Our MSR2015 (data showcase) paper has been published!! This work was conducted in collaboration with a research group of Nara Institute of Science and Technology, Japan. The dataset is downloadable from this page.

@inproceedings{Ohira_MSR2015,
title = {A Dataset of High Impact Bugs: Manually-Classified Issue Reports},
author = {Masao Ohira and Yutaro Kashiwa and Yosuke Yamatani and Hayato Yoshiyuki and Yoshiya Maeda and Nachai Limsettho and Keisuke Fujino and Hideaki Hata and Akinori Ihara and Kenichi Matsumoto},
booktitle = {Proceedings of 12th Working Conference on Mining Software Repositories (MSR2015)},
pages = {518--521},
month = {5},
year = {2015},
}