A Robust Retrieval Engine for Proximal and Structural Search Katsuya Masuda author Takashi Ninomiya author Yusuke Miyao author Tomoko Ohta author Jun’ichi Tsujii author 2003 text Companion Volume of the Proceedings of HLT-NAACL 2003 - Short Papers conference publication masuda-etal-2003-robust https://aclanthology.org/N03-2020/ 2003 58 60