• Proceedings of the Korea Information Processing Society Conference
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• 2007.05a
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• pp.707-709
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• 2007

매일 생성되는 웹 신문에서 독자가 접해보지 못한 단어는 독자의 이해를 돕기 위하여 괄호를 사용한다. 괄호를 사용하여 표기된 웹 신문의 한국어-영어 대역쌍은 특정 기사에는 출현빈도가 낮지만 전체적으로 여러 신문의 기사를 봤을 때, 최소한 한번 이상 출현하게 된다. 즉, 괄호 안의 동일한 영어 용어 두 개 이상의 문장을 최장일치법 알고리즘에 적용하면 한국어 단어 경계를 자동으로 인식할 수 있다. 본 논문에서는 이런 웹 신문의 괄호 표기 특성을 이용하여 한-영 대역어쌍을 추출하는 방법을 제안한다. 웹 신문 기사 43,648 건에서 최대 2,087개의 한-영 대역어를 추출하였다. 3 개의 서로 다른 테스트 그룹으로 실험한 결과 최대 84.2%의 정확도를 보였다.

• Journal of the Korean School Mathematics Society
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• v.19 no.1
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• pp.1-19
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• 2016

This study investigated the mathematical notation used today in terms of skip ping the parenthesis. At first we have studied the elementary and secondary curriculum content related to omitted rules. As a result, it is difficult to find explicit evidence to answer that question 'What is the calculation of the $48{\div}2(9+3)$?'. In order to inquire the notation fundamentally, we checked the characteristics on prefix, infix and postfix, and looked into the advantages and disadvantages on infix. At the same time we illuminated the development of mathematical notation from the point of view of skipping the parenthesis. From this investigation, we could check that this interpretation was smooth in the point of view that skipping the parentheses are the image of the function. Through this we proposed some teaching methods including 'teaching mathematical notation based on historic genetic principle', 'reproduction of efforts to overcome the disadvantages of infix and understand the context to choose infix', 'finding the omitted parentheses to identify the fundamental formula' and 'specifying the viewpoint that skipping the multiplication notation can be considered as an image of the function'.

• Journal of the Korean School Mathematics Society
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• v.15 no.4
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• pp.627-641
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• 2012

We found a few students had an error in the function and equation units, because most of mathematicians omitted the multiplication signs. In the mathematical history, the multiplication and parentheses signs had various changes. Based on the Histogenetic Principle, high level students know that the letter in the functions and equations represents a number and the related principles, so they have no big problems. But since the low level students stay in the early days in the mathematical history, they have some problems in the modern function and equation. Therefore, while we study the function and equation units with the low level students, we present that we have to be cautious when we omit the multiplication and parentheses signs.

• Korean Journal of Optics and Photonics
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• v.18 no.6
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• pp.410-420
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• 2007

We theoretically derive the set of utilizable paraxial zoom locus equations for all complicated zoom lens systems with infinite object distance, such as a camera zoom lens, by using the Gaussian bracket method and the matrix representation of paraxial ray tracing. And we make the zoom locus program according to these equations in Visual Basic. Since we have applied the paraxial ray tracing equations into Gaussian bracket representation, the resultant program systematically simplifies various constraints of the zoom loci of various N group types. Consequently, the solutions of this method can be consistently used in all types of zoom lens in the step of initial design about zoom loci. Finally, in order to verify the usefulness of this method, we show that one example among 4 groups and that among 5 groups, which are very complex zoom lens systems, can be rapidly and with versatility traced through various interpolations by using this program.

• Annual Conference on Human and Language Technology
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• 2021.10a
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• pp.264-269
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• 2021

