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56 results about "Indicator vector" patented technology

In mathematics, the indicator vector or characteristic vector or incidence vector of a subset T of a set S is the vector xT:=(xₛ)ₛ∈S such that xₛ=1 if s∈T and xₛ=0 if s∉T. If S is countable and its elements are numbered so that S={s₁,s₂,…,sₙ}, then xT=(x₁,x₂,…,xₙ) where xᵢ=1 if sᵢ∈T and xᵢ=0 if sᵢ∉T. To put it more simply, the indicator vector of T is a vector with one element for each element in S, with that element being one if the corresponding element of S is in T, and zero if it is not.

Industrial equipment interconnection and intercommunication method based on industrial control platform

The invention discloses an industrial equipment interconnection and intercommunication method based on an industrial control platform, and relates to the technical field of industrial equipment interconnection and intercommunication, and the method specifically comprises the following steps: calculating a behavior entanglement degree between a resending data frame with repeated content and a resending data frame, and if the entanglement degree exceeds a preset threshold value, determining that the resending data frame is the resending data frame; if yes, extracting a sequence offset, a time delay amount and a field fluctuation amplitude, and generating an index vector used for describing the aging degree of the data identifier; the generated index vector is input into a pre-trained graph embedding algorithm model, a first parameter and a second parameter are generated, the first parameter is used for describing the consistency of the data frame and a historical evolution path, and the second parameter is used for describing the aging degree of the data frame identifier. According to the method, the problem that the reissued data of the industrial equipment cannot be accurately identified is solved, and timeliness judgment and validity identification of the state data are realized based on the causal atlas and the graph embedding model.
Owner:SHUNTONG INFORMATION TECH (DALIAN) CO LTD

Electric power sample data acquisition and classification method and system

The invention relates to the technical field of data processing, and discloses a power sample data acquisition and classification method and system. The method comprises the following steps: synchronously acquiring active power, reactive power fluctuation and voltage harmonic data through a multi-point terminal, and constructing six types of characteristic index vector groups; a power load genetic optimization algorithm is used to optimize a classification threshold under power flow constraint; based on the optimal threshold value, clustering analysis is carried out through an EFC-KMeans algorithm in combination with impedance matrix characteristics; and inputting the clustering center into a multi-head power topology attention mechanism modeling node coupling relationship to realize power sample data classification and identification. The physical constraint conditions of the power system are effectively fused in the power sample data acquisition and classification process, so that the physical feasibility and engineering practicability of the classification result are improved.
Owner:STATE GRID HEBEI ELECTRIC POWER RES INST +1

Construction method of intelligent question answering system based on lightweight large model

The invention discloses a construction method of an intelligent question answering system based on a lightweight large model, and relates to the technical field of natural language processing, and the method comprises the steps: receiving a natural language question of a user, carrying out vector coding through a lightweight BERT model, calculating the cosine similarity of the natural language question and a business index vector, and generating a structured semantic map; converting the structured semantic map into a scene feature vector, and injecting the scene feature vector into an adapter parameter block to construct a lightweight scene adaptation model; the lightweight scene adaptation model is combined with a real-time data interface to obtain a structured multi-modal response and construct an index tracking tree; and based on the unexpanded nodes of the index tracking tree, actively initiating scene migration type questions through a questioning strategy engine, obtaining target scene feature vectors, performing deep analysis, and generating a deep question and answer analysis report. According to the method, the lightweight scene adaptation model is constructed, calculation logic is flexibly adjusted according to different service scene features, and the self-adaptive processing capability of a single model to multiple service scenes is achieved.
Owner:ZHEJIANG PISTACHIO SHUZHI TECH CO LTD

Software quality evaluation method and device for power grid dispatching automation system

The invention provides a software quality evaluation method and device for a power grid dispatching automation system. Belongs to the technical field of power dispatching automation. The method comprises the following steps: acquiring running state data of power grid dispatching automation system software, and extracting a third-level index from the running state data; determining subjective and objective fusion weights of the third-level indexes; aggregating the third-level indexes related to the same quality feature according to the subjective and objective fusion weights of the third-level indexes to obtain corresponding second-level indexes; an index vector composed of the second-level indexes is input into the dynamic fuzzy neural network model, and the first-level indexes of the corresponding subsystems are output to serve as comprehensive quality evaluation scores; and determining the software quality grade of the business subsystem according to the comprehensive quality evaluation score and a preset grade threshold value. The method is suitable for power grid dispatching automation system software quality evaluation oriented to complex operation scenes, and comprehensive evaluation and self-adaptive optimization of dispatching software under multi-dimensional and dynamic conditions can be achieved.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD

