• Journal of the Korea Society of Computer and Information
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• v.16 no.2
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• pp.33-46
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• 2011

Since an e-mail has been an important mean of communication and information sharing, there have been much effort to classify e-mails efficiently by their contents. An e-mail has various forms in length and style, and words used in an e-mail are usually irregular. In addition, the criteria of an e-mail classification are subjective. As a result, it is quite difficult for the conventional text classification technique to be adapted to an e-mail classification efficiently. An e-mail classification technique in a commercial e-mail program uses a simple text filtering technique in an e-mail client. In the previous studies on automatic classification of an e-mail, the Naive Bayesian technique based on the probability has been used to improve the classification accuracy, and most of them are on an e-mail in English. This paper proposes the personalized recommendation technique of an email in Korean using a data mining technique of frequent patterns. The proposed technique consists of two phases such as the pre-processing of e-mails in an e-mail folder and the generating a profile for the e-mail folder. The generated profile is used for an e-mail to be classified into the most appropriate e-mail folder by the subjective criteria. The e-mail classification system is also implemented, which adapts the proposed technique.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.229-232
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• 2005

기존 E-mail 프로그램은 비싼 통신요금과 저속의 위성통신 환경에서 최대한 통신비용을 줄이기 위한 목적으로 개발되었고, 그 결과 프로그램의 유연성이 떨어져 새로운 기능의 추가나 업그레이드가 용이하지 않았다. 또한 기존 프로그램의 경우는, E-mail 전용 프로그램으로서 다양한 육상과 해상간의 업무용 프로그램과 연동시키는 데에 어려움이 많았으며, 개발자 입장에서도 무선 위성통신의 특성상 개발이 쉽지 않았다. 따라서 본 논문에서는 기존 프로그램과는 달리 데이터를 패킷으로 분리하여 전송함으로써 프로토콜에 유연성을 주고, 실시간으로 여러 종류의 데이터를 전송할 수 있게 하여 동시에 E-mail뿐만 아니라, 모니터링 데이터, SMS, PMS를 위한 데이터베이스 등의 다양한 데이터를 전송할 수 있도록 설계 및 구현하였다. 또한 프로그램 개발자들이 까다로운 위성통신 환경을 몰라도 쉽게 개발할 수 있게 하고자, 컴포넌트를 윈도우즈 서비스 프로그램화 하였다.

• Journal of KIISE:Computing Practices and Letters
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• v.9 no.1
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• pp.86-94
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• 2003

Certified e-mail system guarantees that recipient will get mail content if and only if mall originator receives a receipt. Unlike previous schemes, Optimistic protocols recently published generate a receipt when it meets the condition that the mail content can be accessed by recliner at any time. So originator cannot assure the delivery of e-mail although he can get a receipt. In this paper, we show some flaws in optimistic protocols and propose improved schemes using delivery deadline. Modified protocols guarantee proof-of-receipt and eliminate the problem mentioned above. Furthermore, proposed modification technique can be applicable to most optimistic protocols and is efficient in the sense that modified schemes do not increase the number of messages.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.5
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• pp.1601-1607
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• 2010

This paper presents FMEA (Failure Mode Effect Analysis) for maintenance of mail sorting machine which is for automatic sorting of mail. We suggest the update method of regular diagnosis item and period for maintenance of mail sorting machine using the risk priority number which is calculated by severity, occurrence, and detection of failure mode of mail sorting machine, and shows FMEA adoption example of letter sorting machine. This paper also describes the current maintenance system and status of mail sorting machine in the domestic postal logistics environment, and FMEA adoption step. The proposed maintenance using FMEA will be adapted for more easy and efficiency maintenance of mail sorting machine.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10a
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• pp.700-702
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• 2001

As computers and networks become popular, distributing information on the Interment is common in our daily life. Also, the explosion of the Internet, of wireless digital communication and data exchange on Internet has rapidly changed the way we connect with other people. But secure mall is gamins popularity abroad and domestically because of their nature of prodding security. That is. it has been used a variety of fields such as general mail and e-mail for advertisement But, As the data transmitted on network can be easily opened or forged with simple operations. Most of existing e-mall system don't have any security on the transmitted information. Thus, security mail system need to provide security including message encryption, content integrity, message origin authentication, and non-repudiation. In this paper, we design implement secure mall system with non-repudiation service and encryption capability to provide services for certification of delivery and certification of content as well as the basic security services.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.2
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• pp.348-354
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• 2005

