• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권2호
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• pp.462-483
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• 2016

The research on optimization of cellular network's energy efficiency (EE) towards environmental and economic sustainability has attracted increasing attention recently. In this survey, we discuss the opportunities, trends and challenges of this challenging topic. Two major contributions are presented namely 1) survey of proposed energy efficiency metrics; 2) survey of proposed energy efficient solutions. We provide a broad overview of the state of-the-art energy efficient methods covering base station (BS) hardware design, network planning and deployment, and network management and operation stages. In order to further understand how EE is assessed and improved through the heterogeneous network (HetNet), BS's energy-awareness and several typical HetNet deployment scenarios such as macrocell-microcell and macrocell-picocell are presented. The analysis of different HetNet deployment scenarios gives insights towards a successful deployment of energy efficient cellular networks.

• International Journal of Internet, Broadcasting and Communication
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• 제8권1호
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• pp.69-72
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• 2016

One of the representative side effects in current information and knowledge society is internet addiction. Nowadays single-parent families become popular due to various reasons such as increasing divorce ratio and government supports for single-parent family. National research works showed that internet addiction ratio of single-parent family children is higher than that of children of intact families. The research purpose of this paper is to investigate correlation between internet addiction and parent types. For this purpose, extensive and national survey works of NIA(National Information Society Agency of Korea) are collected and analyzed. Based on statistical analysis work, it is concluded that there is no meaningful correlation between internet addiction and parent types.

• 한국전자거래학회지
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• 제3권1호
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• pp.155-173
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• 1998

In this paper we present the development of internet banking and its impact on financial market. The internet banking has been introduced since 1990s, from which customers could obtain most financial services over internet, and will replace with the traditional banks. According to a survey, most of bankers agree that internet will play an important role in banking industry. The internet banking has an enormous impact on the transfer system and banking industry. The transfer system is divided into two-large-value transfer system and small-value transfer system, depending on the size of its transfer amount. The internet banking will enhance the transfer system, especially small-value transfer system. It will reduce the time lag between transaction of service and its payment. However, a congestion or a blockage in a part of network might stop the financial service all over the network, which is called "computer risk". As internet banking develops, banks have incentives to reduce their branches and have to compete with information-business companies which can offer financial EDI.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 1999년도 추계 학술발표대회 논문집
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• pp.24-25
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• 1999

근래 들어 소위 지구화 현상(Globalization)이 가속화되면서 문화가 새로운 경쟁적 우위의 수단으로서 자리잡아 가고 있다. 특히 냉전시대의 이데올로기가 종식되면서 문화는 모든 분야에서 중요한 하나의 화두로서 자리잡고 있는 실정이다. (중략)

• 한국정보관리학회:학술대회논문집
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• 한국정보관리학회 1997년도 제4회 학술대회 논문집
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• pp.37-53
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• 1997

The huge size of Internet does not allow ordinary information seekers to search information with ease. Now, it is almost impossible to navigate the ocean of information without effective search tools. Web search engine has been the most effective technology for information retrieval on WWW. But recently, the need for new search tools on WWW or Internet has increased drastically. Currently, there are many on-going researches on the related topics. In this survey, we categorize the new search tools into four types: monitoring systems, filtering systems, browsing assistant systems, recommending systems. These example systems are examined. We are especially interested in WWW information filtering. It is studied how to apply the information filtering techniques to WWW, The application is not so straightforward like Email, Newswire filtering systems. As a result of this study, a simple WWW information filtering system is proposed.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 1999년도 추계공동학술대회 논문집:21세기지식경영과 정보기술
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• pp.65-80
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• 1999

The Electronic Commerce is expected as one of the most prospective industries in the 21th century. This research developed a survey and analysis is based on the results of the service quality model and previous research of the service quality in MIS. Service quality, one instrument developed by the marketing area, is provided as a possible measure of internet shopping mall. Service quality measure five service dimensions of tangible, reliability, responsiveness, assurance and empathy. The main purposes of this study are to develop an exploratory model based on service quality that can explain the factors of customer's perceived service quality and investigate how these factors are related to consumer satisfaction. This study also focus on relationships among service quality, consumer satisfaction, and purchase intentions. The results of this survey are summarized as follows: (1) Reliability and responsiveness of internet shopping mall are evaluated as very important factors, (2) Service quality is an antecedent of consumer satisfaction, (3) Consumer satisfaction has a significant effect on purchase intentions.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 2003년도 춘계 학술발표회논문집
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• pp.23-29
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• 2003

