• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2005.11a
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• pp.21-25
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• 2005

In this paper, we constructed a two-phase spam-mail filtering system based on the lexical and conceptual information. There are two kinds of information that can distinguish the spam mail from the legitimate mail. The definite information is the mail sender's information, URL, a certain spam list, and the less definite information is the word list and concept codes extracted from the mail body. We first classified the spam mail by using the definite information, and then used the less definite information. We used the lexical information and concept codes contained in the email body for SVM learning in the $2^{nd}$ phase. According to our results the spam precision was increased if more lexical information was used as features, and the spam recall was increased when the concept codes were included in features as well.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05b
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• pp.1055-1058
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• 2003

E-Mail 서비스는 WWW시스템의 가장 기본적인 기능으로, 인터넷 기술이 발전하고 사용자가 기하급수적으로 증가함에 비례하여 e-Mail 사용자도 늘고있다. 그러나 기존의 e-Mail 은 HTML의 텍스트 기반 구조를 통한 비동기적인 형태의 서비스를 계속 유지하고 있어, 이에 대해 좀더 동기적인 표현방법이 요구되고 있다. 따라서 본 논문에서는 동기적인 E-Mail 서비스에 초점을 맞추어, 단순히 정보를 제공받는 서비스가 아니라 사용자 위주로서의 E-Mail 서비스를 제안하고자 한다 메일 내용에 대해 자동으로 필터링하여 단어마다의 색깔 지정과 하이퍼링크의 자동 생성으로 e-Mail을 재편집할 수 있는 편리함을 제공하며, e-Mail 수신자가 원하는 정보를 쉽게 효율적으로 접근할 수 있도록 한다.

• Journal of information and communication convergence engineering
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• v.7 no.3
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• pp.351-355
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• 2009

The amount of incoming e-mails is increasing rapidly due to the wide usage of Internet. We often group e-mails into categories for maintaining e-mail efficiently. However reading the email messages and classifying them is still tedious task. Moreover, the number of e-mails and manual classifying is increasing everyday. So, automatic e-mail classification is important techniques. In this paper, we propose a multi-way e-mail classification method that uses PCA for automatic category generation and dynamic category hierarchy for re-organizing e-mail categories. It classifies a huge amount of receiving e-mail messages automatically, efficiently, and accurately.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10e
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• pp.265-267
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• 2002

유선 인터넷 망의 Mail 서비스에는 POP3(Post Office Protocol 3)규약과 IMAP4 (Internet Message Access Protocol 4)규약을 기반으로 하는 Mail 등이 있다. 무선 인터넷을 이용한 모바일 메일 서비스를 위해서는, POP3 Mail의 경우 전용 모바일 메일 서버를 이용하거나 메일 변환을 거쳐야 하고. Web Mail로 이용되는 IMAP4 메일의 경우에는 원격 파일 서버와 같이 서버 측에 메일이 보관되므로 IMAP4 규약이 없는 모바일 클라이언트로는 모바일 메일 서비스의 이용이 곤란하다. 본 논문에서는 XML 기반의 마크업 언어 변환기를 설계하고. 최근 보편화되고 있는 IMAP4 기반의 Web Mail을 모바일에서 이용할 수 있도록 하는 모바일용 메일 추출 엔진을 구현함으로써, POP3 메일 서비스뿐만 아니라 IMAP4를 기반으로 하는 Web Mail을 모바일 환경에서 이용할 수 있도록 하는 모바일 메일 서비스 방법을 제시하였다.

• Journal of the Korean Society of Costume
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• v.5
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• pp.23-40
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• 1981

Jin Chung Sa is located Daeyoli, Jigogmyen, Saesangun, Choongchungnamdo, there are equipped a portrait scroll of Jung Chung Sin. And top of the town hill live in his 13th grandson, Jung Jong Sul. There are his portrait scroll and command flag and a suit of mail. According to say, remains was stollen at 1975 and it found again. But helmet thrown in the sea at the present time lceave only photo. Also, Chung Ryul Sa is located Anrakdong, Dongraegu, Pusan city, there are portrait scroll of died at the Dadaepo and Pusan Jin Sung and Dongrae Sung. Same memorial center is display mail of vice-envoy and inspector. Thus, this copy is refer to mail of Jung Chung Sin and Chung Ryul Sa, besides we will study mail production of Chung Ryul Sa possession. Even if they are bad to condition, I found court rank of mail through it. I hope, in the future, at that find a good data.

• Journal of Digital Contents Society
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• v.8 no.4
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• pp.451-458
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• 2007

In this paper, I developed a method whereby spam mail is automatically blocked through the connection to link URL. The blocking system works as follows. First, the system extracts information of URL linked to electronic mail which was delivered from any server on the internet. Next, the system lets itself be connected to the web pages through this URL. Last, the system blocks the electronic mail if those web pages contain any key word which was defined as a clue to spam mail.

• Journal of Information Technology Services
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• v.2 no.1
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• pp.25-34
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• 2003

Spam mail is one of the side effect of the development and improvement of the internet that restrains the privacy of the individual on line. However indiscriminate application of Spam mail blocking can also cause significant violation on freedom of doing business to the fluent commercial transactions on line. Therefore this research looks at the exact understanding of the concept of Spam mail and inquiry on Its issues. Also it looks at the case studies of its institutional solutions in USA and Europe as well as the advantage and disadvantage of the case studies on its technical solution. Finally, the research inquires into overall prevention of Spam mail, which considers both technical and institutional soiution. With this research, limitations of current Spam mail prevention system and technology are pointed out and more effective course of overall Spam mail prevention solution is studied.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.05a
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• pp.592-595
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• 2009

We propose an automatic spam mail classifier for e-mail data using Support Vector Machines (SVM). We use a lexical form of a word and its part of speech (POS) tags as features. We select useful features with ${\chi}^2$ statistics and represent each feature using text frequency (TF) and inversed document frequency (IDF) values for each feature. After training SVM with the features, SVM classifies each email as spam mail or not. In experiment, we acquired 82.7% of accuracy with e-mail data collected from a web mail system.

• Fashion & Textile Research Journal
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• v.5 no.3
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• pp.221-226
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• 2003

This study evaluates the problems with various aspects of Korean mail carrier uniforms. It is sponsored by the as part of a 2002 research project. This research project is 'A study on mail collection and delivery environment based on ergonomics'. One of the most urgent tasks to create a better work environment is improvement of mail carrier uniforms. Improved uniforms will result in improved job performance and satisfaction.

• Proceedings of the Korea Association of Information Systems Conference
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• 1997.10a
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• pp.697-700
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• 1997