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160 results about "Tensor decomposition" patented technology

In multilinear algebra, a tensor decomposition is any scheme for expressing a tensor as a sequence of elementary operations acting on other, often simpler tensors. Many tensor decompositions generalize some matrix decompositions. The main tensor decompositions are: tensor rank decomposition;

Adaptive network topology dynamic reconstruction method and system based on deep reinforcement learning

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.
Owner:BEIJING TAIHE LITONG TECH CO LTD

Linear complexity quantum state preparation method based on tensor decomposition and quantum circuit construction system

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.
Owner:SHENZHEN Y& D ELECTRONICS CO LTD

Hanging rope data line interaction control method based on artificial intelligence

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.
Owner:SHENZHEN MAIWO ELECTRONIC TECH CO LTD

Cable three-dimensional imaging method based on multi-modal features and physical constraints

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.
Owner:FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID

Vector hydrophone array orientation estimation method for tensor decomposition by using propagation operator

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.
Owner:YANTAI HAIXIN TUOFEI MARINE TECH CO LTD +1

Point cloud completion method and system based on high-dimensional feature field and structured tensor decomposition

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.
Owner:CHENGDU UNIV

Three-dimensional fine electromagnetic detection method for ore control fracture of deep gold ore

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.
Owner:SHANDONG INST OF GEOPHYSICAL & GEOCHEM EXPLORATION

DAS signal positioning method based on adaptive tensor decomposition and dynamic correction

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.
Owner:ZHILIAN XINNENG POWER TECH CO LTD

Safety detection early warning method and system based on vehicle OBD data and medium

The invention relates to the technical field of vehicle safety monitoring, and discloses a safety detection early warning method and system based on vehicle OBD data and a medium, and the safety detection early warning method based on the vehicle OBD data comprises the steps: collecting vehicle OBD real-time data, GPS positioning track data and environment data, and carrying out the preprocessing to form a time-space aligned multi-dimensional data set; oBD time position three-dimensional correlation features are extracted through a tensor decomposition technology; learning a mapping relation between OBD parameter change modes and safety risks in different driving scenes; constructing a space-time semantic association graph, and performing high-risk region identification through a graph convolutional network; according to the current driving situation, dynamic weighted fusion of the OBD data and the environment information is achieved, and graded early warning information is generated; a risk assessment method with context adaptability is provided, three-dimensional correlation features are extracted through a tensor decomposition technology, and complex interaction among parameters is effectively captured.
Owner:SHANDONG FOUR SEASONS AUTOMOBILE SERVICE CO LTD

Multi-source data difference attribution system and method based on tensor decomposition

The invention relates to the technical field of data processing, and discloses a multi-source data difference attribution system and method based on tensor decomposition, and the method comprises the steps: obtaining an original engineering quantity list file, and then carrying out decoupling to generate a standardized list item text sequence and an initial value set, constructing unit prices to form a tetrahedral geometric model set, mapping the tetrahedral geometric model set to a holographic feature vector space, and generating a multi-dimensional list feature vector set; constructing a standard cost reference vector field, identifying a difference vector set and generating a visual cost difference topological data model; a natural language query instruction is responded, a target difference attribution tensor is locked, a logic verification chain is constructed, and an intelligent diagnosis report is output; according to the method, a computable logic distance is established in multi-source heterogeneous data by reversely reconstructing a high-dimensional price-rate feature space, so that the problem of attribution blocking caused by dimension collapse in traditional cost auditing is effectively solved, and accurate traceability and compliance automatic diagnosis of cost differences are realized.
Owner:JIANGSU HAOPAN SOFTWARE TECH CO LTD

Aero-engine fault diagnosis method and device based on tensor decomposition and medium

