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38 results about "Attribute weight" patented technology

Dynamic weights for chatbot responses

PendingUS20260025344A1Semantic analysisTransmissionTheoretical computer scienceAttribute weight
Apparatuses, systems, and techniques to cause weights assigned to properties of chatbot answers to be dynamically adjusted. In at least one embodiment, one or more neural networks are used to characterize one or more chatbot queries and cause weight values assigned to properties of answers to the one or more chatbot queries to be dynamically adjusted, based, at least in part, on the characterization of the one or more chatbot queries.
Owner:NVIDIA CORP

Intelligent scheduling control method and system based on multi-objective optimization

The invention relates to the technical field of intelligent scheduling, and discloses an intelligent scheduling control method and system based on multi-objective optimization, and the method comprises the steps: obtaining an attribute set of different tasks, obtaining a disturbed task attribute initial value, and carrying out the calculation to obtain an importance score of the tasks during initialization; based on the task attribute initial value and the attribute weight, calculating the conflict degree between the tasks through the task scheduling conflict degree; defining an optimization target according to the importance score of the task and the conflict degree between the tasks, and automatically generating an association rule; and after optimization, calculating the task importance score of the final time step based on the task attribute value and the attribute weight of the final time step, and generating a final scheduling scheme according to the final importance score of each task. According to the method, through dynamic conflict evaluation, adaptive weight adjustment and a closed-loop feedback mechanism, the environmental adaptability, global optimization and stability of a scheduling system are remarkably improved, and resource competition and time delay are effectively reduced.
Owner:GUIZHOU POWER GRID CO LTD

Multi-attribute score fusion recommendation method based on user preferences and attention

The invention provides a multi-attribute score fusion recommendation method based on user preferences and attention, and the method comprises a data collection and preparation module which is used for obtaining and cleaning user, project and score data; the attribute coding module is used for carrying out numerical coding on user and project attributes; the multi-attribute feature fusion module is used for obtaining user-project comprehensive representation by splicing attribute vectors and utilizing a deep neural network to extract interaction features; the fusion attention mechanism module is used for dynamically distributing each attribute weight and realizing weighted fusion of multi-attribute features; the comprehensive evaluation score calculation module is used for predicting the score of the user on the project according to the fusion feature and the attention distribution; the global preference modeling module is used for fusing historical behaviors of the user and improving the modeling capability of the overall preference; the recommendation result output module is used for generating a personalized recommendation list; and the method evaluating and updating module is used for evaluating recommendation performance and dynamically optimizing the model.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Big data measurement asset supply and demand matching and inventory optimization method

The invention discloses a big data measurement asset supply and demand matching and inventory optimization method, and relates to the technical field of big data processing and supply chain management. The method comprises the following steps: segmenting supply chain asset data through a hash function according to multi-dimensional attributes to generate a data fragment set, and constructing a global index tree according to the data fragment set; and monitoring the load state of the leaf nodes of the global index tree in real time, and migrating and verifying data during unbalance. And querying the global index tree, positioning fragment data associated with the query request from the uniformly distributed leaf nodes, generating a preliminary matching asset set, calculating the matching degree of each asset and the query request, and generating a resource allocation result. And updating the global index tree, and generating the latest data view representation. And adjusting the attribute weight coefficient of each dimension in the hash function, and generating optimized storage layout configuration. Irrelevant data are filtered through a neighbor algorithm, and a final matching result set is generated. Balanced storage, efficient query and accurate matching of asset data are realized, and the overall response speed and the resource utilization rate are improved.
Owner:CHAOYANG POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY

