Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

81 results about "Sparse model" patented technology

Sparse modeling is a rapidly developing area at the intersection of statistical learning and signal processing, motivated by the age-old statistical problem of selecting a small number of predictive variables in high-dimensional datasets.

Submerged arc furnace intelligent inspection system based on cloud side end cooperation

A submerged arc furnace intelligent inspection system based on cloud side-end cooperation belongs to the technical field of submerged arc furnace intelligent robot inspection, and comprises an end side device, an edge side platform, a cloud platform and a cross-layer cooperative processing module, the end side device is in communication connection with the edge side platform, and the edge side platform is in communication connection with the cloud platform; and the cross-layer cooperative processing module is used for intelligently deploying global resources of the end-side equipment, the edge-side platform and the cloud platform, predicting a future load trend by adopting a dynamic sparse LSTM model algorithm, inputting a prediction result into a security constraint PPO reinforcement learning algorithm to adaptively adjust a task and a computing power allocation proportion, and carrying out dynamic resource allocation according to an output result. According to the invention, the cross-layer cooperative processing module interacts and communicates with the cloud side, the edge side and the end side, so that a dynamic allocation strategy of resources is realized, and the problems of low resource utilization rate and poor real-time performance caused by a rigid resource allocation strategy during routing inspection are avoided.
Owner:HARBIN BOSHI AUTOMATION CO LTD

Large model lightweight reasoning deployment method under limited hardware resources

The invention provides a large model lightweight reasoning deployment method under limited hardware resources, and the method comprises the steps: quantifying the weight importance of a large model through a composite index of gradient sensitivity and activation frequency, and carrying out pruning operation in combination with an improved index weighted moving average strategy, thereby obtaining a structured sparse model; the sparse model is divided into sub-networks by adopting double rules, a routing decision network is trained, and an adaptive feature shunting architecture model is constructed; a multi-precision weight set is generated through a nested quantization technology, quantization bit width is dynamically adjusted, and edge equipment hardware parameters are adapted to complete reasoning environment initialization; after a reasoning request is received, an optimal sub-network is selected based on the trained routing decision network, corresponding weights are loaded in parallel, and a reasoning result is fused and output; and converting a reasoning result format, and dynamically optimizing a scheduling strategy based on a system real-time monitoring index. The method is compatible with a mainstream large model and a hardware platform, and an efficient and universal deployment scheme is provided for end-side AI engineering landing.
Owner:CHENGDU MINGTU TECH CO LTD

Power adaptive digital pre-distortion method, system and device based on sparse GRU and medium

The invention discloses a power adaptive digital pre-distortion method, system and device based on sparse GRU and a medium. The method comprises the steps that input and output signals under different powers are collected, a composite feature vector is constructed through amplitude normalization and phase alignment, and a pre-distortion training target is generated in combination with indirect learning; constructing a sparse GRU neural network, introducing L1 regularization constraint, and obtaining a sparse pre-distortion model through joint optimization of mean square error and sparse constraint; partial weight updating is realized based on power grading, and weight fusion output is carried out during power interval switching so as to complete power adaptive optimization; pruning and compressing the sparse GRU model and then deploying the sparse GRU model in a pre-distortion module to compensate the nonlinearity of the power amplifier; according to the method, the model complexity is reduced through rarefaction, the dynamic working condition stability is improved through a power adaptive mechanism, pruning compression adapts to low-power-consumption hardware, high precision, low complexity and adaptive capacity are considered, and the method is suitable for the low-power-consumption and high-performance requirements of a broadband wireless communication system.
Owner:XIDIAN UNIV

Lightweight distributed model aggregation method applied to low-power-consumption chip of Internet of Things

The invention relates to the technical field of the Internet of Things, in particular to a lightweight distributed model aggregation method applied to a low-power-consumption chip of the Internet of Things, and is suitable for an Internet of Things system composed of a cloud server and a plurality of edge nodes. Each edge node learns an optimal strategy from offline data, and meanwhile, a complex teacher model is compressed into a lightweight student model through a knowledge distillation technology, so that the local calculation burden is reduced. And each edge node uploads quantized and sparse model parameters to the cloud server, and the cloud server performs federal aggregation by adopting a weighted average method to generate a global model and feeds back the global model to each terminal on the premise of ensuring data security. In order to adapt to the practical application of a low-power-consumption chip, a dynamic voltage frequency regulation technology is introduced in the hardware level, and the energy consumption and the communication overhead are effectively reduced. According to the method, the model training process of the edge nodes of the Internet of Things is optimized, and federated learning of privacy protection, efficient communication and cooperative self-adaption is realized.
Owner:XIDIAN UNIV

