1997 results about "Recommender system" patented technology

The invention relates to a multi-modal dynamic optimization educational resource recommendation system and method, and the system comprises the following modules: a multi-modal data collection module integrates video behaviors, answer tracks, physiological signals and other data through edge calculation, and constructs a learning feature map; the student portrait module adopts an LSTM-Attention network in combination with a graph neural network to dynamically model knowledge mastery and learning styles; the resource matching engine realizes multi-objective optimization of knowledge gain, cognitive load and interest matching based on reinforcement learning and knowledge graph analysis; the tag adaptive module dynamically adjusts resource weights through causal inference and comparative learning, the personalized recommendation module generates a dynamic learning path and pushes adaptive resources based on student portraits and real-time behavior data, and the learning progress tracking module monitors a learning state in real time and feeds back the learning state to the resource matching engine to optimize a recommendation strategy in a closed loop mode. The technical defects that resource recommendation of a traditional education platform is rigid and personalized adaptation is lacked are overcome.

The invention relates to the technical field of artificial intelligence and natural language processing, in particular to a dynamic question and answer matching method and system based on context awareness. The method comprises the following steps: acquiring history of multiple rounds of dialogues and user background information, and generating a semantic understanding model of a current dialogue; based on the semantic understanding model and the current user input, matching the most relevant answer from the question and answer library, and dynamically adjusting the matching strategy; acquiring real-time feedback data of the user, updating a personalized recommendation algorithm based on the interest change of the user, and generating a personalized answer recommendation list; dynamically updating the content of the question and answer library according to the personalized recommendation list and the user behavior data; and inputting the user feedback and the updated question and answer library data into a personalized recommendation system to generate final personalized answer recommendation. Through context sensing and real-time dynamic adjustment, the matching precision of the question answering system is remarkably improved, the interaction experience of the user is improved, and the adaptability and flexibility of the system are enhanced.

The invention relates to the technical field of data processing, and discloses a cross-border e-commerce commodity recommendation system and method based on multi-source data fusion. The system comprises an acquisition module for performing data acquisition to obtain a cross-border unified data warehouse and federal learning cooperation data; the classification module performs text classification processing to obtain a user preference analysis result and an interpretable attention mark; a quantization module carries out quantization processing to obtain a cross-border selection feature matrix; the fusion module carries out weighted fusion processing to obtain a basic comprehensive score and a weight convergence detection result; the evaluation module performs risk evaluation processing to obtain risk probability distribution and cross-border compliance evaluation results; and the sorting module carries out real-time processing through lightweight preprocessing and a flow-type calculation pipeline to obtain a comprehensive score sorting list of cross-border selected products. The problem that a traditional cross-border e-commerce product selection method cannot effectively integrate multi-source heterogeneous data and cannot analyze user feedback text semantic information is solved.

The invention provides an intelligent post matching and employee growth path planning system and method and a storage medium. The system comprises a data acquisition and processing module, an employee portrait construction module, an intelligent post matching module and an occupational path planning module. The data acquisition and processing module collects employee performance data, education background, work experience and other information from internal and external data sources. The employee portrait construction module constructs a comprehensive portrait of each employee by using a clustering analysis and factor analysis technology; the intelligent post matching module performs intelligent matching by applying a recommendation system algorithm according to post demands and employee portraits, and finds the posts most suitable for the current capabilities and development desires of the employees; the occupational path planning module analyzes the industry development trend and future skill requirements based on the prediction model, and provides personalized occupational development paths and training suggestions for employees. According to the invention, historical performance evaluation and industry trend analysis of employees can be integrated, and comprehensive post matching and occupational planning solutions are provided.

The invention discloses a cockpit active recommendation system and method based on a knowledge graph and semantic reasoning, and relates to the technical field of intelligent cockpits. The system receives natural language voice input of a user, executes voice recognition and semantic analysis, extracts user intention, keywords and slot entities, generates structured semantic information, constructs or calls a knowledge graph structure with semantic relation edges in combination with environment context information, and obtains the knowledge graph structure with the semantic relation edges. Semantic path reasoning is carried out based on the path dependence weight and the semantic similarity, a semantic edge label guided graph attention mechanism is introduced to calculate a path consistency score, a candidate recommendation set is generated, the semantic fitting degree and the path score are fused to sort and output recommendation content, and the graph edge weight and the user portrait are updated based on user feedback. According to the method, semantic understanding precision, recommendation path interpretability and system adaptive capacity are improved, and the method is suitable for personalized voice recommendation, man-machine interaction and scene linkage control tasks in an intelligent cockpit.

