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46 results about "Similarity relation" patented technology

Implicit relation perception time sequence knowledge graph completion method based on dynamic embedding and self-attention

The invention relates to the technical field of knowledge graph completion, provides an implicit relation perception time sequence knowledge graph completion method based on dynamic embedding and self-attention, and aims to improve the inference and completion capability of missing facts in a time sequence knowledge graph. According to the method, time evolution modeling, a graph neural network and semantic similarity calculation are combined, and dynamic embedding representation fusing static, trend and periodic characteristics is constructed. Explicit structure information is extracted through a multilayer relational graph convolutional network, and meanwhile, an implicit semantic similarity relationship under synchronous and asynchronous time is introduced to construct a sparse semantic graph. Structural information and semantic information are fused through GRU, multi-time step features are aggregated by adopting a time perception self-attention mechanism, and key time information is highlighted. And finally, entity prediction is completed by using a ConvTransE decoder, and the model is optimized through cross entropy loss. According to the method, a static structure and implicit semantics can be modeled at the same time, the time sensitivity is enhanced, and the method is suitable for large-scale dynamic graph completion and has better reasoning ability and generalization performance.
Owner:DALIAN NATIONALITIES UNIVERSITY

Regulation and regulation management method and device and storage medium

PendingCN120782382ASemantic analysisOffice automationBusiness enterpriseSimilarity relation
The invention discloses a rule and regulation management method and device and a storage medium, and relates to the technical field of enterprise operation. In the application, actual internal rules and regulations and actual external rules and regulations of an organization are disassembled; performing semantic recognition on a disassembly result through a direct relation extraction agent and a similar or conflict relation extraction agent which are obtained based on a law field fine-tuning large language model, and extracting system relations, including an upgrading relation, a reference relation, an internalization relation, a similar relation and a conflict relation, between rules and regulations; the method comprises the following steps: firstly, extracting a system relationship, and constructing a system blood relationship map according to a disassembling relationship obtained by disassembling and a system relationship obtained by extracting, so as to improve a traditional knowledge map construction method, and managing rules and regulations of an organization on the basis of the system blood relationship map obtained by the improved latest knowledge map construction method.
Owner:CHINA MERCHANTS SECURITIES CO LTD

Regulation and control operation simulation training method, system and equipment based on collaborative filtering recommendation algorithm and medium

The invention relates to the technical field of regulation and control operation simulation training, in particular to a regulation and control operation simulation training method, system and device based on a collaborative filtering recommendation algorithm and a medium. Collecting regulation and control operation data, and preprocessing the regulation and control operation data; a recommendation algorithm is adopted to analyze the regulation and control operation data and the project features, the similarity relation of the regulation and control tasks is mined, and a recommendation training scheme is generated according to the similarity relation; generating a task recommendation report according to the recommendation scheme, collecting user feedback information and constructing a closed-loop optimization mechanism; and fusing the feedback information into a model incremental learning process, so that the model is iteratively updated on new data. Continuous online learning of the model is realized through a feedback mechanism, and recommendation results are continuously optimized along with changes of tasks and user behaviors.
Owner:GUANGXI POWER GRID CORP

Artificial intelligence-based data analysis method, device, equipment and storage medium

The embodiment of the application belongs to the field of artificial intelligence, and relates to a data analysis method based on artificial intelligence, comprising the following steps: acquiring voice dialogue data of a user and an agent in a business conversation process; converting the voice dialogue data into text data, and obtaining dialogue text by converting the text data; performing classification processing on the dialogue text according to a preset rule to obtain a theme label corresponding to the dialogue text; constructing a corresponding directed graph based on the dialogue text and the theme label; and performing similarity analysis processing on the directed graph based on a preset similarity analysis model to generate a similarity result between each directed graph. The application also provides a data analysis device based on artificial intelligence, a computer device and a storage medium. In addition, the application also relates to blockchain technology, and the similarity result can be stored in the blockchain. The application analyzes the similarity relationship of the theme path of the dialogue technique based on the use of the similarity analysis model to quickly and accurately obtain the corresponding similarity result.
Owner:CHINA PING AN PROPERTY INSURANCE CO LTD