Intelligent prediction method for intelligent jacking construction progress of bent cap

The invention relates to the technical field of intelligent construction, and discloses a bent cap intelligent jacking construction progress intelligent prediction method, which comprises the following steps: collecting multi-source real-time data such as equipment, structure, personnel and environment in a construction process, and calculating a construction entropy for measuring system uncertainty; establishing a causal state evolution model, and predicting the evolution trend of the construction entropy in a future time period; and when it is predicted that a construction progress disturbance risk exists, performing anti-fact deduction based on the model or the dynamically trimmed sparse model thereof, and generating and recommending an optimal adaptive correction strategy. According to the method, the overall uncertainty of the construction system is quantified into the construction entropy, and the prospective deduction capability of the causal state evolution model is combined, so that the conversion from the risk passive response depending on experience to the data-driven beforehand active early warning and optimal decision recommendation is realized; and improvement of scientificity, foresight and timeliness of construction risk management is facilitated.
Owner:SUZHOU TRAFFIC ENG GRP CO LTD

Sparse Transform model reasoning acceleration method based on GPU platform

The invention provides a sparse Transform model reasoning acceleration method based on a GPU platform, and the method comprises the steps: building a first storage format in a sparse Transform model, and carrying out the coding of a sparse mask of any type through the first storage format; wherein the first storage format comprises an inner layer block and an outer layer block; an outer layer block adopts a block compression sparse row structure, and row pointers and column indexes of a completely effective block and a partially effective block are recorded; the inner layer block adopts an unsigned 64-bit integer value bitmap and is used for representing masks in the block; based on the sparse mask matrix coded by the first storage format, performing sparse calculation on the query, the key and the value, and outputting a corresponding context vector; compared with a traditional sparse mask storage structure in the prior art that calculation sparsity and memory access regularity are difficult to consider when the masks present random, global or mixed distribution characteristics, the method has the advantages that support for any type of masks is achieved, storage overhead is reduced, memory access continuity is improved, good GPU parallelism is kept, and thread divergence and memory access conflicts are avoided.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Shape memory alloy soft actuator control method based on data-driven modeling

The application relates to a shape memory alloy soft driver control method based on data-driven modeling, which comprises the following steps: measuring and collecting input and output data of a shape memory alloy soft driver as sample data; designing an asymmetric activation function containing a hysteresis characteristic, constructing a neural network structure and selecting corresponding parameters, combining sample data and an improved gradient algorithm for iterative training, simultaneously introducing L1 regularization to generate a sparse model, and obtaining a soft driver theoretical model; inputting current soft driver corresponding input data into the soft driver theoretical model, outputting corresponding simulation output data, and controlling the soft driver according to the simulation output data. Compared with the prior art, the application adopts a neural network model, combines an improved nonlinear activation function and a gradient descent algorithm, improves the modeling accuracy and robustness of a hysteresis system, and effectively improves the subsequent control effect.
Owner:SHANGHAI UNIV

Gene sequencing data analysis method and device, computing equipment and readable storage medium

The embodiment of the invention provides a gene sequencing data analysis method and device, computing equipment and a readable storage medium, and belongs to the field of data processing. The gene sequencing data analysis method is applied to user equipment, and comprises the following steps: encoding gene sequencing data of a user to obtain a plurality of gene sequencing plaintexts corresponding to the gene sequencing data; encrypting each gene sequencing plaintext by using the public key to obtain a plurality of gene sequencing ciphertexts; sending the gene sequencing ciphertext to a server; receiving a gene sequencing data analysis result ciphertext sent by the server; and decrypting the gene sequencing data analysis result ciphertext by using the private key, and determining a gene sequencing data analysis result of the user. And the user equipment sends the plurality of encrypted gene sequencing ciphertexts to the server, so that the privacy leakage of the user is avoided. And the server performs data analysis by using the preset sparse model, and processes the to-be-detected gene sequencing ciphertext, so that the gene sequencing data analysis efficiency is improved.
Owner:SANSURE BIOTECH INC

