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179 results about "Preference vector" patented technology

Marketing advertisement intelligent putting method and system based on AI

The invention discloses an AI-based intelligent marketing advertisement putting method and system, and the method comprises the steps: collecting and fusing heterogeneous user behavior data streams from a plurality of independent platforms in real time, and generating a user behavior feature map with a unified space-time mark; on the basis of the user behavior characteristic spectrum, a deep auto-encoder and a space-time diagram convolutional network are used for joint modeling, and fine-grained scene-decoupled user interest preference vectors are generated; inputting the user interest preference vector into a pre-trained generative adversarial network, and dynamically generating a personalized advertisement material highly matched with the current user interest preference and scene; and taking the personalized advertisement material as a candidate arm, and dynamically generating an advertisement putting strategy including an advertisement display form, a display opportunity and a display channel in combination with a current user state and historical putting feedback data. By utilizing the embodiment of the invention, the accuracy and the real-time performance of advertisement putting can be improved, and the advertisement conversion rate and the user experience are improved.
Owner:GUANGDONG ADVERTISEMENT

Disassembly line balance optimization method and system based on multi-objective reinforcement learning, and medium

The invention relates to the field of data processing technology prediction, and discloses a disassembly line balance optimization method and system based on multi-objective reinforcement learning, and a medium, and the method comprises the steps: S1, obtaining input data, and carrying out the preprocessing; s2, constructing a state space, an action space and a target function, and deploying a training environment; s3, training a multi-target reinforcement learning model: introducing a preference vector through an MO-DQN algorithm to dynamically adjust a target weight, calculating a target function according to the disassembly data obtained in the S1, optimizing a plurality of targets in the S2, and selecting an action strategy in combination with an epsilon-greedy strategy and an NSGA-II algorithm; and S4, applying an optimal strategy generated by the trained model to task allocation in the disassembly line. By introducing the preference vector, the target weight is dynamically adjusted according to the specific demand of the task, the conflict between the targets can be effectively processed, the optimization strategy can be automatically adjusted according to the change of different situations, and the task scheduling and resource allocation efficiency in the disassembly task is improved.
Owner:QINGDAO UNIV OF TECH

Advertisement putting strategy optimization method and system based on preference data collaboration

The invention discloses an advertisement putting strategy optimization method and system based on preference data collaboration, and relates to the technical field of advertisement putting, and the method comprises the steps: collecting the internal user data of a local advertisement putting platform, obtaining the external user data of a third-party platform through a safety data interface, carrying out the integration and preprocessing of the data, and obtaining an advertisement putting strategy; extracting explicit preference data and implicit preference data; a user-advertisement scoring matrix is constructed based on the preference data, and user preference vectors are generated after decomposition; acquiring copywriting text, image and category information of an advertisement to be put, constructing an advertisement feature expression model and generating an advertisement feature vector; calculating a matching degree score based on the user preference vector and the advertisement characteristic vector, and dynamically optimizing an advertisement putting strategy according to the score; according to the method, through comprehensive utilization of explicit and implicit preferences of the user, more accurate user interest modeling and advertisement matching are realized, and the advertisement putting effect and putting efficiency are effectively improved.
Owner:GUANGDONG XUANRUN DIGITAL INFORMATION TECH CO LTD

Personalized learning resource recommendation method and system based on deep learning

The embodiment of the invention relates to the technical field of artificial intelligence, and provides a personalized learning resource recommendation method and system based on deep learning. The method comprises the following steps: acquiring a user learning scene and a real-time operation behavior to construct a heterogeneous interaction graph; in combination with a Transform meta-coding model of an MAML architecture, pre-training a meta-model based on a real-time operation behavior to adapt to fine tuning of scene parameters; embedding a domain knowledge graph entity to obtain a semantic association vector, and capturing an entity pre-repair relationship; performing multi-hop reasoning on the heterogeneous interaction map through a GAT map attention network, and iteratively generating a user preference vector and a learning resource feature vector; for interactive sparse users, real-time operation behaviors are input into the pre-training meta-model to generate exclusive recommendation parameters, new resource feature vectors are generated in combination with the knowledge graph, and user preference vectors are matched based on the exclusive parameters; and predicting the interaction probability according to the matching vector, and outputting the target recommendation information according to the interaction probability so as to improve the recommendation efficiency and accuracy of the learning resources and guarantee the adaptation degree of the learning resources and the user.
Owner:CHONGQING THREE GORGES MEDICAL COLLEGE