The invention relates to an aero-engine fault diagnosis method and device based on tensor decomposition and a medium, and the method comprises the steps: collecting the gas path parameter time sequence data of a plurality of parts of an aero-engine, and carrying out the time alignment and working condition label labeling; for the multi-parameter data of each component, a kernel principal component analysis and automatic encoder fused feature extraction method is adopted, and parameters of different components are unified into fixed dimension features; the feature matrixes obtained after feature extraction of all the components are combined, and a time-component-feature third-order tensor is constructed; training a high-order singular value decomposition model based on the engine health monitoring data; fault diagnosis is carried out by calculating the reconstruction error of the test data and the monitoring data; and fault positioning is realized by combining core tensor difference analysis. According to the method, the problem of feature fusion of engine multi-source heterogeneous data under variable working conditions is solved, and the engine fault detection sensitivity and positioning precision are improved.
Owner:AVIC SHANGHAI AERONAUTICAL MEASUREMENT CONTROLLING RES INST

Zero-carbon comprehensive energy digital management method and equipment

The invention discloses a zero-carbon comprehensive energy digital management method and equipment, belongs to the field of energy management, and is used for solving the problem of inaccurate energy digital management regulation and control. Obtaining a dynamic carbon flow model of carbon emission space-time distribution and a dynamic carbon sink model of carbon absorption space-time change; performing coupling calculation on the dynamic carbon flow model and the dynamic carbon sink model on a unified spatial-temporal scale to fit and generate a net carbon spatial-temporal tensor of the park in a scheduling period; the net carbon space-time tensor is used for quantifying the net carbon emission of each region in each time slice in the park; tensor decomposition is carried out on the net carbon space-time tensor, and target areas which are adjacent in space but opposite in function are selected; and regulating and controlling energy supply and load demands among the target regions based on the carbon balance levels and the time dynamic modes of the target regions so as to generate a collaborative optimization strategy.
Owner:SHANDONG ENERGY VALLEY GRP CO LTD

Digital twin data processing method based on AI, electronic equipment and computer program product

The embodiment of the invention discloses a digital twin data processing method based on AI, electronic equipment and a computer program product, and belongs to the technical field of electrical data processing.The method comprises the steps that multi-source heterogeneous data is obtained and preprocessed to generate a digital twin data resource pool, the method comprises the following steps: constructing a resource-cost association topological graph, dynamically optimizing a cost edge weight through a time sequence diagram neural network, generating an adjacent matrix, carrying out cost clustering analysis, constructing a cost dimension sub-graph based on a clustering result, and fusing through a tensor decomposition algorithm to generate a multi-dimensional cost semantic mapping model. The model and historical data training are utilized to obtain an intelligent quotation generation algorithm, a real-time data resource pool and a semantic mapping model are combined, and a dynamic quotation suggestion and a quotation scheme are generated by fusing cost features through an attention mechanism. According to the embodiment of the invention, virtual-real mapping, dynamic perception and intelligent decision-making of cost management are realized, and the quotation precision and efficiency are effectively improved.
Owner:SHENZHEN YUNJING VISION TECH CO LTD

Hierarchical tensor decomposition and compression method for radial sensor network

The invention discloses a hierarchical tensor decomposition and compression method for a radial sensor network. The hierarchical tensor decomposition and compression method comprises the following steps: (1) acquiring basic data; (2) carrying out hierarchical tensor modeling; (3) decomposing in branches; (4) fusing the branches; (5) performing adaptive quantization; (6) multi-hop collaborative coding; and (7) outputting compressed data. In order to solve the three core problems of multi-hop error accumulation, insufficient redundancy utilization among branches and poor dynamic adaptability in the radial sensor network, the method provided by the invention reduces multi-hop transmission error accumulation reduction by establishing a hierarchical tensor model, graph convolution fusion among the branches and adaptive multi-hop quantization, and improves the dynamic adaptability of the radial sensor network. And the transmission efficiency and the life cycle of the radial network are obviously improved.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD

