• The Journal of the Korea Contents Association
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• v.3 no.4
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• pp.95-102
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• 2003

He report a systematic method which is useful for the information analysis on technology trends and market status and the construction of analyzed contents for analyzed contents for nanotechnology(NT). For the selection of key subjects, we first surveyed the preliminary demand for items and asked for the opinions of an advisory committee, and implemented the analysis on information and technology trends jointly with internal and external experts. As a result of this study, not only a theoretical method for information analysis is presented, but also a database for the analysis contents is constructed by applying this method. Eventually the national competitiveness for NT is expected to improve by providing these contents to the experts in industry, universities, research institutes and government through internet, publications and CD-ROM.

• Journal of Information Management
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• v.32 no.2
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• pp.40-53
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• 2001

The purpose of this study is to explore the current situation and problems in standardizing knowledge information and information technology in the KISTI, and collect the basic data necessary for establishing the national information infrastructure. Through a survey and interviews with nine departments of the Information Services Sector of the KISTI, data were collected regarding the management and exchange of information and the operation of communication networks. According to the analysis of fifty KISTI databases and their operation, tasks to be first standardized include Classification of ST resources, Metadata, Date modeling, Data format, DBMS, ST terminology, and Retrieval protocol.

• Journal of Institute of Control, Robotics and Systems
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• v.18 no.9
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• pp.887-893
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• 2012

In this paper, we propose a new approach to extract directional features based on directional patterns of each region in fingerprint images. The proposed approach computes the center of gravity to extract features from fingerprint images of various shapes. According to it, we divide a fingerprint image into four regions and compute the directional values of each region. To extract directional features of each region from a fingerprint image, we spilt direction values of ridges in a region into 18 classes and compute frequency distribution of each region. Through the result of our experiment using FVC2002 DB database acquired by electronic devices, we show that directional features are effectively extracted from various fingerprint images of exceptional inputs which lost all or part of singularities. To verify the performance of the proposed approach, we explained the process to model Arch, Left, Right and Whorl class using the extracted directional features of four regions and analyzed the classification result.

• Annual Conference of KIPS
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• 2000.10b
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• pp.1489-1492
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• 2000

요즘 전자상거래의 활성화로 전 세계적으로 인터넷 쇼핑몰과 경매 사이트를 운영하는 곳이 많이 있다. 하지만 사용하던 물건을 팔고 새로운 상품을 구매하려고 한다면 일반적으로 중고 물건을 파는 사이트를 찾아서 그곳에서 물건을 팔고 다시 다른 인터넷 쇼핑몰에서 물건을 사야하는 번거러움이 있다. 그리고 쇼핑몰 사이트의 관리자 입장에서는 판매부진상품이나 이원상품 등을 관리하기 어렵다. 또 기존에 구축되어 있는 맡은 쇼핑몰과 경매사이트의 데이터베이스의 활용도를 보면 저장된 상품을 보여주고. 판매가 되면 삭제되는 역할에 국한된 경우가 많다. 본 논문에서는 전자상거래의 사용자가 인터넷을 보다 간편하게 이용하고 사용자가 등록한 중고물품, 쇼핑몰의 판매부진상품, 이월상품의 경매로 인한 구매자의 참여를 위해 쇼핑몰과 경매 사이트를 통합하여 운영하고, 지금까지의 공통적이고 일반적인 내용의 E-mail 마케팅을 데이터 베이스 통계분석에 의해 차별화 되고 집중적인 E-mail 마케팅으로 구현한다.

• Annual Conference of KIPS
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• 2003.05c
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• pp.1551-1554
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• 2003

