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In this article, we propose cross-lingual annotation projection methods that leverage parallel corpora to build a relation extraction system for a resource-poor language without significant annotation efforts. To make our method more reliable, we introduce two types of projection approaches with noise reduction strategies. We demonstrate the merit of our method using a Korean relation extraction system trained on projected examples from an English-Korean parallel corpus. Experiments show the feasibility of our approaches through comparison to other systems based on monolingual resources.<\/jats:p>","DOI":"10.1145\/2529994","type":"journal-article","created":{"date-parts":[[2014,3,4]],"date-time":"2014-03-04T13:24:59Z","timestamp":1393939499000},"page":"1-26","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":6,"title":["Cross-Lingual Annotation Projection for Weakly-Supervised Relation Extraction"],"prefix":"10.1145","volume":"13","author":[{"given":"Seokhwan","family":"Kim","sequence":"first","affiliation":[{"name":"Institute for InfoComm Research"}]},{"given":"Minwoo","family":"Jeong","sequence":"additional","affiliation":[{"name":"Microsoft Bing"}]},{"given":"Jonghoon","family":"Lee","sequence":"additional","affiliation":[{"name":"Pohang University of Science and Technology"}]},{"given":"Gary Geunbae","family":"Lee","sequence":"additional","affiliation":[{"name":"Pohang University of Science and Technology"}]}],"member":"320","published-online":{"date-parts":[[2014,2]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1145\/336597.336644"},{"volume-title":"Proceedings of the 20th International Joint Conference on Artificial Intelligence. 2670--2676","author":"Banko M.","key":"e_1_2_1_2_1","unstructured":"Banko , M. , Cafarella , M. J. , Soderland , S. , Broadhead , M. , and Etzioni , O . 2007. Open Information Extraction from the Web . In Proceedings of the 20th International Joint Conference on Artificial Intelligence. 2670--2676 . Banko, M., Cafarella, M. J., Soderland, S., Broadhead, M., and Etzioni, O. 2007. Open Information Extraction from the Web. In Proceedings of the 20th International Joint Conference on Artificial Intelligence. 2670--2676."},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.5555\/646543.696220"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.3115\/1220575.1220666"},{"key":"e_1_2_1_5_1","volume-title":"Proceedings of the 45th Annual Meeting of the Association for Computational Linguistics.","volume":"45","author":"Bunescu R.","unstructured":"Bunescu , R. and Mooney , R . 2007. Learning to extract relations from the Web using minimal supervision . In Proceedings of the 45th Annual Meeting of the Association for Computational Linguistics. Vol. 45 , 576--583. Bunescu, R. and Mooney, R. 2007. Learning to extract relations from the Web using minimal supervision. In Proceedings of the 45th Annual Meeting of the Association for Computational Linguistics. Vol. 45, 576--583."},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.3115\/1220175.1220192"},{"volume-title":"Proceedings of the 48th Annual Meeting of the Association for Computational Linguistics. Association for Computational Linguistics, 631--639","author":"Chen Y.","key":"e_1_2_1_7_1","unstructured":"Chen , Y. , Zong , C. , and Su , K. Y . 2010. On jointly recognizing and aligning bilingual named entities . In Proceedings of the 48th Annual Meeting of the Association for Computational Linguistics. Association for Computational Linguistics, 631--639 . Chen, Y., Zong, C., and Su, K. Y. 2010. On jointly recognizing and aligning bilingual named entities. In Proceedings of the 48th Annual Meeting of the Association for Computational Linguistics. 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