Which organization published a deep learning project focused on supervised training for image recognition in May 2018?

The correct response indicates that Facebook published a significant deep learning project centered on supervised training for image recognition in May 2018. This project, known as "Detectron," served as an important framework for object detection tasks. Detectron is notable for providing researchers and developers with robust tools to train and deploy deep learning models in image recognition scenarios.

Facebook's efforts in this project demonstrate its commitment to advancing computer vision technologies, and it has contributed extensively to the open-source community by sharing this framework. This strategic move emphasized the role of Facebook in deep learning research and innovation during that period.

While other organizations mentioned are also leaders in machine learning and artificial intelligence, Detectron was specifically linked to Facebook's initiatives, making this answer the most accurate one.