We have developed a Web-based intensity map generation system. We describe here briefly our system that is automatically generating seismic intensity map using the informations afforded by Internet users who actually experience recent earthquake. Whenever internet survey questionnaires, reported from the citizens using the form available through our Web site, are received, the associated ZIP code region is color-coded according to the Modified Mercalli Intensity Scale. As the number of questionnaires is increased, the intensity value of each region divided by ZIP code is averaged and updated automatically. The coverage of acceleration stations is insufficient to map the accurate extent of ground shaking in Korea. So our system will serve as an alternative for much more rapid generation of intensity map than conventional method, such as mailing intensity survey or elaborate manual processing.

• 인터넷정보학회논문지
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• 제8권1호
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• pp.87-98
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• 2007

현재 국내 정보보호산업 통계조사는 조사목적 및 조사기준과 방법이 조사기관마다 서로 달라 신뢰성에 대한 문제가 제기되고 있다. 본 논문에서는 국내 정보보호관련 통계조사 방법의 문제점을 지적하고 보다 효율적으로 다양한 통계조사를 수행할 수 있는 조사시스템을 제안한다. 제안한 시스템은 회원 데이터베이스의 이메일과 싸이트 방문기업을 대상으로 다양한 통계조사(기업경기전망조사, 수요조사, 애로요인조사 등)를 수행할 수 있다. 특히 반복되는 동일 조사의 경우 예측에 매우 유용한 도구로 활용될 수 있을 것이다.

• Journal of the Korean Data and Information Science Society
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• 제24권1호
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• pp.41-51
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• 2013

정보화시대에 인터넷 중독의 심각성은 정보화 사회의 큰 이슈로 부각되고 있다. 인터넷사용이 급증함에 따라 정보화의 역기능도 증가하고 있어 인터넷 중독은 사회적문제로 대두되고 있다. 초고속 무선인터넷 서비스 보급 및 넷북, 스마트 폰 등의 인터넷 접속기기가 더욱 다양화됨에 따라 인터넷 중독 자가진단 검사 척도인 K-척도의 진단기준도 시대변화에 따라 변화가 요구되었으며 2012년 3월에 K-척도의 진단기준이 변경되었다. 본 논문에서는 2012년 변경된 K-척도의 기준으로 경북지역 대학생들의 인터넷 중독 실태와 K-척도 특징들을 살펴보고자 한다. K-척도에서 중독 진단을 위한 조사방식은 응답자가 직접 자신의 중독증상을 주관적 판단에 의해 응답하는 설문방식이므로 응답자의 고의적인 사실 숨김으로 인해 응답오차가 발생할 수 있다. 본 논문에서는 응답오차를 줄이기 위해 변경된 K-척도에 응답자에게 설문 응답에 대한 신뢰할 수 있는 신뢰도 값을 추가적으로 입력하여 분석의 신뢰도를 높이고자 한다.

• 한국의류학회지
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• 제34권9호
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• pp.1527-1537
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• 2010

The Internet has the potential to create new channels that might be beneficial to fashion consumers. This study examines the effects of consumer involvement and Internet behavior in on-going Internet information searches through the young female generation. For the practical research, the survey was conducted from June $15^{th}$ to July $15^{th}$ 2009. Data was collected in a total of 368 questionnaires from female university students in their 20's and analyzed 300 questionnaires with SPSS 12.0. The results were as follows. First, clothing involvement, fashion involvement, internet involvement, and Internet shopping interest had been considered as antecedents of on-going Internet information search behavior. Second, clothing involvement and Internet involvement significantly affected Internet shopping interest. However, fashion involvement and Internet involvement showed direct paths to on-going Internet information searches. Third, there were significant effects in Internet shopping interest and on-going Internet information searches. Forth, the respondents were segmented by two groups according to the level of ongoing information searches. These segmented two groups were different in regard to clothing shopping behaviors and impulse purchase behaviors.