Video search method, device and computer readable storage medium

The application discloses a video search method and device and a computer readable storage medium. The method comprises the following steps: obtaining a video search text, and performing text feature extraction on the video search text to obtain first text features; mapping the first text features to a video feature space corresponding to video information to obtain second text features; performing video feature extraction on each candidate video in a candidate video library to obtain first video features of each candidate video; mapping the first video features to a text feature space corresponding to text information to obtain second video features of each candidate video; and searching for a target candidate video corresponding to the video search text in the candidate video library based on a first similarity relationship between the first text features and the second video features and a second similarity relationship between the first video features and the second text features. The method can greatly improve the accuracy of searching for videos based on text.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

A method and device for constructing training samples of a recall model and a computer device

This application provides a method, apparatus, and computer device for constructing training samples for a recall model. The method is applicable to shopping platforms and includes: obtaining at least one second product displayed after a user triggers a preset behavior for a first product on a preset page of the shopping platform; the first product and any second product have a similarity relationship; obtaining at least one third product in the shopping platform that matches the attribute information of the first product; constructing any product pair based on at least one second product and at least one third product, inputting the product pair and a prompt word into a large language model to obtain the similarity corresponding to the product pair; the prompt word is used to instruct the large language model to determine the similarity corresponding to the product pair from the product name and the ingredient list of the product pair; removing product pairs with similarity less than a second threshold to obtain similar product samples, the similar product samples are used to train the model to obtain a first recall model, and the first recall model is used to recall products with substitution relationships.
Owner:SHANGHAI 100 METERS NETWORK TECH CO LTD

Knowledge graph construction method and device, equipment, medium and product

PendingCN121960693AFinanceSemantic analysisEngineeringSimilarity relation
The invention provides a knowledge graph construction method and device, equipment, a medium and a product, and relates to the field of data processing, and the method comprises the steps: constructing a financial knowledge base through a financial knowledge platform frame, and enabling the financial knowledge base to provide a multi-modal feature vector and structured relation data corresponding to multi-modal financial data; performing knowledge annotation on the multi-modal feature vector and the structured relation data to obtain annotated data; inputting the annotation data into the domain model, and obtaining summary information of text blocks output by the domain model and semantic similarity relationships of different text blocks; the domain model is related to the financial domain; the text blocks are obtained by slicing the annotation data, and the semantic similarity relationship is determined according to the summary information; performing entity relationship analysis on the multi-granularity hierarchical structure and the semantic similarity relationship of the annotated data to generate maps of different levels; and performing optimization processing on entities corresponding to the maps of different levels to construct the financial knowledge map. And the dependence on manpower and the cost are reduced.
Owner:CHINA MOBILE INFORMATION TECHNOLOGY CO LTD +1

Data deduplication method, apparatus, computing device cluster, and program product

The embodiment of the application discloses a data deduplication method and device, a computing device cluster and related products, and belongs to the technical field of big data. In the embodiment of the application, a similarity relationship between a plurality of data in a first data set is generated according to the similarity between the plurality of data; a first deduplicated data is determined according to the similarity relationship, the first deduplicated data being the data with the largest number of similarity relationships with other data in the first data set; and the first deduplicated data is deleted from the first data set. On the one hand, data deduplication is achieved, and on the other hand, compared with a deduplication scheme that only retains the data with the largest number of similarity relationships, the data deduplication scheme provided by the embodiment of the application can also retain a larger number of representative data. Therefore, compared with the deduplication scheme that only retains the data with the largest number of similarity relationships, the method provided by the embodiment of the application not only achieves data deduplication but also achieves data expansion, thereby improving the quality of the deduplicated data set.
Owner:HUAWEI TECH CO LTD

Vector retrieval method, method and device for determining a vector map with access rights, and related products

The embodiment of the application discloses a vector retrieval method, a method for determining an authorized vector graph, a device and related products, and belongs to the technical field of artificial intelligence. In the embodiment of the application, an authorized vector graph is configured. For an edge connected between two vertices corresponding to two vectors with a similar relationship in the authorized vector graph, the edge corresponds to a weight. In this way, when the vector most similar to a query vector is retrieved through the authorized vector graph, for the edge connected to the retrieval starting point, part of the edges can be filtered through the weight corresponding to the edge to determine the next retrieval starting point. Thus, it is not necessary to calculate the distance between the vectors indicated by all neighbor vertices of the retrieval starting point and the query vector, thereby saving the calculation amount in the vector retrieval process. Accordingly, it is also not necessary to access the vectors indicated by all neighbor vertices of the retrieval starting point from a storage system, and thus the number of times of accessing the stored vectors in the storage system in the vector retrieval process can be reduced.
Owner:HUAWEI TECH CO LTD

