313 results about "Tensor decomposition" patented technology

The invention provides a self-adaptive network topology dynamic reconstruction method and system based on deep reinforcement learning, and relates to the technical field of deep reinforcement learning, and the method comprises the steps: obtaining the topology state information, service flow distribution information and historical reconstruction records of a current network; extracting topological correlation characteristics among nodes through graph convolution operation, and generating fusion state representation in combination with service flow information; inputting the fusion state representation into a deep reinforcement learning model to identify bottleneck nodes and redundant links, and outputting a reconstruction action candidate set; searching and evaluating the long-term cumulative income of the candidate actions through a Monte Carlo tree, and screening an optimal reconstruction action sequence; a graph coloring algorithm is utilized to allocate time slots and process resource conflicts, and a resource-feasible topology adjustment scheme is generated; and extracting a network evolution rule through tensor decomposition, and constructing a topological optimization association mapping graph. According to the method, the network bottleneck can be intelligently identified, the network topology structure is dynamically optimized, and the network performance and the resource utilization rate are effectively improved.

The invention discloses a concrete strength remote monitoring method and system suitable for a complex environment, and belongs to the technical field of civil engineering structure health monitoring. The remote monitoring method comprises the following steps: step 1, acquiring performance data of a concrete structure and related environmental factor data, and transmitting multi-source heterogeneous data to a data processing center in real time through a preset wireless communication protocol; step 2, constructing a five-dimensional tensor data structure, and realizing accurate mathematical expression of a complex coupling relationship between environmental factors and material characteristics through tensor decomposition; step 3, capturing nonlinear time-varying characteristics of concrete strength evolution; 4, quantifying the age effect through an intensity development rate index; step 5, based on the intensity development rate change trend, adaptively adjusting the data sampling frequency and monitoring the environmental condition fluctuation; and step 6, evaluating the safety state of the concrete structure in real time, and ensuring safe and reliable operation of the concrete structure in a complex environment.

The invention provides an ocean wind field prediction method based on a neural network, and belongs to the technical field of ocean wind field prediction.The method comprises the steps that sparse ocean observation data are collected, a spatial covariance matrix is established, the spatial covariance matrix is converted into a graph structure, and then multi-hop neighborhood feature aggregation is conducted through a graph convolutional network; a tensor decomposition algorithm is combined for modeling high-order feature interaction to generate a gridding wind field, a bidirectional long-short-term memory network encoder is used for extracting space-time invariant features, a multi-layer perceptron predictor is used for directly mapping a future multi-step wind field, and a course learning strategy and a Shenchang differential equation boundary layer are matched for correction. The technical problem that sparse ocean observation data are difficult to accurately reconstruct into a high-resolution gridding wind field is solved.

The invention discloses an on-load tap-changer vibration fault diagnosis algorithm based on tensor feature and adaptive weighted Stacking integration, relates to the technical field of on-load tap-changer fault diagnosis, and is used for improving the fault diagnosis precision. Comprising the following steps: S1, data acquisition; s2, feature extraction; the method comprises the following steps: extracting multi-scale time-frequency characteristics of an on-load tap-changer vibration signal by using wavelet scattering transform WST, and realizing low-rank decomposition and dimensionality reduction characterization of high-dimensional characteristics by combining a non-negative tensor decomposition model NTF; s3, fault diagnosis; a multi-base learner Stacking integration framework is adopted, and a prediction matrix is generated through K-fold cross validation; through a swarm intelligent optimization algorithm SRA, hyper-parameters and fusion weights of all base learners are adjusted, L2 regularization suppression over-fitting is introduced, and finally fault classification is realized by adopting a logic regression element learner with Softmax cross entropy. According to the invention, through fault diagnosis of multi-model adaptive fusion and optimization, the fault identification precision, stability and on-line monitoring capability are improved.

