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통계 정보와 선호 규칙을 이용한 한국어 복합 명사의 분해
윤보현(Yun Bo-Hyun),조민정(Cho Min-Jeung),임해창(Rim Hae-Chang) 한국정보과학회 1997 정보과학회논문지(B) Vol.24 No.8
한국어 복합 명사는 공백없이 붙여서 사용될 수 있고, 중의적 분할이 발생하기 때문에, 복합명사를 단위 명사로 분해하는 것은 어렵다. 복합 명사 분해는 기계번역 분야에서 한국어 복합 명사에 대한 적절한 번역어를 찾기 위해서 필요하고, 정보 검색 분야에서 검색의 재현율을 높이기 위해서 필요한 작업이다. 또한 맞춤법 검사기에서 복합 명사에 대한 띄어쓰기 방안으로 사용될 수 있다. 본 논문에서는 통계 정보와 선호 규칙을 이용하여 한국어 복합 명사를 단위 명사로 분해하는 방법을 제안한다. 통계 정보란 1음절 접사 빈도, 그리고 2음절 또는 3음절 단위 명사가 복합 명사 내에서 사용된 위치 정보와 빈도 정보를 이용하는 CFP(Compound Noun Formation Probability)를 말한다. 선호 규칙이란 중의적 분해의 명사의 개수가 최소로 접속되는 분해 패턴을 선호하는 규칙인 MNPR(Minimal Noun Preference Rule)이다. 또한 미등록어가 포함된 복합 명사를 분해하기 위해 네가지의 휴리스틱을 사용하여 분해한다. 실험 결과에 의하면, 제안된 방법은 평균적으로 약 96%의 정확도를 보였다. 게다가 여러 실험은 제안된 방법이 미등록어가 포함된 복합 명사를 분해할 수 있고, 다양한 분야에서 추출된 복합 명사에 대해 일관된 정확도를 유지하며 분해할 수 있음을 보였다. The segmentation of a Korean compound noun is a difficult problem because Korean compound nouns consist of a set of unit nouns without blanks and there are many ambiguous segmentations. It is necessary to segment correctly Korean compound nouns in order to select the light target lexemes in machine translation, to increase a recall in information retrieval, and to correct a spacing error of compound nouns in spelling checking. In this paper, we propose a method of segmenting a compound noun into unit nouns by using statistical information and a preference rule. Statistical information is a CFP(Compound Noun Formation Probability) that consists of both frequencies of one-syllabled affixes and frequencies of two-syllabled or three-syllabled nouns. A preference rule is a MNPR(Minimal Noun Preference Rule) that prefers a structure pattern of a compound noun with minimal nouns. Moreover, we apply four kinds of heuristics in order to segment compound nouns including the unknown nouns. Experimental results showed that the precision of our method is approximately 96% on average. Furthermore, the experiments proved our method could segment compound nouns including unknown nouns and maintain the constant precision in segmenting compound nouns extracted from various domains.
조민정(Cho Min-Jeung),윤보현(Yun Bo-Hyun),임해창(Rim Hae-Chang) 한국정보과학회 1997 한국정보과학회 학술발표논문집 Vol.24 No.1B
한국어에서 색인의 대상이 되는 문헌의 단어들은 상당수가 복합명사와 파생명사이다. 이들은 단일명사보다 구체적인 정보를 전달한다는 점에서 정보검색의 정확도에 중대한 영향을 미친다. 그러나, 문서에 나타나는 형태가 다양하여 색인어와 질의어간에 불일치가 일어나 검색의 재현률을 떨어뜨리는 요인이 된다. 본 논문에서는 색인과정에서 복합명사와 파생명사를 형태소단위로 분리하여 색인한 다음 검색과정에서 부분일치를 지원하여 색인어와 질의어의 불일치를 제거하는 방법을 제안한다. 이 방법을 KTSET2.0에 대해 실험한 결과, 정확도를 거의 떨어뜨리지 않고도 재현률을 올린 것으로 나타났으며, 또한 본 논문은 복합명사와 파생명사를 의미단위로 표기하고 그에 대한 부분일치를 허용함으로써 문헌에 나타난 자연어의 표층형태 차이를 극복할 수 있음을 보였다.
( Sung Wook Chun ),( Jung Eun Seo ),( Yun Jeung Rim ),( Young Hee Lee ),( Yong Chan Lee ),( Yun Hee Koo ) 대한산부인과학회 2014 대한산부인과학회 학술대회 Vol.100 No.-
목적: To evaluate the efficacy of hyaluronan-rich transfer medium in fresh and frozen-thawed blastocyst transfer in patients with a history of previous implantation failures. 방법: The study included 283 blastocyst transfers in patients with previous implantation failure. Blastocyst transfers were performed using hyaluronan- rich transfer medium in study group, and conventional transfer medium was used in the control group. According to the type of transfer (fresh elective [n=123] or frozen-thawed [n=160]), all participants were divided into two study and two control groups. 결과: The patient`s mean age (35.68 ± 0.42 versus 36.11 ± 0.28), serum anti-Mullerian hormone level (4.51 ± 0.58 ng/ml versus 4.54 ± 0.38 ng/ml), and the number of transferred embryos (1.89 ± 0.04 versus 1.91 ± 0.02) were comparable between study and control group. There were no significant differences in clinical pregnancy rate (45.5% versus 43.1%) and implantation rate (28.98 ± 3.78% versus 29.32 ± 2.73%) between two groups. In subgroup analysis, no statistically significant differences were found in clinical pregnancy rate after fresh elective transfers (46.9% versus 38.5%) or frozen-thawed transfers (44.6% versus 47.1%). 결론: The use of hyaluronan-rich transfer medium does not appear to have any significant effect on pregnancy rates in patients with previous implantation failure.
