183 results about "Correlation matching" patented technology

The invention relates to the technical field of industrial production intelligent process control, in particular to an AI-based electrolytic manganese process production quality intelligent prediction method and system, and the system comprises a drift calibration module, a structure matching module, a process parameter inversion module, a path correction module and a deviation verification module. According to the method, dynamic compensation of deviation between input parameter drift and output parameters is achieved through the response relation between input and output of all links, the actual influence degree of fluctuation of all the parameters on the target control parameters and product quality is effectively recognized according to correlation matching of the periodic change of the production process and the fluctuation frequency of the target control parameters, and the accuracy of the product quality is improved. Potential interference of key process parameters on stability of each process is locked in time, diffusion starting time and space of impurities are clearly traced through path judgment of residual liquid concentration trend and raw material adding position, and migration path parameters are further adjusted based on ion retention behaviors of boundary detection points.

The invention discloses a time-frequency synchronization tracking and judging method based on GFSK (Gaussian Frequency Shift Keying). The method comprises the following steps: S1, positioning the initial position of a synchronization word by detecting a lead code; s2, extracting a fixed synchronization word, completing frame synchronization based on correlation matching, and positioning a starting point of an effective data segment; s3, a range cycle counter collects a central sampling point and two adjacent sampling points to form a candidate sampling point sequence; s4, dynamically and finely adjusting the range cycle counter to form a time sequence calibration sampling point sequence; s5, performing phase difference calculation on the time sequence calibration sampling point sequence, estimating continuous frequency offset and generating a compensation value; s6, applying the compensation value to construct a decision feedback equalizer with delay front and back terms; s7, performing interference suppression on the compensation sampling point sequence by using a decision feedback equalizer with delay front and back items, and outputting a soft decision value; and S8, executing three times of judgment, constructing a sliding reference sequence, and outputting a final bit judgment result. According to the method, the problem of poor GFSK demodulation robustness under Doppler disturbance is solved.

The invention provides a multi-agent linkage scheduling method and system applied to cross-domain information processing, and the method comprises the steps: firstly receiving a cross-domain information processing demand, carrying out the structural analysis, obtaining a demand feature set, calling a multi-agent capability feature library to carry out the correlation matching, generating an agent preliminary matching result set, and obtaining a multi-agent linkage scheduling result set; constructing a multi-agent linkage constraint condition based on the matching degree parameter and the task priority parameter, generating a linkage scheduling strategy, sending the scheduling strategy to a candidate agent to execute a task, collecting state feedback information in real time, and dynamically adjusting the scheduling strategy according to the state feedback information. And generating an adjusted strategy and synchronizing the adjusted strategy to each candidate agent to update task execution parameters, thereby realizing intellectualization, automation and dynamics of cross-domain information processing, and improving information processing quality and efficiency.

The invention discloses an intelligent security check method and system based on image recognition. The method comprises the following steps: acquiring initial multi-mode security check data in a security check system; performing noise reduction processing on the data, establishing a hybrid neural network based on local feature extraction and global context relation captured by a parallel module, and performing dynamic weighted fusion on multi-modal features through a cross attention mechanism; inputting the noise-reduced multi-modal security check data into a hybrid neural network for identification to obtain a security check image suspicious region; and carrying out association matching on the security check image suspicious area by using a Hungary algorithm, and carrying out early warning according to a matching result. Articles with complex shapes and similar densities are effectively distinguished, false detection and missing detection are reduced, and the security check accuracy is improved.

The invention discloses a role playing model fusion system and method based on retrieval and reflection, and belongs to the technical field of natural language processing. The implementation method comprises the following steps: 1, performing data cleaning on original role historical dialogue data, and performing semantic screening by using semantic similarity to form historical dialogue context data; 2, event knowledge associated with the roles is constructed through association degree matching; 3, constructing a role reflection strategy mode by using historical dialogue data, and generating role reflection data; 4, when a user inputs a question, replying by adopting a multi-source fusion mode based on role thinking; compared with the prior art, in a multi-scene task, a dynamic retrieval role knowledge base is utilized to screen task related background knowledge, and a thinking mode modeling framework based on a role reflection mechanism and a context fusion strategy are constructed to generate high-quality answers conforming to the context; and thus, the fusion ability of the role playing model is improved, and the consistency of role words and language styles is realized.

