Due to unforeseen circumstances, we could not release the dataset as planned -- however, our study largely relies on publicly available data that can be retrieved from the Internet Archive, Reddit, and GDELT; enabling interested researchers to reproduce it. While we understand this requires additional time, we do encourage and hope others will try to replicate this study and/or reproduce our results with similar or different methodological approaches.
Please check paper for details on our data collection and annotation:
Alexandra Olteanu, Carlos Castillo, Jeremy Boy, Kush Varshney: "The Effect of Extremist Violence on Hateful Speech Online". In Proceedings of the AAAI Conference on Web and Social Media (ICWSM'18). AAAI Press, Stanford, CA, USA.