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372 results about "Model set" patented technology

Five-axis machining center real-time thermal error compensation system based on digital twinning and medium

The invention relates to the technical field of numerical control machine tools, in particular to a five-axis machining center real-time thermal error compensation system based on digital twinning and a medium. Firstly, a data acquisition unit is used for acquiring physical actual measurement data in real time; then, the digital twin processing unit constructs a model set used for representing the thermal dynamic behavior of the five-axis machining center, and the model set is composed of a plurality of virtual thermal model members; thirdly, fusing physical measured data into the model set through a data assimilation algorithm to dynamically correct the state of each model member and predict the thermal error of the machine tool; the prospective compensation decision-making unit receives the thermal error prediction result output by the digital twinning processing unit and generates a prospective compensation instruction; and finally, the compensation execution unit issues the prospective compensation instruction to a numerical control system of the five-axis machining center for real-time adjustment. The control precision of real-time thermal error compensation of the five-axis machining center can be improved.
Owner:FORETEK SMART TECHNOLOGY (ZHEJIANG) CO LTD

Capacitor structure design optimization method and system and storage medium

The invention relates to the technical field of electrical design and intelligent optimization calculation, and discloses a capacitor structure design optimization method and system and a storage medium. The method comprises the following steps: carrying out modeling processing on capacitor structure parameters, and dividing a parameter space to obtain an initial model set; obtaining a multi-physical field simulation model according to the geometric model and the material attributes; obtaining performance indexes such as capacitance value, heat distribution and stress based on the simulation model; setting a target function and constraint conditions, and operating an optimization algorithm to obtain an optimal solution set; performing feedback control processing on an optimization result, and analyzing a convergence path to obtain a structure parameter; according to the invention, the execution efficiency of capacitor structure design optimization is improved, and the consistency and stability of the optimization process and the performance prediction result are improved.
Owner:SHENZHEN SINCERITY TECH

Dexterous hand grabbing pose generation method and system based on CVAE and Ball Query algorithms

The invention discloses a multi-fingered dexterous hand grabbing posture generation method and system based on CVAE and a Ball Query algorithm, and belongs to the technical field of robot grabbing control. The method comprises the following steps: (1) a data sampling step; (2) a data preprocessing step: carrying out standardization processing on the collected data, generating enhanced point cloud data and constructing a training data set; (3) a model training step: through a multi-scale feature extraction module, combining global semantics and local geometric features extracted by a Ball Query algorithm, generating a grabbing attitude by using a conditional variation auto-encoder, and optimizing model parameters through reconstruction loss and KL divergence; and (4) real-time deployment: integrating the trained model to a physical platform, screening candidate grabbing postures based on parallel collision detection, and realizing real-time grabbing control in combination with inverse kinematics verification. The problem that a traditional method is insufficient in generalization ability in complex object grabbing is effectively solved, and self-adaptive grabbing of unknown objects is achieved while grabbing stability is guaranteed.
Owner:HOHAI UNIV

Interactive multi-model underwater maneuvering target tracking method and system based on azimuth-pure second-order EKF

The invention discloses an interactive multi-model underwater maneuvering target tracking method and system based on a pure azimuth second-order EKF. The method comprises the following steps: establishing a discrete state space model of a pure azimuth target tracking system; performing second-order linearization on the pure azimuth measurement model; calculating mixed input of a sub-filter corresponding to each model in the model set of the interactive multi-model algorithm; estimating a target state through parallel filtering of the azimuth-pure second-order EKF sub-filter corresponding to each model in the model set; updating the probability of each model in the model set; and combining the estimation results of all the sub-filters to obtain a final estimation result of the target state. According to the method, the target tracking precision can be improved, the problem of highly nonlinear measurement of the UUV on a target detection and tracking system through a passive sonar is effectively solved, good real-time performance is achieved, and real-time tracking of the UUV on the motion state of the underwater maneuvering target is achieved through adaptive matching of the real motion of the target through the interactive multi-model algorithm.
Owner:HARBIN ENG UNIV

