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160 results about "Association model" patented technology

Multi-platform avionics big data system and method

The invention discloses a multi-platform avionics big data system. The multi-platform avionics big data system comprises a data acquisition module, a data storage module, a data association analysis module and a data association analysis application module. The data acquisition module acquires a pcap data packet file from a data source 1, after acquisition and classification, the pcap data packet file is sent to the data storage module, and the data storage process is completed; the data association analysis module acquires training data from a data source 2, and establishes a data association model, and provides the data association model for the data association analysis application module for use, real-time prediction is completed, the result is displayed on the screen, and the data association analysis application module completes a real-time storage function by means of a cloud storage function implemented by the data storage module. In addition, the invention also discloses an implementing method for the multi-platform avionics big data system. The multi-platform avionics big data system is integrated with functions of data acquisition, data classified management, data storage, data analysis and the like, multi-source heterogeneous data is acquired and managed in a classified manner, and is stored to a resource cloud platform in real time, and the data real-time performance is guaranteed.
Owner:SHENZHEN UNIV

Method of item-all-weighted positive or negative association model mining between text terms and mining system applied to method

The invention discloses a method of item-all-weighted positive or negative association model mining between text terms and a mining system applied to the method. The method comprises the following steps of preprocessing by using a Chinese text preprocessing module to establish a text database and a feature word item library; mining item-all-weighted feature word candidate item sets from the text database by utilizing a feature word frequent item set and negative item set mining implementation module, calculating a weight dimension ratio, and cutting out uninteresting item sets by adopting a multi-interestingness threshold value pruning strategy to obtain an interesting item-all-weighted feature work frequent item set and negative item set model; mining an effective item-all-weighted positive or negative association rule model from frequent item sets and negative item sets by utilizing an item-all-weighted positive or negative association rule mining implementation module between terms, and outputting the mined positive or negative association rule model to a user by utilizing an item-all-weighted association model result display module between terms. By applying the method and the system, unnecessary frequent item sets, negative item sets and association rule models can be greatly reduced, Chinese feature word association rule mining efficiency is improved and a high-quality association model between Chinese terms is obtained.
Owner:GUANGXI UNIVERSITY OF FINANCE AND ECONOMICS

Graph completeness method based on knowledge graph neighborhood structure

The invention provides a knowledge graph completion technology based on a neighborhood structure, aiming at solving the problem that a triple lacks in a knowledge graph. According to the technology, based on information such as entity neighborhoods, relation neighborhoods and corresponding relations between entities of the knowledge graph, modeling is conducted on relation elements and entity elements of the knowledge graph. The method mainly comprises the following steps: (1) establishing a model based on a neighborhood structure of an entity in a map, and mapping entity elements into an entity vector space; (2) establishing a model based on a neighborhood structure of relation elements in the map, and mapping the relation into a relation vector space; and (3) mapping the entity representation into a corresponding relation space by adopting a relation mapping matrix, and establishing a triple association model. In order to more effectively train the model, the invention provides a negative sample sampling algorithm based on a neighborhood structure, performs joint training on entities and relations, and predicts an unknown triple based on a training result. The contribution of theinvention lies in providing an effective knowledge graph completeness technology based on a neighborhood structure.
Owner:XI AN JIAOTONG UNIV

Electric power multi-source information fault positioning and pre-judging method

The invention discloses an electric power multi-source information fault positioning and pre-judging method. The electric power multi-source information fault positioning and pre-judging method comprises the steps of: 1, generating a complex event model in a format required by complex event processing engine analysis; 2, summarizing expert experiences as a complex event form, and inputting regulation and control problems to generate a complex event rule matching model; 3, determining whether to start an offline self-learning thread; 4, outputting reliable events; 5, establishing a Petri inference rule association model; 6, reading the Petri inference rule association model in a Petri inference thread, and monitoring complex event sets in real time; 7, and triggering a fault recovery and processing thread, directly calling a disposal plan or finding all possible power supply recovery paths, and providing a scheme. The electric power multi-source information fault positioning and pre-judging method ensures the rapid aggregation and accuracy of electric power complex events, mitigates the combinatorial explosion problem of Petri fault inference, processing item omitted reporting caused by identification protection, switch rejection action and maloperation as well as communication problem by means of a CEP engine, simplifies the complexity of the Petri inference process, and positions the faulty equipment quickly by means of the Petri inference rules and diagnostic models.
Owner:STATE GRID SHANDONG ELECTRIC POWER +1