The invention relates to the technical field of hoisting equipment monitoring, and discloses a hoisting equipment digital real-time monitoring system based on the Internet of Things. A dynamic load analysis module of the system collects multi-dimensional operation parameters in real time through distributed edge computing nodes; the risk situation assessment module executes tensor decomposition operation on the parameters, extracts feature vectors and generates a three-dimensional risk map; the self-adaptive safety control module dynamically adjusts the working state of the equipment according to the risk map; the digital twin mapping module is used for realizing time-space synchronous mapping of real-time parameters and a three-dimensional model and outputting holographic running state projection; and the cloud collaborative diagnosis module fuses the historical fault case library to generate a preventive maintenance strategy and returns the preventive maintenance strategy. The system can comprehensively monitor the equipment state, accurately assess the risk, realize dynamic safety control and preventive maintenance, and improve the safety and reliability of the operation of the hoisting equipment.

The invention relates to the field of computer vision and deep learning, and discloses an image big data classification and recognition method and system based on deep learning, and the method comprises the steps: generating a gating matrix through the extraction of an image frequency domain energy coefficient, compressing a convolution kernel through the combination of asymmetric tensor decomposition, and carrying out the self-adaptive training through cross-modal semantic alignment and a meta-learning task. Efficient classification reasoning of dynamic path selection is realized, and the precision and the calculation efficiency are improved; the system comprises a frequency domain analysis module, a dynamic sparse gating module, an asymmetric tensor decomposition module, a meta-learning task generation module, a cross-modal alignment module and a dynamic inference engine module. According to the method, through cross-modal semantic alignment and meta-learning task optimization, in combination with lightweight parameter storage and edge calculation path selection, fine-grained classification precision improvement, model compression and high-efficiency reasoning are realized, and the calculation efficiency and generalization ability in a complex scene are remarkably enhanced.

The invention provides a spatio-temporal data fusion-based power distribution network load prediction method and system, and relates to the technical field of power distribution network load prediction, and the method comprises the steps: collecting related data of a power distribution network, carrying out the wavelet transform decomposition of historical load data, obtaining a load feature matrix, constructing a hierarchical graph convolution network based on topological structure data, and extracting topological correlation features; and generating a spatial-temporal feature tensor through tensor decomposition fusion, training a depth probability prediction model adopting a variational auto-encoder structure, and adjusting prediction probability distribution in combination with environmental data. According to the method, the prediction precision is improved, a complex space-time dependency relationship can be captured, and reliable uncertainty quantization is provided.

The invention provides an infrared small target detection method and system based on depth-guided low-rank sparse decomposition, and relates to the technical field of remote sensing image processing, and the method comprises the steps: obtaining all original infrared images shot by remote sensing equipment, and sequentially stacking the original infrared images according to an obtaining time sequence, and obtaining an infrared original tensor; performing low-rank background and sparse target decomposition processing based on the infrared original tensor to obtain a low-rank sparse tensor decomposition model; a low-rank background tensor containing nonlinear transformation is obtained through processing of a constructed hierarchical nonlinear tensor ring background module; processing through a sparse target module fused with an attention mechanism to obtain a sparse feature tensor of the infrared small target area; and reconstructing a low-rank sparse tensor decomposition model guided by the deep neural network, and carrying out solving processing to obtain a final infrared small target detection result. According to the invention, accurate, robust and rapid detection can be carried out on a small target under a complex background.

The invention belongs to the technical field of software development and testing, and discloses an artificial intelligence-based software development automatic test case generation system, which is characterized in that an immune heuristic case self-repairing module is adopted, defects are regarded as antigens, antibody cases capable of being self-updated are generated by using a clone selection algorithm, and a gene rearrangement mechanism is automatically triggered when an interface is changed, so that the test efficiency is improved. The details of the use case are adjusted while the core detection logic is reserved; compared with a traditional method, the mechanism can realize use case dynamic adaptation without manual intervention, the maintenance workload is remarkably reduced, and the method is particularly suitable for a complex software system with frequent iteration; the space-time coupling test scene generation engine fuses dynamic scenes such as interaction and state transition of a module and short-time operation after precise coverage login by using a space-time convolutional network; the cross-dimension holographic use case synthesis module integrates multi-source data such as codes, hardware and user behaviors through tensor decomposition to generate a composite use case; functions and performance of software in a complex scene can be comprehensively verified, and test blind areas are remarkably reduced.