Building collision detection method based on BIM cooperative multi-agent reinforcement learning

The invention discloses a building collision detection method based on BIM cooperative multi-agent reinforcement learning, and belongs to the technical field of building engineering. The method comprises the following steps: firstly, acquiring geometric data and pipeline distribution information from a preset building information model, and determining model block granularity through analysis to obtain a sub-model set; then, a multi-agent system is adopted to distribute monitoring responsibilities, edge geometrical shape data and physical connection point locations are extracted, potential conflict areas with overlapped boundaries are judged, and a collision probability distribution diagram is generated; exchanging real-time data by setting an information synchronization period between intelligent agents to obtain local conflict distribution details, introducing real-time change data to train the intelligent agents by adopting a reinforcement learning algorithm, and updating a monitoring priority and a cooperative action sequence; and if the conflict points which are not solved still exist, local collision detection is carried out by adopting a distributed computing framework, and finally, efficient and accurate building information model collision detection is realized by adaptively adjusting sub-model division and task allocation rules.
Owner:CHINA MCC17 GRP CO LTD

Group consensus large model illusion reduction method based on multi-model question

The invention relates to a multi-model-question-based group consensus large model illusion reduction method, which comprises the following steps of: screening a Top-N model from a candidate model set according to a multi-dimensional comprehensive scoring result, and executing full-combination bidirectional knowledge distillation on the Top-N model to obtain an initial model group, loading a plurality of domain knowledge bases for each model in the initial model group to carry out domain self-adaptive fine tuning, and constructing to obtain a group model set; giving a user question, triggering a plurality of fine-tuned field expert models in the group model set to perform parallel reasoning to generate an initial answer, performing iterative optimization by constructing a question set, generating a question instruction and updating the answer, and calculating the similarity of group answers by adopting a mixed kernel function in the iterative optimization process to obtain a group answer set; and when the similarity and the stability reach preset threshold values at the same time or reach the maximum number of iterations, stopping iteration and outputting a result. Compared with the prior art, the method has the advantages of high answering accuracy, high field adaptability and the like.
Owner:SHANGHAI JIAOTONG UNIV +1

Particle mass transfer characteristic prediction method and system based on machine learning algorithm

The invention discloses a particle mass transfer characteristic prediction method and system based on a machine learning algorithm, and relates to the technical field of particle movement in a multiphase flow system. The method comprises the following steps: constructing a bidirectional coupling numerical model, simulating a particle stirring process of a stirring tank by using the bidirectional coupling numerical model, and analyzing particle mass transfer characteristics and motion characteristics; constructing a machine learning model set, determining a neural network model, training the neural network model, and predicting the behavior of particles in the stirring tank by using the trained neural network to obtain a predicted value of the mass transfer coefficient of the stirring tank; and carrying out combined analysis on the analysis result of the interaction force between the particles and the fluid and the predicted value of the mass transfer coefficient of the stirring tank to obtain an inter-phase mass transfer rule in the stirring tank. The problems that the strong nonlinearity of the stirring tank is difficult to analyze, the mixing efficiency in the solid-liquid suspension process is low, the real-time performance based on dynamic model regulation and control is poor, and industrialization cannot be completely adapted are solved.
Owner:JINAN INSTITUTE OF SUPERCOMPUTING TECHNOLOGY

Determining and selecting prediction models over multiple points in time using test data

Techniques for model evaluation and selection are provided. A plurality of models trained to generate predictions at each of a plurality of intervals is received, and a plurality of model ensembles, each specifying one or more of the plurality of models for each of the plurality of intervals, is generated. A test data set is received, where the test data set includes values for at least a first interval of the plurality of intervals and does not include values for at least a second interval of the plurality of intervals. A first model ensemble, of the plurality of model ensembles, is selected based on processing the test data set using each of the plurality of model ensembles.
Owner:INTERNATIONAL BUSINESS MACHINE CORPORATION

Efficient optimization selection and model adaptation method and system based on LoRA and MoE technologies

