Sean Bell

Sean Bell joined Facebook in January 2019 as a research scientist to work on computer vision for commerce, product recognition, and visual search. His broader research interests include metric learning, object detection, and fine-grained recognition. Sean completed his PhD in Computer Science from Cornell University, and most recently co-founded GrokStyle: a startup providing computer vision as a service to retailers.

Sean's Publications

May 26, 2020

RESEARCH

ML APPLICATIONS

GrokNet: Unified Computer Vision Model Trunk and Embeddings For Commerce

In this paper, we present GrokNet, a deployed image recognition system for commerce applications. GrokNet leverages a multi-task learning approach to train a single computer vision trunk. We achieve a 2.1x improvement in exact product match accuracy when compared to the previous state-of-the-art Facebook product recognition system. We achieve this…

Sean Bell, Yiqun Liu, Sami Alsheikh, Yina Tang, Ed Pizzi, M. Henning, Karun Singh, Omkar Parkhi, Fedor Borisyuk

May 26, 2020