The invention relates to the technical field of enterprise data analysis, and discloses an enterprise data clustering processing method and system based on NLP and machine learning, and the method comprises the steps: S1, obtaining structured data and unstructured text data of an enterprise; s2, carrying out standardization processing on the structured data, extracting key business indexes, and forming structured feature vectors; the system comprises a data acquisition and preprocessing module, a multi-modal feature construction module, a causal semantic alignment module, a tensor decomposition module, a graph modeling module, a clustering module and an anti-fact reasoning module. The comprehensiveness and accuracy of enterprise behavior analysis are improved through multi-modal data fusion, a graph neural network and a causal reasoning technology; modeling by utilizing a dynamic graph and a causal relationship, and deeply mining an enterprise transaction relationship; and more accurate enterprise risk early warning is realized through anti-fact analysis and a risk scoring mechanism.

The invention relates to the field of aviation voice signal processing, and discloses a voice recognition compensation pilot earphone hearing protection method and system, and the method comprises the following steps: collecting multi-modal data, and separating a sound source through tensor decomposition; inferring a pilot state by using a dynamic network; performing context recognition and semantic evaluation on the attention target voice; and finally, dynamically modulating the sound field based on deep reinforcement learning, enhancing the voice in a personalized manner, and outputting after noise suppression. The system comprises a multi-mode perception data acquisition module, a sound source decoupling module, a pilot state inference module, a voice processing and semantic evaluation module and a sound field modulation and output module. According to the invention, high-fidelity speech extraction is realized through multi-modal perception and tensor decomposition; evaluating priority key information in combination with attention and semantics; and deep reinforcement learning and model prediction control are adopted to dynamically optimize the sound field, so that the voice recognition accuracy and the pilot information acquisition efficiency are improved.

The invention relates to the technical field of data processing, in particular to a method for driving emotion interaction of an intelligent device based on multi-modal understanding, and aims to eliminate illumination and noise interference and output a standardized face video stream, an effective voice segment and a touch thermodynamic diagram through an environment adaptive acquisition module. The feature extraction module extracts facial action optical flow features, voice Mel-frequency cepstral coefficient vectors and tactile pressure gradient parameters. The cross-modal correlation model adopts a tensor decomposition algorithm to calculate a space-time correlation matrix of visual and voice features, and the tactile feature weight is dynamically adjusted in combination with environmental parameters. According to the response strategy, an intervention scheme is retrieved based on a graph database, emotion confirmation statements, guide statements and behavior suggestions are fused to generate multi-mode response, and PID adjustment of the temperature control device and tactile pulse output of the vibration device are synchronously driven. And the feedback evaluation module verifies the emotion recognition consistency through a Pearson's correlation coefficient, triggers conflict sample separation storage and model increment training, and realizes closed-loop optimization.

The invention provides an image restoration method based on adaptive weighted tensor completion, and relates to the technical field of image processing and application, and the method comprises the steps: obtaining to-be-restored image data, and carrying out the tensor of the to-be-restored image data, and obtaining input tensor data; constructing a tensor completion model based on an adaptive weighted tensor nuclear norm; wherein a weight matrix in the tensor completion model can be adaptively updated along with input tensor data; and based on an alternating direction multiplier method or an approximate singular value decomposition method based on tensor QR decomposition, solving the tensor completion model, and outputting restored tensor data to realize image restoration. According to the scheme, the image restoration quality can be improved.