The invention discloses an efficient optimization selection and model adaptation method and system based on LoRA and MoE technologies, and the method comprises the steps: firstly, constructing a LoRA module pool for various models and vertical field data sets according to different field models and data set features, so as to rapidly screen and call adaptation models in similar tasks; secondly, based on downstream task description, hidden layer features and confusion, performing coarse-grained LoRA selection from a LoRA module pool; and then, by using the performance characteristics and the single LoRA weight distance, further screening a fine-grained LoRA module from the LoRA modules selected from the coarse-grained LoRA modules based on diversity. And finally, activating the selected LoRA module by adopting a Top-k strategy based on the MoE architecture, and finally determining the LoRA module which is most adaptive to the downstream task in combination with performance feedback after integration with the basic model. According to the method, a large number of LoRA modules can be effectively constructed, the module most adaptive to the downstream task is selected, and the accuracy of the model in processing tasks such as mathematical reasoning is remarkably improved.
Owner:ZHEJIANG UNIV OF TECH

House quality detection method and system based on live-action three-dimensional model

The invention relates to the technical field of image processing, and discloses a house quality detection method and system based on a live-action three-dimensional model. The method comprises the following steps: converting an OSGB format live-action three-dimensional building model into a body coordinate system and carrying out quality evaluation, carrying out semantic segmentation on a standardized model to obtain a component geographic entity set, establishing an independent local coordinate system of each component to form a single three-dimensional model set, generating a multi-view projection feature image set based on a normal vector distribution planning view angle, and carrying out multi-view projection on the single three-dimensional model set. And detecting defects by adopting a 3D-YOLO-BuildingDefect algorithm, and carrying out inverse transformation to obtain three-dimensional space defect distribution and a quality grade evaluation result. The technical problems that a traditional two-dimensional detection method is insufficient in spatial positioning precision, incomplete in detection coverage rate and insufficient in geometric information utilization are solved, and the spatial positioning accuracy of house quality detection and the comprehensiveness of defect recognition are improved.
Owner:贵州省测绘产品质量监督检验站(贵州省测绘仪器计量检定站 贵州省测绘行业特有工种职业技能鉴定站)

Method of and system for performing meta-predictions using forecasting models

There are provided methods, systems, and non-transitory storage mediums for performing a meta-prediction of time series by using a set of forecasting models each associated with a forecasting theme. Time series data is received, and a set of forecast signals is generated. At least one signal and feature processing model generates a set of features. A meta-learner having been trained on historical time series data generates, based on the time series data and the set of features, a set of weights for the set of forecasting models. A meta-prediction is generated by using the set of features and forecast signals. Implementations may use combinations of endogenous and exogenous data, latent space transformations and generate interpretations and explanations for the meta-prediction.
Owner:LAPLACE INSIGHTS SOFTWARE INC

Dynamic scheduling reasoning method based on hybrid expert model and related equipment

The invention discloses a dynamic scheduling reasoning method based on a hybrid expert model and related equipment, and the method comprises the steps: determining a to-be-reasoned hybrid expert model which comprises a plurality of expert sub-models; performing nested weight quantization processing on the plurality of expert sub-models to obtain a quantized sub-model set; in response to an inference task, performing routing activation processing on the quantized sub-model set to obtain an activated sub-model set; performing dynamic bit width selection processing on the activation sub-model set according to the reasoning task to obtain an initial sub-model set; performing bit width sensing reordering processing on the initial sub-model set to obtain a target sub-model queue; and performing execution processing on the reasoning task according to the target sub-model queue to obtain a reasoning result. The embodiment of the invention can improve the efficiency of model reasoning, and can be widely applied to the technical field of artificial intelligence.
Owner:THE HONG KONG UNIV OF SCI & TECH +1

