TSUBAKI: An Open Search Engine Infrastructure for Developing New Information Access Methodology Keiji Shinzato author Tomohide Shibata author Daisuke Kawahara author Chikara Hashimoto author Sadao Kurohashi author 2008 text Proceedings of the Third International Joint Conference on Natural Language Processing: Volume-I conference publication shinzato-etal-2008-tsubaki https://aclanthology.org/I08-1025/ 2008