Patent ID: 11861677
Assignee: MAPLEBEAR INC.
Field: IT methods for management (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method comprising:
receiving, by an online concierge system, a search query from a user;
retrieving, by the online concierge system, item embeddings for promoted items, wherein the item embeddings are learned using a machine learning embedding model;
calculating, by the online concierge system, a Hadamard product of a search query embedding for the search query and a user embedding for the user, wherein the user embedding is learned using the machine learning embedding model;
approximating, by the online concierge system, nearest neighbors from the Hadamard product to the item embeddings for the promoted items;
retrieving, by the online concierge system and based on the approximating, a set of candidate items;
ranking, by the online concierge system, the set of candidate items using a machine learning click through rate model; and
transmitting, by the online concierge system and based on the ranking, a subset of the set of candidate items to a user device for display to the user.