Low-quality multi-view news data anchor graph regular division method based on diffusion completion

PendingCN121117543ANatural language data processingNeural learning methodsGraph regularizationSimilarity relation
A low-quality multi-view news data anchor graph regular division method based on diffusion completion belongs to the field of data division in low-quality multi-view news data, and comprises the following steps: firstly, inputting low-quality news data of each view and a corresponding similarity relation matrix into a heterogeneous relation convolutional network; to obtain a low-dimensional embedded representation of each view. Then, the low-dimensional embedded representation uses forward noise adding and reverse noise reduction processes of a conditional diffusion model to obtain predicted noise, and missing samples are complemented through the predicted noise; and then, an anchor point diagram is constructed by using the similarity between the complemented embedded sample and the anchor points, soft clustering distribution is obtained for the constructed anchor point diagram through an orthogonal normalization layer, and discriminative feature representation is obtained through anchor graph regularization constraint. And finally, soft clustering distribution is constrained by using a tensor Schatten p-norm so as to fully mine complementarity information and a sparse structure between the views.
Owner:HARBIN UNIV OF SCI & TECH

Image version evolution path identification method and device based on atlas modeling

The invention discloses an image version evolution path identification method and device based on atlas modeling. The method comprises the following steps: preprocessing a received original image; extracting image fingerprint data from the preprocessed image, performing fingerprint matching, if matching succeeds, determining that an original image and a historical image of a credit material uploaded by a user are candidate similar graphs, taking the candidate similar graphs as nodes, establishing directed edges for the candidate similar graphs according to a similarity relationship, and calculating weights of the directed edges; according to the method, a directed acyclic graph is constructed, a graph structure of the directed acyclic graph is constructed, an evolution path with the maximum possibility is calculated among nodes based on the constructed directed acyclic graph, a chain-level risk score of the evolution path with the maximum possibility is calculated, and a path graph with a current candidate similar graph as a starting point is output. According to the method, the path relation of the image in tampering, evolution and cross-user propagation can be intuitively described, and the crossing from single-point detection to full-link association tracking is realized.
Owner:JIANGSU SUNING BANK CO LTD

Radar radiation source identification method based on relation perception and prototype optimization

The invention belongs to the technical field of radar radiation source identification. The invention provides a radar radiation source identification method based on relation perception and prototype optimization. According to the embodiment of the invention, through channel gating and a soft attention mechanism, invalid frequency band features are automatically inhibited, and the weight of a bad sample which deviates from the center is reduced. And a GCN is introduced to construct a sparse prototype graph, so that the model can perceive a similarity relationship between categories, and local consistency is enhanced through a graph propagation mechanism. And in cooperation with prototype comparison loss, centers of similar categories are forcibly pushed away, so that a clearer isolation strip is formed at a decision boundary, and the false identification rate is remarkably reduced. A residual mean fusion structure is also designed. When an attention mechanism may fail due to extremely small sample size, a mean value prototype on a residual path can play a role in guaranteeing the bottom, so that the stability of model training is ensured; and when the sample size is slightly large, the attention mechanism can provide finer feature expression, so that the universality of the model under different small sample settings is realized.
Owner:XIDIAN UNIV

Method for commodity recommendation based on multi-granularity attribute set cooperative neighbor attention

The application belongs to the technical field of e-commerce commodity cold start recommendation, and discloses a commodity recommendation method of multi-granularity attribute set cooperative neighbor attention, first, a user-user similarity relation graph is constructed by using the multi-granularity attribute set of the user, a commodity-commodity similarity relation graph is constructed by using the multi-granularity attribute set of the commodity, and the cooperative neighbor embedding representation of the user and the commodity on the multi-granularity attribute set is learned through a graph neural network; then the cooperative neighbor embedding representation on the multi-granularity attribute set is fused through an attention mechanism, and the user embedding representation and the commodity embedding representation are modeled; the score of the user to the commodity is calculated through inner product, the preference of the user attribute to the commodity attribute is learned, and a ranked commodity recommendation list is generated according to the score size. The application mines the personalized interest of the user from the multi-granularity attribute combination of the user and the multi-granularity attribute combination of the commodity, realizes the commodity recommendation of the interactive behavior cold start, and provides great support especially in the aspects of e-commerce new user and new commodity recommendation.
Owner:SHANXI UNIV

reciprocal inter-layer temporal discriminative target model for robust visual tracking

