification and automatic declaration mechanism, real-time compliance verification of customs clearance pre-declaration data is realized, the rejection rate caused by data errors is reduced, and the customs clearance period is shortened; by constructing a multi-dimensional risk scoring model of commodity compliance, transportation abnormality, document completeness and flow tax compliance and combining a risk score-rejection probability mapping table, the rejection probability of a commodity to which a target cross-border e-commerce belongs is determined, the customs clearance risk prediction accuracy is improved, and high-risk declaration can be avoided in advance; by automatically triggering data correction and resubmission for high-risk declaration and quickly releasing low-risk declaration, intelligent allocation of customs clearance resources is realized, and reduction of enterprise declaration labor cost is facilitated.
Owner:LIANYUNGANG ZUOSHANG NETWORK TECH CO LTD

A new view synthesis method based on gaussian probability distribution and feature regularization

The application provides a new view synthesis method based on Gaussian probability distribution and feature regularization, relates to the technical field of new view synthesis, and comprises the following steps: extracting a feature tensor from a preprocessed input image, performing Gaussian probability calculation based on the mean and standard deviation of the feature tensor; introducing an elastic net regularization loss to constrain the feature tensor, performing mean calculation on the Gaussian probability of the feature tensor, substituting the calculation result into a loss function, minimizing the loss function, obtaining an optimized Gaussian point set, performing multi-scale densification and pruning, and generating a new view. The application solves the technical problem that, due to overfitting in a sparse scene, the number of Gaussian points is too small and the transparency is low, which further affects the accuracy of view synthesis, and improves the modeling effect and the accuracy of view synthesis in a sparse view angle by introducing Gaussian probability mapping and feature regularization, thereby increasing efficiency and improving precision.
Owner:BEIJING INSTITUTE OF SURVEYING AND MAPPING

A ces spatial probability mapping method for mountainous city parks considering population differences

PendingCN122435059AData setAlgorithm
The application discloses a mountainous city park CES space probability mapping method considering population differences, and steps include: constructing a space feature classification system; dividing population categories according to population difference characteristics and obtaining space perception data; generating CES value space vector data and frequency data through data cleaning; generating environment layer grid data set and park boundary; performing space density interpolation to output CES value density distribution map; training and verifying using a space probability prediction model, performing probability prediction taking population categories as grouping variables, converting and standardizing mapping probability data and maximum value index to generate a CES space distribution map considering population differences; and statistically analyzing to generate a frequency feature map, a correlation diagram and a flow direction diagram. The technical scheme realizes precise mapping of CES space distribution of population differences, reveals the correlation mechanism of landscape elements and CES value, and provides scientific support for mountainous park renewal design.
Owner:CHONGQING UNIV

Method and apparatus for training artificial intelligence model information acquisition capability

This application relates to a training method and apparatus for improving the information acquisition capability of an artificial intelligence model. The method includes: determining the probability of performing different semantic enhancement modes on any first training sample based at least on first training samples and processing parameters corresponding to the artificial intelligence model; performing random probability mapping on at least one first training sample according to the probabilities corresponding to each semantic enhancement mode; determining the semantic enhancement mode corresponding to each first training sample based on the random probability mapping results; performing corresponding reconstruction processing on at least a portion of each first training sample according to the semantic enhancement mode corresponding to each first training sample to obtain second training samples; and training the artificial intelligence model based on at least one second training sample. This method can improve the model's ability to output accurate answers.
Owner:SHANGHAI XIYU JIZHI TECH CO LTD

Flexible somatosensory interaction system and method based on intent probability mapping

The invention relates to the technical field of man-machine interaction and intelligent control, in particular to a flexible somatosensory interaction system and method based on intention probability mapping. Through setting a flexible somatosensory acquisition module, an intention modeling module, a flexible-rigid mapping field construction module, a dynamic intention screening module and an execution control module, multi-modal somatosensory information of an operator is acquired, a probability distribution model of an action intention is established, and a flexible-rigid mapping field is constructed based on an information retention and minimum semantic loss principle. And the continuous action space of the human body is converted into a limited control instruction set which can be executed by the mechanical arm. The system dynamically screens an optimal control instruction by using a confidence coefficient driving mechanism under multiple candidate intentions, and realizes accurate response of a mechanical arm to the action of an operator through closed-loop feedback. The problems that in the prior art, flexible action and rigid control freedom degrees are not matched, and intention recognition is fuzzy are effectively solved.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Method and device for optimizing coupling coordination degree of complex system