The invention provides a multi-modal intelligent question-answering and recommendation system supporting emotional speech output, and relates to the technical field of visual question-answering, and the system specifically comprises a multi-modal question-answering module, a multi-modal recommendation module, a speech recognition module, and a speech synthesis module. Wherein the multi-mode question answering module converts an image input by a user into a natural language form, and final question answering is completed in combination with a comet knowledge base COMET; the voice recognition module is used for recognizing voice data input into the multi-mode intelligent question answering and recommending system and processing the voice data into a text form; the multi-modal recommendation module identifies whether modal missing exists in input data or not, generates representation of the missing modal, obtains vector representation of the user and the article through a graph convolutional neural network and learning according to an interaction matrix of the user and the article, carries out reliability calculation, and finally sends a multi-modal recommendation result to the user and the article. Sending back to the multi-mode question and answer module; and the voice synthesis module outputs the voice to the user.

The invention discloses a method for an AI model maternal and infant assistant from question answering to accurate recommendation, belongs to the technical field of artificial intelligence, and comprises the steps of user demand input and analysis, user portrait construction and dynamic updating, commodity recommendation and optimization, feedback optimization and strategy adjustment. According to the method and the system, the change of user demands and interests can be flexibly coped with, the recommendation accuracy and the user satisfaction degree can be improved, accurate understanding and processing of complex demands are ensured, the real-time performance and accuracy of user portraits are ensured, the change of the user demands and interests can be flexibly coped with, and more accurate and personalized recommendation is realized. The recommendation accuracy and the user satisfaction are improved, and the user can understand what a certain commodity is recommended, so that the trust of the user to the recommendation system is enhanced.

The invention discloses an intelligent bidding and tendering information identification method, which relates to the technical field of engineering management, and comprises the following steps: standardizing and preprocessing a bidding and tendering information document format; constructing a natural language processing model special for the bidding and tendering field; training a multi-level information extraction model based on deep learning; carrying out cross-document information integration and correlation analysis; performing anomaly detection and verification based on rules; semantic understanding and sentiment analysis; automatic subject matter description and technical specification extraction; a real-time dynamic monitoring and information updating mechanism; the invention discloses a graph-based decision support and recommendation system. According to the intelligent bidding and tendering information identification method, efficient and intelligent identification of bidding and tendering information is realized by constructing a natural language processing model specially aiming at the field of bidding and tendering. The bidirectional coding capability of BERT and the sequence modeling capability of LTM are combined, and a hierarchical attention mechanism is introduced, so that the model can accurately identify various key information in bidding and tendering documents.

The invention discloses a personalized recommendation system based on semantic analysis, and relates to the technical field of personalized recommendation systems.The personalized recommendation system comprises a data acquisition module, a dynamic situational semantic modeling module and a recommendation engine module, the data acquisition module transmits acquired user behavior data and situational data to the dynamic situational semantic modeling module, and the dynamic situational semantic modeling module transmits the acquired user behavior data and situational data to the recommendation engine module; the dynamic situational semantic modeling module extracts sequence features of user behavior data through a behavior context analyzer, generates context embedding through a situational semantic embedding network, completes cross-modal semantic alignment of multi-modal data through a multi-modal fusion layer, and generates multi-level semantic embedding features. According to the method, the dynamic situational semantic modeling module is designed, the semantic alignment function of the situation and the behavior is achieved, the problem that a traditional recommendation system is insufficient in situation data utilization is solved, the adaptability of the recommendation result to the dynamic situation is enhanced, and the method is suitable for dynamically changing user demand scenes.

The invention discloses an educational resource image intelligent recommendation and multi-scale matching system and method based on machine learning, and relates to the technical field of intelligent education, a permeability evaluation model is constructed by collecting interactive behavior data of students and educational resource images to quantify cognitive stability and knowledge mastery parameters; synchronously performing multi-scale analysis on the image to generate a visual feature, a knowledge association feature and a cognitive guide feature; and determining an optimal recommendation level based on dynamic granularity selection processing, generating an enhanced image with a permeability feedback mark, and interactively generating learning evaluation data through the enhanced image. According to the method, cognitive dynamic evaluation and multi-scale feature matching are fused, so that the technical bottleneck of a traditional recommendation system on image granularity selection and cognitive adaptation is solved, and the educational resource recommendation accuracy and learning efficiency are remarkably improved.