ActiveCN117095027BImage enhancementImage analysisFeature extractionSimilarity relation
The application discloses a reciprocal interlayer-time discriminant target model for robust visual tracking, and belongs to the technical field of target tracking, and is used for solving the problem that traditional twin tracking algorithms rarely consider information interaction of templates and search regions, and that cumulative error of similar target interference influences tracking results. The application firstly constructs an interlayer target perception enhancement model, realizes interlayer feature information interaction by establishing pixel-by-pixel correlation between templates and search regions in a feature extraction process, reduces cumulative error caused by invisible target to search regions, and enhances target perception; meanwhile, in order to weaken the influence of interference, a time interference evaluation strategy is designed, similarity between multiple candidate positions in adjacent frames is established by using an interframe candidate propagation module, similar interference is eliminated according to the determined similarity score, a more reliable target position is obtained, and robust tracking is realized.
Owner:YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE (HUZHOU)

Coupling fault diagnosis method and system

The embodiment of the invention provides a coupling fault diagnosis method and system, and the method comprises the steps: constructing a graph which represents the similarity relation between known fault samples for all known fault samples in a support set and a label corresponding to each known fault sample; constructing a graph convolutional learning model based on a graph convolutional learning network by adopting the graph; three similar relations are adopted as a measurement structure of a known fault sample, and a corresponding loss function is determined according to the measurement structure; training the graph convolutional learning network by using the support set to obtain an intermediate graph convolutional learning network model; training the intermediate graph convolutional learning network model by using a support set and an inquiry set to obtain a trained graph convolutional learning network model; and for any to-be-identified coupling fault signal, the trained graph convolution learning network model is adopted to output a predicted value of each type of labels, and the predicted value of each type of labels is used for representing whether the fault exists or not. And when only a small number of training samples exist, each label of the coupling fault can be identified.
Owner:NAT UNIV OF DEFENSE TECH

Common preference enhanced collaborative recommendation method and device

PendingCN122045476ADigital data information retrievalSemantic analysisInteractive modelingSimilarity relation
The invention discloses a common preference enhanced collaborative recommendation method and device, and the method comprises the steps: obtaining user implicit interaction data in a target domain and a source domain, and constructing corresponding user features and commodity feature representations; carrying out fusion coding on the target domain user features, the source domain user features and the target domain commodity features, and generating cross-domain migration features facing target domain recommendation tasks; performing fusion iteration de-noising processing on the cross-domain migration features, gradually inhibiting source domain noise interference and strengthening migratable collaborative preference information through multiple rounds of feature fusion and weight screening operation, and generating de-noised cross-domain user feature representation; after denoising is completed, user structure constraint is introduced, and consistency constraint is carried out on the similarity relation between the target domain users before and after feature enhancement, so that the overall distribution stability of the target domain user interest structure is kept; and finally, performing interactive modeling on the final user representation and the target domain commodity features to obtain a matching relationship between the user and the commodity. The device comprises a processor and a memory. Through a collaborative modeling mode of fusing iterative denoising and structural constraint, the problems of noise interference in cross-domain recommendation and user similarity structure change before and after feature migration can be relieved, and the stability and accuracy of a recommendation result are improved.
Owner:TIANJIN UNIV

An open-ended pipe pile soil squeezing effect fine model test method, system and equipment

PendingCN122329808AData criteriaComparative test
This invention discloses a refined model test method, system, and equipment for the soil displacement effect of open-pit pipe piles, relating to the field of open-pit pipe pile driving technology. The method includes: establishing multi-physical quantity similarity criteria and determining similarity constants; based on the similarity constants, preparing grouting mixture and constructing a micro-reinforcing cage; using the micro-reinforcing cage and grouting mixture to construct an open-pit pipe pile model; establishing a model box, preparing soil samples with target density and homogeneity using a layered filling method within the box, and setting up a pile driving test platform; constructing a comparative test scheme, and simultaneously monitoring and recording pile driving data using the pile driving test platform; processing and comparing the pile driving data to obtain data criteria, providing a basis for optimizing open-pit pipe pile driving parameters and construction control. This invention solves the problems of incomplete model similarity relationships, single test monitoring dimensions, difficulty in quantifying and comparing results, and the inability to provide an operational basis for optimizing engineering construction parameters.
Owner:HEFEI UNIV OF TECH