Reverse design method for microstructure of starch hydrogel

The invention provides a reverse design method of a starch hydrogel microstructure, and belongs to the technical field of computer material science. A standardized data set is constructed by collecting different starch hydrogel microstructure images and corresponding target performance index vectors. And constructing a starch hydrogel microstructure reverse generation model, and establishing nonlinear mapping between a macroscopic mechanical property index and a microscopic topological structure in combination with a multi-scale self-attention mechanism and a double-flow physical consistency identification strategy. Meanwhile, a differentiable physical performance prediction agent model and a multi-dimensional physical consistency coupling loss function are designed, adversarial iterative optimization under physical constraints is executed, and a prediction physical performance vector of a generated structure is forced to strictly approach a target performance index vector through a self-supervised feedback closed loop. According to the method, accurate anchoring of the generated structure on the mechanical property is achieved, design scheme recommendation and morphological quantitative analysis based on confidence are provided, and the intelligent level and scientificity of bio-based material design are improved.
Owner:OCEAN UNIV OF CHINA

LLM-based multi-machine collaborative abnormal data detection system

The invention relates to the technical field of unmanned aerial vehicle cluster security and collaboration, in particular to an LLM-based multi-machine collaboration abnormal data detection system, which comprises a generation module used for generating at least one abnormal detection score by using an airborne end; the processing module is used for extracting features from a first historical database in the edge server to obtain first historical features and binary classification anomaly detection tags, calculating performance index vectors and uploading the binary classification anomaly detection tags and the performance index vectors to the cloud; and the prediction and analysis module is used for performing long-time sequence prediction by using the cloud to obtain a long-time sequence prediction result, and performing security analysis by using the cloud to obtain a security analysis result. Therefore, the problems of mechanism deficiency, data processing bottleneck, insufficient threat coping, poor system expansibility and the like of the existing unmanned aerial vehicle cluster in the aspect of multi-aerial-vehicle cooperation security are solved, efficient multi-aerial-vehicle cooperation is realized, and data processing and utilization are optimized.
Owner:BEIJING INST OF TECH

Index query method and device based on large language model and storage medium

The invention discloses an index query method and device based on a large language model and a storage medium, and the method comprises the steps: carrying out the semantic word segmentation operation of an index query instruction, and obtaining at least one index query keyword; performing a first matching operation on an index vector corresponding to the at least one index query keyword to obtain a target vector matched with the index vector, the target vector including a reference index vector matched with the index vector and a reference dimension vector matched with the index vector; performing second matching operation on the at least one index query keyword to obtain a target keyword matched with the at least one index query keyword; generating a query statement corresponding to the query information through a pre-trained large language model, and performing function verification on the query statement; and under the condition that the query statement passes the function verification, executing the query statement to obtain the index data. The technical problem that the accuracy of index query is low is solved.
Owner:HAIER YOUJIA INTELLIGENT TECH (BEIJING) CO LTD

Government affair data query method and device, electronic equipment and storage medium

The invention discloses a government affair data query method and device, electronic equipment and a storage medium, and is used for solving the problems of relatively high cost, inaccurate query result and relatively slow response of a related government affair data query technology. The method comprises the steps of obtaining a question statement input by a user; performing intention recognition on the question statement based on a pre-trained large language model to obtain a recognition result; under the condition that it is determined that data of government affair indexes need to be queried in a government affair database according to the recognition result, matching corresponding index aperture vectors in a preset government affair index vector library based on the question statements, and determining query index vectors corresponding to the index aperture vectors; wherein the query index vector and a plurality of index aperture vectors corresponding to the query index vector are stored in a government affair index vector library in an associated manner; and through a large language model, according to the query index vector and a preset prompt word project, generating an SQL statement.
Owner:CHINA MOBILE GROUP SHANDONG +1

