公开(公告)号：US20220284491A1

公开(公告)日：2022-09-08

申请号：US17191134

申请日：2021-03-03

Applicant: Maplebear, Inc.(dba Instacart)

Inventor： Chao Qu

IPC: G06Q30/06 ,  G06F16/953 ,  G06Q10/08 ,  G06Q30/02

Abstract: An online concierge system maintains an item catalog maintaining a hierarchical taxonomy of the items. Using the hierarchical taxonomy, the online concierge system selects a cohort of items. For the cohort, the online concierge system selects an attribute and generates a distribution of values of the attribute across items in the cohort. From the distribution, the online concierge system identifies one or more items having values for the attributes that are outliers. The online concierge system may provide the identified one or more items to users for manual review to identify possible errors in the item catalog. The data regarding whether manual review identified errors is saved by the online converge system for later use as labels to train a machine learning model for detecting errors.