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52results about How to "Realize deep mining" patented technology

Series-wound long short-term memory recurrent neural network-based heating load prediction method

ActiveCN107239859ASolving the vanishing gradient problemFast convergenceForecastingNeural learning methodsShort durationMachine learning
The present invention discloses a series-wound long short-term memory recurrent neural network-based heating load prediction method. The method comprises the steps of constructing a sample data set based on temperature, climate and heat supply data during a given period of time, and respectively subjecting the input data and the output data of the sample data set to standardized treatment; dividing the input data into two portions, respectively inputting the two portions into two independent long short-term memory recurrent neural networks to merge the two portions of the input data, inputting the output data to a long short-term memory recurrent neural network at a next layer, and finally inputting the data into two full connection layers; training a constructed series-wound long short-term memory recurrent neural network, and optimizing the network by adopting the parameter optimization-based adaptive torque estimation algorithm; inputting to-be-predicted data into the series-wound long short-term memory recurrent neural network, calculating and obtaining a heating load prediction result. The method of the invention can effectively discriminate input data, and accelerate the learning speed. Therefore, the learning efficiency is improved and the prediction accuracy is improved.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2

User portrait analysis method based on e-commerce big data and artificial intelligence platform

The embodiment of the invention provides a user portrait analysis method based on e-commerce big data and an artificial intelligence platform. The method comprises the steps of obtaining browsing behavior information of a video live broadcast terminal of a live broadcast audience account for live broadcast commodity recommendation information of the live broadcast audience account; performing deepanalysis to obtain a current positive browsing relationship feature and a current negative browsing relationship feature; and obtaining browsing tendency information after comparison, determining browsing behavior label information of the anchor audience account based on the browsing tendency information, and then analyzing the browsing behavior label information of the anchor audience account according to a preset artificial intelligence model to generate a user portrait of the anchor audience account. Thus, deep mining of further browsing behaviors of audiences on the live broadcast commodity recommendation information can be realized, so that the browsing tendency of the audiences is effectively mined, the deep dimension of the analysis process of the user portraits of the audiences isexpanded, and subsequent information pushing and audience experience optimization are facilitated.
Owner:长沙居美网络科技有限公司

Deep learning-based water regime trend prediction method for dense river network basin and application thereof

The invention discloses a deep learning-based river network dense drainage basin water regime trend prediction method and application thereof, and the method comprises the following steps: collecting daily scale rainfall and water level time sequence point data of all rainfall stations and river channel water level stations in a whole drainage basin range, and longitude and latitude information of each observation station, and recompling the above; converting the reorganized rainfall and water level time sequence point data into spatio-temporal data through an inverse distance weight method and a contour surface diagram rendering method; constructing and training a watershed high-resolution water level forecasting model, and respectively inputting rainfall and water level spatio-temporal data tensors; wherein the watershed high-resolution water level forecasting model comprises a preliminary spatial feature extraction module, a spatial-temporal feature extraction module, a stacking module, a splicing module and a feature reduction module; and the model outputs a water level contour surface diagram of the whole watershed in the prediction period to obtain a watershed water regimen change trend. The runoff production and confluence mechanism of the drainage basin can be fully mined from historical hydrological data, and the space-time water regimen change of the whole drainage basin can be accurately forecasted.
Owner:PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION

Electric energy meter operation state monitoring method based on genetic algorithm and social agglomeration

The invention relates to an electric energy meter operation state monitoring method based on a genetic algorithm and social agglomeration, and the method comprises the following steps: 1) obtaining the basic data of a to-be-detected electric energy meter, and extracting the power utilization characteristic parameters of the to-be-detected electric energy meter; 2) on the basis of the power utilization characteristic parameters, acquiring the operation state of the to-be-tested electric energy meter by adopting an electric energy meter state evaluation model based on a genetic algorithm and a multivariate neural network; wherein the power utilization characteristic parameters are selected according to electric energy meter operation state correlation factors, and the electric energy meter operation state correlation factors are determined based on a social agglomeration algorithm. Compared with the prior art, the method has the advantages of promoting the state alternation of the electric energy meter to be reasonable and intelligent, timely discovering the fault meter and the electric energy meter with potential quality hazards, guaranteeing the operation quality level of the electric energy meter and the like.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO

Generator set and heat exchange station joint start-stop control decision making method

The invention relates to a generator set and heat exchange station joint start-stop control decision making method, which belongs to the technical field of power system operation. A generator set andheat exchange station joint start-stop control decision making model is established. The objective function of the model is to minimize the total power generation and heat supply cost of conventionalthermal power units and heat supply thermal power units, and the constraints include power system constraints and heat supply system constraints. In the method, the established generator set and heatexchange station joint start-stop control decision making model is transformed equivalently by a large M method, and finally, an obtained mixed integer quadratic programming problem is solved to obtain a generator set and heat exchange station joint start-stop plan. The method can avoid the risk of insufficient power and heat supply caused by the risk of traditional experience-based control decision making, ensure the safety and reliability of power supply and heat supply, fully tap the thermal inertia and heat storage characteristics of the heat supply system and significantly improve the wind power absorption of the power system.
Owner:TSINGHUA UNIV +2