Tucker tensor decomposition-based missing value completion prediction method

The invention discloses a Tucker tensor decomposition-based missing value completion prediction method, and relates to the field of second-hand electronic product recovery evaluation result missing value research and application. The method comprises the following steps: 1) removing abnormal data based on a box plot; 2) removing the feature attributes with relatively high feature attribute missing rate; 3) searching feature attributes highly related to the recovery evaluation result value based on a mutual information mode; and 4) constructing a Tucker tensor decomposition completion model based on the training set, verifying the accuracy of the model by the test set, and finally realizing completion prediction of the missing value of the second-hand electronic product recovery evaluation result. The specific construction prediction process is divided into four small steps: initializing a sparse tensor and a factor matrix, calculating a complemented prediction tensor, calculating the difference Loss between a real tensor and the prediction tensor, descending according to a gradient, and simultaneously circulating the last three small steps until convergence. After model training is completed, the model can be directly provided for related employees to use, and therefore efficient recycling is achieved.
Owner:BEIJING UNIV OF TECH

Privacy-protection-based customer management data classification and grading method

This invention discloses a privacy-preserving method for classifying and grading customer management data, specifically relating to the fields of data processing and information security. First, it establishes a mapping relationship between sensitive attributes and observable features, and weakens the impact of sensitive attributes on features through path-level decoupling. Then, it performs subspace projection on the decoupled features, extracts distribution perturbation features, and merges them with the original features to generate an implicit risk representation tensor. A tensor decomposition method with path consistency constraints is introduced to extract consistency risk factors across subspaces. Further, a graded decision path tree is constructed based on these risk factors, and the classification process is corrected through the constraint of unidentifiable sensitive attributes. Privacy leakage metrics are generated through counterfactual reconstruction analysis, and the decision path tree is structurally backtracked and optimized to obtain the final graded classification result. This invention effectively reduces the risk of sensitive attribute leakage while ensuring classification accuracy, thus improving the privacy protection capability of the data grading process.
Owner:NANJING YITABLE AESTHETIC EDUCATION CULTURE TECH CO LTD

Large model operation environment adaptive deployment method based on strategy optimization

The invention discloses a large model operating environment adaptive deployment method based on strategy optimization, and the method specifically comprises the steps: S1, collecting the computing power capacity, the video memory capacity, the communication bandwidth and the communication time delay of a computing node, and constructing an operating environment diagram structure; s2, constructing a node set and an edge set, configuring state feature vectors, and forming a topological calculation graph; s3, performing multi-scale filtering and persistent coherence calculation on the topology calculation graph to generate a topology gating vector; s4, generating a candidate calculation structure set under the limitation of the topology gating vector; s5, configuring different rank parameters for the weight tensor according to topology complexity distribution, and executing tensor decomposition; s6, performing tensor re-parameterization on the candidate calculation structure to form a large model calculation structure; and S7, mapping the large model calculation structure to a calculation node to complete deployment execution. According to the method, topological gating and heterogeneous rank tensor decomposition are introduced, and self-adaptive deployment of the structure constrained by the environment is achieved.
Owner:NANJING TECHN COLLEGE OF SPECIAL EDUCATION

A sandstone cultural relic weathering evaluation method based on physical-manifold collaborative driving of multi-source heterogeneous data fusion

This invention discloses a method for assessing the weathering of sandstone artifacts based on the fusion of multi-source heterogeneous data driven by physical-manifold collaboration, belonging to the field of cultural relic protection technology. Addressing the contradiction that surface spectral data of sandstone artifacts is dense but cannot probe the interior, while internal physical data is accurate but extremely sparse and lossy, this invention proposes a "surface-to-interior" fusion strategy. First, using a physical information deep learning model, physical partial differential equations are introduced as prior constraints to extrapolate sparse point data into a continuous deep physical tensor across the entire field, achieving a "penetrating" effect. Second, based on Riemannian manifold geometry, spectral-physical enhancement features are mapped to the tangent space to extract noise-resistant surface manifold features. Furthermore, through coupled tensor decomposition, deep mechanisms and surface properties are forcibly aligned in the latent feature space. Finally, a high-order Laplacian hypergraph model is used to achieve pixel-level classification of weathering degree. This method effectively solves the problems of spatial scale mismatch and missing physical mechanisms in multi-source data, achieving a non-destructive, full-field, and accurate quantitative assessment of the weathering status of cultural relics.
Owner:CHONGQING UNIV

