• Journal of Broadcast Engineering
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• v.15 no.2
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• pp.304-312
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• 2010

This paper presents the design of alert message and message segmentation method for the Terrestrial DMB Automatic Emergency Alert Service Standard. This paper begins with the introduction of the standard and some background. The alert message contains the essential information of the alert. Structured information is represented as coded fields and the unstructured as short sentences. Design factors of each field are analyzed first. Next each field’s semantics and syntax are described. The message segmentation method is presented next. The previous study selected FIDC as the message delivery channel. However, in most cases, the size of the alert message exceeds the maximum size of FIG, which is the basic unit packet for the channel. The current T-DMB standard does not support the segmentation method for FIDC. To solve the problem, this paper proposes an elegant segmentation method that garantees reliable, flexible, and fast receiver characteristic. This paper concludes with some additional tasks that should be resolved before the full-time alert service.

• Journal of the Korea Society of Computer and Information
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• v.16 no.1
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• pp.183-189
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• 2011

This paper suggests a user based OST(Open Street Traffic) system that solves TPEG's one-way communication problem, UTIS's limited usage and DSRC's small traffic bandwidth. In current commercial TPEG service, only some service providers collect traffic information. Thus, it can't cover traffic status in local lanes And UTIS, which local governments and police supports, requires additional equipments. Currently, only taxi and official vehicles use this system. Therefore, new traffic service by mobile device and user's participation can provide very detail traffic information coupling with previous traffic systems. But in this new system, real-time high volume data can be a problem. So, in this paper, new data storage manager design(TDSM :Traffic Data Storage Manager) is suggested and its performance is measured against commercial DBMS.

• The Research Journal of the Costume Culture
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• v.16 no.4
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• pp.762-774
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• 2008

Recently, silver consumers were became new consumption market. The purpose of this study were to find out the relationships among cognitive age and variables related to hairdressing purchases in hairdressing shop. Data were obtained from 853 women in the 50's and 60's who living in Busan. Data were analyzed by frequency analysis, descriptive analysis, factor analysis, Cronbach's alpha and, $X^2$-test, t-test using SPSS WIN 12.0. The results of the study were as follows: First, Service quality of hairdressing shop were consisted of Personal Service, Facilities Service, Skill Service, and Policy Service. Second, Silver consumers' cognitive age influenced purchase behavior of hairdressing services. Most of respondents were perceived themselves to be younger than their chronological ages. Repurchasing intention of silvers who were active and self-fidelity or perceived themselves cognitively younger were more likely to be influenced by store service quality and consumer satisfaction. This study provides an insight into silver fashion marketers and retailers for developing market strategies for silver fashion market. Implications are drawn for the information useful to consumer behavior researchers and retailers of the silver fashion market.

• Journal of the Korea society of information convergence
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• v.5 no.2
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• pp.91-99
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• 2012

In this paper, we discuss the effectiveness of information system such as POS(point of sale) and PDS(POS data service) to the government-supported small retail shop called nadle shop. Also, the functional requirements for PDS implementation are examined. Introduction of information system to small retail shop is necessary for achieving good - but a little impact on - management performance. For the empirical study, the survey results for POS utilization and management performance for the nadle shops supported from 2010 to the first half of 2011 are analyzed. Consequently, information system doesn't give direct effect on producing management performance. However, no doubt it contribute service quality and satisfaction to the customers and provides refined information to be useful to the owners.

• Journal of Digital Contents Society
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• v.19 no.5
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• pp.1003-1010
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• 2018

When an applicant requests the emergency situation call or safe return service using a smart device, the smart surveillance service can select the CCTV(closed circuit television) cameras around the applicant using applicant's location information, then automatically takes a photograph to track the applicant. Since the surrounding CCTV camera shoots the applicant continuously using location information and the applicant can be observed by the monitor agent in real time, this service can be very helpful in an applicant's emergency situation or safe return. The existing smart surveillance service does not consider the priority of the emergency situation call and safe return service. Therefore, there is the disadvantage that the applicant who requests an emergency situation call service can not be photographed when safe return service has already preoccupied CCTV cameras which are capable of taking a picture of the applicant. The proposed smart surveillance service improves this disadvantage by using service priority.