GNN-based talent evaluation model and method and talent selection method

PendingCN120509771ABiological modelsEngineeringAttribute weight
The invention relates to the technical field of artificial intelligence and talent management, in particular to a talent evaluation model and method based on GNN and a talent selection method. The talent evaluation model comprises a dimension prediction model for training each attribute weight; the talent score is the weighted summation of each attribute and the attribute weight; the training process of the dimension prediction model comprises the following steps: acquiring full-attribute data as a training set; acquiring full-attribute data marked with expert scores as a verification set; the dimension prediction model is used for deleting a target attribute from the training set and speculating the target attribute and the weight thereof in combination with the residual attributes; traversing all attributes through the target attribute to obtain the weight of each attribute; on the verification set, the attribute scores of the talents and the corresponding weights are multiplied and summed to serve as predicted talent weights, and the attribute weights are verified through comparison of the talent weights and the expert weights; and training of the dimension prediction model and verification of the attribute weight are cycled until the attribute weight reaches a convergence condition. According to the method, the feature column needing to be learned is masked by using the cyclic mask method, and the masked column is learned by using other feature columns, so that the problems of insufficient data and non-uniform data can be efficiently solved.
Owner:UNIV OF SCI & TECH OF CHINA

Optical cable fault rapid positioning method, system and equipment

The invention provides an optical cable fault rapid positioning method, system and equipment, and the method comprises the steps: obtaining multi-dimensional attribute parameters of a target optical cable section, specifically including a static attribute, a dynamic attribute and an environment attribute for evaluating the operation state of an optical cable; inputting the multi-dimensional attribute parameters into the weighted analysis model and the trained machine learning prediction model in parallel; wherein the weighted analysis model calculates and outputs a first candidate fault position set based on an attribute weight data set, and the attribute weight data set comprises weight scores defined for different types of attribute parameters; analyzing the current multi-dimensional attribute parameters by using the trained machine learning prediction model, and outputting a second candidate fault position set; and fusing overlapped data of the first candidate fault position set and the second candidate fault position set to generate comprehensive fault positioning information. Based on the method, the invention also provides an optical cable fault rapid positioning system and equipment. According to the method, the accuracy of fault positioning and the decision robustness are remarkably improved.
Owner:山东五洲和兴设计咨询有限公司 +1

Industrial design component library management and automatic matching method and system

The invention discloses an industrial design component library management and automatic matching method and system, and relates to the technical field of XXX industrial design, and the method comprises the following steps: obtaining the dimension attribute of a component, and carrying out the fusion modeling of the dimension attribute of the component; obtaining design requirements, extracting keywords according to the design requirements, matching the keywords with semantic tags in the component library, and obtaining semantic similarity based on a cosine similarity algorithm; constructing a matching model according to the semantic similarity in combination with the dimension attributes of the components, and comprehensively evaluating the dimension attributes of the components by using a weighted multi-dimensional data fusion technology to obtain matching degree scores of the components and the design requirements; and comparing the matching degree score with a preset matching threshold value, evaluating an automatic matching effect according to a comparison result, and dynamically updating the attribute weight of the component according to the automatic matching effect. According to the method, the problem of separation of semantic understanding and attribute matching is solved, rapid matching of components and design requirements is realized, the design period is remarkably shortened, and the design efficiency is improved.
Owner:JIANGSU VOCATION & TECHNICAL COLLEGE OF FINANCE & ECONOMICS

Identifier intercommunication analysis method and system for heterogeneous science and technology resources

The invention discloses an identification intercommunication analysis method and system for heterogeneous science and technology resources, and relates to the technical field of identification analysis, and the method comprises the steps: collecting heterogeneous science and technology resource data, carrying out the hierarchical definition of triple nodes, analyzing the attribute association degree, and carrying out the weak association elimination through a SimHash screening technology, and analyzing the attribute similarity among the resources based on the attribute vector distance of the triple node data, and performing matching analysis of function vectors according to the support information of the resources to the functions to establish the function association of the resources. According to the method, a multi-dimensional supplementary association mechanism is provided for function association values based on task function support conditions among resources through definition and matching of function vectors, attribute weights of attribute similarity are adjusted based on dynamic loads, the real-time states of the resources have a dynamic adjustment effect on the association weights, and the dynamic load adjustment effect of the resources is improved. And the adaptation flexibility of the system is improved.
Owner:CHINA NAT INST OF STANDARDIZATION