GIS latent insulation fault diagnosis method and system under strong noise

The invention belongs to the technical field of GIS fault detection, and discloses a GIS latent insulation fault diagnosis method and system under strong noise, and the method achieves the omnibearing signal capture through synchronously obtaining optical, mechanical, electrical and acoustic signals, and solves a problem of weak signal leak detection. For strong noise interference, noise and fault characteristic frequency bands are effectively separated by using multi-modal signal difference and constructing a time domain and wavelet domain cascaded double-layer dictionary. A discriminative sparse model is combined with a K-SVD algorithm to carry out end-to-end iterative optimization, sparse features with higher discriminative force are automatically mined, and the problem of deep feature mining is solved. For the problem of weak generalization ability of small samples, a classifier error term is introduced into an objective function, a joint optimization objective function fusing reconstruction and classification errors is constructed, dictionary learning and classifier training are combined into one, the generalization ability of the model is significantly enhanced, and the method is suitable for large-scale popularization and application. Therefore, timely and accurate identification of the latent insulation fault under the conditions of strong noise and small samples is realized.
Owner:XI AN JIAOTONG UNIV

Acceleration method and device based on irregular sparse model, electronic equipment and medium

The embodiment of the invention discloses an acceleration method and device based on an irregular sparse model, electronic equipment and a medium. A specific embodiment of the method comprises the steps of inputting a sparse model into a target compiler; in the layer intermediate representation, splitting a sparse weight matrix of the sparse model into sparse sub-blocks to obtain a split sparse weight matrix; based on a sparse operator performance model, generating attribute information of each sparse sub-block in the split sparse weight matrix; in the block layer intermediate representation, according to the attribute information of each sparse sub-block, performing fusion processing on each sparse sub-block; in operator layer intermediate representation, according to attribute information corresponding to each sparse block, mapping each sparse block and a calculation unit to obtain a mapping result; and generating a processing task corresponding to the sparse model according to the mapping result, and executing the processing task. According to the embodiment, end-to-end optimization is realized through multi-layer optimization, and the income boundary of the traditional irregular sparse acceleration design is broken through.
Owner:SHANGHAI QI ZHI INSTITUTE

High-precision measurement method for size of ABS (Acrylonitrile Butadiene Styrene) plate mold

The invention relates to the technical field of size measurement, in particular to a high-precision measurement method for the size of an ABS plate mold, and the method comprises the steps: scanning the surface of the ABS plate mold twice, respectively obtaining all point cloud data and all sparse point cloud data, and respectively constructing a three-dimensional mold model and a three-dimensional sparse model, performing spatial calibration on the three-dimensional mold model, and dividing the three-dimensional mold model into a plurality of component models; and calculating the space deviation value, the reflection deviation value, the adjustment coefficient and the adjusted filtering radius of each part model, filtering the point cloud data on all the part models by combining a filtering algorithm to obtain a reconstructed three-dimensional mold model, and measuring the size of the ABS plate mold. By dynamically adjusting the filtering radius of the filtering algorithm, the deviation influence caused by the reflectivity difference of different materials in the ABS plate mold is effectively reduced, and the precision and accuracy of size measurement of the plate mold are improved.
Owner:ZHEJIANG JIEWEI PRECISION MASCH CO LTD

Sparse array flexible ultrasonic transducer design and manufacturing method

The invention discloses a method for designing and manufacturing a flexible ultrasonic transducer of a sparse array, and relates to the technical field of transducer manufacturing, a sparse model taking array element number-imaging quality-cost as a target is constructed, and a genetic algorithm is utilized to carry out non-uniform array element arrangement optimization; positive and negative electrodes are manufactured by adopting a microelectronic printing technology, an S-shaped negative electrode loop is designed to reduce crosstalk, PDMS is spin-coated in a layered manner to realize light and thin packaging, and acoustic impedance matching and bendability are improved in combination with a flexible backing material; the method comprises the following steps: simulating a wearing scene, identifying an ultrasonic signal distortion rate, calculating a signal-to-noise ratio and a resolution ratio in real time based on pulse echo data, adjusting an array element driving phase through feedback, and carrying out dynamic calibration optimization. According to the flexible ultrasonic transducer, the imaging performance and reliability are remarkably improved while the manufacturing cost is reduced through sparse, multi-objective optimization and dynamic calibration technologies, and the applicability of the flexible ultrasonic transducer in the fields of wearable medical treatment, industrial detection and the like is expanded.
Owner:JILIN UNIVERSITY