Fault identification method and system for micro-service architecture without fault marking

The invention discloses a micro-service architecture-oriented fault identification method and system without fault marking, and the method comprises the following steps: constructing a micro-service topological potential energy field based on full-link call data collected in real time, and obtaining the potential well depth of each node depended by a whole network; based on a business semantic type extracted from the call chain; calculating an index vector health consistency coefficient of each node and a direct upstream node under the same service semantic type; performing joint calculation according to the overall dynamic semantic entropy break variable, the potential well depth and the health consistency coefficient to obtain a fault score; when the overall dynamic semantic entropy break variable, the health consistency coefficient and the fault score meet preset triggering conditions at the same time, it is judged that a corresponding node breaks down, and an alarm is output; according to the method, the micro-service calling topological graph with the weight is constructed in the sliding time window, so that the utilization degree of structural information during node state judgment is improved.
Owner:NARI NANJING CONTROL SYSTEM CO LTD

Freeze-thaw collapse event risk early warning method based on adaptive weighting algorithm and LSTM

The invention relates to the technical field of geological disaster prevention and control, and particularly discloses a freeze-thaw collapse event risk early warning method based on an adaptive weighting algorithm and LSTM, and the method comprises the steps: S1, obtaining and collecting multi-source spatio-temporal data, and obtaining a unified data set; s2, obtaining an index vector of each moment; s3, obtaining a normalized feature vector; s4, obtaining a weighted feature vector at the moment; s5, obtaining prediction risk sequences from a short period to a middle period; s6, obtaining risk early warning output for emergency response and a repair strategy; according to the method, an adaptive weighting algorithm based on contribution degree evaluation is introduced, so that the model can dynamically adjust the relative importance of each input index under different time windows and environment conditions. Compared with a static weight method, the mechanism can automatically amplify physical driving factors directly associated with freeze-thaw collapse, such as the influence of short-term snow melting rate, ground temperature gradient or sudden rainfall accumulation, and meanwhile, inhibits event-independent or noise indexes.
Owner:NORTHWEST NORMAL UNIVERSITY

An engineering education system and method fusing explainable multi-objective intelligent optimization

The application provides an engineering education system and method fusing explainable multi-objective intelligent optimization, and relates to the technical fields of intelligent education and artificial intelligence optimization. The method comprises the following steps: obtaining an initial engineering design scheme of a user, and obtaining a standardized multi-dimensional index vector through physical simulation analysis and logical analysis; configuring weights with structured reasons for each index, identifying critical weight values leading to decision reversal through sensitivity analysis, and then determining optimization objectives and constraint conditions; performing multi-objective optimization search using an explainable multi-objective optimizer, generating a Pareto optimal solution set and outputting explainable data; simultaneously generating a behavior interaction sequence of the user; generating a capability evaluation report of the user according to the behavior interaction sequence; and adjusting a preset teaching logic sequence according to the capability evaluation report to form a closed-loop teaching process. The application is suitable for cultivating and evaluating the decision-making ability of students in balancing technical performance and environmental sustainability in engineering design.
Owner:SHENYANG UNIV

Quality evaluation method based on historical case similarity

The invention relates to a historical case similarity-based quality evaluation method, which belongs to the field of software development, and comprises the following steps of: screening out a prior index and a posterior index; collecting data of each stage in the research and development process of each software historical version as historical cases; the specific numerical value of each index is counted; obtaining quality problem source data of the historical cases; taking the historical cases with the labels as input samples, performing model training by adopting an SVM classification algorithm, and constructing a quality problem classification model; constructing a prior index vector matrix for each historical case and the newly-added case, and calculating the similarity between the newly-added case and each historical case; automatically classifying the newly added cases and setting labels; calculating a risk value of each similar case; and averaging the risk values of all the similar cases to obtain a risk coefficient value of the newly added case. According to the method, the influence of manual subjective deviation on index interpretation can be avoided, and an objective quality evaluation standard is established through quantitative similarity analysis.
Owner:E-SURFING DIGITAL LIFE TECH CO LTD