Personalized costume design recommendation system and method based on AI and big data

The invention discloses a personalized costume design recommendation system and method based on AI and big data, and relates to the technical field of personalized recommendation data processing, the system comprises an information acquisition module, a feature analysis module, a preference analysis module and a design recommendation module; the information acquisition module is used for acquiring user multi-modal information; the feature analysis module is used for extracting and fusing user preference features from the user multi-modal information and calculating a user multi-modal interest expression vector; the preference analysis module is used for carrying out joint modeling by combining a Transform network and a GRU structure based on the user multi-modal interest expression vector, and generating a user multi-dimensional dynamic preference vector through fusion of a gating mechanism; and the design recommendation module is used for outputting a personalized costume design recommendation result through a reinforcement learning model in combination with the multi-dimensional dynamic preference vector of the user.
Owner:QINSILK COM

Government affair information recommendation method and device based on knowledge graph and multi-mode fusion

The embodiment of the invention discloses a knowledge graph and multi-modal fusion government affair information recommendation method and equipment, belongs to the technical field of information recommendation, and solves the problem that the matching degree between a recommendation result and a demand is relatively low when a user obtains government affair information. Comprising the steps of generating a user preference vector based on a user historical retrieval behavior, and performing coarse-grained retrieval on a government affair knowledge graph to obtain candidate knowledge sub-graphs; fusing the candidate knowledge sub-graphs with multi-modal data uploaded by the user to obtain a multi-modal semantic vector; performing multi-hop information aggregation processing on the multi-modal semantic vector, and performing fine-grained retrieval based on an aggregated graph node vector and a user query vector; based on a reordering mechanism, reordering the retrieval results, and determining recommended government affair knowledge sub-graphs; and based on the multi-modal data and the recommended government affair knowledge subgraph, performing visual question and answer and visual common sense reasoning processing to obtain a multi-modal reasoning result, and based on user requirements, sending the multi-modal reasoning result as recommended content to the user.
Owner:SHANDONG BANNER INFORMATION CO LTD

Education large model autonomous teaching planning method and system based on intelligent agent architecture

The invention relates to the technical field of data processing, and discloses an intelligent agent architecture-based education large model autonomous teaching planning method and system. The method comprises the following steps: inputting a cognitive ability matrix, a knowledge mastery degree vector and a learning preference vector into an improved Bayesian knowledge tracking algorithm, and adding an agent parameter consistency constraint term and a teaching planning coordination factor to obtain a learning track state vector; based on the learning track state vector, multiple agents cooperatively generate a recommendation content identification sequence, a difficulty level sequence and a time distribution sequence; and monitoring the knowledge mastery degree vector variation, and reordering the recommended content sequence when the knowledge mastery degree vector variation exceeds a preset threshold value to generate a teaching sequence. According to the invention, the Bayesian knowledge tracking algorithm is improved, the agent parameter consistency constraint term and the teaching planning coordination factor are fused, and coordination and unification of multi-agent teaching decisions in a communication-free environment are realized.
Owner:TIANJIN GROWTH ALGORITHM EDUCATION TECHNOLOGY CO LTD

Underwater wireless sensor network path sensing routing method based on deep reinforcement learning

The invention relates to an underwater wireless sensor network path sensing routing method based on deep reinforcement learning, which comprises the following steps that: firstly, a node constructs and periodically updates a transmission preference model based on local and neighbor node interaction information; secondly, deploying a deep reinforcement learning model at each underwater sensor node to perform distributed routing strategy learning; and finally, generating a global guide vector by the sink node according to the routing path information of the received data packet, reversely spreading the global guide vector to the source node, fusing the global guide vector with a local transmission preference vector of the node to generate a guide reward, optimizing the deep reinforcement learning model, and updating a routing strategy. According to the method, the problems of difference and complexity of underwater transmission tasks can be solved, and the network data transmission efficiency and the overall service quality are improved in combination with local preference and global guidance while the node online learning is kept to adapt to the dynamic underwater environment.
Owner:HOHAI UNIV

Personalized travel route planning method, system and terminal based on large language model