The invention relates to the technical field of wireless communication, and discloses a wireless communication adaptive method and system based on a data transmission state, and the method comprises the steps: obtaining multi-source data, carrying out the preprocessing of the multi-source data, obtaining a CSI compression matrix, predicting the channel coherence time, dynamically adjusting the CSI sampling interval, and defining a load-channel coupling factor; obtaining cross-layer data based on the CSI compression matrix, performing fusion through a rotation matrix to obtain a fusion matrix, and extracting a physical layer fusion feature and an application layer fusion feature to calculate a multi-target state score; establishing a 5G power compensation mechanism based on cross-layer data, calculating a four-dimensional influence tensor, performing tensor decomposition and optimal action selection, and decomposing T into a core tensor and a factor matrix; selecting an optimal parameter combination through modular product calculation; based on cross-layer data, a quantum entanglement feedback mechanism is introduced, data is fed back, entanglement state association cross-layer indexes are designed, a quantum gate is adjusted through entanglement state design, and a model is updated in real time in combination with incremental learning.

The invention relates to the technical field of computer data processing, and discloses a building material supplier dynamic evaluation and recommendation system based on big data, and the system comprises a data fusion module which integrates multi-source heterogeneous data to generate a unified data set; the tensor modeling module is used for constructing and decomposing a five-dimensional space-time tensor to obtain a factor matrix and a dynamic weight; the causal correction module is used for establishing a causal graph based on the network relationship and eliminating hybrid deviation; the recommendation decision module is used for outputting a recommendation list through reinforcement learning in combination with the evaluation weight and the performance distribution; and the interpretable module is used for generating an interpretable report based on the factor and the causal path. According to the method, the technical scheme of multi-source heterogeneous data fusion and five-dimensional space-time tensor decomposition is adopted, and dynamic, multi-dimensional and relevance evaluation of supplier performance is realized by constructing a unified data structure including suppliers, time, static characteristics, context and cooperative relationships.

The invention relates to the technical field of power grids, and discloses a power station resonance multi-modal monitoring and distributed control method for path aggregation impedance, and the method comprises the following steps: constructing a high-dimensional tensor through obtaining time-varying impedance data of a power station, and carrying out the decomposition to extract a resonance mode; constructing a stable manifold by using modal features, and describing a stable boundary of the system; the resonance risk is quantified by calculating the geometric distance between a future state point and the stable manifold, and finally an optimal preventive control strategy is generated according to a risk assessment result; the system comprises a data acquisition and construction module, a resonance mode decoupling module, a stable manifold construction module, a resonance risk assessment module and a distributed cooperative control module. According to the method, the resonance mode is accurately identified through tensor decomposition, the nonlinear stable boundary is constructed by using manifold learning, the prospective quantitative evaluation of the resonance risk and the intelligent preventive control are realized, and the active safety of power station operation is remarkably improved.

The invention relates to the technical field of quantum computing, and provides a linear complexity quantum state preparation method based on tensor decomposition and a quantum circuit construction system.The high-dimensional tensor is decomposed into a series of low-rank core tensors through continuous singular value decomposition, each core tensor in a core tensor sequence is expanded into a unitary matrix, and the unitary matrix is used as a quantum circuit; the unitary matrix sequence is mapped to quantum lines coupled using adjacent qubits, and the quantum lines are run to prepare a target quantum state. Based on this, the line generated by the method can approximately or accurately prepare a target quantum state only by coupling adjacent quantum bits, and is perfectly adaptive to quantum chips of linear or grid topologies such as superconducting and semiconductor quantum dots and the like.

The invention discloses a lanyard data line interaction control method based on artificial intelligence, and the method comprises the following steps: S1, collecting interaction data of a lanyard data line, and carrying out the preprocessing of the interaction data; s2, segmenting according to a set window, performing singular value decomposition on each segment, and constructing a main feature set; s3, performing hypersphere embedding on the principal component vector, performing linear projection on the residual vector, and generating a characteristic spectrum by adopting Laplacian mapping; s4, performing tensor decomposition on the characteristic spectrum, and constructing a multi-order structure; s5, executing bidirectional loop iteration on the tensor interaction sequence and controlling information transmission; s6, analyzing the prediction action, matching the prediction action with an instruction mapping table, generating a control instruction, and sending the control instruction to the terminal equipment; and S7, counting execution feedback, updating a tensor interaction sequence weight, and optimizing an interaction control strategy. According to the invention, high-precision identification and stable adaptive control of the lanyard data line are realized, and the interaction precision, the response speed and the use convenience are effectively improved.

