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ÇѱÛÁ¦¸ñ(Korean Title) Çѱ¹¾î¿¡¼­ ÀÇÁ¸ ±¸¹®ºÐ¼®À» À§ÇÑ ±¸¹­À½ÀÇ È°¿ë
¿µ¹®Á¦¸ñ(English Title) Exploiting Chunking for Dependency Parsing in Korean
ÀúÀÚ(Author) Young Namgoong   Jae-Hoon Kim   ³²±Ã¿µ   ±èÀçÈÆ  
¿ø¹®¼ö·Ïó(Citation) VOL 11 NO. 07 PP. 0291 ~ 0298 (2022. 07)
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(Korean Abstract)
º» ³í¹®Àº Çѱ¹¾î¿¡ ´ëÇؼ­ ±¸¹­À½À» ¼öÇàÇÑ ÈÄ¿¡ ÀÇÁ¸±¸Á¶¸¦ ºÐ¼®ÇÏ´Â ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. ÀÇÁ¸±¸Á¶ ºÐ¼®Àº ´Ü¾îÀÇ Áö¹è¾î¸¦ °áÁ¤ÇÏ´Â °úÁ¤ÀÌ´Ù. Áö¹è¾î¸¦ Á¤ÇÒ ¶§, ¹®¹ýÀûÀÎ Áö¹è¾î¸¦ Á¤ÇÒ °ÍÀÎÁö ÀǹÌÀûÀÎ Áö¹è¾î¸¦ Á¤ÇÒ °ÍÀÎÁö°¡ °íÁúÀûÀÎ ¹®Á¦ÀÌ´Ù. ÀϹÝÀûÀ¸·Î´Â ¹®¹ýÀûÀÎ Áö¹è¾î¸¦ Á¤ÇÏ°í ÀÖ´Ù. ¿¹¸¦ µé¸é ¹®Àå ¡°¹äÀ» ¸Ô°í ½Í´Ù¡±¿¡¼­ ¾îÀý ¡°¸Ô°í¡±ÀÇ Áö¹è¾î·Î ¡°½Í´Ù¡±¸¦ Á¤ÇÑ´Ù. ±×·¯³ª ¡°½Í´Ù¡±´Â º¸Á¶¿ë¾ðÀ¸·Î ÀǹÌÀûÀ¸·Î Áö¹è¾î°¡ µÉ ¼ö ¾ø´Ù. ÀÌ¿Í °°Àº ¹æ¹ýÀ¸·Î ±¸¹®À» ºÐ¼®Çϸé Àǹ̺м®À» À§Çؼ­ ¶Ç ´Ù¸¥ º¯È¯ÀÌ ÀÖ¾î¾ß ÇÑ´Ù. º» ³í¹®¿¡¼­´Â ÀÌ·± ¹®Á¦¸¦ ´Ù¼Ò ¿ÏÈ­Çϱâ À§Çؼ­ ±¸¹­À½À» ¼öÇàÇÑ ÈÄ¿¡ ±¸¹®À» ºÐ¼®ÇÏ´Â ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. ±¸¹­À½Àº ¹®ÀåÀ» ±¸¼º¼ººÐ ´ÜÀ§·Î ºÐÇÒÇÏ´Â °úÁ¤ÀÌ¸ç ±¸¼º¼ººÐÀº ³»¿ë¾î ¸»µ¢ÀÌ¿Í ±â´É¾î, ¸»µ¢ÀÌ·Î ±¸¼ºµÈ´Ù. ±¸¹­À½À» ¼öÇàÇÏ¸é ±¸¹® ºÐ¼®ÀÇ ÀÔ·ÂÀÌ µÇ´Â ¹®Àå ¼ººÐÀÇ ¼ö°¡ ÁÙ¾îµé¹Ç·Î ±¸¹® ºÐ¼® ¼Óµµ°¡ °³¼±µÉ ¼ö ÀÖÀ¸¸ç, ¹®Àå¿¡¼­ Á߽ɾ Áß½ÉÀ¸·Î ÇϳªÀÇ ¸»µ¢ÀÌ·Î ¹­À̹ǷΠ¸»µ¢ÀÌ¿¡ ´ëÇؼ­¸¸ ±× ÀÇÁ¸ °ü°è¸¦ ÆľÇÇÒ ¼ö ÀÖ¾î ±¸¹® ºÐ¼®ÀÇ È¿À²¼ºÀ» ³ôÀÏ ¼ö ÀÖ´Ù. º» ³í¹®Àº ¼¼Á¾ÀÇÁ¸¸»¹¶Ä¡¸¦ »ç¿ëÇؼ­ ¼º´ÉÀ» ºÐ¼®ÇßÀ¸¸ç UAS¿Í LAS°¡ °¢°¢ 86.48%¿Í 84.56%¿´À¸¸ç ÀÔ·ÂÀÇ ³ëµå ¼öµµ ¾à 22% Á¤µµ ÁÙÀÏ ¼ö ÀÖ¾ú´Ù.
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(English Abstract)
In this paper, we present a method for dependency parsing with chunking in Korean. Dependency parsing is a task of determining a governor of every word in a sentence. In general, we used to determine the syntactic governor in Korean and should transform the syntactic structure into semantic structure for further processing like semantic analysis in natural language processing. There is a notorious problem to determine whether syntactic or semantic governor. For example, the syntactic governor of the word ¡°¸Ô°í (eat)¡± in the sentence ¡°¹äÀ» ¸Ô°í ½Í´Ù (would like to eat)¡± is ¡°½Í´Ù (would like to)¡±, which is an auxiliary verb and therefore can not be a semantic governor. In order to mitigate this somewhat, we propose a Korean dependency parsing after chunking, which is a process of segmenting a sentence into constituents. A constituent is a word or a group of words that function as a single unit within a dependency structure and is called a chunk in this paper. Compared to traditional dependency parsing, there are some advantage of the proposed method: (1) The number of input units in parsing can be reduced and then the parsing speed could be faster. (2) The effectiveness of parsing can be improved by considering the relation between two head words in chunks. Through experiments for Sejong dependency corpus, we have shown that the USA and LAS of the proposed method are 86.48% and 84.56%, respectively and the number of input units is reduced by about 22%p.
Å°¿öµå(Keyword) Dependency Structure   Constituent   Chunking   Parsing   ÀÇÁ¸±¸Á¶   ±¸¼º¼ººÐ   ±¸¹­À½   ±¸¹®ºÐ¼®  
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