The invention discloses a personalized travel route planning method and system based on a large language model, and a terminal. The method comprises the steps: collecting multi-source data information, carrying out the extraction and standardization of the multi-source data information, obtaining a target multi-source data set, and constructing a travel knowledge graph according to the target multi-source data set; the method comprises the following steps: constructing a big language model, performing instruction type fine tuning on the big language model according to a tourism knowledge graph and a preset fine tuning task, enhancing the big language model after instruction type fine tuning through a knowledge distillation technology to obtain a tourism route planning model, and outputting a user preference vector and a candidate scenic spot set according to the tourism route planning model. And according to a user preference vector and the candidate scenic spot set, generating a personalized travel route plan through a traditional route optimization algorithm. According to the method, entity extraction and knowledge graph dynamic modeling are carried out on the multi-source heterogeneous tourism data, deep semantic understanding and preference analysis are carried out in combination with a large language model, personalized tourism routes can be provided, and the travel efficiency of users is improved.
Owner:SHENZHEN TECH UNIV

Tourist hotel dynamic scoring and recommending method and system based on multi-factor fusion

The invention relates to the technical field of tourism resource information processing, in particular to a tourism hotel dynamic scoring and recommending method and system based on multi-factor fusion, and the method comprises the steps: constructing a dynamic game portrait containing a user space-time behavior mark and hotel multi-modal attributes, and carrying out the dynamic scoring and recommending of a hotel based on the dynamic game portrait; the method comprises the following steps: analyzing a recessive preference vector of a user and an adaptive strategy vector of a hotel by simulating an interactive game process of the user and hotel attributes, performing dynamic equalization matching on the recessive preference vector and the adaptive strategy vector to generate a hotel situation score, generating an anti-consensus recommendation sequence according to the hotel situation score, and performing recommendation on the hotel situation according to the anti-consensus recommendation sequence. The anti-consensus recommendation sequence is subjected to interpretable packaging, and a final recommendation result with a decision guide clue is output to the user, so that the user can obtain a personalized hotel recommendation list and can also understand logic and diversity values behind recommendation, and the user experience is improved. Therefore, the transparency, the user trust degree and the exploration satisfaction degree of the recommendation system are improved.
Owner:SHENZHEN SOLV INTELLIGENT TECH CO LTD

Intelligent furniture design system based on AI big data

The invention discloses an intelligent furniture design system based on AI big data, and relates to the technical field of artificial intelligence, and the system comprises a data collection module which is used for collecting user behavior data, environment data and market data; the data processing module is used for carrying out cleaning, feature extraction and fusion on the collected data to generate structured design input parameters, and the structured design input parameters comprise user preference vectors and spatial constraint parameters; according to the intelligent furniture design system, accurate analysis of design requirements is achieved by comprehensively collecting user behaviors, environment and market data, the problem that design requirement analysis is incomplete due to the fact that a traditional data collection means is single is solved, the system adopts an advanced data processing technology, and the design requirement analysis accuracy is improved. Valuable design input parameters are effectively extracted and fused, a solid foundation is provided for personalized design, and a design generation and optimization module based on a deep learning model can automatically generate and optimize a furniture design scheme.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

Game information recommendation method and device, equipment and storage medium

The invention belongs to the technical field of computers, and discloses a game information recommendation method and device, equipment and a storage medium, and the method comprises the steps: obtaining user behavior data of a user and game reference data of each game; analyzing the game reference data of each game to obtain a game feature vector of each game; analyzing the user behavior data to obtain a user preference vector; matching the user preference vector with each game feature vector to obtain a plurality of recommended games to be selected; reordering the to-be-selected recommended games according to the game reference data to obtain a recommended game list; and generating a game recommendation interface of the user according to the recommended game list and the interface recommendation areas with different sizes. According to the method, the determination accuracy of the user preference vector and the game feature vector and the accuracy of the to-be-selected recommended game can be improved.
Owner:SHANGHAI CHANGZHI NETWORK TECHNOLOGY CO LTD

Cross-modal content recommendation method and device, equipment, medium and product

The invention relates to the technical field of recommendation systems, and discloses a cross-modal content recommendation method and device, equipment, a medium and a product. The method comprises the following steps: acquiring historical interaction behaviors of a user on different platforms and content for interaction; for each content, calculating a preference coefficient of the content according to the interaction behavior; coding each content to obtain a content semantic vector, and performing weighted summation on each content semantic vector and the preference coefficient thereof to obtain a user preference vector for the user; executing content recommendation based on the user preference vector; wherein to-be-queried content vectors in the to-be-queried content vector set are obtained by encoding to-be-queried content of the current platform based on a pre-trained encoding model; the coding model is obtained by adopting a plurality of user preference vectors and content semantic vectors related and unrelated to each user preference vector based on comparative learning training. According to the method, accurate recommendation of cross-platform and cross-modal contents can be realized.
Owner:INSPUR GENERSOFT CO LTD

