The research blog of Yahoo Labs, announcing open source tools, datasets, and papers in machine learning and search.
HN links it for dataset and tool announcements, such as the 100M-image Flickr Creative Commons dataset and the Anthelion open source crawler.
This is old news but we put together a 100M item dataset from Flickr as well, all Creative Commons licensed, including lots of metadata from users as well as some pre-computed features. It's called the YFCC100M.
http://yahoolabs.tumblr.com/post/89783581601/one-hundred-million-creative-commons-flickr-images
Announcement: http://yahoolabs.tumblr.com/post/135196452221/explore-anthelion-our-open-source-focused-crawler
Source: https://github.com/yahoo/anthelion