The invention belongs to the technical field of intelligent medical treatment, and particularly relates to a traditional Chinese medicine tongue diagnosis and prescription recommendation system based on multi-modal feature fusion. The system comprises a data preprocessing module used for preprocessing tongue picture image data and text data; the feature extraction module is used for extracting image features and text features from the preprocessed tongue picture image data and text data; the multi-modal feature fusion module is used for effectively fusing the extracted image features and text features by adopting a self-attention mechanism as a core fusion strategy to generate joint features; the multi-task learning module is used for completing parallel learning of a plurality of tasks on the basis of the representation of the joint features; and the model training and optimization module is used for designing a training method, a loss function and an optimization algorithm, so that the targets of disease name judgment, symptom judgment and prescription conditioning recommendation are completed after the multi-task neural network model processes the joint features.

The invention relates to the technical field of live broadcast, and discloses a live broadcast scene perception recommendation system, which is characterized in that a data acquisition module is used for acquiring multi-source data in a live broadcast process in real time; the scene analysis module is connected with the data acquisition module and is used for receiving and integrating the acquired data and analyzing the live broadcast scene; the user portrait construction module is used for tracking a behavior track of a user on a live broadcast platform in real time, and constructing a dynamic user portrait in combination with historical watching data, a collection record, a consumption record and an interactive behavior in current live broadcast; a recommendation strategy generation module generates a personalized recommendation strategy according to the result of the scene analysis module and the user portrait constructed by the user portrait construction module; the recommendation content pushing module pushes the recommendation content generated by the recommendation strategy generation module to the user; according to the method, personalized and precise recommendation is realized, and the watching experience and participation degree of the user are effectively improved.

The invention relates to the field of knowledge graph completion, provides a knowledge graph completion method based on multi-modal visual angle perception and a deep neural network, and aims to solve the problems of weak multi-modal information expression ability, rough fusion mode and insufficient structural reasoning ability in the prior art. According to the method, structure information, text description and visual image information of an entity in a knowledge graph are obtained, structure, text and image modal input is constructed respectively, and a graph neural network, a pre-training language model and a visual encoder are adopted for feature coding; weighted fusion and semantic enhancement of multi-modal features are realized through a visual angle fusion mechanism and hierarchical attention processing; cross-modal contrast learning is introduced to improve modal consistency; and carrying out triple reasoning by using a uniform Transform encoder, and verifying a completion result by scores. According to the method, multi-modal semantics are effectively integrated, the entity representation capability and the triple prediction accuracy are improved, the model robustness is enhanced, and the method is suitable for application scenes such as intelligent question answering and recommendation systems and has remarkable practical value and popularization prospects.

The invention discloses a dialogue recommendation method based on combination of a multi-modal semantic graph and prompt learning, which comprises the following steps of: firstly, coding entities in dialogue history based on a knowledge graph, carrying out feature coding on a product text and an image, and then, constructing a plurality of semantic graphs with different modals, including a text semantic graph, an image semantic graph and a collaborative semantic graph, on the basis, a multi-modal semantic graph is innovatively combined with prompt learning, high-dimensional semantic association is fully mined by using a large language model, multi-modal features and structured semantic relationships between products are effectively modeled, and the multi-modal semantic graph is embedded into the multi-modal semantic graph embedded # imgabs0 # with multiple modal semantic relationships fused therein, so that the multi-modal semantic graph embedded # imgabs0 # and the multi-modal semantic relationships between the products are effectively modeled, and the multi-modal semantic graph embedded # imgabs0 # and the multi-modal semantic relationships between the products are obtained. The user preference is dynamically captured in the multi-round dialogue recommendation scene to comprehensively understand the user demand and generate a more accurate recommendation result, so that the accuracy in the recommendation task is remarkably improved, meanwhile, more natural content conforming to the context can be generated in the dialogue task, and the dialogue generation performance of the dialogue recommendation system is improved.