Sparse representation image reconstruction method based on Gaussian scale structure block grouping

InactiveCN107038730APreserve edge detailsHigh image peak signal-to-noise ratioTexturing/coloringGeometric image transformationModel methodSignal-to-noise ratio (imaging)
The invention provides a sparse representation image reconstruction method based on Gaussian scale structure block grouping. The method comprises the following steps of using the non-local self-similar model trained from the natural image, mixing the non-local similar blocks into the group obtained by the priori model method, and extracting the optimal block grouping model by the search method; combining the block grouping model and the non-local extension Gaussian scale mixing model, using the alternating minimization method for synchronous sparse coding, and solving the update image block; associating the block grouping model and the Gaussian scale mixing model to a coding framework, using the selected training dictionary to calculate the image reconstruction update solution obtained by the association model, sending the update solution value to the block grouping model for carrying out the step one and the step two again, repeating the steps until the optimal solution is obtained, and outputting the optimal solution of image reconstruction. The reconstructed image obtained by the method has good maintenance performance of details such as the edge and the texture, and has excellent the peak signal to noise ratio quality.
Owner:HUBEI UNIV OF TECH

Remote sensing video vehicle target detection and tracking method based on dynamic association model

ActiveCN110390292ASmall amount of calculationReduce the number of false detection targetsCharacter and pattern recognitionAssociation modelTraffic flow
The invention discloses a remote sensing video vehicle target detection and tracking method based on a dynamic association model, and solves the problems of low tracking precision, poor stability andinflexible algorithm. The method comprises the following steps: intercepting an image frame by frame, performing moving target detection on a first frame image, and creating a storage space storage target; and for subsequent frame images, detecting candidate moving targets, selecting historical target estimation positions from the storage space and matched with the candidate moving targets, then updating historical target states, arranging the storage space and storing newly-appearing targets. Interference outside a road area is filtered by using a road mask, targets are flexibly added and deleted by using dynamic association, the state estimation of a disappearing moving target is optimized by using a group effect, and the tracking precision is improved by using a trajectory optimizationmethod. Simulation experiments also prove that the method reduces the calculation amount, improves the tracking precision and stability, and is used in the fields of traffic flow monitoring, driving route analysis and military intelligence acquisition.
Owner:XIDIAN UNIV

Remote diagnosis method for motion behavior of protection element at dispatching terminal

ActiveCN104880629AFind out the cause of the failure quicklyRestore powerFault locationAssociation modelPower grid
The invention discloses a remote diagnosis method for the motion behavior of a protection element at a dispatching terminal. The remote diagnosis method is characterized in that the method comprises following steps: S01: establishing an association model of primary equipment and relay protection; S02: transmitting and collecting relay protection intermediate logic node information, SOE information, protection motion information, telecommand deflection information, and fault record files from a substation to the dispatching terminal; S03: determining whether a power grid has faults; S04: determining a fault point via protection motion information, breaker deflection, and protection fault range-measuring information and obtaining association relay protection if the power grid has faults; S05: extracting intermediate logic node files of association relay protection; S06: comparing and analyzing each protection member according to self-consistency and consistency of each protection member and motion strategy; and S07: determining whether all the protection member motions are correct. According to the method, hidden problems of the protection members are discovered in advance, and necessary data is provided for remote operation and maintenance of relay protection.
Owner:NARI TECH CO LTD +3

Recommendation method, apparatus, server and storage medium for network resources

The invention relates to a recommending method, apparatus, a server and a storage medium for network resources, belonging to the information recommending field. The method comprises the following steps of: combining the user characteristics of a user account with a plurality of resource characteristics associated with the user characteristics respectively to obtain a plurality of joint characteristics; determining an association degree corresponding to the plurality of joint features according to an association model, wherein the association model is used for determining a probability of association of user features and resource features in any of the joint features; obtaining a target joint feature from the plurality of joint features according to an association degree corresponding to the plurality of joint features, and obtaining a matching network resource from an alternative network resource according to the target joint feature; According to the obtained network resources, the user account is recommended. The application can recommend the network resources with high heat degree among the network resources browsed by the similar users to the target users, thereby improving thediversity of the recommended contents, thereby improving the browsing interest of the users and the effectiveness of the recommendation.
Owner:BEIJING DAJIA INTERNET INFORMATION TECH CO LTD