Big language model dialogue recommendation method based on multi-modal geographic information fusion and context modulation

The invention discloses a big language model dialogue recommendation method based on multi-modal geographic information fusion and context modulation, which comprises the following steps of: firstly, coding and fusing a text address, geographic coordinates and numerical attributes to obtain a geographic context matrix; then intention modeling is carried out to generate user intention representation, then context feature modulation is utilized, dynamic modulation is carried out on the user intention representation by utilizing an asymmetric fusion mechanism, a context guiding signal containing geographical constraints is generated, and finally, the context guiding signal is spliced before the user intention representation. The big language model input to the parameter freezing obtains user preference vectors and calculates recommendation scores with the candidate positions, the candidate positions are sorted according to the recommendation scores, and the candidate positions with high scores are recommended to the user. According to the method, on the premise that internal parameters of the large language model are not changed, the geospatial reasoning ability is effectively given to the large language model, and the accuracy and interpretability of dialogue recommendation are remarkably improved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Multi-target vehicle path optimization method based on enhanced self-attention mechanism

The invention relates to the technical field of intelligent logistics and path optimization, and particularly discloses a multi-target vehicle path optimization method based on an enhanced self-attention mechanism. The method comprises the following steps: S1, constructing an enhanced self-attention encoder, and carrying out deep fusion encoding on input node features and preference vectors through a self-attention module integrating channel attention, SwiGLU activation and adaptive scaling; s2, constructing a path generation network based on a problem scale perception decoder, embedding problem scale information injection nodes, and generating a path sequence in an autoregression mode; and S3, based on a reinforcement learning framework, carrying out model training in combination with a random preference strategy, and generating a Pareto frontier approximate solution of a multi-target vehicle path problem. Through the collaborative design, the model expression ability, the generalization ability and the solving precision are improved, and an efficient and reliable solution is provided for the multi-target vehicle path problem.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Education resource sharing method and system based on education cloud platform

The invention discloses an educational resource sharing method and system based on an educational cloud platform, and the method comprises the following steps: S1, constructing a multilayer knowledge graph, S2, generating a user preference vector based on a user behavior sequence Su = [e1,..., eT], S3, calculating a resource recommendation score, and S4, dynamically adjusting a recommendation strategy according to a learning stage. Multi-dimensional matching driven by a knowledge graph: by constructing a three-dimensional knowledge graph comprising a resource layer, an attribute layer and an application mode layer, the system can identify semantic association and structural association between educational resources, and dynamic preference vectors are generated in combination with user behavior data, so that accurate matching is realized. For example, actual measurement and display of a certain online education platform show that the recommendation accuracy is improved by 23.7%.
Owner:ZHUMADIAN VOCATIONAL & TECHN COLLEGE

Multi-scene switching method, system and equipment based on song ordering table and medium

The invention belongs to the field of man-machine interaction, and particularly discloses a multi-scene switching method, system, equipment and medium based on a song ordering table, and the method comprises the steps: collecting the behavior data of residence time, song ordering frequency and interaction intensity of a user in a virtual environment through a sensor, and processing the behavior data through a long and short term memory network, obtaining a user dynamic preference vector; matching is carried out according to the user dynamic preference vector and a preset scene type library, if the matching degree is higher than a threshold value, it is judged that the current scene preference is stable, otherwise, it is judged that potential switching intentions exist, and potential switching intention probability distribution is obtained through the judgment; after the probability distribution of the potential switching intention is obtained, a support vector machine classifier is adopted to train association features among multi-scene data; the invention aims to solve the problems of resource loading delay and unsmooth interface switching caused by rapid change of user scene preference in a virtual environment in the prior art.
Owner:CHENGDU YINYUE CHUANGXIANG TECH CO LTD

Multi-modal data joint query analysis method and system supporting natural language interaction

