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Process."],"published-print":{"date-parts":[[2015,6,12]]},"abstract":"<jats:p>There has been recent interest in statistical approaches to Korean morphological analysis. However, previous studies have been based mostly on generative models, including a hidden Markov model (HMM), without utilizing discriminative models such as a conditional random field (CRF). We present a two-stage discriminative approach based on CRFs for Korean morphological analysis. Similar to methods used for Chinese, we perform two disambiguation procedures based on CRFs: (1) morpheme segmentation and (2) POS tagging. In morpheme segmentation, an input sentence is segmented into sequences of morphemes, where a morpheme unit is either atomic or compound. In the POS tagging procedure, each morpheme (atomic or compound) is assigned a POS tag. Once POS tagging is complete, we carry out a post-processing of the compound morphemes, where each compound morpheme is further decomposed into atomic morphemes, which is based on pre-analyzed patterns and generalized HMMs obtained from the given tagged corpus. Experimental results show the promise of our proposed method.<\/jats:p>","DOI":"10.1145\/2700051","type":"journal-article","created":{"date-parts":[[2015,6,18]],"date-time":"2015-06-18T18:14:05Z","timestamp":1434651245000},"page":"1-16","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":16,"title":["Conditional Random Fields for Korean Morpheme Segmentation and POS Tagging"],"prefix":"10.1145","volume":"14","author":[{"given":"Seung-Hoon","family":"Na","sequence":"first","affiliation":[{"name":"Busan University of Foreign Studies"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2015,6,12]]},"reference":[{"key":"e_1_2_1_1_1","first-page":"1497","article-title":"A method for reducing dictionary access with bidirectional longest match strategy in Korean morphological analyzer","volume":"20","author":"Choi Jae-Hyeok","year":"1993","unstructured":"Jae-Hyeok Choi and Sang-Jo Lee . 1993 . A method for reducing dictionary access with bidirectional longest match strategy in Korean morphological analyzer . J. Korean Inf. Sci. Soc. Softw. Appl. (in Korean) 20 , 10, 1497 -- 1507 . Jae-Hyeok Choi and Sang-Jo Lee. 1993. A method for reducing dictionary access with bidirectional longest match strategy in Korean morphological analyzer. J. Korean Inf. Sci. Soc. Softw. Appl. (in Korean) 20, 10, 1497--1507.","journal-title":"J. Korean Inf. Sci. Soc. Softw. Appl. (in Korean)"},{"volume-title":"Korean part-of-speech tagger using Eojeol patterns. Master\u2019s thesis","author":"Hong Jeen-Pyo","key":"e_1_2_1_2_1","unstructured":"Jeen-Pyo Hong . 2008. Korean part-of-speech tagger using Eojeol patterns. Master\u2019s thesis , Changwon National University . Jeen-Pyo Hong. 2008. Korean part-of-speech tagger using Eojeol patterns. Master\u2019s thesis, Changwon National University."},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.3115\/991886.991923"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.3115\/991886.991979"},{"key":"e_1_2_1_5_1","volume-title":"Proceedings of the Natural Language Processing Pacific Rim Symposium (NLPRS\u201995)","author":"Kim Jae-Hoon","year":"1995","unstructured":"Jae-Hoon Kim , Byung-Gyu Jang , Gil Chang Kim , and Jungyun Seo . 1995 . Morphological ambiguity reduction using subsumption relation in Korean . In Proceedings of the Natural Language Processing Pacific Rim Symposium (NLPRS\u201995) . Jae-Hoon Kim, Byung-Gyu Jang, Gil Chang Kim, and Jungyun Seo. 1995. Morphological ambiguity reduction using subsumption relation in Korean. In Proceedings of the Natural Language Processing Pacific Rim Symposium (NLPRS\u201995)."},{"key":"e_1_2_1_6_1","unstructured":"Seong-Yong Kim. 1987. A Morphological Analyzer for Korean Language with Tabular Parsing Method and Connectivity Information. Master\u2019s thesis KAIST.  Seong-Yong Kim. 1987. A Morphological Analyzer for Korean Language with Tabular Parsing Method and Connectivity Information. Master\u2019s thesis KAIST."},{"key":"e_1_2_1_7_1","volume-title":"Proceedings of the 8th International Joint Conference on Artificial Intelligence (IJCAI\u201983)","volume":"2","author":"Koskenniemi Kimmo","year":"1983","unstructured":"Kimmo Koskenniemi . 1983 . Two-level model for morphological analysis . In Proceedings of the 8th International Joint Conference on Artificial Intelligence (IJCAI\u201983) . Vol. 2 , 683--685. Kimmo Koskenniemi. 1983. Two-level model for morphological analysis. In Proceedings of the 8th International Joint Conference on Artificial Intelligence (IJCAI\u201983). Vol. 2, 683--685."},{"key":"e_1_2_1_8_1","unstructured":"Taku Kudo. 2006. 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