The invention discloses a base station power supply fault intelligent diagnosis method and system based on anomaly detection, and the method comprises the following steps: S1, collecting and preprocessing multi-modal monitoring data, and generating a multi-dimensional time series data set; s2, inputting the multi-dimensional time sequence data set into an improved ResNet-18 network for feature extraction, and generating a power supply fault feature vector; s3, inputting the power supply fault feature vector into an improved bee colony algorithm for anomaly detection, and outputting a power supply abnormal state mark and a power supply fault mode; s4, outputting a power supply fault diagnosis label through the classification function; s5, calling a power supply fault diagnosis label mapping rule, and outputting a power supply fault diagnosis result; and S6, based on the correlation matching degree, adjusting the convolutional layer weight of the improved ResNet-18 network and the fitness function parameter of the improved bee colony algorithm. According to the method, deep residual network modeling and a swarm intelligence anomaly identification mechanism are fused, and accurate identification, adaptive optimization and closed-loop diagnosis of the power supply fault of the base station are realized.

The invention discloses a landing positioning method and system based on fusion of vision and inertial navigation. The method comprises the following steps: collecting vision information of a current landing area; the visual information of the front landing area is mapped to an aligned grid of a map coordinate system through homography transformation, correlation matching is conducted on the visual information and a map through a frequency domain FFT algorithm, a matching result of rough matching is obtained, and rough matching is completed; the method comprises the following steps of: mapping an area subjected to rough matching and positioning to a grid aligned with a map coordinate system by utilizing homography transformation, performing spatial domain multi-window division on a larger range of images around the area subjected to rough matching and positioning, selecting a landmark area in each sub-window by applying an interest operator, performing spatial correlation matching on the landmark area and a map by utilizing a spatial correlation method, and performing spatial correlation matching on the landmark area and the map by utilizing a spatial correlation method. Finishing fine matching; inputting all matched observation results into an extended Kalman filter, and carrying out joint estimation on the matched observation results and the observation results of the inertial measurement unit; the method has the advantages that the robustness, the precision and the engineering applicability of an existing navigation positioning method are improved.

The invention discloses a BIM-based intelligent construction progress management system, electronic equipment and a storage medium, and the system comprises a component decomposition module which constructs a BIM model based on a current construction plan state, carries out the component decomposition of the BIM model through geometric analysis, and carries out the correlation matching of the split components and construction sections; the data synchronization module is used for collecting actual construction data of a construction site, extracting multi-source features of the construction data and fusing the multi-source features to obtain fused multi-source features; the dynamic evaluation module is used for dynamically evaluating the deviation between the actual progress and the planned progress based on the fused multi-source features and the associated and matched component information; and the deviation correction adjustment module is used for generating a deviation correction strategy based on the deviation by using a heuristic optimization algorithm, and completing intelligent construction progress management based on the deviation correction strategy.

The invention provides an AI intelligent recommendation method and system applied to an online patent operation digital platform, and the method comprises the steps: obtaining user full-amount behavior data and patent full-period attribute data, carrying out the demand intention analysis and value dimension modeling, generating a user demand intention feature set and a patent value dimension feature set, and carrying out the calculation of the user demand intention feature set and the patent value dimension feature set; and on this basis, an AI intelligent recommendation model is used to carry out multi-dimensional association matching on the two, an initial recommendation candidate set is generated, dynamic adjustment is carried out based on real-time interaction information of the user, and finally an optimized patent recommendation sequence is generated and output to a user terminal interface, so that precision and dynamic patent recommendation are realized, and the user experience is improved. And the patent operation efficiency and the user experience are effectively improved.

The invention discloses a mining area subsidence dynamic monitoring method, device and equipment, a medium and a product, and relates to the field of mining area mining subsidence monitoring. The method comprises the following steps: firstly, carrying out data preprocessing on an unmanned aerial vehicle image and laser radar point cloud time sequence data observed in the same period to obtain DOM and DEM data in each period; based on each period of DOM data, extracting east-west and south-north horizontal displacements between any two periods of DOM data by using a normalized cross-correlation matching algorithm; for the newly-added DOM data, dynamically updating historical and newly-added east-west and south-north direction horizontal displacements according to a sequential least square adjustment principle to obtain adjusted east-west and south-north direction horizontal displacements; carrying out plane position correction on DEM data of each period based on the adjusted horizontal displacement in the east-west direction and the south-north direction; and performing difference calculation on the corrected DEM data of each period and the reference DEM data before deformation to obtain time sequence subsidence data of the mining area, thereby realizing dynamic monitoring of mining area subsidence, and improving mining area subsidence monitoring precision and efficiency.

