1. Number of digital buyers worldwide from 2014 to 2021,2020
2. Retail e-commerce sales worldwide from 2014 to 2024,2021
3. E-commerce share of total global retail sales from 2015 to 2024,2021
4. Learning a hierarchical embedding model for personalized product search;Ai,2017
5. Multi-modal preference modeling for product search;Guo,2018