최근 다양한 의료정보 시스템이 개발되어, 그 사용이 급증하고 있다. 이 들 각각의 의료정보 시스템에서 발생, 축적된 의료정보는 분산 이질의 형태를 가지며, 또한 같은 의미를 갖는 의료정보가 각기 다른 구조와 용어로 기술되어 축적되는 것이 일반적이다. 이와 같이 개별적으로 개발, 활용되어 온 의료정보를 웹 상에서 통합하여, 단일화 된 의료정보 검색 기능을 제공하기 위해서는 이들 의료정보의 의미적 연관성을 고려한 정보의 통합, 검색 기술의 개발이 필수적이다. 본 논문에서는 의미적 의료정보의 통합을 위한 UMLS와 LOINC 데이터베이스 기반의 연관 값 지식베이스의 설계 및 개발 방식을 제안한다. 웹 상에 존재하는 각종 분산 이질 형태의 의료정보는 XML을 공통 데이터 구조로 하여 통합되며, 정보 통합의 과정에서 연관 값 지식베이스를 참조하여 의미적 관련도가 높은 의료정보(구조 정보와 내용 정보)는 상호 연결되어, 진정한 의미의 정보 통합을 구현하게 된다. 지식베이스는 용어별로 식별자, 요소명, 연관값, 복수형, 동의어, 한글 이름 등의 필드틀 가지며, 현재 상담, 처방, 보험, 의료용어, 증상, 임상결과 등 적용분야 별로 작성된 연관 값 지식베이스가 구현되어 있다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38C no.2
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• pp.181-188
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• 2013

In this paper, we present a system design for location determination inside the ship. Since the GPS signal can not be received in the interior of the large vessel, we use the vessel wireless AP (Access Point) RSSI (received signal strength indication) to accurately measure the position. We convert the RSSI for the 3 AP's into distance through the Friis formula and get the location through triangulation. The signal strength varies irregularly due to noise making it difficult to obtain the exact location. Thus Kalman filter is used to real-time position correction, that is store in a server database.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.30 no.6C
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• pp.593-600
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• 2005

Recently, RFID system is a main technology to realize ubiquitous computing environments. Because RFID system that is an automatic identification technology using radio frequency is a system to read and write the data of the entity. Therefore, many companies are interested in RFID system to reduce supply chain management and inventory control cost. However, for providing secure service, RFID authentication technology secure against tracking by an adversary is researched first. In this paper, we proposed security level based RFID authentication protocol providing reduce computational and communicational workload in the back-end database. The proposed protocol is secure against reply attack, spoofing attack, traffic analysis, and location privacy, since the proposed protocol based on the security of the hash function.

• Journal of Digital Contents Society
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• v.18 no.2
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• pp.257-266
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• 2017

Recently, a variety of books have been published in various fields, and the range of selection for both online and offline bookstores have been widened. However, there is a vinyl packaging phenomenon to prevent damage being made to the books in bookstores. This makes it difficult to have a look through on the contents of the book, affecting consumers' purchasing decisions. These factors causes the annual average reading volume to decrease. Therefore, in this paper, we would like to propose a "bookmark" application to provide consumers with book information service using AR and Marker technology, tackling the decrease in sales caused by the problem.

• Journal of IKEEE
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• v.19 no.4
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• pp.617-624
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• 2015

In this paper, an adult authentication system based on authentication certificate was designed and implemented using smartphone and near-field communication. It has three advantages. First, it achieves easy, convenient, and fast authentication by using smartphone and near-field communication. Second, it achieves extremely high security and reliability by exploiting authentication certificate. Third, it achieves extremely low risk of personal information leakage by generating and sending only virtual identification code. Finally, it has a proper legal basis by Digital Signature Act. It consists of adult authentication module, near-field communication control module, policy server module, and database server module. A prototype of the proposed system was designed and implemented, and it was verified to have correct operation.

• Journal of the Korea Safety Management & Science
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• v.13 no.2
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• pp.31-42
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• 2011

Smart-Phones are utilized in disaster management field because it can deliver disaster information to large population simultaneously and quickly, and provide accurate information through situation-based service using the LBS(Location Based Service). To study on the utilization of smart phone for disaster information collection and dissemination method, this study suggest a framework which connects smart phone by loading application for reporting disaster. The disaster monitoring and situation dissemination system framework using smart phone is composed of 4 parts. First, smart phone application enters image, video, voice and text information and location of the disaster. Second, the disaster report reception and situation dissemination server receives the information, save in the DB, and send through smart phone SMS. Third, store into disaster information database. Fourth, display the disaster report and management information on 2D GIS, support the decision making process in deciding whether to manage as disaster, and disaster management web service which disseminates situation.