All photos and presentations from Arm's SC'18 events will soon be available via Arm's website. In the meantime, and to help make the materials a little easier to find, I've centralized all public photos and presentations here:
docker pull armltd/sve-hackathon
The official channels for these materials are:
Please feel free to share the DropBox links above, but note that they are not hosted by Arm and the official "arm.com" pages should be preferred.