• 한국의류학회지
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• 제34권1호
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• pp.40-49
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• 2010

This study investigates the differences in: 1) attitudes toward the advertising ofjeans, buying intension, importance of merchandise selection factors, and utilization of information sources among groups according to the level of fashion involvement 2) attitudes toward advertising and buying intension among types of advertising 3) importance among merchandise selection factors 4) utilization among types of information source. Questionnaires were distributed to 300 men and women between 10 and 30 years of age. A sample of 286 men and women responded to the questionnaire. Using SPSS/PC version 12.0, factor analysis, reliability analysis, analysis of variance, and randomized block design are used for the data analysis. The results showed significant differences in: 1) attitudes toward the advertising of jeans, buying intension, importance of merchandise selection factors, and utilization of information source among groups according to levels of fashion involvement 2) attitudes toward advertising and buying intension among types of advertising 3) importance among merchandise selection factors 4) utilization among types of information sources.

• 한국BIM학회 논문집
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• 제5권3호
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• pp.1-10
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• 2015

We have researched a character of BIM(Building Information Modeling) and GIS(Geographic Information System) data for integrated utilization of urban spatial data and building data for $CO_2$ reduction. We consider literature on integrated utilization of BIM and GIS and measure method of $CO_2$ in urban spatial unit. Among them without distortion of standard data structure, derive method how to install between BIM and GIS standard data. Rhino & Grasshopper is utilization tools of DB platform. The compatibility with existing BIM and GIS data format, graphic and numeric results can be output at the same time. And using the existing ARCHSIM, it can be easily combined for building energy analysis program. Based on BIM and GIS data to run an energy analysis target on Majang-dong, it could be poly synthetically derived the value information and graphic information.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권10호
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• pp.2883-2902
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• 2023

Since the existing anti-jamming methods, including intelligent methods, have difficulty against high-speed reactive jamming, we studied a new methodology for jamming utilization instead of avoiding jamming. Different from the existing jamming utilization techniques that harvest energy from the jamming signal as a power supply, our proposed method can take the jamming signal as a favorable factor for frequency detection. Specifically, we design an intelligent differential frequency hopping communication framework (IDFH), which contains two stages of training and communication. We first adopt supervised learning to get the jamming rule during the training stage when the synchronizing sequence is sent. And then, we utilize the jamming rule to improve the frequency detection during the communication stage when the real payload is sent. Simulation results show that the proposed method successfully combated high-speed reactive jamming with different parameters. And the communication performance increases as the power of the jamming signal increase, hence the jamming signal can help users communicate in a low signal-to-noise ratio (SNR) environment.

• 한국정보통신학회논문지
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• 제3권2호
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• pp.245-253
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• 1999

본 논문에서는 수산업을 주산업으로 하고 있는 통영지역의 정보활성화에 대하여 연구하였다. 그리고 정보의 효용가치를 극대화시키기 위한 방안으로 해양정보망, 수산정보망, 수산유통정보망 등 세 가지의 네트워크 모델을 제시하였다. 해양정보망에서는 해양환경 및 해양생물의 정보화에 대해서, 수산정보망에서는 어업 및 양식업의 정보화에 대해서, 수산유통정보망에서는 양식 및 일반 어류유통의 정보화에 대한 방안을 제시하였다. 각 정보망에서 수집된 자료는 실시간으로 처리하여 최종 사용자가 항상 최신의 자료를 사용할 수 있도록 Web 기반에서의 서비스를 구현하였다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 1999년도 춘계종합학술대회
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• pp.70-77
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• 1999

본 논문에서는 수산업을 주산업으로 하고 있는 통영지역의 정보활성화에 대하여 연구하였다. 그리고 정보의 효용가치를 극대화시키기 위한 방안으로 해양정보망, 수산정보망, 수산유통정보망 등 세 가지의 네트워크 모델을 제시하였다. 해양정보망에서는 해양환경 및 해양생물의 정보화에 대해서, 수산정보망에서는 어업 및 양식업의 정보화에 대해서, 수산유통정보망에서는 양식 및 일반 어류유통의 정보화에 대한 방안을 제시하였다. 각 정보망에서 수집된 자료는 실시간으로 처리하여 최종 사용자가 항상 최신의 자료를 사용할 수 있도록 Web 기반에서의 서비스를 구현하였다.

• 한국정보시스템학회지:정보시스템연구
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• 제12권2호
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• pp.73-90
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• 2003

IT and e-business is a hot issue of the world business and economic communities. The web site is the portal through which most of electronic transactions are conducted today. The main purpose of this paper is to investigate on factors influencing the web site development at the firms in Korea. Survey questionnaires were distributed via email & post to 281 firms that have implemented web site. Out of 44 responded questionnaires, 39 data sets were available for statistical analysis with SPPSSWin 10.1. Factor analysis identified five dimensions of web site development : (1) support of top management, (2) information technologies maturity, (3) strategic utilization of web site, (4) strength of rivalry among competing firm, (5) support policy of the government. Results of this study show that information technologies maturity and strategic utilization of web site positively influence on web site development. But support of top management, strength of rivalry among competing firm and support policy of the government don't influence on web site development. This study may provide a guideline to improve the quality of web site development.

• 정보관리연구
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• 제29권2호
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• pp.18-36
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• 1998

이용자 관점의 데이터베이스 이용 실태를 조사 분석하여 그 문제점과 개선 사항을 도출하고 데이터베이스 제작시 기초자료로 활용하여 데이터베이스 이용의 활성화를 도모하며, 국내 데이터베이스의 발전 방향을 정립하기 위해 PC통신 이용자를 대상으로 정보 수요, PC통신 이용과 데이터베이스 이용 실태 및 인터넷 이용에 관한 조사 분석에 관한 내용을 정리하였다.