The invention discloses a personalized learning resource recommendation method and system based on multi-agent collaboration and a dynamic knowledge graph, and the method comprises the steps: constructing the dynamic knowledge graph, enabling nodes to be associated with teaching resources (videos, test questions, teaching plans, PPT and the like), and enabling edges to represent the logic relation between the resources; collaborative decision is made through four layers of agents: a target determination agent generates a learning target based on student historical learning data and a graph node state; the path planning agent plans a learning path in combination with the target and the learner model; the resource screening agent matches personalized resources from the path nodes; the user portrait intelligent agent updates the learner model in real time; and finally, generating a dynamic recommendation result and feeding back the optimized knowledge graph. Through multi-agent hierarchical collaboration and dynamic interaction with the knowledge graph, the problems of cold start, incomplete resource coverage and path stiffness of a traditional recommendation system are solved, and precise and adaptive learning resource recommendation is realized.

The invention provides a self-adaptive recommendation method based on dynamic strategy optimization, and aims to solve the problems of memory bank update lag, retrieval strategy lag and insufficient long-tail article coverage of an existing recommendation system. A time sequence behavior coding module, a dynamic memory storage bank, a strategy control module and a heterogeneous fusion module are designed; and real-time optimized personalized recommendation is realized. Specifically, a time sequence behavior coding module is used for generating a user state vector with time decay, a dynamic memory storage library automatically updates historical records based on a mixed scoring mechanism, and a strategy control module outputs a learnable retrieval number, a weight coefficient and a fusion parameter. The heterogeneous fusion module realizes cross-channel feature enhancement through a dual-channel attention mechanism; according to the method, the problems of preference drift and long-tail recommendation are effectively solved, meanwhile, the online updating efficiency is improved, and more accurate and diversified recommendation results are provided for users.

The invention discloses a label-based user portrait self-adaptive updating method, a medium and equipment, and solves the problems of poor data timeliness and lagging rule updating in a traditional offline batch processing mode through a collaborative mechanism of real-time stream processing and historical batch processing. A dynamic weight adjustment strategy is adopted, real-time user tags generated by real-time behavior flow data and batch user tags generated by historical behavior batch data analysis are subjected to aging weighted fusion, and dynamic changes of user behavior modes are effectively captured; through feedback behavior data of the user and a closed-loop iteration mechanism of the rule base, self-adaptive evolution of the label rule is realized, and the accuracy and the response speed of a recommendation system are remarkably improved.

Systems and methods for providing item recommendations based on dual models with different levels of product data granularity are disclosed. In some embodiments, a disclosed method includes: receiving, from a computing device, a recommendation request for recommending items to a customer; determining, based on the recommendation request, at least one anchor item to be displayed to the customer; obtaining a first machine learning model trained based on a first product data granularity; obtaining a second machine learning model trained based on a second product data granularity; generating, using the first machine learning model and the second machine learning model, a ranked list of recommended items based on the at least one anchor item; and transmitting to the computing device the ranked list of recommended items to be displayed to the customer with the at least one anchor item.

The invention discloses an intelligent personalized learning path recommendation system, and relates to the technical field of learning systems, and the system comprises a multi-source data collection module which is used for synchronizing behavior data of students in a cross-platform learning scene in real time; the cognitive feature analysis engine comprises a style recognition sub-engine and a demand prediction sub-engine to predict the potential learning demand intensity of students for unmastered knowledge points and generate a priority list comprising knowledge gaps; the personalized path generator generates a three-dimensional path plan; the proportion of guided questioning, example demonstration and autonomous exploration is automatically configured according to knowledge difficulty; the dynamic self-adaptive adjustment unit is used for designing a reward function including short-term progress speed and long-term ability growth potential by taking real-time performance of students as a state space and taking path adjustment action as a decision space based on a reinforcement learning framework; and a double-loop feedback mechanism is realized. According to the method, the dimension limitation of traditional learning analysis is broken through, the difficulty of stiffness of a static course template is broken through, and meanwhile, the semantic gap of subject cognition is broken through.

