PRIME: a system for multi-lingual patent retrieval Shigeto Higuchi author Masatoshi Fukui author Atsushi Fujii author Tetsuya Ishikawa author 2001-sep 18-22 text Proceedings of Machine Translation Summit VIII Bente Maegaard editor Santiago de Compostela, Spain conference publication higuchi-etal-2001-prime https://aclanthology.org/2001.mtsummit-papers.30/ 2001-sep 18-22