• 인터넷정보학회논문지
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• 제21권4호
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• pp.87-95
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• 2020

한국과학기술정보연구원(KISTI)가 제공하는 과학기술정보서비스는 일반적인 정보서비스와 유사하게 구축된 콘텐츠를 이용자가 쉽고 편리하게 검색하고 조회할 수 있도록 만들어진 서비스이다. NDSL은 KISTI의 핵심 과학기술정보서비스로서 약 1억 38백만건의 콘텐츠를 제공하고 있으며 2019년 1년간 약 93백만회의 페이지 뷰를 보이고 있다. 본 논문에서는 NDSL이 제공하고 있는 학술논문, 보고서, 특허 등의 과학기술정보가 웹 서비스(https://www.ndsl.kr)를 통해서 어떻게 검색되고 활용되는지와 입력된 검색 질의어 등을 분석을 통해 다양한 인사이트를 도출하였다. 콘텐츠 구축 현황, 콘텐츠 유형별 활용 현황과 활용 방식 등의 일반적인 통계 이외에도 월별/요일별/시간대별 콘텐츠의 이용 행태, 조회수 구간별 활용 콘텐츠의 유형, 콘텐츠 유형별 1회 검색 대비 조회 비율, 학술논문의 발행년도별 이용 현황 비교, 국내 학술논문의 활용과 KCI 영향력 지수와의 관계, 학술논문과 특허 활용에 대한 특징 등 콘텐츠 유형별 활용성에 대한 분석을 진행하였다. 또한 콘텐츠 유형별 검색 질의어의 구성 방식, 질의어의 단어수 분석, 검색 질의어와 시기성의 관계 등의 검색 질의어에 대하여 분석하였으며 NDSL에서는 한글 성명 검색이 많다는 특징도 발견할 수 있었다. 이러한 분석 결과를 토대로 정보시스템 구축 관점에서의 NDSL 서비스 개선 방안을 제안하고자 한다. 본 논문에서는 콘텐츠 활용에 대한 행태 분석 결과를 이용자의 검색 결과에 동적으로 반영, 비로그인 이용자에 대한 식별을 통해 타겟팅 서비스가 가능하도록 시스템을 구축, 질의어 확장하는 등의 것을 NDSL 개선 사항으로 제안하고자 한다.

• International Journal of Knowledge Content Development & Technology
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• 제11권1호
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• pp.49-64
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• 2021

This research paper delved into the availability and utilization of library portal services for research in university libraries in Nigeria. Two research questions and two null hypotheses were formulated to guide the study. A structured questionnaire was used for data collection. The study was carried out in Nnamdi Azikiwe Library, University of Nigeria Nsukka (UNN) and Felix Aghagbo Nwako Library, Nnamdi Azikiwe University Library (UNIZIK), Awka. A total of 70 professionals (librarians and system analysts) in these libraries supplied data for the study. Data collected was analyzed using mean and standard deviation. These were used to answer the research questions while the null hypotheses were tested using t-test statistic at 0.05 level of significance and 68 degree of freedom. Major findings showed that portal services available in the library showed that the areas of availability of library portal services in Nnamdi Azikiwe Library, U.N.N. includes Agriculture, Health Sciences, Engineering, Environmental Sciences and information about institution, Social Sciences, Arts and Humanities, Natural Sciences. In Festus Aghagbo Nwako Library, Awka, the areas of Portal Library Services include Career Development, Federal Government Programs, Environmental Sciences, Biological Sciences, Social Sciences, Arts and Humanities, Engineering, and Health Sciences. Findings on extent of utilization of portal services available in the libraries indicated that portal services are utilized to a low extent in the university libraries. Furthermore, librarians did not significantly differ in their opinions on the availability of library portal services and on the extent of utilization of library portal services in the libraries under study. It is therefore recommended that provisions should be made by the universities and library management to provide and update required portal services in addition to creating enabling environment for enhanced access and utilization of these services. The governments must make an effort to provide funds for policy implementation, necessary technology training for librarians and users, and develop general information infrastructure.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권3호
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• pp.890-910
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• 2014

This paper investigates the spectrum hole utilization of cooperative schemes for the two-way relaying model in order to improve the utilization efficiency of limited spectrum holes in cognitive radio networks with imperfect spectrum sensing. We propose two specific bidirectional secondary data transmission (BSDT) schemes with two-step and three-step two-way relaying models, i.e., two-BSDT and three-BSDT schemes, where the spectrum sensing and the secondary data transmission are jointly designed. In the proposed cooperative schemes, the best two-way relay channel between two secondary users is selected from a group of secondary users serving as cognitive relays and assists the bi-directional communication between the two secondary users without a direct link. The closed-form asymptotic expressions for outage probabilities of the two schemes are derived with a primary user protection constraint over Rayleigh fading channels. Based on the derived outage probabilities, the spectrum hole utilization is calculated to evaluate the percentage of spectrum holes used by the two secondary users for their successful information exchange without channel outage. Numerical results show that the spectrum hole utilization depends on the spectrum sensing overhead and the channel gain from a primary user to secondary users. Additionally, we compare the spectrum hole utilization of the two schemes as the varying of secondary signal to noise ratio, the number of cognitive relays, and symmetric and asymmetric channels.