The invention provides a multi-modal data joint query analysis method and system supporting natural language interaction, and relates to the technical field of data query analysis. Historical operation data, audio data and text data of a user on an intelligent search platform supporting natural language interaction are collected; modeling the historical operation data to obtain a user preference vector, performing voice recognition and text standardization processing on the audio data to obtain standard query data, and integrating the standard query data and the text data into context information; an attention mechanism-based algorithm is used for semantic understanding and intention recognition to obtain an intention feature vector, and the intention feature vector is fused with a user preference vector to obtain a classification result; and finally, based on the result, querying in a preset multi-modal database through a collaborative filtering algorithm to obtain a joint query result, so that personalized accurate query of the multi-modal data under natural language interaction can be realized, and the result fits the intention and long-term preference of the user.
Owner:FIVE DIMENSIONS INTELLIGENT TECHNOLOGY (SHANGHAI) CO LTD +1

Cross-domain AI knowledge aggregation method based on collaborative filtering

The invention discloses a cross-domain AI knowledge aggregation method based on collaborative filtering. The method comprises the steps that S1, multi-source heterogeneous AI knowledge data and user behavior data are collected and preprocessed; s2, constructing a double-tower cross-domain embedded network, and outputting a cross-domain semantic fusion sequence; s3, modeling and analyzing user preferences through the improved Bi-GRU network, and generating user behavior preference vectors; s4, performing semantic diffusion and neighborhood reasoning on the cold start user, and complementing interest features; s5, adopting a double-tower recall structure and an XGBoost model to sort and generate a cross-domain recommendation list; s6, constructing a context rule base to execute context adaptability judgment, and generating a matched knowledge aggregation recommendation list; and S7, performing incremental learning according to user feedback information, and dynamically updating the double-tower cross-domain embedded network and the improved Bi-GRU network. According to the method, the knowledge matching precision, the cold start adaptability and the scene adaptation capability of cross-domain recommendation content are improved.
Owner:CHONGQING WUXI COUNTY NINGHE DIGITAL TECHNOLOGY CO LTD

Personalized learning scheme recommendation method and system based on artificial intelligence

The invention discloses a personalized learning scheme recommendation method and system based on artificial intelligence, and relates to the technical field of intelligent recommendation, and the method comprises the steps: collecting a learning behavior track and a knowledge mastering progress, carrying out the normalization processing, and generating structural feature input; performing multi-dimensional feature mapping and weight training on the structured feature input by using a reinforcement learning model to generate a learning preference vector; matching the learning preference vector with the weighted feature interaction matrix, calculating an adaptive score, and generating a candidate resource set; and performing iterative fusion on the candidate resource set and the real-time interaction feedback vector to generate a feedback fusion adaptive score matrix, updating adaptive scores by adopting a dynamic adjustment method, forming an optimized resource sequence, converting the optimized resource sequence into a task execution path, and generating personalized learning scheme recommendation. According to the invention, the accuracy of learning resource matching and the timeliness of personalized recommendation are improved.
Owner:CHINA NAT INST OF STANDARDIZATION

Federal privacy protection sequence recommendation method based on knowledge increment collaboration

The invention discloses a federal privacy protection sequence recommendation method based on knowledge increment collaboration, and relates to the field of data privacy protection. The invention aims to solve the problems of privacy exposure and low recommendation accuracy of the existing federal privacy protection sequence recommendation method. The method comprises the following steps: acquiring historical interaction articles of a user, inputting the historical interaction articles of the user into an optimized client, sending a global embedding matrix to the optimized client by an optimized server, acquiring a score of each article in a candidate pool by the optimized client by utilizing the global embedding matrix, and storing the score of each article in the candidate pool in the candidate pool, and forming a recommendation list by the L articles with the highest scores, and outputting the recommendation list. According to the method, the preference vector and other high-entropy features of the user are always kept in the local of the client, so that a channel of leakage of sensitive information through a gradient path is fundamentally cut off, and privacy exposure of the user is avoided. The method is used for sequence recommendation.
Owner:JIAMUSI UNIVERSITY

Intelligent traffic scheduling optimization method and device, equipment and storage medium