Intelligent lock with intelligent acquisition function and control method thereof

The invention relates to the technical field of intelligent locks, in particular to an intelligent lock with an intelligent acquisition function and a control method thereof.Importance levels of corresponding acquisition functions are represented through attribute weights, then the attribute weights are corrected through data calling records, and personalized weights better conforming to user habits are obtained; then a fitness function is determined based on the personalized weight, so that an optimal acquisition function calling strategy can be found through an optimization algorithm, and the calling strategy not only can select and reject a plurality of acquisition functions according to the residual electric quantity so as to prolong standby time, but also can match user habits and reserve common and important acquisition functions of a user; the purpose of balancing energy consumption and functions of the intelligent lock is perfectly achieved, it is ensured that safety and convenience are provided, high efficiency and energy efficiency are kept, user experience is greatly improved, and good prospects are achieved.
Owner:YIMAITONG (SHENZHEN) INTELLIGENT TECH CO LTD

Large-scale heterogeneous multi-attribute equipment scheme clustering decision-making method and medium

The invention relates to a large-scale heterogeneous multi-attribute equipment scheme clustering decision-making method and a medium. The method comprises the following steps: uniformly converting heterogeneous attribute data in a digital twin decision-making information system into binary connection numbers; determining an attribute weight by adopting an MEREC method, and constructing an attribute non-compensable value based on the attribute weight and the binary connection number; generating a scheme similar network according to the attribute non-compensable value; performing network clustering operation on the scheme similar network, and outputting a scheme clustering result; and based on the scheme clustering result, calculating the comprehensive target distance of the scheme in the cluster by adopting the grey target theory, and fusing the global value of the scheme and the comprehensive target distance to generate a final scheme score. According to the method, the problems of heterogeneous information fusion distortion, attribute non-compensatory mechanism deficiency and low large-scale scheme clustering efficiency in a digital twinborn decision scene are solved by constructing heterogeneous data unification-attribute non-compensatory mechanism modeling-network clustering-intra-cluster decision.
Owner:NAT UNIV OF DEFENSE TECH

A material similarity analysis method based on a semantic library and a knowledge graph

The application provides a material similarity analysis method based on a semantic library and a knowledge graph, comprising the following steps: S1: judging whether the decisive attributes of two materials are similar, if any of the decisive attributes is not similar, then the two materials are non-redundant materials, otherwise, entering S2; S2: calculating the similarity of the field part according to the non-decisive attribute weight and the distance of each field; S3: combining all the knowledge graph paths and weight values to calculate the similarity of the graph part; S4: adding the similarity of the field part and the similarity of the graph part to obtain the final material similarity, and judging whether the two materials are high similarity through the final material similarity. The material similarity analysis method provided by the application optimizes the accuracy of the similarity algorithm.
Owner:CNNC NUCLEAR POWER OPERATION MANAGEMENT CO LTD

Zero sample fault detection method based on weighted semantic consistency embedding

The invention discloses a zero sample fault detection method based on weighted semantic consistency embedding, and belongs to the field of industrial fault diagnosis. The method comprises the following steps that firstly, industrial equipment is used for collecting multi-mode sensor data, and standardized data are obtained through normalization, wavelet denoising and time sequence segmentation preprocessing; determining a fault attribute dimension based on domain expert knowledge, assigning each fault class to form a semantic attribute vector, and constructing a semantic attribute weight matrix through mutual information gain between attributes and fault tags; embedding data and semantic attributes into a shared space by using a data encoder and a semantic attribute encoder, decoding and calculating reconstruction loss by combining a data decoder and a semantic attribute decoder, and introducing weight to construct weighted semantic consistency loss; combining the two types of loss to train an encoder and a decoder, and extracting training data features by using the trained encoder and training a multi-attribute classifier; and finally, in a zero sample scene, extracting embedded features without fault data, inputting the embedded features into an attribute classifier, and matching fault categories through a maximum posterior probability. According to the method, the equal-weight hypothesis defect of an existing semantic consistency embedding method is broken through, key semantics are strengthened through mutual information gain weights, consistency loss is weighted to resist noise interference, and the precision, robustness and generalization ability of zero sample fault diagnosis are remarkably improved.
Owner:YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE (HUZHOU)

