- Duplicates: https://github.com/src-d/datasets/tree/master/Duplicates
- GAL datasets: https://github.com/ipeirotis/Get-Another-Label/tree/master/data
- CUBAM: https://github.com/welinder/cubam
- HC: https://dl.acm.org/citation.cfm?id=2908715
- WB: Welinder et al. 2010
- Snow: https://sites.google.com/site/nlpannotations/