PendingCN122634945AData miningComplex system
The application discloses a complex system coupling coordination degree optimization method and device, and the method comprises the following steps: acquiring a multilevel coupling parameter set in a complex system; screening a to-be-optimized parameter variable from the multilevel coupling parameter set to obtain a to-be-optimized parameter variable set; constructing a Bayesian statistical model; taking the Bayesian statistical model as a proxy model for describing a probability mapping relationship between a target function and a parameter variable; determining a sampling function; and iteratively optimizing the to-be-optimized parameter variable by using the Bayesian statistical model and the sampling function to obtain an optimized parameter. The application can improve the coupling coordination degree of the complex system and meet the requirements of stable operation and intelligent control of the complex system.
Owner:CETC BIGDATA RES INST CO LTD

Low-altitude airspace operation supervision method and system for highway maintenance inspection

The application discloses a low-altitude airspace operation supervision method and system for highway maintenance inspection, and relates to the field of traffic road maintenance inspection control.The application iteratively clusters and merges new and old crack influencing factor data, continuously optimizes mapping model parameters, and makes crack probability prediction more in line with actual road conditions.A crack probability model and an accident level model form a "prevention-emergency" double link, the former predicts crack risks, and the latter controls vehicle speed in real time, covering the whole maintenance cycle.According to crack probability mapping results, the height of unmanned aerial vehicle (UAV) inspection is automatically adjusted, high-risk road sections are preferentially investigated, and inspection efficiency is improved.The accident level model fuses vehicle dynamic speed and crack static characteristics to generate graded alarm instructions, avoiding single factor misjudgment.According to the contribution degree of influencing factors, the crack source is repaired in a targeted manner, and invalid construction is reduced.Through accurate inspection and repair priority sorting, the flight time of the UAV and the frequency of manual inspection are reduced, and maintenance costs are reduced.
Owner:CCCC PUBLIC CIVIL ENGINEERING BIG DATA INFORMATION TECHNOLOGY (BEIJING) CO LTD

New energy power system probability small interference stability analysis method based on truncated Gaussian mixture model

The invention discloses a new energy power system probability small interference stability analysis method based on a truncated Gaussian mixture model, and the method comprises the steps: firstly constructing a Gaussian mixture model based on the uncertainty of new energy power based on probability prediction; secondly, constructing segmented affine transformation from new energy power injection to a power system small interference stability index, determining a new energy power sub-region, and obtaining an analysis segmented mapping relation between the new energy power and the small interference stability index; then, proposing a discrete integral method to obtain an analytic truncated Gaussian mixture model form of new energy power condition distribution in each sub-region, and obtaining probability mapping from the new energy power to a stability index in each sub-region based on truncated invariance of a truncated Gaussian mixture model; and finally, based on probability information fusion analysis under different new energy power dimension projections, constructing power system small interference stability index complete probability distribution. The method has higher accuracy and generalization ability.
Owner:ZHEJIANG UNIV

Method and system for constructing large three-dimensional tunnel surrounding rock parameter random field model

The present disclosure provides a large three-dimensional tunnel surrounding rock parameter random field model construction method and system, relates to the tunnel surrounding rock modeling technical field, and includes: fitting and constructing a probability distribution model reflecting surrounding rock parameters; selecting multiple surrounding rock parameters as clustering features, quantitatively classifying the global geological structure in the tunnel surrounding rock, and decomposing the global tunnel model into continuous subdomains containing overlapping buffer zones; for the first subdomain started in any direction of the global tunnel model, the KL decomposition method is used for covariance matrix spectral decomposition to generate the first subdomain random field, and the random field value of the overlapping area between the subdomains is extracted as the boundary condition data of the recursive generation process; based on the boundary condition data, the conditional random field of the subsequent subdomain is generated layer by layer; the conditional random fields of each subdomain recursively generated are seamlessly spliced into the global parameter random field, the probability mapping method is used to convert the probability distribution, the cross-platform data interface engine is developed to encapsulate instructions, and the construction process of the parameter random field model is realized.
Owner:ANHUI SCI & TECH UNIV