Large language model reasoning-oriented sparse reasoning method, system, equipment and product

The invention discloses a sparse reasoning method, system, equipment and product for large language model reasoning, and relates to the technical field of artificial intelligence. The method comprises the following steps: firstly, acquiring a weight matrix of a large language model, and then carrying out pruning sparsification processing on the weight matrix to obtain a sparse matrix; the storage format of the sparse matrix is converted into a bitmap coding storage format which is suitable for tensor calculation core perception and adopts a multi-level block structure to respectively correspond to different calculation granularities in a GPU / NPU hardware architecture so as to obtain a sparse model, and then the sparse model is deployed to respond to a reasoning request to perform reasoning service; sparse matrix multiplication is completed through a sparse matrix multiplication kernel based on on-chip storage bitmap coding so as to perform reasoning, so that through an innovative sparse matrix storage format and calculation optimization, the storage efficiency and the calculation performance in the reasoning process are remarkably improved, and especially in a low-sparseness scene, the reasoning efficiency is greatly improved. And the performance blank of the existing sparse reasoning framework in the field is filled.
Owner:HEBEI TSINGHUA DEV RES INST

Personalized federal learning method and system based on client clustering and sparse pruning

The invention discloses a personalized federal learning method and system based on client clustering and sparse pruning, and the method comprises the steps: firstly constructing a central server-multi-client frame, initializing a full-size cluster model, a channel mask and an incremental pruning rate, and configuring SGD training, network slimming compression and encrypted transmission; performing dynamic re-clustering in each round of training, executing channel-level pruning by the client by using cluster structure information, performing local fine tuning, and uploading a sparse model; and the server carries out channel fusion on the model, and arithmetic averaging is carried out on the shared channel weight to generate a unified cluster model to be issued. After the target pruning rate is reached, the client continues personalized training and uploads, the server only executes FedAvg in the shared channel, the private channel keeps the original weight, and heterogeneous aggregation is achieved. A lightweight model with shared knowledge and private features can be obtained through iteration, the communication and storage overhead is remarkably reduced, and the method is suitable for a privacy-friendly intelligent reasoning scene of resource-constrained edge equipment.
Owner:EAST CHINA NORMAL UNIV

Rapid deployment of deep neural networks (DNNS) for edge computing via structured pruning at initialization

A method, system, and transitory computer-readable media for providing rapid deployment of Deep Neural Networks (DNNs) for Edge Computing using Structured Pruning at Initialization (SPaI). An input of a dense model and a pruning amount is received. Unstructured Pruning (UP) of the input model is performed by the pruning amount to generate a sparse model pruned by the pruning amount. The sensitivity of each layer of the sparse model to pruning is evaluated by contrasting a sparsity of the sparse model with an average sparsity of a global model to generate a structured pruning plan. The structured pruning plan is applied to the resilient layers. A remaining sensitive layers are reinitialized to produce an initialized model pruned by the pruning amount. The initialized model pruned by the pruning amount is provided as an output.
Owner:RAKUTEN MOBILE INC

A deep learning channel estimation method and device suitable for underwater acoustic sensor networks

The application relates to a deep learning channel estimation method and device suitable for an underwater acoustic sensor network. The method utilizes OFDM pilot data to establish a sparse signal model, and obtains a real-value sparse model by performing real-value transformation on the sparse signal model. An approximate message passing (AMP) estimation framework is introduced to realize preliminary recovery of channel information. Further, a model-driven deep learning framework is proposed. An ST-LAMP network based on AMP without considering sparse prior and a GGM-LAMP network considering sparse prior are respectively established. Network training is respectively performed according to a predetermined strategy. Optimal matching parameters are learned through data learning and are updated and fixed. Correct channel estimation values can be output through input of new measurement values. The problem that traditional empirical parameter setting cannot be applied to high complexity of an underwater acoustic channel, leading to deviation of channel estimation from an actual channel, is solved. The precision of channel estimation is improved. The channel estimation method has the characteristics of low complexity and strong self-adaptability.
Owner:XIAMEN UNIV

Image registration method based on grouped motion estimation and neighborhood refinement sampling