Urban spatial evolution prediction system fusing multi-modal data

The invention relates to the field of city planning, and discloses a city spatial evolution prediction system fusing multi-modal data, and the system comprises a data preprocessing and multi-modal knowledge graph construction module which is used for configuring a knowledge graph ontology architecture and preprocessing multi-source city data; establishing a multi-modal knowledge graph based on the preprocessed multi-source city data and the knowledge graph ontology architecture; the model setting module is used for configuring a multi-modal representation learning model; the data integration module is used for a multi-modal representation learning model and performing deep integration on multi-modal data in a vector space to obtain vector representation with remote sensing and streetscape semantic information; and the knowledge reasoning and predicting module is used for performing knowledge reasoning on the missing part in the multi-modal knowledge graph based on the vector representation so as to predict the urban spatial evolution event. The urban spatial evolution event prediction can be realized, and the problem that the remote sensing image and the streetscape image are difficult to be deeply fused is effectively solved.
Owner:NANJING UNIV

Heat supply digital twin modeling method and system based on U3D engine and medium

The invention provides a heat supply digital twin modeling method and system based on a U3D engine and a medium. The method comprises the steps that a historical static data set and a historical dynamic data set are obtained for preprocessing, a historical static optimized data set and a historical dynamic optimized data set are obtained, a U3D engine is combined with a preset parameterized component library to conduct heat supply digital twinning model construction, initialization is conducted based on the historical static data set, and a heat supply digital twinning model is obtained. Obtaining an initial heat supply digital twinborn model, generating an LOD model set with different precisions through an LOD rendering method, inputting the historical dynamic optimization data set into the initial heat supply digital twinborn model for processing, obtaining a simulation data set and equipment operation state evaluation data, and evaluating the qualified state of the model through threshold comparison; according to the method, data security fusion is realized through the block chain, the hydraulic and thermal coupling model is constructed by using the U3D engine, and predictive maintenance and multi-objective optimization are realized through an intelligent algorithm, so that intelligent construction of the heat supply word twinborn model is realized.
Owner:BEIJING HONGFENG ZHIKONG TECH CO LTD

Ore body three-dimensional modeling method and device

The invention discloses an ore body three-dimensional modeling method and device, and relates to the technical field of three-dimensional modeling. The method includes the following steps that geometric feature parameters of an ore body to be monitored are obtained, a three-dimensional boundary model is constructed, and the surface is divided into a plurality of equal-size grids; collecting point cloud data of the topographic surface of the ore body, mapping the point cloud data into a grid, analyzing the point cloud data through different modeling methods, generating a plurality of three-dimensional ore body structure models, and preferably forming a model set; coupling and analyzing the structural complexity, and screening out an information comparison grid; calculating accumulated differences between the point cloud surface features and the model features, and selecting the model with the minimum accumulated difference as a target ore body three-dimensional model; in combination with real-time mining position information, a construction influence range is determined as a monitoring area, the local structure of the target ore body model is dynamically updated by obtaining vibration information and area point cloud data of the monitoring area, the targets of real-time monitoring and dynamic management of the ore body are achieved, and mining safety and efficiency are improved.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

A method for correcting clock drift

Described herein is a computer implemented method for correcting for clock drift of a system clock in a signal sampling device comprising the system clock and configured to sample a signal in real time, the method comprising: obtaining data relating to an environmental parameter of an environment of the signal sampling device; matching the data relating to the environmental parameter to an environmental scenario; selecting, from a model set, a model tagged with the matched environmental scenario; and correcting for clock drift of the system clock using the selected model. Also described herein is a method for preparing a model set for clock drift correction, a sampling device, and a computer implemented method for correcting for clock drift of the system clocks of an array of signal sampling devices.
Owner:REFLECTION MARINE NORGE AS

Construction method of high-entropy alloy mechanical property prediction model

PendingCN120508915AAnalogue computationData set
The invention discloses a construction method of a high-entropy alloy mechanical property prediction model, which comprises the following steps: constructing a high-entropy alloy model set, namely defining proportional distribution of high-entropy alloy components, determining component structures, and enabling one group of component structures to correspond to one high-entropy alloy model; performing force field parameter setting stable configuration on the high-entropy alloy model; simulating and acquiring mechanical characteristics of the high-entropy alloy model through a stretching process; obtaining a multi-scale feature data set; the multiple scales comprise environment features, reference features and analog calculation features; performing feature screening on the multi-scale feature data set to obtain a sample data set; defining a plurality of regression machine learning models; and training and verifying the regression machine learning model by adopting the sample data set, selecting an optimal regression machine learning model, and constructing a mechanical property prediction model. According to the technical scheme, the limitation of a traditional scheme can be broken through, the calculation efficiency and the prediction credibility are improved, the new material research and development period is remarkably shortened, and the experiment cost is reduced.
Owner:GUIZHOU UNIV