Node selection method and apparatus, first node, storage medium, and program product

Embodiments of this application disclose a node selection method performed by a first node in a blockchain. In the embodiments of this application, nodes in a blockchain are grouped in an order of attribute weights of the nodes, to obtain a plurality of node groups. A node group whose attribute weight meets a preset condition is selected from the plurality of node groups, to obtain a target node group, and a preset quantity of candidate consensus nodes are selected from the target node group. A non-candidate consensus node in the target node group is stored into an initial node group. The initial node group is used as a new target node group, and the operation of selecting a candidate consensus node from the target node group is performed. Candidate consensus nodes are broadcast to one or more second nodes in the blockchain for verification.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

Access control method and system based on WIAA-ZTAC model

PendingCN120614214ASecuring communicationAttribute weightHierarchical analysis
The invention discloses an access control method and system based on a WIAA-ZTAC model, and relates to the technical field of network security, and the method comprises the steps: receiving an application access request of an access subject; the method comprises the following steps: verifying an application access request through a zero-trust access control WIAA-ZTAC model combined with a Web identity identifier and an attribute score to obtain a main body trust value, and dynamically authorizing minimum permission access when the main body trust value reaches a trust threshold value of an access resource; wherein the WIAA-ZTAC model carries out strategy verification according to a preset judgment attribute, trust evaluation is carried out on a request passing the judgment attribute verification based on an evaluation attribute, a fuzzy analytic hierarchy process is adopted to dynamically allocate each attribute weight, and a subject trust value is calculated. According to the invention, each request is evaluated and authorized, so that the method has higher timeliness and is safer and more reliable.
Owner:SHENZHEN UNIV

A method for repairing missing values of medical data based on multiple confidence

The application discloses a kind of based on multiple confidence medical data missing value batch repair method, the method includes: using attribute weight updates sample confidence, missing sample set is introduced into model training;Using sample confidence optimization loss function, fill the missing value of data set;The sample confidence is calculated according to the attribute relationship between samples, according to the data attribute to be predicted and the number of missing values in sample, different confidence is given to sample;The influence degree of sample in model training process is adjusted by dynamic selection of confidence.Optimize model architecture, so that the network can fill the missing value of multidimensional data in batches at a time, can also eliminate the identity mapping problem of network transfer function, and enhance the intercorrelation between nodes.The application improves the utilization of data, improves the filling accuracy and filling efficiency of data.
Owner:CHINA ELECTRONICS STANDARDIZATION INST +1

PLC isomer dynamic access control method based on attribute identification

The invention provides a PLC isomer dynamic access control method based on attribute identification, which solves the problem that the access authority of an industrial PLC system is difficult to dynamically control in real time in a complex heterogeneous environment, and remarkably improves the safety protection capability and the control efficiency of the system. Firstly, attribute data such as user identities and device types are collected for attribute importance evaluation and weight preprocessing, and attribute weight distribution is achieved; secondly, constructing a deep trust model based on a full-connection neural network, training the model according to the preprocessed data, outputting a dynamic trust level, and executing a hierarchical access decision; and finally, designing a neural network self-organizing mechanism, pruning and optimizing redundant nodes of the network by calculating comprehensive importance scores of neurons, and realizing dynamic simplification of a model structure. According to the method, the security access level of the industrial-grade PLC can be calculated through different attribute data, so that a necessary basis is provided for the security operation control of the PLC.
Owner:BEIJING UNIV OF TECH