상호참조해결은 주어진 문서에서 상호참조해결의 대상이 될 수 있는 멘션을 추출하고, 같은 개체를 의미하는 멘션 쌍 또는 집합을 찾는 자연어처리 작업이다. 하나의 멘션 내에 멘션이 될 수 있는 다른 단어를 포함하는 중첩 멘션은 순차적 레이블링으로 해결할 수 없는 문제가 있다. 본 논문에서는 이러한 문제를 해결하기 위해 멘션의 시작 단어의 위치를 여는 괄호('('), 마지막 위치를 닫는 괄호(')')로 태깅하고 이 괄호들을 예측하는 멘션 탐지 모델과 멘션 탐지 모델에서 예측된 멘션을 바탕으로 포인터 네트워크를 이용하여 같은 개체를 나타내는 멘션을 군집화하는 상호참조해결 모델을 제안한다. 실험 결과, 4개의 영어 대화 데이터셋에서 멘션 탐지 모델은 F1-score (Light) 94.17%, (AMI) 90.86%, (Persuasion) 92.93%, (Switchboard) 91.04%의 성능을 보이고, 상호참조해결 모델에서는 CoNLL F1 (Light) 69.1%, (AMI) 57.6%, (Persuasion) 71.0%, (Switchboard) 65.7%의 성능을 보인다.

• KLA journal
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• v.44 no.1 s.338
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• pp.14-17
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• 2003

개최월일, 주최기간, 행사명, ‘주제’, 개최장소, 연락처 순으로 게재. 게재된 편집부가 국내 도서관계 각 단체에 보낸 설문지에 답해온 것을 바탕으로 정리된 것임. 구체적인 내용은 연락처(괄호안의 전화 및 팩스번호)등으로 확인하여 주시기 바랍니다. -편집자주

• The KIPS Transactions:PartB
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• v.9B no.4
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• pp.445-452
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• 2002

In Korean-English mixed documents, translated technical words are usually used with the attached full words or original words enclosed with parenthesis. In this paper, a collective method is presented to recognize and extract the translation phrases with using a base translation dictionary. In order to process the unregistered title words and translation words in the dictionary, a phonetic similarity matching method, a translation partial matching method, and a compound word matching method are newly proposed. The experiment result of each method was measured in F-measure(the alpha is set to 0.4) ; exact matching of dictionary terms as a baseline method showed 23.8%, the hybrid method of translation partial matching and phonetic similarity matching 75.9%, and the compound word matching method including the hybrid method 77.3%, which is 3.25 times better than the baseline method.

• Education of Primary School Mathematics
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• v.21 no.3
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• pp.289-307
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• 2018

Although mixed calculation of natural numbers is important in that it completes arithmetic calculation of natural numbers in elementary school, few studies have been conducted regarding its instruction methods. Given this, this study analyzed Korean mathematics textbooks (from the fifth textbooks to the 2009 revised textbooks) along with Japanese and Singaporean textbooks in terms of the parentheses and the order of operations regarding mixed calculation of natural numbers. The results of this study showed that there were differences in introducing the parentheses and representing them in an explicit way per textbooks. In the Korean textbooks, the order of operations was presented mostly with the real-life contexts but it was not always in a diagrammatic representation. In contrast, in the Singaporean textbooks, the order of operations was presented without the real-life contexts and the use of calculators was emphasized. In the Japanese textbooks, the order of operations was presented with the real-life contexts and a hierarchy of operations was emphasized. Based on these results, this study suggested several implications of textbook development and instructional methods regarding mixed calculations of natural numbers.

• KLA journal
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• v.46 no.1 s.356
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• pp.33-36
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• 2005

ㆍ개최월일, 주최기간, 행사명, 「주제」, 개최장소, 연락처 순으로 게재 ㆍ게재된 정보는 편집부가 국내 도서관계 각 단체에 보낸 설문지에 답해온 것을 바탕으로 정리된 것임. 구체적인 내용은 연락처(괄호안의 전화 및 팩스번호 등)로 확인하여 주시기 바람. ㆍ보다 상세하고 풍부한 내용 게재를 위한 도서관계의 많은 협조를 부탁드립니다.

• KLA journal
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• v.41 no.1 s.320
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• pp.68-69
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• 2000

- 개최월일, 주최기간, 행사명, ‘주제’, 개최장소, 연락처 순으로 게재 - #표시는 개최일 미정 - 게재된 정보는 편집부가 국내 도서관계 각 단체에 보낸 설문지에 답해온 것을 바탕으로 정리된 것임. 구체적인 내용은 연락처(괄호안의 전화 및 팩스번호)로 확인하여 주시기 바람. * 보다 상세하고 풍부한 내용 게재를 위한 도서관계의 많은 협조를 부탁드립니다.