RECOMMENDATION SYSTEM USING USER EMBEDDINGS HAVING STABLE LONG-TERM COMPONENT AND DYNAMIC SHORT-TERM SESSION COMPONENT

    公开(公告)号:US20250005644A1

    公开(公告)日:2025-01-02

    申请号:US18217324

    申请日:2023-06-30

    Abstract: An online system accesses a two-tower model trained to identify candidate items for presentation to users, in which the model includes an item tower trained to compute item embeddings and a user tower trained to compute user embeddings. The user tower includes a long-term sub-tower trained to compute long-term embeddings for users and a short-term sub-tower trained to compute short-term embeddings for users. The model is trained based on item data associated with items, user data associated with users, and session data associated with user sessions. The system uses the item tower to compute an item embedding for each of multiple candidate items. The system also uses the long-term sub-tower to compute a long-term embedding for a user. The system then receives session data associated with a current session of the user and uses the short-term sub-tower to compute a short-term embedding for the user based on this session data.

    MACHINE-LEARNED MODEL FOR PERSONALIZING SERVICE OPTIONS IN AN ONLINE CONCIERGE SYSTEM USING LOCATION FEATURES

    公开(公告)号:US20240428309A1

    公开(公告)日:2024-12-26

    申请号:US18214150

    申请日:2023-06-26

    Abstract: Based on logged information about prior events, an online concierge system generates a set of location metrics that quantify properties of locations such as retailers at which items may be acquired, and residences to which the items are brought. The location metrics can be used for a variety of purposes to aid customers or other users of the online concierge system, such as providing the users with more information (e.g., likely delivery delays) or alternative options (e.g., pricing options), or emphasizing options that the location metrics indicate would be of particular value to the user. To determine whether to emphasize a particular option, the online concierge system applies a machine-learned model that predicts whether emphasizing that option would effect a positive change in user behavior, relative to not emphasizing it.

    COMPUTING ITEM FINDABILITY THROUGH A FINDABILITY MACHINE-LEARNING MODEL

    公开(公告)号:US20240428125A1

    公开(公告)日:2024-12-26

    申请号:US18339203

    申请日:2023-06-21

    Abstract: An online concierge system uses a findability machine-learning model to predict the findability of items within a physical area. The findability model is a machine-learning model that is trained to compute findability scores, which are scores that represent the ease or difficulty of finding items within a physical area. The findability model computes findability scores for items based on an item map describing the locations of items within a physical area. The findability model is trained based on data describing pickers that collect items to service orders for the online concierge system. The online concierge system aggregates this information across a set of pickers to generate training examples to train the findability model. These training examples include item data for an item, an item map data describing an item map for the physical area, and a label that indicates a findability score for that item/item map pair.

    Using Language Model To Automatically Generate List Of Items At An Online System Based on a Constraint

    公开(公告)号:US20240427808A1

    公开(公告)日:2024-12-26

    申请号:US18214275

    申请日:2023-06-26

    Abstract: Embodiments relate to using a large language model (LLM) to generate a list of items at an online system with a user defined constraint. The online system receives a query that includes at least one constraint. The online system generates a prompt for input into the LLM, based at least in part on the query. The online system requests the LLM to generate, based on the prompt, a set of constraints for a set of item types. The online system generates a list of candidate items by searching through a set of items stored in one or more non-transitory computer-readable media using the set of constraints for the set of item types. The online system causes a device of the user to display a user interface with the list of items for inclusion into a cart, the list of items obtained from the list of candidate items.

    VALIDATING CODE OWNERSHIP OF SOFTWARE COMPONENTS IN A SOFTWARE DEVELOPMENT SYSTEM

    公开(公告)号:US20240427559A1

    公开(公告)日:2024-12-26

    申请号:US18213773

    申请日:2023-06-23

    Abstract: A system validates code ownership of software components identified in a build process. The system receives a pull request identifying a set of software components. The system analyzes code ownership of each software component using machine learning. The system provides features describing the software components as input to a machine learning model. The system determines based on the output of the machine learning model, whether the code ownership of the software component can be determined accurately. If the system determines that a software component identified by the pull request cannot be determined with high accuracy, the system may block the pull request or send a message indicating that the code ownership of a software component cannot be determined accurately.

    ORDER-SPECIFIC EXPANSION OF AN AREA ENCOMPASSING PICKERS AVAILABLE FOR ACCEPTING ORDERS PLACED WITH AN ONLINE SYSTEM

    公开(公告)号:US20240420051A1

    公开(公告)日:2024-12-19

    申请号:US18211124

    申请日:2023-06-16

    Abstract: Embodiments relate to order specific expansion of an area that encompasses pickers available for accepting an order placed with an online system. The online system accesses a computer model trained to predict an attractiveness metric for the order and applies the computer model to predict a value of the attractiveness metric for a first order. The online system classifies the first order into a first set or a second set, based on the value of the attractiveness metric and a threshold. Based on the classification, the online system expands over time a size of an area that encompasses a set of pickers available for accepting the first order. The online system causes a device of each picker in the set of available pickers located within the area of the expanded size to display an availability of the first order for acceptance by each picker in the set of available pickers.

    User Interface for Obtaining Picker Intent Signals for Training Machine Learning Models

    公开(公告)号:US20240386471A1

    公开(公告)日:2024-11-21

    申请号:US18199938

    申请日:2023-05-20

    Abstract: A concierge system sends batches of orders to pickers that they can review and accept in a batch list on a client device. Each batch in the batch list is presented with a hide option that enables the picker to hide a batch that they do not intend to accept. In response to receiving a hide signal, the system extracts features associated with the batch and stores those features with a negative indication of the picker towards the batch. The hide signal provides the system with a higher quality signal indicating the picker's negative intent regarding an order, as compared to simply ignoring the order in favor of fulfilling another order. This higher quality signal is then used to train models to better predict events related to the pickers' acceptance of orders, such as for ranking orders for pickers or for predicting fulfillment times.

    MACHINE LEARNING MODEL FOR DYNAMICALLY BOOSTING ORDER DELIVERY TIME

    公开(公告)号:US20240249238A1

    公开(公告)日:2024-07-25

    申请号:US18158368

    申请日:2023-01-23

    CPC classification number: G06Q10/087 G06N5/022

    Abstract: A method or a system for using machine learning to dynamically boost order delivery time. The system receives an order associated with a delivery time and a compensation value. The system applies a machine-learning model to an order to predict an amount of lateness time that an order will be fulfilled late. The system then determines a lateness value based in part on the predicted amount of lateness time. The lateness value indicates a penalty caused by the predicted amount of lateness time. For each of a plurality of proposed boost amounts for the compensation value, the system determines an uplift, indicating a reduction of the lateness value caused by the boost amount. The system then selects a boost amount from the plurality of boost amounts based in part on the determined uplifts, causing the order to be accepted sooner to thereby boost order delivery time.

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