A method for automatic process processing of accounting data

The present invention provides a method and system for automatic process processing of accounting data. Data is collected by connecting to the internal business system of an enterprise through an adapter interface, and the data is cleaned by combining OCR technology and a professional vocabulary library. An improved random forest algorithm is used to construct a classification model based on attribute weights according to accounting professional knowledge, so as to achieve accurate classification and standardization of data. According to preset financial process rules, reimbursement, procurement payment and other processes are automatically processed and monitored in real time, and timely warnings are issued in case of abnormalities. The processed data is encrypted and stored, and a backup and authority management mechanism is established. Financial statements can also be automatically generated and displayed visually. This invention solves the problems of low efficiency and easy errors in traditional accounting data processing, improves data processing efficiency and accuracy, ensures data security, and provides efficient support for corporate financial management.
Owner:SHANDONG JIANZHU UNIV

A price analysis method and system based on a multi-element attribute template and a medium

A price analysis method and system based on a multi-attribute template, comprising: constructing a multi-attribute template, generating attribute weights and coding rules through association rule mining, and fusing commodity descriptions and business fields into attribute vectors; calculating similarity based on weighted Euclidean distance, normalizing attention weight through Softmax, and weighting and summing historical prices to obtain reference price; calculating deviation rate and comparing with threshold value to perform hierarchical disposal; constructing a knowledge graph to detect associated abnormalities and price avoidance paths; and implementing batch backtracking based on a version-identified feature cache table. The present application realizes fine-grained price analysis and hidden abnormality mining, and supports dynamic template updating, coding rule adaptive calibration and multi-level rollback mechanisms, significantly improving system robustness and cold start capability.
Owner:连云港海关综合技术中心

Intelligent automatic distribution method, system and equipment for college paper marking experts and medium

The invention discloses an intelligent automatic distribution method, system and device for college paper marking experts and a medium. The method comprises the steps of calculating a first attribute weight, a second attribute weight and a third attribute weight; inputting the historical data corresponding to each fourth attribute into a linear regression equation to obtain a fourth attribute weight of each fourth attribute; selecting a preset number of target experts; based on the multiple first attributes, the first attribute weights, the multiple second attributes, the second attribute weights, the multiple third attributes, the third attribute weights, the multiple fourth attributes and the fourth attribute weights, the test questions and the target experts are matched, and a matching success record set is obtained; and performing matching effect evaluation on the successful matching record set to obtain an evaluation result, and if the evaluation result is greater than or equal to a preset threshold value, taking the successful matching record set as a target matching result, and allocating paper marking experts according to the target matching result. The accuracy of matching between the expert and the test paper to be read is improved, and the matching efficiency is improved.
Owner:GUANGZHOU CHENGFANG TECH CO LTD

Industry chain knowledge question and answer interaction method and system based on large model

The application discloses an industry chain knowledge question and answer interaction method and system based on a large model, groups each process node contained in a target industry chain based on attribute weight values and continuity between process nodes and upstream and downstream relationships, so that the obtained node set contains process nodes that not only reflect the relationship between the upstream and downstream, but also can realize the solidification of the relationship between the process nodes based on the process sequence through the arrangement order between the node sets, and then realize the solidification of the knowledge structure of the target industry chain, reduce the phenomenon that the knowledge is too loose and it is difficult to find the logic and rules contained therein due to the weak knowledge structure, and provide conditions for the model to generate targeted and clear answers. The application is applicable to the application of electronic digital data processing technology in the field of question and answer interaction related technology.
Owner:CHINA NAT INST OF STANDARDIZATION

Software demand case normativity inspection method, tool and computer program product