These days, Electronic mail is being used in everyday's life. And on the other hand, we are facing spam mails' problems. Spam mails are widely used by means of marketing in e-Commerce. To block these spam mails, we are using filtering or pricing systems. But these solutions are raising other problems such as impediment in reception or availability caused by false positive or payment resistance. To solve these problems, we propose an Indirect Model on Electronic Mail Control System(IMEMCS) which controls an unsolicited electronic mail and prevents an useful electronic mail from discarding. We design and implement the IMEMCS to enhance the usefulness and the availability. Being tested the IMEMCS to verify the usability and the efficiency, it gave us a very successful result.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.34 no.2
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• pp.92-102
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• 2011

Visibility of the flow of goods is an important service element when considering how to improve the quality of a logistics service. Registered mail service of Korea Post, one of logistics service providers, currently supply information on the handling of postal items, such as receipts and delivery and arrival times to customers. However, internally problems related to excessive spending on operating expenses and less reliable tracking and tracing information exist due to errors in the information acquisition and link handling processes, leading to unnecessarily duplicated tasks. Therefore, the purpose of this paper is to propose process optimization method for improving the quality of tracking and tracing information for registered mail items. We analyzed the process and information control system of the current registered mail service and identified the basic causes of the existence of less reliable tracking and tracing information. And we present optimized mail handling and information management process for removing internal problems. Test results using tracking and tracing information examples show a significant performance of the proposed method.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11b
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• pp.801-804
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• 2003

인터넷과 E-mail 의 사용자가 증가하게 되면서 대량의 메일을 송수신하는 경우, 메일에 대한 효율적 관리의 문제와 불필요한 메일에 대한 관리의 중요성이 부각되고 있다. 본 논문에서는 -mail 시스템의 첨부파일 형식별 자동분류 에이전트는 메일의 내용을 읽어 Keyword 를 검색, 추출한 뒤 불필요한 메일로 판단되는 경우 자동삭제 시키고 그렇지 않은 경우 카테고리별로 폴더를 생성하여 첨부파일 들을 형식별로 분류 시켜주는 E-mail 시스템의 첨부파일 형식별 자동분류 에이전트를 제안하였다. 수신된 메일을 일일이 확인하고 분류해야만 했던 기존의 시스템과는 달리 본 논문에서 제안하고자 하는 시스템을 이용했을 경우 노력과 시간을 절감하고 불필요한 메일에 의한 저장공간의 낭비감소와 첨부파일을 효과적으로 관리할 수 있다는 장점이 있다.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04b
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• pp.472-474
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• 2002

본 논문에서는 전자메일을 사용자 적합도(선호도)를 기준으로 분류하기 위한 구조를 제안한다. 분류는 1차 분류와 2차 분류로 나눠지는데, 1차 분류에서는 사용자 적합도를 판단하기 위해 사용자 관련 정보로부터 동적 시소러스를 구축하고, 구축된 시소러스와의 비교를 통해 사용자에게 유용한 메일인지 아닌지를 결정하고, 2차 분류에서는 사용자가 지정한 폴더키워드를 중심으로 사용자 시소러스로부터 유전자 알고리즘을 이용해 추출한 키워드들과의 적합도 비교를 통해서 특정 폴더로의 분류가 이뤄지게 된다 테스트에는 메일 정보값(Mail Information Word)을 추출하기 위해 HAM(Hangup Analysys Module)을 포함하는 메일정보추줄 에이전트를 사용하였고, mail의 subject와 본문(body)로부터 추출된 16개의 word정보와 시소러스 적합도 정보, 분류 적합도 정보를 하나의 데이터구조로 사용하였다. 이러한 통할된 시스템 구조와 data structure를 이용해 mail을 사용자의 선호도에 따라. 1차와 2차에 걸친 분류시 분류가 사용자 선호도에 근접하게 이루어 질 수 있음을 확인하였다.

• The Transactions of the Korea Information Processing Society
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• v.6 no.4
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• pp.968-976
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• 1999

Currently, in the most mail automatic processing centers, after facing and canceling, envelope mail is passed through an Optical Character Recognition/Barcode Sorter(OCR/BS) to read the address and 3 of 5 fluorescent(luminescent) barcode is applied. Normally, 30%∼35% of this mail is rejected. The usual reasons for read failure are poor printing quality of address and barcode, script printing and failure to locate the address. This paper describes a verification system of the postal 3 of 5 customer barcode for solving this problem. The certification system of the 3 of 5 customer barcode consists of barcode verification system and postal address database. The purpose of certification system of the customer barcode verifies the postal 3 of 5 customer barcode and tests matching of mail piece postal address, and retrieves postal code.