The invention relates to the field of communication, and discloses an intelligent traffic scheduling optimization method, device and equipment and a storage medium, and the method is used for 5G network intelligent traffic scheduling optimization. The method comprises the following steps: receiving a service request, analyzing the service request to obtain a 5G standard service type, an application scene and a 5G network slice identifier, then obtaining an SLA parameter corresponding to the service request and a candidate link required by service transmission, and converting the SLA parameter into an SLA preference vector; acquiring global data of the candidate link, and predicting by using the network state prediction model to obtain a predicted network state of the candidate link; the SLA preference vector is used as optimization target guidance, the predicted network state is used as a constraint condition, and a global optimization routing strategy is calculated through a multi-target optimization algorithm; and generating a control message packet based on the global optimization routing strategy, issuing the control message packet to the network forwarding equipment, and adjusting parameters of the network state prediction model and the multi-objective optimization algorithm based on the actual performance data after execution.
Owner:FOSHAN FANTE NETWORK TECH CO LTD

Flexible job shop multi-target scheduling method and system based on preference driving

The invention belongs to the technical field of workshop production scheduling, and discloses a flexible job workshop multi-target scheduling method and system based on preference driving, and the method comprises the steps: defining a target function and a constraint condition based on obtained information, and constructing a workshop scheduling model; converting a workshop scheduling problem into a Markov decision problem, designing a reward function, and creating a preference pool; selecting a preference vector from the preference pool, and respectively inputting the preference vector and the system state into a strategy network and a value network for iterative training to obtain a trained strategy network and a trained value network; and obtaining current preferences for different dispatches and a current state of the system, inputting the current preferences and the current state of the system into the trained strategy network, obtaining action probability distribution in a given state, and selecting a dispatching action with the maximum probability to obtain a corresponding optimal dispatching scheme. According to the method, the requirements of tire enterprises in different situations are met, high flexibility is achieved, the nonlinear target utility function is designed, and a tire workshop scheduling scheme with higher quality can be found out easily.
Owner:SHANDONG UNIV +1

Object recommendation method and device, electronic equipment and readable storage medium

The invention relates to the technical field of object recommendation, and provides an object recommendation method and device, electronic equipment and a readable storage medium. The method comprises the steps that user side data and attribute data corresponding to a to-be-recommended object are processed through a large language model, and user preference data and extended data corresponding to the to-be-recommended object are obtained; respectively carrying out text coding processing on the user preference vector and the to-be-recommended object to obtain a user preference vector and an extension vector corresponding to the to-be-recommended object; respectively processing the user preference vector and the extension vector based on a gating mechanism to obtain a gating vector corresponding to the user preference vector and a gating vector corresponding to the extension vector; performing spatial alignment processing on the two gating vectors to obtain a target user preference vector and a target extension vector; determining a recommendation score corresponding to the object to be recommended according to the data and the vector; and based on the preset recommendation score threshold and the recommendation score corresponding to the to-be-recommended object, determining and sending the target object data, thereby improving the accuracy of the recommendation result.
Owner:SHENZHEN XUMI YUNTU SPACE TECH CO LTD

Ultra-dense heterogeneous network access method, apparatus and device, and storage medium

The invention discloses an ultra-dense heterogeneous network access method, device and equipment and a storage medium, and relates to the technical field of mobile communication, and the method comprises the steps: inputting a target service type and network parameters of a candidate network; calling a first reward value calculation model or a second reward value calculation model to calculate the reward value of each candidate network based on the network parameters; selecting the candidate network with the highest reward value as an optimal network, and accessing the user terminal to the optimal network; wherein the first reward value calculation model calculates a reward value through the following steps: calculating a target preference vector based on a target service type, and selecting a target utility function for each network parameter from a utility function set; calling a target utility function to calculate a utility value of each network parameter so as to construct a utility matrix; and calculating an inner product of the target preference vector and the utility matrix to obtain a reward value of each candidate network. The method can better adapt to complex requirements in an ultra-dense heterogeneous network, and provides high-quality network access in a high-dynamic and high-complexity network environment.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH

APP interface visual communication adaptive optimization method and system based on user satisfaction

The invention discloses an APP interface visual communication adaptive optimization method and system based on user satisfaction, and the method comprises the steps: constructing a visual element-satisfaction association prediction model, taking historical satisfaction score, operation feedback and scene feature data as a training basis, and carrying out the training through a gradient boosting tree algorithm; collecting real-time scene features and initial interaction data of a target user, and generating candidate visual element parameters and prediction scores; constructing an instant preference vector, and screening a to-be-verified visual scheme in combination with cosine similarity; a local gray level display scheme is adopted, and multi-modal feedback is collected; constructing an evaluation matrix, and calculating a real-time satisfaction comprehensive score by using an analytic hierarchy process; determining a scheme and incrementally updating the model if the standard is reached, and regenerating parameters if the standard is not reached; the system comprises six components such as a model iteration engine and a real-time data collector, and dynamic adaptation is achieved cooperatively. According to the method, user preferences and scenes can be accurately matched, the visual experience and the operation efficiency are improved, continuous optimization can be achieved through model iteration, and the method is suitable for various APPs needing personalized interfaces.
Owner:XIAMEN HUAXIA UNIV