The invention discloses an image registration method based on grouped motion estimation and neighborhood refining sampling. The method comprises the following steps: constructing an image registration network comprising a shared feature extraction module, a sparse motion module and a dense motion module; a source image and a target image are obtained to train the image registration network, and shared feature extraction, grouping motion estimation and neighborhood refining sampling are sequentially carried out until a loss function converges to complete training; a to-be-registered source image and a target image thereof are processed through a network, and finally a registration motion stream is obtained to register the target image to the source image. According to the method, sparse modeling is carried out on input features by introducing grouping motion estimation, the local deformation expression ability is enhanced in combination with an adaptive fusion mechanism, meanwhile, a neighborhood refining sampling method is designed, a learnable local weighted correction mechanism is introduced in the motion flow sampling process, and the local deformation expression ability is improved. The boundary definition and detail precision of the dense motion field are effectively improved, and the precision and robustness of image registration are remarkably improved.
Owner:ZHEJIANG UNIV

Systems and methods for recovering implicit physics model under real world constraints

Examples including a system described herein implement a novel liquid time constant neural network (LTC-NN) based architecture to recover an underlying model of physical dynamics from real world data. The automatic differentiation property of LTC-NN nodes overcomes problems associated with low sampling rate, the input dependent time constant in the forward pass of the hidden layer of LTC-NN nodes creates a massive search space of implicit physical dynamics, the physics model solver based data reconstruction loss guides the search for the correct set of implicit dynamics, and drop out in dense layer ensures extraction of the sparsest model. Further, to account for perturbation timing error, the LTC-NN based architecture of the system utilizes dense layer nodes to search through input shifts that results in the lowest reconstruction loss.
Owner:THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA

Communication-efficient federated learning method based on compressed sensing

The present invention provides a communication-efficient federated learning method based on compressed sensing, which can be summarized as follows: first, dictionary learning is performed using a quasi-validation dataset held by the server to learn a sparse representation of the model parameters; then, an adaptive compression ratio selection algorithm is used to determine the appropriate compression ratio based on the model training loss; finally, the linearity of compression is exploited on the server side to reduce the computational cost of global model recovery from n times to one execution of the reconstruction algorithm; in addition, the computational cost of compression is reduced through layered compression. With the present invention, non-sparse model parameters can be effectively compressed and accurately reconstructed, supporting not only uplink and downlink compression but also reducing overall communication costs without compromising test accuracy. Experiments on three image classification tasks demonstrate that our method consistently outperforms existing methods, achieving high reconstruction accuracy even when using a small quasi-validation dataset to learn the sparse dictionary.
Owner:DONGHUA UNIV

Short-wavelength residual static correction method based on target reconstruction algorithm

The invention provides a short-wavelength residual static correction method based on a target reconstruction algorithm, and belongs to the technical field of seismic data processing. Comprising the following steps: modeling seismic data, expressing the seismic data as a form of a plurality of waves, conforming to a target sparse model, and assuming that the target sparse model contains a plurality of targets and is accompanied by noise; target decomposition is carried out on the seismic data containing the noise and reconstruction is carried out by adopting an iteration method, one target is reconstructed each time, and residual errors after decomposition are continuously decomposed until reconstruction of all targets is completed; the minimization problem of the target reconstruction process is converted into a regularization optimization problem with constraint conditions; and solving a quadratic optimization problem about the target to obtain a minimum value depending on a shift vector, and completing short-wavelength residual static correction by solving the maximum weight from the vertex 1 to the vertex N + 1 in the K approximate graph and reconstructing the shift vector. The invention provides the residual static correction method with robustness in combination with the properties of the seismic data under the condition that the calculation cost is not increased.
Owner:HARBIN INST OF TECH

Garment design system and method based on artificial intelligence

The invention provides a costume design system and method based on artificial intelligence, and relates to the field of artificial intelligence, and the method comprises the steps: collecting multi-dimensional design data through a cloud collaborative architecture of costume design resources; performing dynamic hierarchical allocation on the multi-dimensional design data to obtain a hierarchical allocation result, and performing sparse processing on the multi-dimensional design data to obtain a sparse model of the costume design resources; performing strategy training based on deep reinforcement learning on the sparse model according to a hierarchical distribution result and historical collaborative data to obtain a sharing strategy and an optimized migration parameter; constructing a knowledge migration component of the cloud collaborative architecture based on the sharing strategy and the optimized migration parameters; knowledge migration optimization is carried out on the collaborative process of the costume design resources based on the knowledge migration component through the cloud collaborative architecture, the costume shared resources for intelligent generalization are generated, dynamic hierarchical distribution and knowledge migration optimization can be carried out on the costume design resources, and intelligent generalization sharing of the costume design resources is achieved.
Owner:HUNAN ARTS & CRAFTS VOCATIONAL COLLEGE