The invention provides a cable three-dimensional imaging method based on multi-modal features and physical constraints, and the method comprises the steps: generating a three-dimensional frequency domain-spatial domain coupling field according to a terahertz image and an X-ray image which are used for detecting a cable, carrying out the tensor decomposition of the three-dimensional frequency domain-spatial domain coupling field, and taking a core tensor as a cross-modal feature; after a fusion weight is calculated through the cross-modal features, the terahertz image and the X-ray data image are subjected to weighted fusion through the fusion weight, and a fusion image is generated; determining a target function for physical constraint, and performing iterative optimization on the fused image by adopting the fusion weight based on the target function until convergence to obtain a target image; target image reconstruction is accelerated in parallel through quantum derivation, and a three-dimensional image of the cable is obtained. Therefore, deep integration of structure information and material attributes in different modal images is realized, and the imaging quality of the three-dimensional image is improved.

The invention relates to the technical field of colloidal gold detection, and discloses a colloidal gold multi-index synchronous detection system for AI multi-task scheduling. The system comprises a spectral feature decoupling module which separates overlapped spectral responses based on a graph convolution network and generates a spectral fingerprint spectrum; the multi-index quantization module analyzes the nonlinear mapping relation through a variational auto-encoder to generate a quantization decision vector; the fluid dynamic modeling module is combined with a Navier-Stokes equation to invert a sample diffusion path; the signal drift suppression module suppresses background interference by applying a generative adversarial network; the task scheduling engine module adopts a Monte Carlo tree search strategy to allocate computing resources; the cross interference compensation module generates a compensation coefficient matrix by using a tensor decomposition algorithm; and the feedback module controls the micro-valve array to optimize the detection synchronism. All the modules cooperate to achieve multi-index synchronous detection, the detection precision, efficiency and anti-interference capability are improved, and the system is suitable for the fields of medical diagnosis, food safety detection and the like.

The invention discloses a mass spectrometric analysis-based paint component detection system and method, and the system comprises a data collection and tensor construction module which collects and processes original data to obtain a decomposable tensor; the tensor decomposition module is used for decomposing the sorted tensor through a PARAFAC model; the spectrum prediction model module is used for establishing candidate samples and predicting the candidate samples through a spectrum prediction model to obtain predicted spectrum vectors; the spectrum similarity calculation module is used for comparing the fragment spectrum vectors with the prediction spectrum vectors one by one and obtaining matching scores through calculation; the Bayesian fusion module is used for carrying out probabilistic fusion on the fragment spectrum vector and the prediction spectrum vector, and obtaining the existence probability and the concentration posteriori distribution through calculation; and the detection module is used for labeling and confirming the candidate samples of which the matching confidence is lower than a set threshold value. According to the method, the detection reliability is improved while the accuracy is ensured, and the requirement of being applied to a complex detection scene is met.

The invention discloses a vector hydrophone array orientation estimation method for performing tensor decomposition by using a propagation operator, relates to the technical field of vector hydrophone array orientation estimation, and discloses a vector hydrophone array orientation estimation method for performing tensor decomposition by using a propagation operator. The method comprises the following steps: firstly, constructing a three-dimensional array manifold tensor composed of an array direction matrix and a vector hydrophone output matrix; respectively expanding received signal tensors according to three modes, solving a propagation operator based on a column block covariance matrix, constructing a normalized signal subspace, establishing a spatial spectrum function with a noise subspace, and obtaining a pitch angle and an azimuth angle of a sound source through spectrum peak search; according to the method, high-order singular value decomposition is avoided, the operand is greatly reduced, meanwhile, high resolution and low sidelobe direction finding performance are kept, and the method is suitable for a real-time underwater acoustic direction finding system of a ship-borne platform, a buoy platform and an unmanned platform.