The invention discloses a fault self-diagnosis method and system for a temperature transmitter under real-time monitoring, and relates to the technical field of fault self-diagnosis, and the method comprises the steps: collecting the spatial position information and working state parameters of high-frequency electrical equipment, carrying out the electromagnetic interference analysis through combining the spatial position information of a target temperature transmitter, and generating an electromagnetic interference distribution map; establishing an electromagnetic-temperature influence correlation, arranging an electromagnetic interference sensing module to obtain an electromagnetic interference change curve, and monitoring a temperature signal fluctuation curve in real time; performing association comparison analysis to generate an association matching result; and when abnormal matching occurs in the correlation matching result, temperature transmitting signal reconstruction is carried out to generate transmitter compensation parameters for transmitting signal correction, and fault risk early warning is carried out. According to the invention, the technical problem in the prior art that the fault is difficult to find in time and position accurately when the temperature transmitter is influenced by electromagnetic interference is solved, and the technical effect of improving the accuracy and real-time performance of fault diagnosis of the temperature transmitter is achieved.

The invention discloses a monitoring image multi-target tracking method based on deep learning, and relates to the technical field of digital image processing, and the method comprises the following steps: S1, generating a multi-scale feature pyramid; s2, extracting causal feature vectors; s3, generating a discrete codebook index; s4, constructing a dynamic graph; s5, inputting the dynamic graph into an improved ASTGCN network, iteratively fusing space-time attention weights and Hamilton dynamics evolution characteristics between nodes through cascaded Hamilton space-time blocks, and generating a final prediction state of each historical track node; s6, solving an optimal correlation matching matrix by using a Hungary algorithm; and S7, extracting all active track information. According to the method, the limitations of identity drift caused by variable appearance characteristics and inaccurate prediction caused by lack of physical priori in a traditional multi-target tracking method are overcome, and an efficient, accurate and robust solution is provided for intelligent video monitoring.

The invention discloses an image retrieval method and device, and relates to the technical field of knowledge distillation, and the method comprises the steps: taking a query text input by a user as a retrieval, and screening and outputting a target image consistent with text content description from a preset image library through text semantic comprehension and an image feature matching algorithm, the technical problems that in the related technology, it is difficult to deeply mine core knowledge such as fine-grained probability distribution and coarse-grained structural features of an attention mechanism in the image retrieval process, a distillation process cannot cover full-dimensional knowledge of an attention level, and the integrity of knowledge migration is insufficient are solved. The technical effects that through deep correlation matching of the text and the image, the user can be helped to rapidly position the target image through simple text description, the image search operation process is effectively simplified, and efficient and convenient image retrieval and browsing experience are provided for the user are achieved.

The invention relates to the technical field of model training, in particular to an AI algorithm model training management system, which comprises the steps of analyzing a data value association matching degree in an AI algorithm model training process based on training data information and model deployment environment information of an AI algorithm model in the model training process; in combination with training configuration information and model architecture information of the AI algorithm model in the model training process, the effective utilization degree of computing resources in the AI algorithm model training process is analyzed; evaluating the training effect of the AI algorithm model based on the data value association matching degree and the effective utilization degree of the computing resources; according to the training effect evaluation result, the training scheme of the AI algorithm model is adjusted, the reliability and efficiency of the training process of the AI algorithm model can be remarkably improved, and the high performance and high robustness of the AI algorithm model in a real scene are ensured.

The invention belongs to the technical field of flow measurement, and particularly relates to an ultrasonic flow measurement method which remarkably improves measurement precision and system energy efficiency by intermittently updating zero flow velocity reference flight time and pre-storing zero flow velocity waveform data in combination with a correlation algorithm and a parabola interpolation technology. Compared with a traditional threshold value method and a TI scheme, the method abandons threshold value dependence, dynamic correlation matching is carried out by utilizing a standard waveform of factory calibration and a real-time signal, absolute flight time is calculated, and a wave hopping error caused by long-term signal degradation is effectively avoided; meanwhile, a pre-stored waveform template and a regular self-calibration mechanism suppress noise, temperature drift and transducer aging influences, breakthrough is achieved in the aspects of anti-interference performance, long-term reliability and low power consumption, and a high-cost-performance solution is provided for gas flow metering.