Data transmission and processing method and device and electronic equipment

The embodiment of the invention provides a data transmission method and device, a data processing method and device and electronic equipment, and aims to improve the processing efficiency during data transmission and parallel computing. The method comprises the following steps: for each to-be-transmitted data packet, performing structured sparse processing on the to-be-transmitted data packet through a data sparse model deployed at an initiating node; evaluating the data quality of each processed to-be-transmitted data packet to obtain the quality score of each to-be-transmitted data packet; the quality score is used for representing the proportion of effective data in the to-be-transmitted data packet; according to the quality score corresponding to each to-be-transmitted data packet, sequentially transmitting each to-be-transmitted data packet to the corresponding path node; and for each path node, determining respective semantic importance of each to-be-transmitted data packet received by the path node, and transmitting each to-be-transmitted data packet to a corresponding destination node according to each semantic importance.
Owner:SHENZHEN DIYIXIAN COMM CO LTD

A method for integrated detection of in-pipe acoustic modes considering abnormal gain of microphones

The application relates to the technical field of aero-engine aerodynamic acoustic detection, and discloses a pipe-in-sound mode integrated detection method considering abnormal gain of a microphone, which comprises the following steps: a microphone array unit, a rotating speed detection unit and a signal acquisition module are built to realize data acquisition; a core algorithm unit is built, a joint sparse model is constructed based on a blade passing frequency calculated from rotating speed data, and super parameter adaptive updating is completed through an EM algorithm until the super parameter meets a convergence condition; a mode coefficient matrix and an abnormal gain matrix are extracted based on the converged super parameter, elements of the abnormal gain matrix are arranged in ascending order, and the position of an abnormal microphone is determined according to a preset threshold; subsequently, channel data corresponding to the abnormal microphone is removed, and the mode coefficient is re-inverted by using a Bayesian compressive sensing method; and a standardized detection report is output by the system. The method realizes high-precision mode recognition and abnormal detection, does not need manual intervention, and improves detection efficiency and robustness.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

A method and apparatus for training a post-sparse benchmark evaluation

The application discloses a kind of training after sparse benchmark evaluation method and device.The method constructs a precise evaluation system by five indexes: sparse distribution mode, reconstruction technology, model architecture accuracy, size robustness and different task accuracy. After the original model is sparsified using the standardized sparse paradigm, the sparsification performance of the model is evaluated using these indexes. This method can compare different post-training sparse models horizontally, comprehensively evaluate the performance of the model from both the algorithm and the model, and distinguish the impact of sparsification and reconstruction on performance, as well as the impact of architecture, size or task on sparsification performance. Using the present application, not only the model compression efficiency is improved, but also an important reference is provided for model selection and optimization.
Owner:BEIHANG UNIV

Motor fault diagnosis method based on sparse Bayesian and one-dimensional neural network

The invention relates to a motor fault diagnosis method based on sparse Bayesian and a one-dimensional neural network. The method comprises the following steps: S1, collecting a motor stator current signal, and carrying out filtering and preprocessing; s2, performing Hilbert transformation on the current signal to obtain an analysis signal; s3, constructing a sparse signal model in the truncated frequency domain and performing frequency grid division; s4, solving the sparse model based on sparse Bayesian learning, and correcting the deviation between the fault frequency and the grid by adopting an off-grid model to obtain an envelope spectrum; and S5, inputting the envelope spectrum into a one-dimensional convolutional neural network to output a motor fault diagnosis result. The method has higher frequency recovery precision, stronger robustness and fault recognition accuracy exceeding 98% in a complex environment.
Owner:ZHEJIANG TAIBANG XINGPU INTELLIGENT TECH CO LTD

