• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.775-778
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• 2005

본 논문은 쓰레기 편지를 여과하기 위해 대상 편지에 따른 사용자들의 행동(reaction)을 묵시적(implicitly)으로 수집한 후 이를 점진적(incrementally) 기계학습기의 자질(feature)로 사용하여 편지 여과 작업의 증거가 되는 단어들을 지속적으로 학습하면서 최적의 편지 여과 결과를 제공하는 기법과 시스템 구조를 제안한다. 사용자 개인의 컴퓨터에 행동 정보와 학습 데이터를 저장하도록 설계하여 묵시적 정보 수집에서 자주 제기되는 개인 프라이버시 문제를 해결하였으며, 점진적 기계학습 기법을 사용하여 개인 정보를 포함하는 대량의 편지 학습 데이터를 모으기 힘들다는 문제를 해결하였다. 또 향후 제안하는 시스템을 이용하여 여러 종류의 기계학습 기법 중 쓰레기 편지 여과 작업을 가장 효과적으로 수행할 수 있는 기법을 선택하는 작업을 수행할 계획이다.

• 건강소식
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• v.32 no.8
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• pp.46-47
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• 2008

국군장병들의 건강을 기원하는 금연위문편지가 전달돼 화제가 되고 있다. 한국건강관리협회(회장 이순형)는 지난 6월 18일 5군수지원 사령부 186공병대대를 시작으로 부대원들을 대상으로 한 방문금연클리닉을 실시하고 금연 위문편지를 전달하는 행사를 진행했다. 어린 초등학생들이 고사리 손으로 쓴 군 장병들을 위한 금연위문 편지를 받아 본 장병들은 모처럼 즐거운 시간을 보냈다.

• Electric Engineers Magazine
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• s.373
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• pp.14-15
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• 2013

누구나 어릴적 곱게 쓴 손편지에 우표를 붙이고 빨간 우체통에 편지를 넣어서 언제 도착할까? 기다리거나 반대로 우리집에 편지가 언제올까? 하며 우체부 아저씨를 하루종일 기다린 기억이 있다. 지금이야 연락수단으로 이메일과 휴대폰이 그 자리를 대체하고 있지만 그시절 편지와 우표에는 서로를 그리워하는 진실한 마음이 담겨져 있었다.

• The Korean Journal of Archival Studies
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• no.72
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• pp.205-239
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• 2022

Park Yong-gil's personal letter 'To You' collection is a valuable historical document that contains aspects of modern and contemporary Korea, managed by the Late Spring Moon Ik-Hwan Memorial Foundation. These letters were written for about 10 years and 3 months, and there are currently about 2,304 letters left, and support is needed to secure social feasibility for long-term preservation of historical materials and to establish a stable record management system. The purpose of this article is to introduce Park Yong-gil's letter, which has not been introduced in earnest, to the archival community, and to comprehensively review the whole story and examine the tasks. To this end, the meaning of the letter in Park Yong-gil's personal life was examined, and the value of this letter was particularly highlighted in terms of being a letter written as a part of Okbaraji. And by investigating and analyzing the status of the archives, the internal and external characteristics of the letter were comprehensively analyzed. The characteristics of Park Yong-gil's letter identified as a result of the study are that it is a letter sent to one person, and it is accumulated with a considerable amount and aggregation. In particular, it is expected to have a diverse user base in that it is easy to empathize with because it contains the familiar subject matter of letters and the stories of contemporaries, and contains a variety of informational values about contemporary events and people. Based on these historical and cultural values and various useful values of the letter 'To you', various research and development of services should be made in the future.

• The KIPS Transactions:PartB
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• v.13B no.2 s.105
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• pp.163-170
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• 2006

With rapidly developing Internet applications, an e-mail has been considered as one of the most popular methods for exchanging information. The e-mail, however, has a serious problem that users ran receive a lot of unwanted e-mails, what we called, spam mails, which cause big problems economically as well as socially. In order to block and filter out the spam mails, many researchers and companies have performed many sorts of research on spam filtering. In general, users of e-mail have different criteria on deciding if an e-mail is spam or not. Furthermore, in e-mail client systems, users do different actions according to a spam mail or not. In this paper, we propose a mail filtering system using such user actions. The proposed system consists of two steps: One is an action inference step to draw user actions from an e-mail and the other is a mail classification step to decide if the e-mail is spam or not. All the two steps use incremental learning, of which an algorithm is IB2 of TiMBL. To evaluate the proposed system, we collect 12,000 mails of 12 persons. The accuracy is $81{\sim}93%$ according to each person. The proposed system outperforms, at about 14% on the average, a system that does not use any information about user actions.

• Journal of the Korean School Mathematics Society
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• v.13 no.1
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• pp.163-184
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• 2010

In this paper, we study the effects on mathematical communication and disposition for the writing mathematics letters in secondary mathematics education. For this purpose we construct a experimental class and then analyse the students' change in those aspects after applying writing mathematics letters made some significant changes on the students communication in mathematics and disposition. First. the results for this purpose on regarding the enhancement of mathematical communication are effective. Second, the results on regarding the improvement of disposition are effective.

• Communications of Mathematical Education
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• v.22 no.2
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• pp.91-108
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• 2008

One of the essential factors for successful college mathematics class is to provide a strong motivation for learning to students. In this respect, this paper attempted to find out how the letter-writing assignment can change students' learning attitude and enhance their motivation for further mathematical investigation. The process is to have all students write up letters containing a summary of the major points covered during the semester, and to find out how valuable is the letter-writing assignment. The major finding of this research is that the letter-writing assignment makes a notable contribution to the desirable change of students' learning attitude. From this finding, we suggest that the letter-writing assignment be adopted by more math classes and expect that such expansion of the letter-writing assignment would have a positive influence on the students' learning attitude.

• Journal of Korean Philosophical Society
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• v.144
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• pp.113-140
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• 2017

In this work we start from the thesis that Schiller's Aesthetic Letters contains two different doctrines of aesthetic education. When Schiller first raised the need of aesthetic education in his 1793 letters to Friedrich Christian von Augustenburg, he wanted to show that the taste for beauty contributes to morality and emphasized that man could reach pure reason only by way of beauty. When he revised the original letters and published them in 1795, he added some important parts concerning beauty as the condition and idea of humanity and the following arguments about 'aesthetic condition.' These added parts emphasize the harmony of reason and sensibility in beauty and the restoration of totality in 'aesthetic condition.' We examine the meaning and implications of 'aesthetic condition' in comparison with Schiller's 1793 doctrine of 'three-phase development of humanity,' and explain the background of this thought and also how it developed before and after Aesthetic Letters.

• Conservation Science in Museum
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• v.12
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• pp.77-88
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• 2011

The study investigated conservation and fiber of 66 letters of Sukmyeonghancheob (national treasure No.1629) that the National Cheongju Museum kept. Before treatment, the cover was destroyed and inner paper was stained by water and humidity and destroyed by insects. One volume of King Hyojong was kept at separate frame. The author disassembled book and removed old Baejeobji and inspected paper quality of letter and tested fiber by using C-stain: The author reassembled one volume by including one letter separated after repairing destroyed area of the edge.

• Information Systems Review
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• v.6 no.2
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• pp.181-193
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• 2004

Identifying the skill sets that are needed for SA is very important to business schools as well as business organizations. The tremendous speed of technological advances like the Internet always require academic researchers to periodically review the skills for obsolescence as well as identify new skills needed. In this paper,we attempt to compare the skills that are required for SAs in our textbook with those skills that are mentioned in a letter of an entry level SA who has just graduated and been working for a large corporation.