The invention discloses a community comment management method and system, and relates to the technical field of data processing, the method can capture user interest changes in real time based on a dynamic interest map generated by registration information and short-term interaction behaviors, quickly screen high-correlation comments through association matching of interest levels, and improve the user experience. It is ensured that the recommended content is deeply matched with user preferences, and meanwhile the redundant data processing burden is greatly reduced. And through comprehensive analysis of a multi-modal quality evaluation system fused text, image and user behavior, and dynamic adjustment of community type differentiation weight distribution and real-time interactive feedback, false, contradictory or low-quality content is effectively identified, and compliance review and high-quality content exposure are enhanced. According to the embodiment, high-quality comments are accurately recommended through the dynamic interest map and multi-modal evaluation, the content ecology is optimized in real time, the timeliness is guaranteed, and the system stability is enhanced.

The invention discloses a small sample point cloud semantic segmentation method, computer equipment and a storage medium, and relates to the technical field of three-dimensional computer vision, the small sample point cloud semantic segmentation method mainly comprises the following steps: according to a support set point cloud and a query set point cloud, using an embedded network to obtain support set features and query set features, using a feature correlation matching module to obtain enhanced support set features and enhanced query set features; according to the enhanced support set features, obtaining a support prototype by using a similarity perception prototype number constraint method and a multi-prototype generation method; according to the enhanced query set features and the support prototype, utilizing a prototype correction module to obtain a corrected support prototype; and according to the enhanced query set features and the corrected support prototype, obtaining a prediction mask by using a KNN graph construction and label propagation method. By implementing the small sample point cloud semantic segmentation method, the computer equipment and the storage medium provided by the invention, the small sample point cloud semantic segmentation precision can be improved.

The invention discloses a power bank with a data storage function and an electromagnetic interference suppression method thereof, and the method comprises the steps: obtaining the operation parameters of a wireless charging coil and the operation indexes of a high-speed data link, and carrying out the segmentation statistics and time-frequency correlation matching processing, thereby obtaining an interference characteristic parameter set; performing spread spectrum migration and duty ratio-phase joint modulation on the coil driving signal; executing cache rearrangement and time sequence revision on the to-be-sent data frame; carrying out adaptive adjustment on the error control coding parameter according to the interference intensity value; and performing comprehensive optimization processing on each parameter set to generate an updated control parameter set, and forming a closed-loop control system. According to the technical scheme, under the condition that hardware shielding is not increased, fine cooperative control over the charging magnetic field and data transmission can be achieved through a software algorithm, electromagnetic interference is effectively restrained, wireless charging and high-speed data transmission can be stably and parallelly operated under the condition that space is limited, and the reliability of data transmission and the overall user experience are improved.

The invention belongs to the technical field of artificial intelligence and computers, and particularly relates to a multi-modal data intelligent identification and early warning system for a low-altitude safety emergency scene. The objective of the invention is to solve the problems of difficult small low-altitude target detection and lagging emergency response in a complex urban environment. The system integrates radio frequency, optical, acoustic and meteorological multi-source sensing nodes, and target fusion tracking is realized through space-time reference synchronization and cross-modal correlation matching; threat cognition is carried out by using a deep neural network with an attention mechanism, three-dimensional risk assessment is carried out by combining Monte Carlo simulation and a dynamic weighting algorithm, and yellow, orange and red three-level early warning instructions are generated; an early warning result is pushed to a multi-department collaborative response platform through an encryption interface, and the whole process is traceable through block chain evidence storage. According to the system, the low-altitude security situation awareness precision and the emergency response efficiency are remarkably improved.

The invention discloses a satellite Internet of Things uplink signal detection method and a satellite Internet of Things uplink signal detection system, which integrate traditional signal processing and advanced spiking neural network technologies, realize high-precision frame synchronization by performing two-dimensional cross-correlation matching in a time-frequency domain, and perform low-power-consumption and high-robustness symbol judgment by using an event-driven spiking neural network. Compared with a traditional method based on FFT or matched filtering, the method has higher adaptability and detection performance in a satellite Internet of Things scene with large Doppler frequency shift, low signal-to-noise ratio and dense users.