The invention provides a short video recommendation method and system based on a large language model, a storage medium and electronic equipment, and relates to the field of machine learning. According to the method, video content is integrated to generate a large language model, an interest description large language model and a circle breaking strategy description large language model, and a recommendation system architecture for assisting a user in circle breaking is designed. The method comprises the following steps: firstly, accurately identifying multi-dimensional features of a video and user interests and preferences, and dividing different interesting communities; secondly, executing a video recommendation strategy of a double-track system, and respectively obtaining short video recommendation lists based on interests and auxiliary circle breaking; and then, fusing the two short video recommendation lists, deploying the proportion of the broken circle short videos in recommendation according to the broken circle willingness of the target user and the decision score of the manager, generating a final short video recommendation list, and exploring the short video content in which the short videos are potentially interested. Furthermore, a large language model is generated based on the title, the title of the broken-circle short video is designed, and the click desire and watching interest of the target user are stimulated.

The invention discloses a recommendation method for enhancing semantics and interest perception by using a large language model. The method comprises the following steps: firstly, performing semantic modeling on unstructured text information such as user comments, article description and the like by utilizing the powerful capability of a large language model in semantic comprehension and user preference modeling aspects, so as to improve the deep perception capability of a recommendation system on user interests and article semantic attributes; then, through a semantic feature alignment and discretization strategy, the problem that continuous semantic representation generated by a large language model is incompatible with features of a traditional recommendation system in the aspect of an expression structure is solved; finally, unified modeling of semantic information and traditional recommendation signals is achieved through a recommendation integration mechanism, and recommendation performance and model interpretability are improved.

The invention relates to the field of recommendation systems, and particularly discloses a personalized recommendation method based on multi-modal behavior sequence modeling, which comprises the following steps of: acquiring multi-modal behavior data such as user text, image, time and place, preprocessing, and realizing dynamic fusion of the data by utilizing a multi-modal self-attention mechanism (MMSA) to obtain a multi-modal behavior sequence model; and the interest evolution of the user is accurately captured. An independent RNN module is adopted to model long-term and short-term interests of a user, and the long-term and short-term interests are combined through a self-learning weight coefficient, so that the change of the user interests is reflected more accurately. In addition, by introducing an online learning and incremental learning mechanism, model parameters are dynamically adjusted according to real-time feedback of the user, and it is ensured that a recommendation result can respond to user interest changes in time. According to the method, the defects of an existing recommendation system in the aspects of data fusion, time sequence modeling and real-time adaptability are effectively overcome, recommendation individuation and accuracy are improved, and the real-time updating capacity and scene adaptability of the system are enhanced.

The invention discloses a diagnosis accompanying service-oriented dynamic user portrait generation and personalized recommendation method, particularly relates to the technical field of medical portrait personalized recommendation, and is used for solving the problem of insufficient user demand dynamic adaptability caused by recommendation homogenization and portrait update stiffness due to excessive dependence on historical behavior data in an existing recommendation system. A dynamically evolved user portrait is constructed by fusing time sequence characteristics of a user behavior sequence, time-space fluctuation characteristics of physiological indexes and spatial semantics of a doctor seeing environment, and the limitation that a traditional recommendation system is disjointed from medical logic in a medical scene is broken through through closed-loop optimization of a disease-service mapping rule and real-time feedback, so that the medical scene recommendation system is more accurate. Co-evolution of demand perception and resource scheduling is realized; the recommendation strategy based on dynamic weight fusion and diversity threshold screening gives consideration to accuracy of service matching and exploratory performance of potential requirements, and recommendation reliability and service response efficiency in a complex medical scene are effectively improved.

The invention provides a content recommendation method and system based on multi-modal data fusion, and relates to the technical field of content recommendation, and the method comprises the steps: obtaining multi-modal data of a user, and integrating the multi-modal data through a deep learning model to obtain a multi-dimensional user portrait; a comparative learning module is adopted to extract potential interests from historical data of the user; the preference of the user in the aspect of recessive behaviors is learned through a contrast learning model, a recessive interest model is established to obtain comprehensive interest representation, feedback and behavior data of the user are obtained in real time, and a reinforcement learning algorithm is used for adjusting a recommendation strategy in real time to obtain an optimized recommendation strategy; and according to the optimized recommendation strategy, using a user feedback mechanism to collect feedback data after the user participates in real time to train and optimize a recommendation system so as to obtain a final content recommendation system. The invention provides a multi-modal data fusion content recommendation method and system, and solves the technical problem of data singleness.