Monitoring video compression storage method

The invention relates to the technical field of image communication transmission, in particular to a monitoring video compression storage method. The method comprises the following steps: acquiring a frame sequence of a monitoring video and constructing a three-dimensional video tensor; for any coordinate position in any frame of image, calculating the time sequence disorder degree of the coordinate position and the structural consistency of the coordinate position; the adaptive weight of each coordinate position is calculated based on the local structure consistency, an adaptive weight matrix is constructed, and each weight value is inversely proportional to the local structure consistency of the corresponding coordinate position; a weighted low-rank tensor decomposition algorithm is adopted to process the three-dimensional video tensor, a low-rank background tensor and a sparse foreground tensor are obtained, and the adaptive weight matrix is used for applying spatially variable sparsity constraint to the sparse foreground tensor; and compressing and storing the low-rank background tensor and the sparse foreground tensor respectively. The method has the effect of improving the image compression efficiency and fidelity.
Owner:GUANGZHOU WEIBANG VEHICLE EQUIP

Indoor intrusion detection method, system and equipment based on Wi-Fi channel state information

The invention relates to the technical field of wireless communication and intelligent sensing, in particular to an indoor intrusion detection method, system and device based on Wi-Fi channel state information. The method comprises the following steps: acquiring original channel state information (CSI) data; preprocessing the data and then constructing a third-order tensor representing the phase difference between the antennas, wherein the dimensions comprise time, subcarriers and antenna pairs; performing low-rank tensor decomposition on the third-order tensor to obtain a factor matrix; integrating components in the factor matrix by using an autocorrelation function and dynamic time warping to generate a joint feature vector; and inputting the joint feature vector into a trained and improved two-way long-short-term memory network model based on an attention mechanism, and outputting a classification result of intrusion activity categories. According to the method, the domain structure information of the CSI data is completely reserved through multi-dimensional feature joint extraction and representation, the feature expression ability, the model robustness and the generalization ability in different environments are remarkably improved, and refined multi-category intrusion recognition is achieved.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Hepatitis B antibody pattern classification method based on plasma protein profile

PendingCN122310281AProtein profilingMedical laboratory
This invention relates to the field of bioinformatics processing and medical laboratory data analysis, specifically a method for classifying hepatitis B antibody patterns based on plasma protein profiles. The method includes: acquiring host hardware information of the execution environment and extracting central processing unit (CPU) cache parameters; acquiring a high-dimensional sparse one-dimensional array and extracting non-zero feature indices; performing mapping calculations using a locality-sensitive hashing (LSH) algorithm to reconstruct the data into a locally dense two-dimensional matrix; dynamically segmenting the data into independent sub-blocks according to cache parameters and initial segmentation dimensions; performing low-rank tensor decomposition on the independent sub-blocks to extract local latent feature vectors; concatenating the sub-blocks, weighting them through a single-layer attention network, and inputting the result into a classifier function to output a target classification pattern vector; and generating dimension update instructions based on a preset dynamic adjustment mechanism to adjust subsequent segmentation dimensions. This invention achieves lower memory peaks, higher cache hit rates, and stable multi-label pattern output capabilities.
Owner:YUNNAN UNIV

Method and system for identifying and updating old city pattern based on multi-source data fusion

The invention provides an old city pattern recognition and updating method and system based on multi-source data fusion, and the method comprises the steps: collecting a multi-source data set, analyzing n-hour activity cycle characteristics, and generating a time period thermodynamic diagram; identifying a community structure by using a graph neural network, outputting social topology, and quantifying a texture evolution track by using a dynamic attitude model; quantizing the traditional spatial pattern by using a landscape sight line algorithm, and outputting a dynamic pattern recognition result; and configuring aging facilities by using a population adaptation algorithm, optimizing industrial layout by using a location entropy algorithm, and generating a micro-update scheme. According to the method, a space-time-society-ecology four-dimensional dynamic pattern recognition system is constructed; spatial pattern quantization and weight adjustment are realized by innovatively using a landscape sight line algorithm, and the traditional limitation is broken through; and finally, a tensor decomposition algorithm is used for fusing the configuration and optimization scheme, a micro-update scheme is generated, an update strategy is formed through iterative optimization, complex requirements are accurately responded, and the old city pattern recognition scientificity and the update scheme implementation efficiency are improved.
Owner:CHINA ACAD OF URBAN PLANNING & DESIGN