Techniques for instance-wise feature selection for machine learning

In some aspects, a computing system can train a risk assessment model, using a training process, for determining a risk indicator. The training process can include: accessing a set of features; determining, using a selector network, a set of selected features and an indicator vector; and training the risk assessment model using the set of selected features and the indicator vector. The computing system can determine the risk indicator for a target entity using the trained risk assessment model. The computing system can transmit, to a remote computing device, a responsive message including at least the risk indicator for use in controlling access of the target entity to one or more interactive computing environments.
Owner:EQUIFAX INC

Construction method of data quality evaluation model

The invention provides a method for constructing a data quality evaluation model, and belongs to the technical field of quality evaluation, and the method comprises the steps: collecting a to-be-evaluated data set, and obtaining a business demand and an application scene of the to-be-evaluated data set; determining an assessment index vector of the to-be-assessed data set based on the business demand and the application scene of the to-be-assessed data set; based on the to-be-evaluated data set and the evaluation index vector, determining a training quality feature matrix and a test quality feature matrix; and constructing a quality evaluation model based on the training set and the training quality feature matrix, and evaluating and optimizing quality evaluation performance based on the evaluation index vector, the test set and the test quality feature matrix. The method can enhance the capturing capability of the model for the data quality characteristics, achieves the high-precision evaluation of dynamic weighting, improves the intelligence and stability of the quality evaluation model, and improves the adaptability of the model in the quality management and analysis scenes of complex data.
Owner:HUANENG ZHAOCAI DIGITAL TECHNOLOGY CO LTD

An intelligent evaluation method and system for integrated training results based on personalized learning curve

The present invention relates to the field of integrated control training and evaluation technology, and discloses a method and system for intelligent evaluation of integrated control training results based on personalized learning curves, including: collecting training data of controllers, constructing training intelligent evaluation indicators; performing data processing, calculating indicator vectors corresponding to evaluation indicators; constructing a training evaluation model through a multi-layer perceptron, capturing the relationship between deviation and score, and generating a training result score vector; determining the weight of the evaluation indicator, and calculating the training result; constructing a corresponding learning growth curve, identifying weak knowledge points in training, and formulating targeted plans for future training. The present invention can improve the accuracy and reliability of evaluation results, can comprehensively analyze the ability change trend of controllers, accurately identify their learning achievements and ability shortcomings at different training stages, provide a scientific basis for personalized training design and training program optimization, and thus improve the adaptability and comprehensive operational capabilities of controllers.
Owner:GUIZHOU POWER GRID CO LTD

Intelligent weight prediction method for dynamic scene

The invention belongs to the technical field of unmanned ship data analysis, and discloses an intelligent weight prediction method for a dynamic scene, and the method comprises the steps: obtaining unmanned ship data; obtaining an index vector of each unmanned ship according to the unmanned ship data; inputting each index vector into a local attention network to obtain a corresponding first attention weight; calculating a corresponding local attention aggregation result according to each first attention weight; inputting each local attention aggregation result into a global attention network to obtain a corresponding second attention weight; calculating a corresponding global attention output result according to each second attention weight; splicing all global attention output results to obtain an output head vector; and inputting the output head vector into a full-connection feed-forward layer to obtain a weight prediction result. According to the method, the relationship among the parameters in the index vector can be captured to match different formation working scenes, and the index weight prediction precision is remarkably improved.
Owner:SUN YAT SEN UNIV

Motion axis fault diagnosis method of OSPCA-Resformer based on current signal

The invention provides a motion axis fault diagnosis method based on OSPCA-Resformer of a current signal, and the method comprises the steps: collecting a steady-state current signal of a drive end of a motion axis of a machine tool under a normal working condition, extracting a peak value, a root-mean-square value and a kurtosis signal feature value of the current signal, carrying out the dimension reduction of data through a PCA principal component analysis method, and selecting a plurality of feature values as feature index vectors; according to the method, a non-intrusive detection method is adopted, unsupervised online detection and supervised offline model diagnosis are combined into a whole, the calculated amount is greatly reduced, and the method has practical possibility for actual industrial production online detection.
Owner:NANJING TECH UNIV