Northwest Pacific Ocean ommastrephidae bartramii winter-spring stock colony abundance prediction method based on gray system

InactiveCN106203686AIncreased resource abundanceClimate change adaptationForecastingPacific oceanOcean sea
The invention discloses a northwest Pacific Ocean ommastrephidae bartramii winter-spring stock colony abundance prediction method based on a gray system. The northwest Pacific Ocean ommastrephidae bartramii winter-spring stock colony abundance prediction method comprises steps of (1) obtaining nino3.4 anomaly, PDO data, sea surface temperature SST and chlorophyll concentration ch1-a, and four sea environment and climate factors, (2) performing gray correlation analysis on four sea environment and weather factors, (3) choosing four factors having a highest association degree according to a gray association analysis result, wherein the four factors include: average sea surface temperature of an egg laying field in march, an interdecadal oscillation index of the pacific ocean in January, nino3.4 anomaly in march and average chlorophyll concentration in march; (4) establishing 8 prediction models based on the gray system according to four chosen factors; and (5) performing effective examination on 8 prediction models to choose a gray association model GM (1,4) structure as the prediction method for the northwest pacific ocean ommastrephidae bartramii winter-spring stock colony abundance. The prediction accuracy of the prediction method of the invention reaches more than 90%.
Owner:SHANGHAI OCEAN UNIV

Power distribution network contact effectiveness evaluation method

The invention discloses a power distribution network contact effectiveness evaluation method. The power distribution network contact effectiveness evaluation method comprises five steps: step 1, dataacquisition; step 2, data preprocessing; step 3, construction of an association model; step 4, value analysis; and step 5, visual displaying of the data. The power distribution network contact effectiveness evaluation method has the advantages that multi-dimensional data such as power failure frequency and new energy power generation are acquired by utilizing multiple data platforms such as an electric SCADA system, a power utilization information acquisition system, a PMS system and an OMS system; analysis is carried out from five perspectives of distribution line open capacity, voltage quality, protection sensitivity, power supply reliability and new energy access; and an existing power distribution network frame is diagnosed and deeply excavated, so that the contact perception capability of the power distribution network is improved, and limited resources are utilized, and support is provided for contact construction of the power distribution network to the maximum extent, and powercustomers are better served, and the industry competitiveness of companies in the incremental power distribution network market is improved, and a virtuous circle is formed.
Owner:STATE GRID ZHEJIANG HAIYAN POWER SUPPLY

Target feature-assisted multi-source data correlation method

The invention provides a target feature-assisted multi-source data correlation method, aiming to provide a correlation method with high utilization rate of measurement parameters and capable of improving the correlation accuracy of a radar and electronic support measures (ESM). The target feature-assisted multi-source data correlation method is realized through the following technical scheme thataccording to the correlation between heterogeneous features, a correlation classification rule of heterogeneous sensor data is determined, a mapping correlation model of a target motion feature space,a target recognition feature space and a target type space is established, a category identification frame is established, K neighbors being at a distance from target features are found according toa K-K-nearest neighbor-NN rule, and trust assignment is constructed based on the distance between a target and the neighbors of the target, an acceptance threshold value and a rejection threshold value; the features of the target at each sampling time are obtained, and then BK-NN training is carried out on the target features at each t time, local static evidences at corresponding times of the categories are obtained and are integrated to generate a static criterion; and the comprehensive results of dynamic classification of different features are calculated, and the correlation filtering results are obtained.
Owner:10TH RES INST OF CETC

Video sequence classifying method based on tensor time domain association model

A video sequence classifying method based on a tensor time domain association model comprises the steps of representing an original video sequence in a three-grade video tensor manner; performing tensor Tucker decomposition on the three-grade video tensor for obtaining a latent kernel tensor; applying an autoregression model on the time domain of the obtained latent kernel tensor for establishing relevance between adjacent time slices; dynamically studying the front process, updating the result until an algorithm is convergent, and obtaining an optimal result. The video sequence classifying method ensures time domain relevance and dependence of the video sequence after dimension reduction through limiting the time domain of the video sequence. The video sequence classifying method has advantages of sufficiently utilizing latent useful information in the video, eliminating redundant information in the video, ensuring high continuity of the video sequence in time domain, reducing classification difficulty of the video sequence, and improving classification accuracy of the video sequence. The video sequence classifying method is better than a traditional video sequence classification method and greatly improves classification precision.
Owner:TIANJIN UNIV
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