The invention relates to a time-lapse seismic data time difference correction method and device, electronic equipment and a medium, and relates to the field of seismic data processing, and the method comprises the steps: carrying out the preprocessing of two groups of time-lapse seismic data collected at a preset time interval; based on a first constraint of a preset time window length and a second constraint of a preset time-shifting maximum value, performing cross-correlation matching calculation on each sampling point in the two groups of time-shifting seismic data after preprocessing to obtain a cross-correlation coefficient; according to a preset time window length, the distance between the sampling points in the two groups of time-lapse seismic data and the cross correlation coefficient, generating a matching error function between the sampling points in the two groups of time-lapse seismic data; performing dynamic planning according to the matching error function, and determining an optimal matching path for connecting corresponding matching sampling points in the two groups of time-lapse seismic data; and carrying out time difference correction on the corresponding matched sampling points according to the optimal matching path. The time difference correction of the time-lapse seismic data can be realized more accurately, and the time consistency of the time-lapse seismic data is ensured.

The invention discloses a visual anti-occlusion tracking method based on AIS and video fusion. The method comprises the following steps: synchronously obtaining AIS data and corresponding video data; preprocessing the AIS data, predicting latitude and longitude coordinates of the AIS data, projecting the latitude and longitude coordinates to a video pixel plane, and generating a ship AIS track; meanwhile, identifying a ship bounding box in a video frame by using a video detection algorithm, and tracking by using a three-stage association anti-occlusion tracking algorithm; the similarity between the AIS trajectory and the video trajectory is calculated through a dynamic time warping algorithm, and the correlation matching of the AIS trajectory and the video trajectory is realized by using a Hungary matching algorithm, so that a stable and anti-shielding ship tracking trajectory fusing AIS and video information is obtained. According to the invention, the problem that pure visual tracking is easy to fail under the shielding condition is effectively solved.

The invention relates to the technical field of traffic management, in particular to a traffic video event detection method and system based on space-time correlation analysis, and the method comprises the steps: obtaining traffic video data, traffic text description data and traffic equipment state data, carrying out the preprocessing of the data, and unifying the format; extracting space and time characteristics of the video frame sequence, calculating a target space-time association weight by means of a space-time attention mechanism, and establishing a space-time association model; identifying a traffic event according to a model rule to obtain a preliminary result; the preliminary detection result is verified and supplemented through text association matching and image feature matching in combination with user query, a final event detection result is obtained, and the space-time association model is updated; and presenting a final event detection result to a user in a visual form. According to the method, multi-modal traffic data can be fused, the traffic incident detection precision in a complex scene is improved, a model can be optimized in combination with user requirements, a result is visually presented, and efficient traffic management is assisted.

The invention discloses a grid exhaustion search cross-pulse pairing method based on correlation matching, and belongs to the technical field of radio signal positioning and detection. According to the method, aiming at the problems of large cross-pulse signal pairing calculation amount and low accuracy in a multi-aircraft cooperative positioning system, efficient and accurate cross-pulse pairing is realized by establishing a cross-pulse boundary model, a symbol matching constraint mechanism and a related matching verification mechanism. The method comprises: determining upper and lower bounds of a cross-pulse according to a geometrical relationship; correcting the search range by using symbol matching; solving a candidate target solution in the limited interval by adopting grid exhaustion search; and a unique effective solution is screened through time and geometry consistency verification. The method can effectively reduce the calculation complexity, improves the cross-pulse pairing precision and uniqueness, and is suitable for a passive positioning system in a multi-target, multi-base-station and low-signal-to-noise-ratio environment. Experiments prove that the pairing time can be shortened by about 50% while high positioning precision is kept, and the method has high engineering application value.

The invention provides a dialogue data processing method and device, electronic equipment and a storage medium, relates to the technical field of artificial intelligence, and is suitable for the fields of financial science and technology and medical health. The method comprises the steps of obtaining a target question; obtaining historical dialogue data according to the target question, wherein the historical dialogue data comprises candidate historical dialogue groups; screening the candidate historical dialogue groups according to the target question to obtain a target historical context; performing answer generation according to the target question and the target historical context to obtain a target answer; combining the target question and the target answer to obtain a target dialogue; performing correlation matching according to the target dialogue and each candidate historical dialogue group to obtain a group matching degree; and updating the candidate historical dialogue groups according to the group matching degree and the target dialogue. The dialogue data is grouped and sorted, and the dialogue data processing accuracy is improved.