A non-complete similarity ratio determination method based on classification similarity law

PendingCN122286439ARealize a reasonable mappingimprove consistencyAlgorithmSimilarity relation
This invention discloses a method for determining the non-perfect similarity ratio based on the classification similarity law. The method includes the following steps: S1, extracting a set of parameters describing the physical phenomenon based on experience, previous experimental results, literature, and data; S2, dividing the parameter set into key parameters, basic parameters, and derived parameters; S3, obtaining the similarity ratio of the basic parameters using measurement, material property testing, and other means; S4, deriving the similarity ratio of the derived parameters based on the similarity ratio of the basic parameters; S5, introducing constraint equations based on the physical relationship between the key parameters and the basic and derived parameters to construct a similarity ratio constraint equation; S6, substituting the similarity ratios of the basic and derived parameters into the similarity ratio constraint equation to solve for the similarity ratio of the key parameters. This method, by introducing constraint equations to construct similarity relationships, can effectively reduce scaling errors under non-perfect similarity conditions and is applicable to various scaling test scenarios such as open-loop and closed-loop tests.
Owner:HARBIN INST OF TECH AT WEIHAI

Image retrieval model training method, image retrieval method, equipment and medium

The invention relates to the technical field of information retrieval, in particular to an image retrieval model training method, an image retrieval method, equipment and a medium. According to the method, multiple encoders focus on different aspects of images, diversified feature representations can be generated, dominant features of each image are recognized in combination with reconstruction loss (a bottleneck mechanism), the similarity relation between the images is enhanced, and effective capture of inter-class differences and intra-class changes is achieved; according to the method, interaction between individual features is promoted by means of meta-relationships, semantic aggregation of the features is achieved, and the generated binary codes can retain complex semantic relationships through relationship consistency loss optimization.
Owner:WEIFANG UNIVERSITY

An ultra-relation extraction method based on bidirectional time LSTM and multi-relation contrast learning

The application discloses a super-relation extraction method based on bidirectional time LSTM and multi-relation contrast learning, and belongs to the technical field of information extraction. The BiTime-LSTM is introduced, time-dependent relations are effectively captured through a bidirectional gate learning mechanism, main gates divide memory cells into regions with different time sensitivities, and slave gates perform fine-grained updates in different time regions, so that the performance of the model in a time prediction task is significantly improved. Meanwhile, a multi-relation contrast learning method is introduced, the predicted triad relation and the qualifier relation are compared with real labels, the similarities and differences between various relations are identified, discriminative feature representations can be learned, and the confusion problem between similar relations is effectively alleviated.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Character candidate proposal apparatus, handwritten character recognition system, method and program product

Provided is a technique for more appropriately proposing similar character candidates. A character candidate proposal device includes: a similar character storage unit that stores a similarity relation of appearances of characters; a real character storage unit that stores real existing character strings; a trust processing unit that receives one or more characters and accepts a request to propose character candidates similar in appearance to the characters; a comparison processing unit that specifies candidates of characters similar in appearance to the received characters by comparing with the similar character storage unit, compares combinations of the candidates of characters similar in appearance with the real existing character strings stored in the real character storage unit; and a candidate character transmission processing unit that outputs, as candidate characters, combinations of the candidates of characters similar in appearance that are hit by the comparison by the comparison processing unit.
Owner:HITACHI SYST LTD

Picture retrieval method and system based on multi-heterogeneous graph fusion

The invention provides a picture retrieval method and system based on multi-heterogeneous graph fusion, and the method comprises the following steps: obtaining query information outputted by a user, optimizing the query information, and generating an optimized query statement; encoding the optimized query information to obtain a user query code, and constructing a heterogeneous graph containing different types of heterogeneous nodes based on the user query code and the types of the summary information in the database; according to the similar relation between the heterogeneous nodes of the abstract codes in the heterogeneous graph and the nodes of the user query codes, only the heterogeneous nodes with the semantic relevancy with the user query codes exceeding a set threshold value are reserved, and one or more heterogeneous graph sub-graphs are formed; carrying out global importance sorting on the picture abstract nodes, and generating a semantic similarity ranking and an importance score ranking; and selecting a picture set meeting a set condition from the sorting result as a final query result. According to the method, a more accurate picture retrieval result with a better context understanding capability can be realized.
Owner:SHENZHEN YIDAO DIGITAL TECHNOLOGY R&D CO LTD