Distributed sparse model fingerprint method based on dual-key driving

The invention discloses a distributed sparse model fingerprint method based on dual-key driving, and the method comprises the following steps: inputting an original model, an owner secret key and an identity label into a computer system; generating a seed based on an owner secret key, calculating a global index set in one or more stable target convolution layers pre-selected in the model, and selecting a weight subset as a fingerprint carrier; constructing a random projection matrix based on the identity label; the weight vector and the random projection matrix generate an original model fingerprint; verifying the suspicious model, repeating the steps to obtain a fingerprint to be detected, and calculating the cosine similarity between the original model fingerprint and the fingerprint to be detected; and judging whether an illegal derivative relationship is formed based on a calibrated threshold value, and outputting an ownership judgment result. According to the method, identity and pseudo-random processes are bound through double keys, and distributed sparse sampling and normalized random projection are combined, so that the uniqueness and robustness of fingerprints are improved, various attack scenes can be effectively resisted, and the ownership of the model is accurately judged.
Owner:GUIZHOU UNIV

Federal learning method and system based on fine-grained layer rarefaction and similarity perception aggregation

The invention discloses a federated learning method and system based on fine-grained layer sparsification and similarity perception aggregation, and the method comprises the steps: carrying out the personalized local model training through a local private data set, and extracting a feature map from a specified feature extraction layer; calculating the sparseness of the feature map to obtain the feature sparseness; calculating a change rate of local model parameters in a training process, setting a sparse ratio for different layers of the local model to obtain a sparse mask matrix, and performing sparsification on the local model to obtain a sparse model; and uploading the feature sparseness and the sparseness model to a server, so that the server constructs a similarity matrix, calculates a similarity index, weights the local model parameter of each client according to the similarity index, updates the local model parameter, and distributes the local model parameter back to each client. The method can effectively reduce the communication overhead, improves the performance of a personalized model, and is especially suitable for scenes with high data privacy protection requirements, such as medical image analysis.
Owner:SOUTH CHINA UNIV OF TECH

Internet of Things large-scale multi-user detection method based on precise structure learning

PendingCN120711056ATransmissionNeural learning methodsThe InternetNon linear estimation
The invention provides an Internet of Things large-scale multi-user detection method based on accurate structure learning. The method comprises the following steps: acquiring a base station receiving signal and an equivalent channel matrix, and initializing a sparse proportion, a noise variance and a maximum iteration number; executing signal estimation under the constraint of a user frame sparse model, wherein the user frame sparse model requires that the active user sets of all time slots are the same; the method comprises the following steps of: (a) executing accurate structure learning based on a memory linear estimation result, and updating a user active probability through full-time-slot Bayesian fusion; (b) generating a detection output in the non-linear estimation; (c) when iteration continues, optimizing the intermediate variable by adopting dynamic damping control; (d) performing multi-time-slot joint optimization on the sparse proportion and updating noise parameters; and (e) judging an iteration state based on the reconstruction error: if a termination condition is met, outputting a detection result, otherwise, returning to the step (a).
Owner:FUZHOU UNIV

System and Method of Developing Sparse Language Model

This invention describes methods and systems for utilizing blockchain-verified sparse language models (SLMs) in enterprise applications. Sparse models address the limitations of large language models (LLMs) by reducing overfitting, bias, and complexity, while blockchain integration ensures result verification and maintains immutable records of model operations. The system employs smart contracts for automated validation and distributed consensus mechanisms to verify model outputs. This comprehensive approach leads to improved transparency, trust, and cost-efficiency through both model sparsification and blockchain-based accountability, making these verified SLMs particularly suitable for high-risk applications. The invention's combination of sparse modeling techniques with blockchain verification creates a robust framework for deploying trustworthy and efficient language models in critical enterprise environments.
Owner:JOHNSON KIMBERLY ROXANNE

An image restoration method based on a hybrid structured sparse model

ActiveCN116452443BImprove image restoration effectImage enhancementImage analysisPattern recognitionSparse model
This invention discloses an image restoration method based on a hybrid structured sparse model, specifically including the following steps: initializing the restored image and setting the number of iterations; constructing a matrix of similar image patch groups; establishing a hybrid structured sparse model; using the hybrid structured sparse model to sparsely encode each similar image patch group; reconstructing each similar image patch group; and restoring the entire image based on all reconstructed similar image patch groups. The image restoration method of this invention better reconstructs details such as edges and textures, and effectively suppresses unwanted visual artifacts, further improving the image restoration effect.
Owner:XIAN UNIV OF TECH