A vehicle limit control method based on hybrid-order koopman tensor decomposition and CBF fusion

This invention relates to the field of vehicle control technology, specifically to a vehicle limit control method based on hybrid-order Koopman tensor decomposition and CBF fusion. The method involves acquiring the motion state of the target vehicle and estimating its motion state at the next moment. Based on the motion state at the next moment, the tire forces of the target vehicle are determined. The state vector of the target vehicle is determined according to the motion state at the next moment and the tire forces, and a control input vector is defined. Based on the state vector and the control input vector, a first-order linear Koopman model, a second-order bilinear Koopman model, and a third-order higher-order Koopman model are constructed. The weights of each Koopman model are determined based on a comprehensive index of the severity of the target vehicle's operating conditions. The prediction results of each Koopman model are calculated, and a fused prediction result is determined based on the weights of each Koopman model. A nominal controller is constructed based on the affine form of the fused prediction result. The nominal controller is solved to determine the control input vector at the current moment for controlling the target vehicle.
Owner:CHONGQING VEHICLE TEST & RES INST CO LTD

Intelligent agent anthropomorphic interaction method and system based on cognitive graph tensor decomposition

The invention provides an agent anthropomorphic interaction method and system based on cognitive graph tensor decomposition, and the method comprises the steps: receiving multi-modal input data issued by a user, converting the multi-modal input data into structured cognitive elements, and quantifying the cognitive elements into mathematical expressions, so as to obtain a three-dimensional cognitive graph tensor; decomposing the three-dimensional cognitive schema tensor to obtain a core tensor and a factor matrix; performing double-graph mapping based on the core tensor and the factor matrix to obtain a deep intention recognition result and a topic strategy; the anthropomorphic natural language response is generated and output based on the deep intention recognition result and the topic strategy, smooth transition of topics can be achieved, the embarrassment of'rigid turning 'of a traditional dialogue robot is avoided, and anthropomorphic experience is improved.
Owner:JIANGXI BRAIN CONTROL TECH CO LTD

IPTV video quality enhancement method and system

The invention relates to an IPTV video quality enhancement method and system, and relates to the technical field of video quality, and the method comprises the following steps: carrying out the inter-frame separation of an IPTV video stream, and obtaining a video frame sequence and inter-frame time sequence features; performing adaptive color gamut mapping on the video frame sequence based on the inter-frame time sequence characteristics to obtain color reconstruction sequence data; performing tensor decomposition and recombination on the color reconstruction sequence data to obtain a multi-dimensional texture feature map; performing dynamic bit depth optimization on the multi-dimensional texture feature map to obtain a high bit depth video data stream; and performing inter-frame dynamic compensation synthesis based on the high-bit-depth video data stream to obtain a quality-enhanced video output stream, thereby solving the technical problem that the enhanced video flickers, jumps or is distorted in detail in the motion process due to the fact that the temporal correlation between frames is often ignored in the prior art.
Owner:JIANGXI RADIO & TELEVISION INTELLIGENT MEDIA TECHNOLOGY CO LTD

Image reconstruction method and device based on collaborative block term tensor decomposition, equipment and medium

The invention discloses an image reconstruction method and device based on collaborative block term tensor decomposition, equipment and a medium, and relates to the technical field of signal processing. The method comprises the steps that an original tensor is decomposed into the sum of a plurality of low-rank terms, each low-rank term is decomposed based on a collaborative block term tensor, a low-rank decomposition model of the original tensor is obtained, and N mode factor matrixes of each low-rank term are expressed through a shared factor matrix and an independent factor matrix; constructing a reconstruction task model based on the low-rank decomposition model, and solving the reconstruction task model through an optimization algorithm to obtain a solution of each factor matrix; and substituting the solution of each factor matrix into the low-rank decomposition model to obtain a reconstructed image. According to the method, different low-dimensional items interact through a sharing factor mechanism, so that the reconstruction effect is improved; and meanwhile, computing resources are greatly reduced.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Remote sensing feature knowledge graph construction method based on cooperation of geographical object geometric features and graph enhanced retrieval