E-commerce user re-purchase behavior prediction and accurate reaching method and system fused with time sequence attention mechanism

ActiveCN122022900ASemantic analysisCommerceEngineeringSimilarity relation
The invention belongs to the technical field of e-commerce user behavior analysis, and particularly relates to an e-commerce user re-purchase behavior prediction and accurate reaching method and system fused with a time sequence attention mechanism. The method comprises the following steps: acquiring a historical behavior sequence of a target user in a preset statistical period, extracting a behavior type, behavior occurrence time and commodity information, and constructing a time sequence enhanced behavior representation sequence containing a relative time difference of adjacent behaviors and a time interval from the latest purchase behavior; performing multi-head weighting processing based on the behavior time proximity relationship, the behavior type conversion relationship and the commodity semantic similarity relationship to obtain a user purchase intention vector; and further performing cross-cycle offset analysis in combination with the historical purchase intention vector of the previous statistical cycle, generating a re-purchase score and an offset risk mark according to an analysis result, and outputting a re-purchase prediction result. According to the method, the current behavior characteristics and the cross-cycle interest migration state of the user can be represented at the same time, and the dynamism and discrimination of re-purchase identification are improved.
Owner:HANGZHOU DUOYI NETWORK TECHNOLOGY CO LTD

Distortion compensation method and system for coal and gas outburst physical simulation similarity criterion

According to the distortion compensation method and system of the coal and gas outburst physical simulation similarity criterion, a gas-solid coupling control equation of coal and gas outburst physical simulation is selected, and a similarity ratio relational expression of key parameters is established; processing the similarity ratio relational expression to obtain a first similarity criterion; based on an effective stress theory and a thermodynamic theory, constructing a mechanical strength attenuation function of the porous medium material under the action of gas pressure; carrying out a mechanical test under different gas pressure conditions to measure material strength parameters of the prototype and the model; according to the material strength parameters, strength attenuation factors under different gas pressure conditions are calculated, and corresponding strength attenuation functions are obtained through fitting; combining the intensity attenuation function with a first similarity criterion, deducing to obtain a distortion compensation equation of the similarity criterion, and constructing a distortion compensation similarity criterion; and finally determining a distortion compensation value of each physical property parameter. According to the method, the correction and compensation of the physical simulation similarity relation under the action of the gas pressure can be realized, and the accuracy of the physical simulation result is improved.
Owner:CHINA UNIV OF MINING & TECH

Local consistency guided sparse label enhancement method

The invention provides a local consistency guided sparse label enhancement method, which is suitable for detecting a drivable area on a road and belongs to the technical field of images. The method aims at solving the problem that an existing deep learning model depends on a large amount of pixel-level annotation data, firstly, sparse annotation is conducted on an input image, context enhancement features are constructed according to local and global image representation, and the similarity relation between super-pixel nodes is established; and then constructing a label propagation model based on the graph convolutional network, and propagating the sparse labels to the unlabeled areas to generate pseudo labels. According to the method, a weak supervision training strategy guided by local consistency is adopted, a joint loss function is designed, and collaborative supervision is carried out on a labeled region and an unlabeled region, so that the reliability of a pseudo label and the overall segmentation precision are improved. Experimental results show that the method can be suitable for various road drivable area detection tasks, and the obtained high-quality pixel-level pseudo label can be used for subsequent fully supervised model training.
Owner:HANGZHOU DIANZI UNIV

Data processing method and device, computer device and storage medium

The application relates to a data processing method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: obtaining three-dimensional structure data and resource exchange information of a historical object; performing feature extraction on the three-dimensional structure data to obtain feature data of the historical object; determining a feature vector of the historical object based on the feature data; storing the feature vector and the identifier of the historical object in a target database; obtaining a feature vector of a query object, matching a target historical object matching the feature vector of the query object from the target database according to the similarity relationship between the feature vector of the query object and the feature vector of each historical object; and generating reference resource exchange information of the query object according to the indexed resource exchange information of the historical object. The method can improve the accuracy and efficiency of resource exchange information generation.
Owner:LUXSHARE INTELLIGENT MANUFACTURING TECHNOLOGY (SUZHOU) CO LTD