• Journal of the Korean Society for information Management
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• v.30 no.4
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• pp.133-154
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• 2013

The purpose of this study is to analyze service quality factors that affect user satisfaction of NDSL Open Service (NOS) and to improve standards of open service for sharing information through the user satisfaction survey. User satisfaction indexes were developed to measure the all aspects of the NOS services. The quality index, satisfaction index, and performance index were identified in this survey. According to the survey findings, the levels of social quality and social satisfaction are relatively high, this shows the positive evaluation and expectation of researchers for open services. However, relatively low level is identified in area of service process quality. Therefore, NOS requires method to help easily take advantage of OpenAPI and strategy to increase service process satisfaction and service environment satisfaction.

• The Transactions of the Korea Information Processing Society
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• v.7 no.2S
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• pp.608-620
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• 2000

A web based E-mail system consists of serves which supply mail accounts and service, and clients which take part of interfacing with users. The web browsers such as Netscape Navigator and Internet Explorer are the popular clients. Users who cannot afford to get an E-mail id in general mail servers are, therefore, able to reach a e-mailing service in the web environment by using client programs in connection with a mail server. Although the quality of service has been upgraded a lot in recent days, it doesn't provide with satisfactory services anymore. In this paper, we intend to design a mail agent system based on the web environment. Through this system we could reach a convenient user interface based on Internet Explorer and could easily access administratory environment on the basis of NT Server 4.0. Using the service engine dominent in mail agent system, it could provide with convenient user interfacing tools like responding the absence of users, mail filtering and refusing messages, etc. And it would ultimately make possible a constant system security, by preventing system failure phenomena caused by extraordinary uses beyond its capability.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.19 no.12
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• pp.2340-2352
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• 1994

Under the current IN(Intelligent Network) Architecture, most of their function were performed in SSP(Service Switching point), so the provision or modification of service was limited. To over come these limitation, the structure of 'AIN(Advanced Intelligent Network)' emerged. In this paper, SSP for AIN structure is designed and its performance is evaluated. In other words, the requirements for AIN service implementation are specified on the basis of ITU-T Recommendations. From these requirments and TDX-10 Exchange architecture, the SSP for AIN structure is designed, and its performance is analyzed through the method of simulation and analytical modeling. As a conclusion of this paper, when the system is operated as a standard model, the maximum throughput is 1,270,000 BHCA for Free Phone Service and 1,190,000 BHCA for Credit Call Service. The processors in INS(Interconnection Network Subsystem) are proved to be bottleneck elements. To enhance the performance, several suggestions such as processor and link speedup, and other D_bus service policy are proposed.

• Annual Conference of KIPS
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• 2018.05a
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• pp.206-207
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• 2018

방대한 정보를 사용자에게 제공하기 위해 검색 엔진은 다양한 알고리즘을 통해 사용자마다의 최적화된 정보를 구성한다. 과제, 논문, 특허, 연구보고서 등 과학기술정보를 서비스 하는 주체 역시 나름의 검색 알고리즘으로 정보를 제공하지만, 질의어와 문서간의 적합도만을 측정하여 검색 결과를 제시할 뿐 사용자의 관심 분야나 요구를 반영하지 않고 있다. 특히 관심 분야에 적합한 과학기술정보를 사용자가 접근하기 쉽게 제공하는 것은 매우 중요하다. 본 논문에서는 사용자 관심분야를 서비스 이용행태로부터 결정하여 이를 과학기술정보 개인화에 반영하는 서비스에 대해 제안하였다. 이를 위해 실시간 관심분야 추적, 관심 태그 클라우드 제공, 관심분야 기반 추천정보 제공, 검색 결과 개인화 네 가지 기능으로 구성된 과학기술정보 개인화 서비스를 설계하고 구현하였다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.13 no.1
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• pp.215-230
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• 2002

A braille library undoubtedly changes with a changing information environment. However "changing information service" as a topic couldn't be found among previous researches. That's the reason it felt necessary in this paper to analyze the way service in a braille library changes according to a changing environment. as well as to make clear the meaning and the role a braille library has for blind people. As a first step, a questionnaire aimed at Korean braille libraries was carried out in order to understand changes of library service. Results showed that most changes in braille library service were due to the influence of internet, directly or indirectly. In this connection. the way braille libraries made us of this new tool was analyzed as follows. Firstly braille libraries were found to help a better circulation of information from internet towards blind people. It appeared secondly that internet was also used in order to improve already existing services as well as new services. Thirdly libraries were shown to have developed new services related to internet although these services weren't initially library ones. These new aspects of library service constitute by themselves a proof of the importance of braille libraries, although blind people might in some cases obtain the wished piece of information without them. Therefore braille libraries prove to be remained necessarily even if information environment changes.t changes.