Micro-amplitude tectonic seismic exploration detection method and system based on pre-stack depth migration

The invention relates to the technical field of oil-gas exploration, in particular to a micro-amplitude structure seismic exploration detection method and system based on pre-stack depth migration, and the method comprises the steps: generating an equivalent speed model set, calculating speed uncertainty data, probabilistically detecting a micro-amplitude structure, and fusing and displaying a result. Compared with the prior art that an absolutely correct speed model is blindly pursued, but the influence of model errors on tiny structure recognition cannot be overcome finally, the method has the advantages that the speed model errors are converted into valuable detection signals from interference needing to be minimized; by actively generating multiple sets of global equivalent speed models and analyzing the uncertainty of the speed models, the most unstable areas in the modeling process become direct evidences for indicating the existence of the micro-amplitude structure, normal form transfer from error elimination to error utilization is realized, and the detection capability of the micro-amplitude structure is remarkably improved.
Owner:KENENG TUOXIN (BEIJING) TECHNOLOGY CO LTD

Model cooperative processing method and device, electronic equipment and computer storage medium

The invention provides a model cooperative processing method and device, electronic equipment and a computer storage medium, and relates to the technical fields of artificial intelligence, natural language processing, computer vision and the like. According to the specific implementation scheme, to-be-processed information in an agricultural scene is acquired; sending the to-be-processed information and the decision information cue word to the large model to obtain small model information and decision parameter information output by the large model; based on the small model information, determining a target small model set, and sending the decision parameter information to related target small models in the target small model set; sending the to-be-processed information to the target small model set; receiving a small model processing result set output by the target small model set; and obtaining a processing result of the to-be-processed information based on the small model processing result set, the to-be-processed information, the small model information, the decision parameter information and the large model.
Owner:SINOCHEM AGRI HLDG

Ladle air brick defect detection method and system based on image recognition

The invention relates to the technical field of industrial detection, and provides a steel ladle air brick defect detection method and system based on image recognition, and the method comprises the steps: carrying out the preprocessing of a target steel ladle air brick image shot by an industrial camera, including edge feature extraction, cutting and enhancement, and obtaining a preprocessed image set; for the block corresponding to each preprocessed image, acquiring a multi-angle image set with different resolutions shot by a multi-angle sensor; inputting the multi-angle images into a defect feature extraction network to generate a feature image set, and integrating to obtain an integrated feature image; generating defect positioning and type information based on the integrated feature map and the defect identification model set; and finally, combining the initial image, the model set and the defect information to generate a defect detection result. According to the method, the defect detection precision is improved through multi-angle image fusion and model collaborative verification. According to the invention, the accuracy and reliability of steel ladle air brick defect detection can be improved, and the accuracy of defect positioning and classification is enhanced.
Owner:ZHEJIANG JINHUIHUA SPECIAL REFRACTORIES

Power distribution load prediction method and system

The invention discloses a power distribution load prediction method and system, and relates to the technical field of graph calculation, and the method comprises the following steps: obtaining load data and auxiliary features of a user, and constructing a load portrait; according to the load portrait, selecting a model subset from a pre-training model library, migrating the selected model, and outputting an initial load prediction result; constructing a load association graph according to the spatial adjacency and behavior similarity between the users, and spreading load characteristics in the load association graph; regulating and controlling the model of the target user according to the propagated load characteristics in combination with an initial load prediction result; obtaining a user load data distribution change after regulation and control, and identifying a behavior mutation; through multi-model integration, individual fine tuning, load association graph construction, incremental learning and drift detection, the problems of low precision, poor dynamic adaptability and slow response to sudden change in traditional power distribution load prediction are effectively solved.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO

Software radio unified modeling method and system

The invention discloses a software radio unified modeling method and system, and belongs to the field of software radio, and the method comprises the steps: determining modeling objects as platform modeling and waveform modeling; wherein during platform modeling, abstract modeling is performed on each calculation unit, and during waveform modeling, waveform component modeling and waveform application modeling are included; in the waveform component modeling, at least one modeled waveform component runs on a calculation unit, and a plurality of waveform components can be deployed on the calculation unit at the same time; the waveform application modeling comprises the following steps: establishing a connection relation between waveform components, and assembling into waveform application; then executing a modeling process of creating a platform model, creating a waveform model and establishing a platform and waveform connection relationship, and performing modeling detection; establishing a basic model set after modeling detection; the basic model set comprises a platform model subset and a waveform model subset. The modeling efficiency and the standardization degree are improved.
Owner:10TH RES INST OF CETC

Language model determination method and device, electronic equipment and program product

The invention discloses a language model determination method and device, electronic equipment and a program product, and relates to the technical field of artificial intelligence, the determination method comprises the following steps: receiving a query request sent by a target terminal, and carrying out feature analysis on query information carried by the query request to obtain a target feature vector; determining a candidate model set according to the target feature vector and a model feature vector of each model in a preset model feature database; allocating different preset weights to the performance data corresponding to each model in the candidate model set; and determining a model score of each model according to the performance data and a preset weight, and determining a target language model from the candidate model set based on the model scores. The technical problem that the resource utilization rate is low due to the fact that the language model cannot be accurately determined in the prior art is solved.
Owner:CHINA TOWER CO LTD

Power grid engineering foundation design system and method based on general function module

PendingCN121637621AGeometric CADConfiguration CADGeneral functionMetamodeling
The invention relates to a power grid project basic design system and method based on a general function module. The system comprises a general editing module, a basic primitive modeling module, a parameterized component module, a model integration module and a link reference module. The universal editing module is used for freely adjusting, placing and combining the selected primitives; the basic primitive modeling module is used for providing various basic primitives and completing splicing among the primitives through surface-based arrangement and parameter change; the parameterized component module is used for creating parameterized components in a UI interaction mode; the model integration module is used for importing a public data format through an interface to carry out modeling and design operation; and the link reference module is used for integrating the local file into the current model in the system through the model link reference interface to serve as view reference. Compared with the prior art, the method has the advantages that the technical architecture and functional system design of the design foundation platform is completed under the guidance of the power grid engineering design requirements, and the efficiency is improved.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO

Head and neck cancer image area multi-target classification method and system and medium

The invention provides a head and neck cancer image area multi-target classification method and system and a medium, and belongs to the technical field of medical image processing, and the method comprises the steps: obtaining a data set of a complete head and neck cancer CT image; randomly generating a plurality of neural network structure models, performing training and evaluation according to the data set, performing optimization by taking sensitivity and specificity as multiple optimization targets, and generating a Pareto optimal candidate model set; obtaining a weighting coefficient of each candidate model according to the sensitivity, the specificity and the AUC evaluation result of the candidate model; extracting the reliability and uncertainty of the to-be-classified sample, and adjusting the output probability of each candidate model according to the reliability and uncertainty; and taking the weighting coefficient of each candidate model, the adjusted output probability and the prediction reliability as input, and obtaining a classification result, a prediction probability and uncertainty through ER-rule reasoning fusion. According to the method, the robustness of the classification performance of the multi-fusion model is effectively improved.
Owner:XI AN JIAOTONG UNIV