Compression and decompression of sparse vectors under homomorphic encryption

Mechanisms are provided for compressing ciphertext data for data transmission. A sparse vector is received, comprising a plurality of vector elements and a tree is built from the sparse vector where each leaf node corresponds to a vector element in the sparse vector, and each subsequent level of the tree is built from a child level below it in the tree. Nodes of a subsequent level have values determined based on values of child nodes connected to them. The mechanisms execute a level-based copy-and-recurse operation on the tree from a root node of the tree to leaf nodes of the leaf node level. The level-based copy-and-recurse operation computes, at each level of the tree, an indicator vector and a selection matrix that identifies which nodes to recurse into. The mechanisms generate the compressed ciphertext data based on the indicator vectors and the sparse vector.
Owner:INTERNATIONAL BUSINESS MACHINE CORPORATION

Intelligent information system resource control method and system based on large model

The invention belongs to the technical field of information system resource control, and particularly discloses an intelligent information system resource control method and system based on a large model, and the method comprises the steps: extracting the text data of a request intention, a task type and a task priority label based on a user request log; extracting external event text data based on the external environment data; splicing the index vector and the text vector to obtain an input matrix; predicting the input matrix by using the large model to obtain a task-level resource demand map and a resource control instruction sequence; and taking the task-level resource demand, the resource control instruction sequence, the current resource state of the system, the dependency relationship between the tasks and the historical performance indexes of the system obtained by the large model as input, and obtaining a final task queue priority ranking result and a resource allocation result through a reinforcement learning algorithm. The large model can continuously learn and improve the prediction accuracy and the effectiveness of the control strategy, and self-adaptive optimization is realized.
Owner:SHANDONG ZHONGFU INFORMATION IND +3

A Dynamic Interactive Response Method and System for E-commerce Applications Based on Sensor Data

PendingCN122309313AResponse sensitivityData set
This invention discloses a dynamic interactive response method and system for e-commerce applications based on sensor data, comprising the following steps: collecting and preprocessing data from the e-commerce application's operation to generate a standardized interactive input data set; extracting continuous state features and discrete event features to construct a dual-path coupling control sequence; performing stage correlation calculations to generate interactive stage indicator vectors; inputting the dual-path coupling control sequence and interactive stage indicator vectors into an improved NCDE model to generate a dynamic interactive hidden state sequence; performing response sensitivity modulation to construct a dynamic interactive response strategy set; dynamically adjusting the interface based on the dynamic interactive response strategy set to generate dynamic interactive response results; collecting subsequent feedback and writing back updates to optimize the dynamic interactive hidden state sequence and the dynamic interactive response strategy set. This invention improves the real-time performance, accuracy, and adaptive optimization capabilities of e-commerce interactive responses.
Owner:上海猫诚数字科技有限公司

Digital economic network flow prediction method and system based on artificial intelligence

The invention discloses a digital economy network flow prediction method and system based on artificial intelligence, and relates to the technical field of digital economy monitoring. Comprising the following steps: acquiring historical network traffic time sequence data of a plurality of digital economic entity nodes, corresponding digital economic characteristic data and economic index data aligned with the historical network traffic time sequence data; based on the digital economic characteristic data, the economic index data and the historical network flow time sequence data, constructing a dynamic adjacency graph evolved along with time; the method comprises the following steps: processing historical network traffic time sequence data through a multi-scale time encoder to obtain a node time representation containing a multi-granularity time dependence feature; after node time representation and digital economic feature data are fused, graph volume accumulation combination is carried out in combination with a dynamic adjacency graph, a joint attention mechanism based on an economic index vector generation offset item is introduced, and node representation fused with space-time and economic semantics is generated; and performing initial traffic prediction based on node representation fusing time-space and economic semantics.
Owner:中邮建技术有限公司

A Wavelet Kernel Scale Sensitivity-Guided Denoising Method for Abrasive Induced Voltage Signals