The invention relates to the technical field of electric power system operation and control, and discloses a system-perspective networking capability evaluation index and power supply parameter mapping system, which comprises a data acquisition module, a dynamic tensor modeling module, a coupling decomposition module, a distributed optimization module, an index fusion module and an edge cloud collaboration module. The method comprises the steps of constructing a dynamic tensor by collecting power grid data in real time, decomposing and extracting coupling features and generating optimization constraints, realizing parameter cooperative adjustment based on hierarchical multi-objective optimization and quantum particle swarm optimization, and forming a closed-loop optimization process by combining entropy weight-TOPSIS weight distribution and edge federated learning feedback updating. According to the method, the time-space correlation characteristics of the power grid are extracted by improving Tucker tensor decomposition, hierarchical ADMM optimization and quantum particle swarm optimization are combined, an entropy weight-TOPSIS dynamic weighting and federated edge collaboration mechanism is adopted, a power supply parameter-network construction capability index mapping model is constructed, and the multi-target optimization precision, the real-time performance and the data privacy are improved.

The invention relates to the field of data processing, and provides a multi-dimensional feature driven B2B2C collaborative recommendation method and system. The method comprises the steps of performing multi-dimensional collection on B-end merchant features, C-end user features and commodity features through a heterogeneous data source interface to obtain standardized multi-dimensional features; performing dynamic weight learning on the standardized multi-dimensional feature data set through a multi-head self-attention mechanism to obtain a fusion feature vector; performing three-layer cooperative matrix construction on the fusion feature vector based on tensor decomposition to obtain a multi-dimensional factor matrix; performing causal relationship modeling on the multi-dimensional factor matrix through a causal graph structure-based collaborative filtering algorithm to obtain a deep collaborative network model; and performing real-time recommendation of to-be-recommended items through the deep collaborative network model to obtain a personalized B2B2C recommendation list. According to the method, the complex mode in the business scene can be captured, and the accuracy of the personalized recommendation result is improved.

The invention relates to the technical field of hydraulic engineering, and discloses a gate station-based flow coefficient calculation and analysis method, which comprises the following steps of S1, synchronously acquiring flow, gate opening and upstream and downstream water level parameters from a gate station; s2, performing dimensionless processing on the acquired real-time monitoring data; s3, constructing a three-dimensional feature tensor according to the preprocessed data; s4, decomposing the three-dimensional feature tensor by using a weighted constraint tensor decomposition technology; s5, on-line parameter identification is carried out based on the flow calculation model; and S6, flow prediction is executed according to the real-time flow parameters, and the corresponding gate opening degree is output to control the water flow of the gate station. By performing dimensionless processing and logarithmic binning method preprocessing on the acquired real-time monitoring data, the influence of different dimensions and measurement errors on model establishment is eliminated. Compared with a traditional data processing method, according to the technical scheme, the consistency and reliability of the data are ensured, and the accuracy of model analysis is improved.

The invention relates to an anti-NMDAR encephalitis clinical prognosis evaluation method based on artificial intelligence, and belongs to the technical field of artificial intelligence and data processing. The method comprises the following steps: acquiring multi-modal nerve image data of a patient; performing fusion preprocessing on the multi-modal neural image data by adopting a tensor decomposition fusion strategy, and reserving cross-modal spatial correlation through low-rank constraint to obtain a fused output tensor; carrying out focus perception anisotropic diffusion filtering on the fused output tensor to obtain an output image after diffusion filtering; an anti-NMDAR encephalitis clinical prognosis evaluation model is constructed, the output image after diffusion filtering is input into the model for training, an Adam adaptive optimizer is adopted to optimize the training process, and finally a trained model is obtained; and inputting a to-be-evaluated output image after diffusion filtering into the trained model to obtain an evaluation classification result. The identification and classification capability of the model on the focus can be enhanced.