The invention discloses a house building deformation monitoring method and device combined with artificial intelligence, and relates to the related technical field of building deformation monitoring, and the method comprises the steps: carrying out the deformation sensitivity analysis after obtaining the information of a to-be-monitored house building through interaction, and building deformation sensitive attention; house building information is analyzed, feature salient point recognition is carried out, and candidate feature comparison points are established; establishing a first adaptation result according to the observation adaptation analysis result; correlation matching of the candidate feature comparison points is carried out, and a second adaptation result is established; and after feature comparison point confirmation is carried out by using the second adaptation result, house building deformation monitoring is carried out by using the distributed monitoring sensors and the feature comparison points. The technical problems of limited house building deformation monitoring precision, insufficient monitoring efficiency and poor adaptability to complex building structures caused by difficulty in comprehensively covering key parts and large environmental interference in the prior art are solved, and the technical effect of improving the house building deformation monitoring efficiency, accuracy and adaptability is achieved.

The invention discloses a real-time fracture characteristic parameter estimation method based on active fault data, and belongs to the technical field of earthquake early warning. The method comprises the steps of receiving and processing strong vibration data in real time; carrying out identification and binarization processing on a fracture near-field area of the observation seismic oscillation field; constructing a general fault fracture template library; dynamically generating a specific fault fracture template library in real time; virtual stations are introduced into a station network sparse area and an edge area, and an observation blind area is complemented through weighted fusion of an actual observation value and a GMPE predicted value; performing correlation matching on the real-time strong vibration observation data and a fault fracture template, and searching an optimal template; and outputting the current fault fracture characteristic parameters based on the optimal matching template. According to the method, the existing active fault database is adopted to dynamically generate the fracture template to process the known fault fracture caused by the active fault, and the universal template is utilized to process the unknown and hidden fault fractures, so that the accuracy of real-time estimation of the seismic motion field in the great earthquake fracture process is remarkably improved.

The application discloses a kind of based on coal pile height field matching and space-time global optimization combined mapping method, it is related to the positioning technical field of ship unloader, to solve the problem that point cloud obtained when ship unloader scans in high altitude is relatively sparse, and the data of ship unloader is difficult to directly match;Method includes: S1, using the multiscale height field correlation matching algorithm of ship unloader and ship unloader coal pile point cloud, using coal pile as common feature body, by matching its overall height distribution structure to find common area by gridding;S2, point cloud registration is carried out to common area, and the initial transformation relationship of ship unloader and ship unloader is determined;S3, construct global constraint factor graph optimization model, input the key frame point cloud and map data of ship unloader and the point cloud data of ship unloader, output the combined map of ship unloader and ship unloader.The method of the application can significantly improve the robustness of initial registration, and realize cross-time and space error compensation, improve map global consistency.

The present invention discloses a device and method for multi-type frame recognition and judgment in meteor trail communication, belonging to the field of burst communication technology; the multi-type frame recognition device includes: a matching filter for estimating the position of the frame header during transmission, one or more specific frame type identifiers for completing the comparison between the frame header distance and the set distance, and a frame type judge for judging the received frame type. The present invention only requires one set of frame header related matching circuits, and in the case of a large number of frame types, the method can complete the task of frame type recognition more stably and efficiently. In addition, the method strengthens the synchronization constraint conditions and does not have the problem of multiple frame header sequences interfering with each other. Therefore, in the case of low signal-to-noise ratio, the method has a lower probability of misjudgment and false detection.

The invention discloses a data mining method based on a dynamic graph neural network, and relates to the technical field of data mining, and the method comprises the steps: obtaining the purchase information of each user in a platform; performing data mining on the browsing information of the user, and determining behavior properties of the user during purchase; performing historical matching on the careful deliberate commodities, performing commodity information analysis on commodities with repeated characteristics in the careful deliberate commodities, and determining purchase influence factors; marshalling commodities purchased at the same time based on the time information to obtain commodity group data, matching and analyzing the commodities according to the commodity group data, and determining the correlation degree and the purchase cycle between the commodities; the retrieval information of the user is read, commodity recommendation is conducted on the user according to the retrieval information and the purchase influence factors, purchase adding information of the user is obtained, association degree matching is conducted on the purchased commodities according to the purchase adding information, and the associated commodities are recommended. The method has the effect of improving the commodity recommendation accuracy.