Comprehensive energy system optimal distribution robust economic dispatching method for source-load collaborative carbon reduction

The invention belongs to the technical field of integrated energy dispatching, and discloses a source-load collaborative carbon reduction integrated energy system optimal distribution robust economic dispatching method, which comprises the following steps of: constructing an integrated energy system carbon emission model; establishing a source side joint operation framework on the source side; setting a price type comprehensive demand response mechanism on a load side; constructing a demand response model; comprehensively considering different energy utilization ratio conditions of a load side, setting an energy utilization ratio coefficient, and constructing a satisfaction evaluation model; therefore, an integrated energy system scheduling mode based on a source-load collaborative carbon reduction mechanism is established; based on a distribution robust optimization theory of an imprecise probability opportunity constraint, a constraint relation between robustness and economy of a scheduling scheme is fully considered, an optimal distribution robust economic scheduling model of the integrated energy system is constructed, and a compromise solution is solved, so that subjective limitation of conventional distribution robust optimization is eliminated, and the optimal distribution robust economic scheduling model of the integrated energy system is obtained. And finally, comprehensive energy system optimization scheduling capable of balancing robustness and economical efficiency is realized.
Owner:EAST CHINA JIAOTONG UNIVERSITY

New optional course-scheduling system for college entrance examination

The invention provides a new optional course-scheduling system for college entrance examination, which comprises an online course selection subsystem, an intelligent division subsystem, an optional course-scheduling subsystem, a network reading evaluation subsystem, a teaching evaluation subsystem, a teaching resource subsystem and an optional course-scheduling device. The system is reasonable indesign and uses AI and various teaching and planning methods. Under the condition of limited resources, various resource constraint conditions faced in new course-scheduling for college entrance examination can be met to the maximum extent, intelligent class division and accurate course-scheduling are achieved, the problem of selection, scheduling, management and evaluation of course-scheduling teaching is solved for middle school users under a new college entrance examination system, the problem of education resource configuration is solved for regional managers, and a digital campus system can be integrated. The invention can meet needs of users and can be widely applied to high school schools carrying out course selection and class shift teaching, and can also be widely applied to general course scheduling of schools at all levels such as all primary schools, junior high schools, junior high schools and colleges.
Owner:武汉因特利金科技有限公司

Solid rocket engine mapping design method and device, and equipment

ActiveCN112818469AImprove the level of intelligent designRealize knowledge reuseGeometric CADDesign optimisation/simulationNozzle throatMechanical engineering
The invention relates to a solid rocket engine mapping design method and device, and equipment. The method comprises the steps: obtaining a target thrust curve and an engine original parameter of a solid rocket engine ; performing geometric scaling on the engine original parameter; according to the engine parameter subjected to the geometric scaling, calculating the shell area, the heat insulation layer area, the charge combustion area and the thickness; calculating the nozzle throat area according to the engine parameter and the charge combustion area; determining the engine combustion speed through an optimization algorithm, and determining the throat diameter is determined according to the nozzle throat area; generating a design thrust curve according to the engine parameter, the thickness, the engine combustion speed and the nozzle throat area; calculating the root-mean-square error of the design thrust curve and the target thrust curve, and adjusting the engine combustion speed according to the root-mean-square error by using an optimization algorithm; and outputting the corresponding overall mapping design parameter of the engine when the root-mean-square error is minimum. By using the technical scheme, the technical effect of greatly improving the design efficiency is achieved.
Owner:NAT UNIV OF DEFENSE TECH

Multi-wind turbine generator operation state identification method based on migration component analysis

The invention discloses a multi-wind turbine generator operation state identification method based on migration component analysis, and belongs to the technical field of monitoring and analysis of the running states of the wind turbine generators, health condition evaluation and power generation performance evaluation. Firstly, key influence parameters of wind power are mined, and a wind turbine generator operation characteristic data set is constructed; then, a multi-wind turbine generator operation data distribution assimilation model based on migration component analysis is constructed, and a multi-wind turbine generator operation data distribution assimilation data set is obtained; then, a target wind turbine generator normal behavior model based on machine learning is constructed; and finally, on the basis of the normal behavior model of the target wind turbine generator, power prediction residual errors of different wind turbine generators are obtained, and batch identification of the running states of the multiple wind turbine generators is realized. The model can give consideration to the identification precision and efficiency at the same time, and can provide reliable data support for the monitoring and analysis of the operation state of the wind turbine generator, the evaluation of the health condition of the wind turbine generator and the evaluation of the power generation performance of the wind turbine generator.
Owner:CHINA THREE GORGES CORPORATION +1
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