The invention relates to the technical field of financial science and technology and artificial intelligence crossing, and discloses a multi-modal data fusion cross-market arbitrage opportunity mining system, which comprises data acquisition and preprocessing: acquiring and standardizing multi-source data; space-time adaptive tensor construction: organizing the data into a unified space-time tensor; multi-scale tensor decomposition: decomposing the tensor on multiple scales to extract a market mode; dynamic weight self-correction: generating a dynamic weight to guide tensor construction and decomposition; a market association tensor network: constructing a high-order market association network; life cycle prediction: predicting duration and an attenuation curve of the arbitrage opportunity; and multi-objective optimization decision: balancing risk and income to generate an optimal strategy, and feeding back an execution effect to realize closed-loop optimization. According to the invention, through dynamic weight correction, multi-scale tensor decomposition and life cycle prediction, deep mining and adaptive optimization decision making of cross-market arbitrage opportunities are realized.

The invention provides a point cloud completion method and system based on a high-dimensional feature field and structured tensor decomposition, and belongs to the field of artificial intelligence. Comprising the following steps: encoding geometric information carried by sparse point clouds through a space geometric encoder, and distributing the geometric information to three mutually orthogonal two-dimensional feature planes and a three-dimensional feature grid to jointly form a high-dimensional feature field in which space local information is reserved; for any query point in the space, combining the space coordinates of the query point and the local features sampled in the high-dimensional feature field as input, driving a decoder based on structured tensor decomposition, and reconstructing the geometric attribute value of the query point; a continuous geometric field function implicitly defines a three-dimensional surface after completion, and point cloud completion is completed by sampling the function and extracting a zero contour surface of the function. The technical problems that when sparse and incomplete point cloud data are processed, due to information bottleneck and lack of geometric priori, the complementation quality is poor, and macrostructures and microscopic details are difficult to consider at the same time are solved.

The invention relates to the technical field of geophysical exploration, and discloses a three-dimensional fine electromagnetic detection method for ore control fracture of a deep gold ore. The method comprises the following steps: arranging a measuring point array to emit a coding artificial electromagnetic pulse signal, and synchronously receiving a plurality of induced magnetic field responses to form an original data volume; estimating a noise baseline based on statistical distribution and adaptively calibrating data; constructing a spatial correlation network by using the time sequence correlation of adjacent measuring points, and identifying a high-connectivity cluster as a suspected fracture region; extracting a regional time sequence to perform multi-level clustering, and screening a typical fracture response mode; based on the mode set global matching enhancement response, generating an enhancement data volume; multi-scale three-dimensional tensor decomposition is adopted to extract a tensor kernel component, and an electrical structure is reconstructed according to the spatial compactness and energy attenuation characteristics of the tensor kernel component; and finally, iteratively fusing with a geological constraint model to output a three-dimensional ore control fracture fine detection result. According to the method, intelligent identification and high-precision imaging of the deep fracture are realized.

The invention relates to a DAS signal positioning method based on adaptive tensor decomposition and dynamic correction. The method comprises the steps of converting phase difference data into strain rate data, constructing a three-dimensional tensor based on a time domain signal of a space point, solving an optimization problem after constraint modeling, and extracting a de-noised DAS signal. Calculating an initial fault position, and calculating an actual optical path and an apparent position after temperature change based on a thermal expansion effect and a thermo-optic effect; and a dynamic correction algorithm is set, a system coordinate reference is adaptively calibrated, and a final positioning result is calculated. According to the method, original signals are separated into a low-rank background field, a sparse event field and a structured noise field through unsupervised tensor decomposition, and the defects of dependence on labeled data and insufficient complex noise separation are overcome; by establishing a temperature-optical path coupling physical model and a dynamic correction algorithm for real-time cross-correlation calibration, positioning drift caused by environmental factors is accurately compensated, and high-fidelity denoising and accurate positioning of cable line events in a complex environment are realized.