The invention provides a normative checking method and tool for software requirement cases and a computer program product. The checking method comprises the following steps: extracting attributes from a software demand case, and converting the attributes into feature vectors by adopting one-hot coding according to a demand case related vocabulary set and a preset weight of each attribute; vector dimensions are equal to the size of the vocabulary set, vector positions are in one-to-one correspondence with words in the vocabulary set, and word frequencies are weighted and counted according to attribute weights and then are filled into the corresponding vector positions; on the basis of the feature vectors, classifying the software demand cases by utilizing a classification model; and matching the corresponding writing specification according to the category of the software demand case, and carrying out natural language structured analysis on the description of the software demand case by adopting an improved shift-protocol dependency analysis method to judge whether the description conforms to the writing specification or not. According to the method, the problem of low manual inspection efficiency is solved, the inspection efficiency is greatly improved through multi-dimensional technical optimization, and standardization and intelligentization of software demand review are promoted.
Owner:NO 15 INST OF CHINA ELECTRONICS TECH GRP

Multi-field data weighted mixing method for fine tuning of large mine model

The invention relates to the technical field of fine adjustment of large mine models, in particular to a multi-field data weighted mixing method, device and equipment for fine adjustment of a large mine model and a computer storage medium. According to the method, the domain target weight and the sample multi-homing probability are accurately combined in the batch construction stage, controllable adjustment of the contribution proportion of each domain is achieved, and it is ensured that low-resource or key domains get full attention in training; in the loss calculation stage, multi-field loss is subjected to weighted fusion by using the attribution weight, so that the model learning process better fits the real multi-field distribution of the sample. Finally, according to the method, the performance balance and the overall generalization ability of the fine-tuned large mine model in each sub-field task are remarkably improved, and the adaptability to a complex multi-label scene is enhanced.
Owner:CHINA COAL RES INST +1

Six-property digital twin modeling method and system

The invention discloses a sextuple digital twin modeling method and system, and the method comprises the steps: building a physical architecture model based on a system engineering method, obtaining and preprocessing the operation data of a simulation system, and defining a sextuple attribute target; mathematical models are constructed for the six properties respectively, and an interaction relation model among the six properties is constructed according to the coupling effect among the six properties; carrying out multi-objective optimization, dynamically adjusting six property weight parameters, and generating a digital twinborn model; a multidisciplinary subsystem model is integrated, data compatibility among different disciplinary tool chains is achieved, and a multidisciplinary collaborative simulation platform is formed; and operating the digital twinborn model on the multidisciplinary co-simulation platform, feeding back and correcting parameters of the digital twinborn model in real time, and outputting a multi-dimensional evaluation report. According to the method, models among different subjects are effectively compatible, powerful support is provided for multidisciplinary co-simulation, it is ensured that data are kept consistent in the conversion process, model functions and performance are not damaged, and a reliable basis is provided for optimization and decision making of a complex system.
Owner:HANGKE YITONG (BEIJING) TECH CO LTD

DYNAMIC WEIGHTS FOR CHATBOT RESPONSES

Devices, systems, and methods are disclosed for dynamically adjusting weights assigned to properties of chatbot responses. In at least one embodiment, one or more neural networks are used to characterize one or more chatbot queries and to dynamically adjust weight values, which are assigned to properties of responses to the one or more chatbot queries, at least partially based on the characterization of the one or more chatbot queries.
Owner:NVIDIA CORP

Attribute access control method and device and storage medium

The invention discloses an attribute access control method and device and a storage medium. The method comprises the following steps: receiving and sending an original access request; initiating an attribute query request related to the original access request; an access control attribute in the original access request is mined through an ALBERT-PFN model; searching an entity attribute matched with the access control attribute, and determining an attribute weight corresponding to the entity attribute; constructing an attribute-based access request based on the entity attribute and the attribute weight; and inputting the attribute weight value into a Light GBM-SHAP-CART model, and generating an access control strategy through the Light GBM-SHAP-CART model. The method not only can improve the accuracy of the ABAC strategy, but also can quickly identify the core attribute subset having key influence on the authorization decision, thereby realizing efficient and accurate strategy generation.
Owner:CHINA NUCLEAR POWER ENGINEERING CO LTD

Personnel dynamic equilibrium distribution method and system based on multi-constraint optimization