A scene-based home linkage control method and system for a health-care robot

PendingCN122506883AImprove digging abilityimprove accuracyEngineeringGraph model
The application provides a scene-based home linkage control method and system of a health-care robot, the control method comprising: collecting multi-modal sensing data of a health-care scene, and outputting a latent mean vector and a variance vector of each time step by means of a variational autoencoder; inputting the mean vector into a probability mapping model to obtain an initial probability distribution of an atomic predicate, and generating a space-time compound predicate by fusing according to a space-time co-occurrence frequency and a weighted point mutual information; constructing an initial probability graph by taking the atomic predicate, the space-time compound predicate and a preset scene as nodes, correcting a conditional probability by combining a state uncertainty factor and a time sequence tightness factor to obtain a probability graph model, completing Bayesian inference by relying on a real-time predicate probability to obtain a scene posterior probability vector, generating an initial control point by a strategy network, and combining a control cost function neighborhood optimization to decode and output a home linkage control instruction and execute the same.
Owner:LUOYANG INST OF SCI & TECH +1

Overhead ground wire stress corrosion fracture prediction method and device based on machine learning, terminal equipment and storage medium

The invention discloses an overhead ground wire stress corrosion fracture prediction method and device based on machine learning, terminal equipment and a storage medium, and belongs to the technical field of overhead ground wire stress corrosion fracture prediction.The method comprises the steps that historical working condition time sequence data of an overhead ground wire sample is obtained, and a corresponding historical SCC value is determined; then mutual information, importance scores and principal component analysis are calculated, and a second feature and a third feature are determined; obtaining working condition time sequence data, a second characteristic value and a third characteristic value of the overhead ground wire to be predicted; calculating an SCC prediction value of each corrosion prediction model according to the working condition time sequence data, the second characteristic value and the third characteristic value; and finally, the prediction probability of corrosion fracture of the overhead ground wire to be predicted is calculated in combination with a preset probability mapping function. By implementing the stress corrosion fracture prediction method and device, the problems that in the prior art, due to the fact that stress corrosion fracture prediction is conducted through manual inspection and experience judgment, the accuracy of the prediction result is low, and efficiency is low can be solved.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID CO LTD

Geological disaster probability assessment method based on multi-source big data fusion analysis

The invention relates to the technical field of geological disaster monitoring and early warning, and discloses a geological disaster probability assessment method based on multi-source big data fusion analysis. The method comprises the steps of three-dimensional coordinate system layout and multi-point sensor acquisition, standardization, memory kernel construction, time sequence convolution fusion, anomaly recognition, probability mapping and spatial interpolation, and high-risk area output. By unifying a spatial reference system, the spatial consistency of data of each monitoring point is ensured; the whole-process data quality inspection and standardization are realized, and the dimension unification and comparability of the multi-source heterogeneous data are realized. A finite memory weight model and time sequence weighted convolution are innovatively adopted, the historical cumulative effect is comprehensively reflected, the anomaly discrimination robustness is improved, and the defect that only short-term data is used is overcome. Probabilistic mapping and feature distance-based spatial smoothing endow the risk expression with continuity and adaptivity, and realize scientific determination of regional high-risk partitions.
Owner:NUCLEAR IND JINHUA ENG EXPLORATION INSTITUTIONS

Federal learning-based education data hidden label generation method

The invention relates to the technical field of education data processing, and discloses an education data hidden label generation method based on federal learning, and the method comprises the following steps: collecting interaction frequency time sequence records, feature active indexes and coverage information of multi-source education data, and constructing a current data set; constructing a final basic batch probability mapping model based on historical data, and selecting a current basic data batch; judging whether label generation or segmentation processing needs to be carried out on the current basic data batch or not through the verification parameters; and performing segmentation processing on the data batch according to a judgment result to generate a final hidden label segmentation number. According to the method, privacy protection and co-processing of the education data are realized by utilizing a federal learning technology, the problems of label missing and non-uniform data distribution are solved through dynamic model optimization and an automatic segmentation strategy, the efficiency and accuracy of label generation are improved, and the method is suitable for intelligent processing of multi-source education data.
Owner:HANGZHOU SHUZONG TECHNOLOGY CO LTD