Interpretable news recommendation method and device and storage medium

The invention relates to the technical field of user interaction, and discloses an interpretable news recommendation method and device. According to the method, the user preference vector is obtained based on comprehensive analysis of the attributes, the long-term behaviors and the short-term behaviors of the user, so that more reliable analysis can be given from the attributes and the behaviors of the user. The semantic features of the candidate news are subjected to semantic enhancement in combination with the preset knowledge base, so that higher semantic understanding depth is achieved. The vector similarity can provide a news recommendation basis from the perspective of feature analysis, the semantic association degree can provide a news recommendation basis from the perspective of semantic analysis, the deep semantic association between the user and the news can be captured through combination of the vector similarity and the semantic association degree, and the reliability of news recommendation is finally improved. The first matching information is matched features, the second matching information is matched text descriptions, and the first matching information and the second matching information are combined with each other, so that the news recommendation thought or reason can be displayed for the user, and the news recommendation method has interpretability.
Owner:HEFEI UNIV OF TECH

A government information recommendation method and device based on knowledge graph and multimodal fusion

The embodiment of the present application discloses a government information recommendation method and device that integrates knowledge graph and multimodality, belonging to the field of information recommendation technology, and solving the problem of low matching between recommendation results and needs when users obtain government information. The method includes generating a user preference vector based on the user's historical search behavior, performing a coarse-grained search on the government knowledge graph to obtain a candidate knowledge subgraph; fusing the candidate knowledge subgraph with the multimodal data uploaded by the user to obtain a multimodal semantic vector; performing multi-hop information aggregation processing on the multimodal semantic vector, and performing a fine-grained search based on the aggregated graph node vector and the user query vector; reordering the search results based on a reordering mechanism to determine the recommended government knowledge subgraph; performing visual question answering and visual common sense reasoning processing based on the multimodal data and the recommended government knowledge subgraph to obtain a multimodal reasoning result, and sending the multimodal reasoning result to the user as recommended content based on the user's needs.
Owner:SHANDONG BANNER INFORMATION CO LTD

Resource recommendation method and system based on large model

The invention provides a resource recommendation method and system based on a large model, and the method comprises the steps: S1, obtaining the historical behavior information and the current query information of a user, and converting the historical behavior information and the current query information of the user into a user preference vector and a user demand vector; s2, based on the user preference vector and the user demand vector, using a language large model to extract a keyword set vector; s3, extracting a candidate resource set from a resource library by using a vector similarity retrieval method according to the user preference vector, the keyword set vector and the user demand vector; s4, reordering the candidate resource set by adopting a bootstrap strategy to obtain a candidate resource sequence; and S5, updating the user preference vector according to the first N items of the candidate resource sequence, then repeating the steps S2-S5 until the maximum number of iterations, and then recommending the first N items of resources. According to the method, the problems of poor generalization ability and insufficient adaptation in the prior art are solved.
Owner:CHONGQING UNIV

Household service supply and demand intelligent docking management method and system based on big data analysis

The invention provides a household service supply and demand intelligent docking management method and system based on big data analysis. The method comprises the following steps: collecting original data; processing and splicing the family structure information and the historical order information to obtain a comprehensive feature vector, and inputting the comprehensive feature vector into a multi-layer perceptron to obtain a life cycle stage vector; projecting the life cycle stage vector to a space consistent with a preference vector to obtain a stage service mask; carrying out dimension-by-dimension multiplication operation on the stage service mask, the preference vector and the attention weight to obtain a preference fusion vector; constructing a first service capability vector for each service staff, and reconstructing the preference fusion vector and the service capability vector to obtain a second service capability vector; and calculating an average value to obtain a comprehensive score, sorting the comprehensive scores of all candidate service personnel according to a score descending order, and finally selecting the candidate service personnel with the highest comprehensive score and meeting a threshold condition as an order sending object.
Owner:GUANGZHOU NO 1 HOUSEKEEPING TECH CO LTD