전성욱 ( Sungwook Chun ),( Jung Eun Seo ),( Yun Jeung Rim ),( Jae Hong Joo ),( Yong Chan Lee ),( Yun Hee Koo ) 대한산부인과학회 2017 대한산부인과학회 학술대회 Vol.103 No.-
Objective: To evaluate the effect of hyaluronan-rich transfer medium on pregnancy and implantation rates in fresh and frozen-thawed embryo transfers in Korean women with previous implantation failure. Methods: This retrospective study included 283 blastocyst transfers in patients with previous embryo transfer failure at a private fertility clinic. In the study group (n=88), blastocyst transfers were performed using an hyaluronan-rich transfer medium prior to transfer, whereas blastocyst transfers without any treatment served as controls (n=195). According to the type of transfer (fresh elective or frozen-thawed), all the blastocyst transfers were divided into two study and two control groups. Results: The patient’s mean age, serum anti-Mullerian hormone level, causes of infertility, embryo quality, and the number of transferred embryos were comparable between the study and control groups. There were no significant differences in clinical pregnancy rate (45.5% vs. 43.1%), implantation rate (28.9% vs. 28.8%), and clinical abortion rate (10.0% vs. 8.3%) between the two groups, and these findings were not changed after subgroup analysis according to the type of transfer. Conclusion: The use of hyaluronan-rich transfer medium in the blastocyst transfer does not appear to have any significant effect on the implantation and pregnancy rates in patients with previous implantation failure.
( Sung Wook Chun ),( Jung Eun Seo ),( Yun Jeung Rim ),( Jae Hong Joo ),( Yong Chan Lee ),( Yun Hee Koo ) 대한산부인과학회 2016 Obstetrics & Gynecology Science Vol.59 No.3
Objective To evaluate the effect of hyaluronan-rich transfer medium on pregnancy and implantation rates in fresh and frozenthawed embryo transfers in Korean women with previous implantation failure. Methods This retrospective study included 283 blastocyst transfers in patients with previous embryo transfer failure at a private fertility clinic. In the study group (n=88), blastocyst transfers were performed using an hyaluronan-rich transfer medium prior to transfer, whereas blastocyst transfers without any treatment served as controls (n=195). According to the type of transfer (fresh elective or frozen-thawed), all the blastocyst transfers were divided into two study and two control groups. Results The patient’s mean age, serum anti-Mullerian hormone level, causes of infertility, embryo quality, and the number of transferred embryos were comparable between the study and control groups. There were no significant differences in clinical pregnancy rate (45.5% vs. 43.1%), implantation rate (28.9% vs. 28.8%), and clinical abortion rate (10.0% vs. 8.3%) between the two groups, and these findings were not changed after subgroup analysis according to the type of transfer. Conclusion The use of hyaluronan-rich transfer medium in the blastocyst transfer does not appear to have any significant effect on the implantation and pregnancy rates in patients with previous implantation failure.
성인에서 전정안구반사를 이용한 평형감각과 자율신경반응의 관련성
김규겸 ( Gyu Kyum Kim ),박현영 ( Hyun Young Park ),전희정 ( Hee Jeung Jun ),윤상대 ( Sang Dae Yun ),박병림 ( Byung Rim Park ) 한국감성과학회 1999 춘계학술대회 Vol.1999 No.-
The nature of the interactions between the vestibular and autonomic systems is complex and has not been fully defined. Vestibuloocular reflex induced by sinusoidal rotation and activity of the autonomic nerves in the heart were measured to investigate the interactions between the vestibular system and the autonomic nervous system in healthy adults. Eye movement induced by sinusoidal rotation of the whole body or optokinetic stimulation at 0.04 Hz was analyzed in gain, phase, and symmetry. EKG was measured during vestibular stimulation and analyzed in heart rate variability including mean R-R interval, standard deviation (SD) and coefficient of variance (CV) of R-R interval, and power spectrum of low frequency region (LF) and high frequency region (HF). Gain of eye movement was 0.65±0.03 by rotatory stimulation, 0.70±0.02 in optokinetic stimulation, 0.08±0.02 in visual suppression, and 0.84±0.04 in visual enhancement. In R-R interval, resting condition (control) was 0.82±0.03 sec, and visual suppression showed significant increase and visual enhancement did significant decrease compared with control (p<0.01).CV was 0.06±0.02 in control and visual enhancement increased significantly (p<0.05). In LF/HF control was 1.40±0.23, which was not different from rotatory or optokinetic stimulation. But visual suppression decreased LF/HF significantly and visual enhancement increased significantly compared with control (p<0.01). These results suggest that degree of gain corresponds with LF/HF and increased gain in visual enhancement is deeply related to the activity of sympathetic nerves.