Tool deployment method, system and equipment based on model context protocol

The invention relates to the crossing field of cloud computing and artificial intelligence technologies, in particular to a tool deployment method, system and device based on a model context protocol, and aims at solving the problem that the integration process of scientific research tools and a large language model (LLM) is complex. A tool description file conforming to a model context protocol specification is automatically generated; in order to meet the rapid and efficient deployment effect of the scientific research tool, a pre-formulated hierarchical construction strategy is adopted, and a container mirror image is generated according to a running environment dependency list in a tool description file, so that the tool construction speed is increased; and meanwhile, on the basis of the security information field and the resource demand list in the tool description file, according to the preset allocation rule, the appropriate operation instance is dynamically allocated, so that the security in the tool deployment process is guaranteed, and the integration and deployment operation efficiency of the tool and the large language model is improved while the labor cost is reduced.
Owner:TONGFANG KNOWLEDGE DIGITAL PUBLISHING TECH CO LTD

Gradient approximation-based large language model fusion method and system

The invention provides a large language model fusion method and system based on gradient approximation. The method comprises the following steps: acquiring a language text data sample; constructing a fine tuning model set and a pre-training model, and defining a difference value between the fine tuning model and the pre-training model as a task vector; the fine tuning model set and the pre-training model are operated in multiple modes, and parameter importance evaluation results of the task vectors are calculated based on gradients in different operation modes; constructing an activation function, and determining a pruning rate in combination with the activation function and a parameter importance evaluation result; pruning and fusion of the fine adjustment model set are completed according to the pruning rate, and a final fine adjustment model is obtained; processing the language text data sample by using a fine tuning model to obtain a corresponding processing result; according to the method, the reliability of a data processing result can be kept while the calculation overhead is remarkably reduced.
Owner:Shanxi Taihang Laboratory Co., Ltd.

Repair material performance prediction and formula optimization method based on machine learning algorithm

The invention discloses a repair material performance prediction and formula optimization method based on a machine learning algorithm, and particularly relates to the crossing field of artificial intelligence and material science, and the method comprises the steps: constructing a structured multi-modal feature library, carrying out the data processing through dual-index and differential noise filtering, constructing an isoproton model set guided by a physical mechanism, and carrying out the optimization of the repair material performance prediction and formula optimization. Comprising three targeted sub-models including a graph neural network, a time sequence convolutional network and a gradient boosting tree, outputs of the sub-models are dynamically fused through a meta-learner, combined prediction of material performance is achieved, a potential formula is actively searched in a high-dimensional solution space through dimension reduction mapping and Bayesian optimization, and the performance of the material is predicted. The method comprises the following steps: performing gradient-guided constraint optimization by using a differentiable physical-data fusion simulator to generate an optimal formula scheme, and finally realizing automatic feedback of new data and autonomous evolution of a model through a triggering rule and a local incremental learning mechanism based on uncertainty and deviation to form a complete self-evolution closed-loop system.
Owner:FUZHOU UNIV +2

Power distribution area net load prediction method based on global modeling and fusion optimization

The invention discloses a power distribution area net load prediction method based on global modeling and fusion optimization, and the method comprises the steps: firstly constructing a global net load prediction model, then carrying out the construction and fine tuning of a local model, and finally carrying out the model integration and fusion prediction. According to the power distribution area net load prediction method based on global modeling and fusion optimization, global modeling, feature extraction and multi-model integration are fused, a global period modeling structure is constructed, area-level local fine tuning is performed on the basis, and a multi-model fusion mechanism is combined, so that the power distribution area net load prediction efficiency is improved. The problems that according to an existing method, modeling is conducted in multiple areas, and the area migration effect is unstable are solved. According to the method, the modeling sharing performance and generalization capability of the model are improved, the depiction capability of periodicity and disturbance characteristics in the transformer area load is enhanced, and high-precision, high-efficiency and high-adaptability net load prediction is realized.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO

Model integration device, method, and program

This model integration device comprises: a weight determination unit 1 that, on the basis of information on a plurality of models which include a pre-update model and a new model trained on the basis of new data, determines a set of weights which is composed of a plurality of weights respectively corresponding to the plurality of models; and an integrated model generation unit 2 that generates an integrated model, which is a model in which a plurality of models are integrated, by weighting parameters of the plurality of models using the determined set of weights.
Owner:NT T INC