• Proceedings of the Korean Information Science Society Conference
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• 2000.10a
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• pp.278-280
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• 2000

디지털 경제시대에는 시장의 힘이 고객으로 급속하게 이동하고 있다. 이러한 디지털 경제 시대의 지배 논리가 비즈니스 모델의 핵심인 분야가 전자상거래 분야이며, 기업은 성공을 위해서 고객관계관리를 통한 고객의 로열티 확보에 주력하여야 한다. 기존의 연구는 주로 단일 사업자가 모든 서비스를 제공하는 포탈 사이트형 비즈니스 모델에 초점이 맞추어져 왔다. 그러나 포탈형에서 허브형 비즈니스 모델로 바뀌고 있는 현재의 e-business 추세를 반영한 연구는 아직 이루어지고 있지 않다. 본 연구에서는 단일 사업자를 위한 것이 아닌 허브 사이트형과 같은 차세대 비즈니스 모델에서 사업자들간에 유기적인 정보의 공유와 제공을 통한 고객관계관리에 대해서 살펴보고, 이를 뒷받침하는 정보시스템을 개발하였다. 시스템의 개발과정에서는 다음과 같은 접근방법을 취하였다. 첫째, 고객정보를 공유해 활용할 수 있는 기반을 마련하기 위해 통합 고객데이터베이스를 구축하였다. 둘째, 통합 고객데이터베이스에 분석방법을 적용해 기본적인 고객분류를 하였다. 셋째, 통합 고객데이터베이스가 각 회원사의 백 오피스 시스템 즉 MIS와 통합되고, 통합된 고객정보와 기본적인 고객성향 분석을 토대로 각 회원사마다 독특한 방식으로 고객에 대한 전략적 세분화를 하도록 하였다.

• The KIPS Transactions:PartD
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• v.11D no.2
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• pp.485-494
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• 2004

Recently, the wireless internet terminals like mobile phones or PDAs prevail in the management of customers. With such terminals, businessmen can get business data and information of customers in real time, in connection with mobile group wares. By the wireless terminals, customers can conveniently get information of goods, search purchase sites, and give orders and do settlement. This paper aims to present the safe data integrity modules of the wireless internet terminal, for service providing correct real-time promotion information, by using users' disposition, situation, Purchase information. This study aims to suggest an implementation methodology of security module for data integrity of mobile internet terminal. This is based on the WTLS of WAP Protocol. This security module is expected to achieve central role in conversion of wireless internet environment and emphasis of encryption technology and safe and calculable wireless communication environment construction

• The KIPS Transactions:PartB
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• v.13B no.5 s.108
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• pp.561-568
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• 2006

WPS(Wearable Personal Station) for next generation PC can define as a core terminal of 'Ubiquitous Computing' that include information processing and network function and overcome spatial limitation in acquisition of new information. As a way to acquire significant dynamic gesture data of user from haptic devices, traditional gesture recognizer based on desktop-PC using wire communication module has several restrictions such as conditionality on space, complexity between transmission mediums(cable elements), limitation of motion and incommodiousness on use. Accordingly, in this paper, in order to overcome these problems, we implement hand gesture recognition system using fuzzy algorithm and neural network for Post PC(the embedded-ubiquitous environment using blue-tooth module and WPS). Also, we propose most efficient and reasonable hand gesture recognition interface for Post PC through evaluation and analysis of performance about each gesture recognition system. The proposed gesture recognition system consists of three modules: 1) gesture input module that processes motion of dynamic hand to input data 2) Relational Database Management System(hereafter, RDBMS) module to segment significant gestures from input data and 3) 2 each different recognition modulo: fuzzy max-min and neural network recognition module to recognize significant gesture of continuous / dynamic gestures. Experimental result shows the average recognition rate of 98.8% in fuzzy min-nin module and 96.7% in neural network recognition module about significantly dynamic gestures.

• Journal of Distribution Science
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• v.4 no.1
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• pp.5-26
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• 2006

As the capital of knowledge becomes more important than traditional capital like land or labor in the 21st century, the most competitive resource for corporations is knowledge. Furthermore, corporations may evaluate and improve latent knowledge of 'intellectual capital(IC)' within organizations, which will enhance their performance in the future. However, most Korea Distribution Companies have evaluated only tangible assets, ignoring latent capital. Since enterpreneurs have recognized that they cannot explain the difference between maret value and book value, the major advanced states lead to more sophisticated techniques to evaluate IC value. Although it is extremely important and urgent to evaluate IC value, the indexes of evaluating IC have never been examined and have been adopted by many corporations. Therfore, this study intends to develop a index for IC valuation. This study hopes to give some insights into the practical use of intellectual capital for the Korea Distribution Companies and help them develop a strategic perspective to enhance their competitiveness.

• Journal of the Korean Society of Radiology
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• v.7 no.2
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• pp.113-120
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• 2013

Nowadays, the medical system towards patients changes into the medical services. As the human rights are improved and the capitalism is enlarged, the rights and needs of patients are gradually increasing. Also, based on this change, several systems in hospitals are revised according to the convenience and needs of patients. Thus, the cases of mobile portable among examinations are getting augmented. Because the number of mobile portable examinations in patient's room, intensive care unit, operating room and recovery room increases, neighboring patients are unnecessarily exposed to radiation so that the examination is legally regulated. Hospitals have to specify that "In case that the examination is taken out of the operating room, emergency room or intensive care units, the portable medical X-ray protective blocks should be set" in accordance with the standards of radiation protective facility in diagnostic radiological system. Some keep this regulation well, but mostly they do not keep. In this study, we shielded around the Collimator where the radiation is detected and then checked the change of dose regarding that of angles in portable tube and collimator before and after shielding. Moreover, we tried to figure out the effects of shielding on dose according to the distance change between patients' beds. As a result, the neighboring areas around the collimator are affected by the shielding. After shielding, the radiation is blocked 20% more than doing nothing. When doing the portable examination, the exposure doses are increased $0^{\circ}C$, $90^{\circ}C$ and $45^{\circ}C$ in order. At the time when the angle is set, the change of doses around the collimator decline after shielding. In addition, the exposure doses related to the distance of beds are less at 1m than 0.5m. In consideration of the shielding effects, putting the beds as far as possible is the best way to block the radiation, which is close to 100%. Next thing is shielding the collimator and its effect is about 20%, and it is more or less 10% by controlling the angles. When taking the portable examination, it is better to keep the patients and guardians far enough away to reduce the exposure doses. However, in case that the bed is fixed and the patient cannot move, it is suggested to shield around the collimator. Furthermore, $90^{\circ}C$ of collimator and tube is recommended. If it is not possible, the examination should be taken at $0^{\circ}C$ and $45^{\circ}C$ is better to be disallowed. The radiation-related workers should be aware of above results, and apply them to themselves in practice. Also, it is recommended to carry out researches and try hard to figure out the ways of reducing the exposure doses and shielding the radiation effectively.