Recommendation system based on dual graph representation learning pre-trained model

A recommendation system based on double graph representation learning pre-training model, comprising: a data entry module, a meta feature extraction module, a graph construction module and an intelligent recommendation module, wherein: the data entry module enters the model data and dataset data of the external data source and outputs to the meta feature extraction module after parsing; the meta feature extraction module extracts and aggregates the meta feature vectors of the model and the dataset; the graph construction module constructs the double graph representation of the model graph and the dataset graph based on the meta feature vectors, and calculates the architecture feature similarity between the models and analyzes the label weight relationship between the datasets; the intelligent recommendation module uses a deep recommendation model based on residual graph convolution and multilayer perceptron to predict the regression accuracy of the dataset based on the double graph representation and the corresponding meta feature vectors, and then obtains the result list recommended by the model. Through meta feature extraction of the model and the dataset, and double graph representation learning based on the similarity relationship, the present application can effectively capture the complex relationship between the dataset and the model, thereby realizing efficient and accurate model recommendation.
Owner:SHANGHAI JIAOTONG UNIV

A method for constructing a digital twin model of the core rotor based on dynamic similarity.

PendingCN122310832AAviationTime domain
This invention discloses a method for constructing a digital twin model of a core engine rotor based on dynamic similarity, relating to the field of aero-engine condition monitoring technology. The method includes: establishing the dynamic equations of the prototype rotor based on the structural parameters and dynamic characteristics of the prototype core engine rotor system; determining the similarity relationship between the prototype rotor and a similar rotor based on dynamic similarity theory; determining the design parameters of the similar rotor based on the similarity relationship; and constructing the similar rotor based on the design parameters. This invention obtains time-domain characteristic response vectors by collecting and processing the dynamic response data of the similar rotor, capturing its dynamic characteristics; constructing a dynamic similarity mapping operator to realize the feature transformation between the similar rotor and the prototype rotor, alleviating the constraint of limited accuracy in finite element modeling; and inputting the prototype rotor features into the digital twin model to drive its update and reconstruction, achieving high-fidelity deduction of the internal state of the core engine rotor and improving the accuracy and reliability of its dynamic characteristic analysis.
Owner:NORTHEASTERN UNIV CHINA +1

A method for extracting few-sample relations based on memory enhancement and hierarchical decision-making

This invention relates to the fields of natural language processing and information extraction technology, specifically to a few-sample relation extraction method based on memory enhancement and hierarchical decision-making. The method integrates the original text, structured hints, and learnable vectors into a unified input text sequence. It then determines whether a relationship exists between entities. If a relationship exists, it proceeds to the type enhancement stage, generating a relation type representation. A two-layer memory bank is then constructed to generate context-aware soft-hint vectors. During the training phase, uncertainty is assessed based on the information entropy of the sample prediction probability distribution, and learning weights are dynamically adjusted to optimize the model's ability to distinguish similar relations. During the inference phase, when the decision weights exceed a threshold, a large language model is introduced for joint decision-making, ultimately outputting the relation category. This method effectively solves the problems of low accuracy in identifying unrelated samples and difficulty in distinguishing semantically similar relations in few-sample relation extraction, significantly improving the model's generalization ability and robustness.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

A method and system for digital collection and semantic database construction of customer archives

PendingCN122366370AData setOriginal data
The application relates to the technical field of data processing and information management, and discloses a customer archive digitization collection and semantic database construction method and system. The application obtains customer original data through a multi-source collection terminal, carries out multi-modal fusion processing and standardization conversion on the data, generates a data set with a unified structure, further carries out feature extraction and vector expression on the standardized data, constructs a customer feature vector set, calculates the semantic similarity relationship between customers based on the feature vectors, generates a semantic correlation matrix and constructs a semantic graph structure, maps the semantic graph to a customer archive semantic database on this basis, and constructs an index structure through a dynamic updating mechanism, so that continuous updating and efficient retrieval of customer data are realized. The application can effectively solve the problems that multi-source heterogeneous customer data is difficult to be uniformly processed and semantic relationship is difficult to be modeled, and improves the intelligent level and retrieval efficiency of customer archive management.
Owner:XIANNING VOCATIONAL TECHN COLLEGE +1