This invention belongs to the field of sensors and signal processing, specifically relating to a wavelet kernel-scale sensitivity-guided denoising method for abrasive particle induced voltage signals. The method includes: acquiring abrasive particle induced voltage signals and performing harmonic cancellation to obtain a preprocessed signal; constructing a wavelet kernel function and calculating a kernel-scale guided spectrum using it and the preprocessed signal; constructing a sparse joint denoising model based on the kernel-scale guided spectrum; processing the sparse joint denoising model to obtain a convex optimization objective function; solving the convex optimization objective function using an adaptive step-size gradient descent method and an adaptive iterative shrinking threshold method to obtain a weight vector characterizing the distribution of abrasive particle characteristic signals; binarizing the weight vector characterizing the distribution of abrasive particle characteristic signals to obtain a feature indicator vector; performing a Hadamard product between the feature indicator vector and the preprocessed signal, followed by low-pass filtering to obtain a denoised signal. This invention can adaptively and non-destructively enhance and denoise abrasive particle characteristic signals under strong interference environments.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Data center data management method and system based on TensorFlow ecosystem

The present invention relates to the field of data management technology, and specifically to a data center data management method and system based on the TensorFlow ecosystem. The method and system collect historical multi-source heterogeneous data and real-time multi-source heterogeneous data in the data center and perform preprocessing to obtain first historical multi-source data and first real-time multi-source data; construct a data partitioning management model to analyze the first historical multi-source data, obtain data partitioning results, and generate a gradient baseline; calculate the real-time gradient baseline based on the first real-time multi-source data, calculate and obtain the reconstruction error of the gradient baseline, dynamically adjust the threshold in real time, and obtain an abnormal TensorFlow ecosystem gradient; construct an abnormality analysis management model to analyze the abnormal TensorFlow ecosystem gradient, obtain a TensorFlow ecosystem abnormality indicator vector, and obtain the specific abnormal factors that cause the abnormality; and evaluate and issue an alarm for the abnormal factors.
Owner:SHANGHAI ATHUB CO LTD

Key pvt angle evaluation method, device and equipment based on probability integral transform

The application provides a key PVT corner evaluation method and device based on probability integral transformation and equipment. The method comprises the following steps: simulating N design samples randomly sampled to obtain a performance index vector to form an original data set S; modeling the performance index vector of each PVT corner by using a kernel density estimation method to obtain a probability density function and a cumulative distribution function of a circuit performance parameter; mapping the performance index vector into a standard normal distribution variable through a probability integral transformation; constructing a multivariate Gaussian distribution model based on the mapped data and obtaining new samples, combining the new samples with the original data set S to form a complete data set, counting the frequency of each corner as the worst PVT corner in the complete data set, and sorting the frequency to obtain a key PVT corner set, wherein the highest frequency is the first key PVT corner. The embodiment of the application can simplify simulation calculation, significantly reduce the calculation cost, accurately lock the PVT corner with the greatest impact on the circuit performance, and improve the design reliability.
Owner:SHANGHAI CHAOJIE CORE SOFT TECH CO LTD

Key PVT angle evaluation method, device and equipment based on probability integral transformation

The invention provides a key PVT angle evaluation method, device and equipment based on probability integral transformation. Comprising the following steps: simulating randomly sampled N design samples to obtain performance index vectors, and forming an original data set S; modeling the performance index vector of each PVT angle by adopting a kernel density estimation method to obtain a probability density function and a cumulative distribution function of circuit performance parameters; mapping the performance index vector into a standard normal distribution variable through probability integral transformation; a multivariate Gaussian distribution model is constructed based on the mapped data, a new sample is obtained, the new sample and the original data set S form a complete data set, each angle in the data set is counted as the frequency of the worst PVT angle, a key PVT angle set is obtained according to frequency sorting, and the highest-frequency PVT angle is the first key PVT angle. According to the embodiment of the invention, the simulation calculation can be simplified, the calculation cost is remarkably reduced, the PVT angle which has the maximum influence on the circuit performance is accurately locked, and the design reliability is improved.
Owner:SHANGHAI CHAOJIE CORE SOFT TECH CO LTD

Power Internet of Things system survivability evaluation method and system based on lattice close degree

The invention discloses a grid close degree-based survivability evaluation method and system for an electric power internet of things system, and the method comprises the steps: obtaining the response time, reliability and availability index data of each service in the electric power internet of things system in an operation process, and constructing a corresponding performance index vector; constructing a fuzzy judgment matrix by adopting a fuzzy analytic hierarchy process and executing defuzzification to generate a weight vector of a performance index; performing normalization processing on each performance index vector, and constructing an optimal reference vector and a worst reference vector; the normalized performance index vector is used as a comparison sequence, the optimal reference vector is used as a reference sequence, and the correlation coefficient and the grey correlation degree of each service are calculated; calculating a weighted distance between each service and the optimal and worst reference vectors to obtain a lattice close degree value; and generating an overall survivability evaluation result based on the lattice closeness values of all services, constructing a time sequence, and realizing trend prediction by using a time sequence prediction model.
Owner:YINCHUAN POWER SUPPLY COMPANY OF STATE GRID NINGXIA ELECTRIC POWER