An AI-powered personalized travel recommendation system for tourists, consisting of: a user interface configured to receive user input regarding travel preferences, interests, budget constraints, and desired length of stay; a data processing unit comprising one or more machine learning algorithms configured to analyze user data, including but not limited to past travel behavior, demographic information, and real-time location data, to generate personalized travel recommendations; a recommendation engine that is operationally connected to the data processing unit and configured to synthesize and aggregate various data sources, including social media activity, online reviews, weather forecasts and local events, to compile a list of tailored destinations, activities, accommodations and dining options; an adaptive feedback loop that changes recommendations based on user interactions and feedback, with the feedback being used to improve the machine learning algorithms over time; a travel itinerary generator that uses the results of the recommendation engine to create an optimized itinerary, making it easier to discover popular tourist attractions, hidden gems, and off-the-beaten-path experiences; and a sharing module that allows users to share their personalized itineraries and ratings with other users of the system, thus promoting a community-oriented approach to travel planning.

The invention provides an intelligent service recommendation method based on multi-dimensional scene perception and dynamic portrait modeling. The intelligent service recommendation method comprises the steps that 1, distributed edge computing nodes are deployed, space-time tetrad data operated by a user are collected in real time, user behaviors and labels are stored, and a high-dimensional recommendation database is built; 2, constructing a dynamic portrait engine, and constructing a user long-term behavior pattern library; 3, deploying a real-time streaming and offline double-engine architecture, fusing real-time scene matching and offline portrait prediction, and performing personalized function and user deep demand analysis; step 4, for new users, synchronously calling geofences to obtain regional hot services, and realizing cold start optimization based on meta reinforcement learning in parallel; and 5, establishing an intelligent recommendation closed loop associated with weather characteristics. According to the method, multi-dimensional features such as space-time tetrad data, user tag information and dynamic interest weights are fully utilized, and the real-time performance, interpretability and generalization ability of a recommendation system can be effectively improved.

The invention belongs to the technical field of vehicle-mounted human-computer interaction, and particularly relates to a vehicle-mounted music recommendation system based on context awareness, which covers the technologies of computer vision, recommendation systems, human-computer interaction and the like. The whole system is divided into two main parts: the first part is a context information collection module, and the module realizes real-time recognition of the emotion of a driver by collecting facial images and voice information of the driver; and the second part is a feedback module used for processing interaction between the driver and different emotion analysis results, including mapping rule reasoning and music recommendation. The system generates a personalized music recommendation list by analyzing the facial expression of the driver and the emotional characteristics extracted from the voice information, so as to reduce the music selection burden of the driver and prevent the occurrence of extreme emotions, thereby having important significance for guaranteeing the personal safety of the driver and the road traffic safety.

The invention provides a recommendation strategy generation method based on big language model enhancement and related equipment. The method comprises the steps of obtaining a recommendation task; inputting the recommendation task into an intelligent agent, and obtaining a recommendation strategy output by the intelligent agent; wherein the intelligent agent is obtained by training based on a sample recommendation task and a large language model, and the large language model is used for predicting user behaviors based on the sample recommendation task. According to the method, the big language model is combined with the reinforcement learning agent, so that the problem that an accurate recommendation strategy is difficult to quickly provide by a traditional method is effectively solved, and the efficiency and the adaptability of a recommendation system are improved while the accuracy and the individuation degree of the recommendation strategy are improved.

A method for training a graph neural network based recommendation system. The method includes receiving and processing a dataset to generate graph representation data. The dataset includes user data associated with users, item data associated with items, and user-item interaction data associated with interactions between users and items. Some items have less user-item interactions than some other items. The graph representation data includes data associated with user nodes, data associated with item nodes, and data associated with user-item interaction edges. Some item nodes have less user-item interaction edges than some other item nodes. The method further includes processing the graph representation data to obtain modified graph representation data, which can facilitate learning or determining of representations of at least some of the item nodes with less user-item interactions. The method further includes training the graph neural network based recommendation system based at least partly on the modified graph representation data.

A recommendation system identifies resale goods corresponding to retail goods being viewed by a user on a retail goods website. Retail goods metadata and images are extracted from the retail goods website using heuristics and LLM-based methods. The extracted retail goods data undergoes ML model-based product category classification, intelligent image cropping, and color detection. Vector embeddings are generated for images and text using ML models and compared to resale goods vector embeddings stored in a vector database. Multiple result sets are retrieved, fused, and re-ranked using LLM-based and preference-aware re-ranking. A data pipeline continuously loads, cleans, and processes resale goods inventory from resale goods websites.