ActiveCN121638430BSolve the problem of semantic confusionOther databases indexingKnowledge representationPattern recognitionData set
The application discloses a remote sensing ground object knowledge graph construction method based on cooperation of geographical object geometric features and graph enhancement retrieval, and comprises the following steps: data set preparation; basic triple extraction and feature analysis; LLM-assisted semantic and relationship enhancement; flexible quantization and output of ground object knowledge graph knowledge; knowledge conflict correction and final version graph construction. The application utilizes a tensor decomposition model to train a ground object knowledge graph to obtain a knowledge graph embedding vector, and through an unsupervised / semi-supervised mode, utilizes a low-dimensional vector representation of a ground object category learned from a knowledge graph triple to embed the semantic relationship among categories in the knowledge graph embedding vector, so as to provide global semantic prior knowledge for a downstream model, and effectively solve the semantic confusion problem in a remote sensing image.
Owner:HUNAN UNIV OF SCI & TECH +1

Three-dimensional scene atlas room classification method and system based on multi-modal feature tensor

The invention relates to the technical field of artificial intelligence, in particular to a three-dimensional scene atlas room classification method and system based on a multi-modal feature tensor, and the method comprises the steps: carrying out the feature extraction of scene observation data through a plurality of different pre-training models, and organizing a feature matrix set; tensor decomposition is carried out on the set, a common observation-category incidence matrix and a feature-category factor matrix corresponding to each model are synchronously obtained, and the decomposed rank is automatically determined as the number of room categories. And fusing the prototype features in each factor matrix to form category prototype representation, and distributing the most matched semantic tag for each potential category by calculating the semantic similarity between the category prototype representation and a predefined room type tag. And determining a room category to which each observation belongs according to the observation-category incidence matrix, and endowing a corresponding type label to a room layer node in the three-dimensional scene map, thereby completing automatic and interpretable construction of room layer semantic information.
Owner:SHANDONG NEW GENERATION INFORMATION IND TECH RES INST CO LTD

Remote sensing ground object knowledge graph construction method based on cooperation of geographic object geometric features and graph enhancement retrieval

The invention discloses a remote sensing ground object knowledge graph construction method based on geographic object geometric features and graph enhancement retrieval collaboration. The method comprises the following steps: preparing a data set; basic triple extraction and feature analysis are carried out; semantic and relation enhancement assisted by LLM; flexible quantification and output of knowledge of the ground object knowledge graph; and correcting knowledge conflicts and constructing a final edition map. According to the method, a tensor decomposition model is used for training a ground feature knowledge graph to obtain a knowledge graph embedded vector, through an unsupervised / semi-supervised mode, low-dimensional vector representation of ground feature categories is learned from a knowledge graph triple, the knowledge graph embedded vector is used for embedding a semantic relationship between categories, global semantic priori knowledge is provided for a downstream model, and the global semantic priori knowledge is provided for the downstream model. And the semantic confusion problem in the remote sensing image is effectively solved.
Owner:HUNAN UNIV OF SCI & TECH +1

Visual SLAM algorithm based on multi-scale neural tensor representation

The invention provides a visual SLAM (Simultaneous Localization and Mapping) algorithm based on multi-scale neural tensor representation, which belongs to the technical field of indoor scene real-time reconstruction, and can efficiently capture the global structure and fine details of a scene by utilizing a tensor decomposition technology, and reduce the memory usage amount and the calculation overhead at the same time. In addition, the invention further introduces an efficient pixel-based color query method, and each pixel only needs neural network forward regression once in the method, so that the real-time performance of the neural radiation field-based SLAM (Simultaneous Localization and Mapping) is further improved. Experiments on a synthetic data set and a real data set show that the method is superior to the most advanced method in the aspects of reconstruction quality and camera tracking precision, and the efficiency in the aspects of running time and memory use is very high.
Owner:YIMEN COPPER CO LTD