Method and system for evaluating steam extraction regulation and control performance of rotary partition plate

InactiveCN120654057AData setReal-time data
The invention discloses a method and system for evaluating the steam extraction regulation and control performance of a rotating partition plate, and relates to the technical field of evaluation of the steam extraction regulation and control performance of the rotating partition plate, and the method comprises the steps: collecting the real-time data of the steam extraction regulation and control operation of the rotating partition plate, and constructing a working condition-state-response data set through preprocessing; the method comprises the following steps: constructing a non-linear coupling response prediction model taking a rotating partition plate angle as a driving variable based on rotating partition plate steam extraction regulation and control operation real-time data, and constructing a three-layer performance index system through a deviation between the non-linear coupling response prediction model and an actual monitoring value; and constructing a regulation and control efficiency mapping model through the partition plate angle and the three-layer performance indexes, and classifying and identifying performance index vectors output by the regulation and control efficiency mapping model. According to the method, steam extraction performance accurate modeling and classified regulation and control based on rotating partition plate angle driving are achieved, the system response precision, the regulation stability and the strategy matching performance are improved, and the method adapts to the multi-working-condition dynamic operation requirement.
Owner:HUANENG GANSU ENERGY DEVELOPMENT CO LTD 803 BRANCH

Preprocessing method and system for data classification and grading

The invention discloses a data classification and grading-oriented preprocessing method and system. The method comprises the following steps: acquiring multi-dimensional original feature data of to-be-evaluated data assets; based on a preset mapping rule, mapping the original feature data of each dimension into a corresponding standardized score to form an index vector, and processing and mapping the original feature data of the data scale dimension by adopting a nonlinear function; based on an entropy weight method, according to the distribution of the original feature data, determining the weight of each dimension to form a weight vector; according to the index vector and the weight vector, calculating a comprehensive evaluation index of the to-be-evaluated data asset; and generating a structured evaluation data set according to the comprehensive evaluation indexes to support data classification and grading decisions based on different industry standards or business rules. The technical implementation of data classification and grading from subjective experience judgment to a quantifiable and computable objective system is realized.
Owner:BEIJING LIANSHI NETWORKS TECH CO LTD

An intelligent weight prediction method for dynamic scenes

The application belongs to the technical field of unmanned ship data analysis, and discloses an intelligent weight prediction method for dynamic scenes, which comprises the following steps: acquiring unmanned ship data; obtaining index vectors of each unmanned ship according to the unmanned ship data; inputting each index vector into a local attention network to obtain corresponding first attention weights; calculating corresponding local attention aggregation results according to each first attention weight; inputting each local attention aggregation result into a global attention network to obtain corresponding second attention weights; calculating corresponding global attention output results according to each second attention weight; splicing each global attention output result to obtain an output head vector; and inputting the output head vector into a full connection feedforward layer to obtain a weight prediction result. The application can capture the relationship between each parameter in the index vector to match different formation work scenes, and the prediction accuracy of the index weight is significantly improved.
Owner:SUN YAT SEN UNIV

A key area identification method based on a four-dimensional characterization index

The application relates to a key region identification method based on a four-dimensional characterization index. The method comprises the following steps: based on a sample set, calculating an information surface entropy, a maximum gradient consistency, a local-global similarity divergence and a local-global extreme point ratio to form a four-dimensional characterization index vector of a key region; fusing the four-dimensional characterization index vector based on a Pareto dominance relationship, dividing candidate key regions into different front levels through non-dominated sorting, calculating the crowding distance of each front region, and screening the key region in the test sample space in combination with the front level and the crowding distance. The method can improve the utilization efficiency of a new type of aero-engine digital twin test resources.
Owner:NAT UNIV OF DEFENSE TECH