The invention provides a personnel dynamic equilibrium distribution method and system based on multi-constraint optimization, and relates to the technical field of personnel distribution, and the method comprises the steps: inputting a to-be-distributed personnel set, a target number proportion of each group, a personnel multi-dimensional attribute set, and an attribute weight set; initializing each group of current personnel set to be empty, and calculating global distribution of each attribute; and carrying out person-by-person distribution on the to-be-distributed person set by taking the target person number proportion of each group as a constraint, calculating a plurality of comprehensive expected values distributed to the plurality of candidate groups one by one according to the person multi-dimensional attribute set and the attribute weight set in combination with the global distribution of each attribute, and generating an optimal distribution decision by taking the maximization of the comprehensive expected values as a target. According to the method, the technical problem that the rationality of a team structure is affected due to unbalanced distribution of attributes of personnel among groups caused by the fact that adjustment cannot be made according to the real-time progress of distribution or the imbalance condition of the current attributes by generally adopting a static weight polling distribution method in the prior art is solved.
Owner:NANJING ANXIA ELECTRONIC TECH CO LTD

A scenic spot recommendation method enhanced by fusing user emotion and knowledge graph

The application discloses a kind of fusion user sentiment and knowledge graph enhanced scenic spot recommendation method, belong to scenic spot personalized recommendation field, including according to scenic spot attribute information, constructs scenic spot knowledge graph AKG;Using translation model TransR learns the low-dimensional representation vector of entity and relation in AKG as the initial input of model;Introduce multi-head attention mechanism to learn scenic spot attribute weight, adopt graph neural network to learn scenic spot embedding;According to historical interaction information, user visit scenic spot sequence is constructed in time sequence;From comment, the sentiment of user is analyzed, user sentiment change function is designed, and user interest embedding is learned;Loss function is designed to train model, user and scenic spot embedding are learned according to the model after training, similarity calculation is carried out, and scenic spot is recommended to user according to the result.The application makes full use of scenic spot attribute information, alleviates the sparsity of data, considers the change of real emotion of user, and improves the recommendation precision of personalized scenic spot.
Owner:YANSHAN UNIV

High-dimensional data stream-oriented adaptive kernel density anomaly detection method

PendingCN121030378AAlgorithmAnomaly detection
The invention discloses a high-dimensional data stream-oriented adaptive kernel density anomaly detection method, which comprises the following steps of: calculating each attribute weight based on information entropy, and clustering input data streams in combination with an improved DBSCAN (Density-Based Spatial Clustering of Applications with Noise) algorithm; extracting a representative data subset from each cluster through a KL divergence optimization model; calculating an upper bound filtering normal point of a KOF value based on the reachable distance; calculating an accurate KOF value of the remaining data points and judging that the KOF value is abnormal; the method has excellent performance in the aspects of high efficiency, universality, real-time performance, accuracy and the like, has remarkable advantages compared with the prior art, and provides a new thought and method for solving the problem of anomaly detection in the multi-dimensional data stream.
Owner:SUZHOU UNIV

User portrait construction method and system based on big data

PendingCN121391376ACommerceEngineeringAttribute weight
The invention relates to the technical field of user portrait construction, and provides a user portrait construction method and system based on big data, and the method comprises the steps: collecting behavior data, recognizing a keyword group, and obtaining the initial weight, the attribute tag, the browsing frequency and the browsing time of the keyword group; dividing the interest attribute label, and obtaining an attribute initial weight, attribute browsing time and a first update attribute weight; setting an attribute tag of a pre-pushed advertisement and an advertisement tag weight, determining an interest index of an advertisement pushing party to the same user, and screening high-value users; and determining a second update attribute weight according to the first update attribute weight and the advertisement label weight, and constructing a user portrait in combination with the interest attribute label of the high-value user. According to the invention, the efficiency and accuracy of user portrait construction based on big data can be improved.
Owner:BILL BEAR