• 사회복지연구
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• 제44권2호
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• pp.359-385
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• 2013

본 연구의 목적은 노인의 인터넷활용(인터넷활용빈도 및 인터넷활용능력)이 생활만족도에 미치는 영향력을 검증하고, 이 관계에서 사회활동의 매개효과를 분석하는 것이다. 연구에서 활용한 자료는 서울시복지재단에서 실시한 서울시 복지패널조사자료 중 2010년도 가구원용 데이터이며, 1862명이 분석대상이다. 연구방법은 빈도분석, 기술분석, 상관관계분석을 통해 대상자의 일반적 특성 및 주요 변수의 특성을 살펴보았으며, 구조방정식으로 연구모형을 검증하고, Sobel test를 통해 사회활동의 매개효과를 분석하였다. 분석 결과 첫째, 노인의 인터넷활용빈도는 생활만족도에 영향요인이 아닌 것으로 나타났고 반대로 인터넷활용능력은 생활만족도에 영향을 주는 것으로 나타났다. 둘째, 노인의 인터넷활용능력과 생활만족도의 관계에서 사회활동은 부분매개효과를 가지는 것으로 나타났다. 이러한 연구결과를 바탕으로, 노인 인터넷활용 활성화에 대한 이론적·실천적 함의를 제시하였다.

• Journal of Preventive Medicine and Public Health
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• 제41권4호
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• pp.241-248
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• 2008

Objectives: The purpose of the study was to identify a gap between consumer characteristics and utilization of health information on the Internet. Methods: A telephone survey of nationally representative samples was conducted using structured questionnaires, and 1,000 of the 1,189 responses obtained were included in our analysis. The following variables were included in the analysis as potential predictors of health information use on the Internet: predisposing factors such as gender, age, and education status; enabling factors such as region and monthly household income; consumer need for health information; and attitude to health. Multiple logistic regression analysis was used to evaluate the association between utilization rate and the potential predictors. Results: Thirty-nine percent of consumers had obtained health information on the Internet over a one-year period. The utilization rates were higher for consumers who were young, educated, worked in the office setting, had higher incomes, wanted health information, and were able to use the Internet. The utilization rate was 5.35 times higher in the younger group (20-30 years) than in the elderly group (95% CI=2.21-12.97); 2.21 times higher for office workers than for manual workers (95% CI=1.16-4.20); 3.61 times higher for college graduates than for middle school graduates and below (95% CI=1.07-11.59); 1.99 times higher for people with monthly household incomes over 3,000,000 won than for those with monthly household incomes below 1,500,000 won (95% CI=1.01-3.92). Conclusions: There needs to be a paradigm shift, with consideration of not only Internet accessibility in the digital age, but also consumer ability and attitudes toward utilization of health information.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제4권4호
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• pp.475-490
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• 2010

Cognitive Radio is an advanced enabling technology for the efficient utilization of vacant spectrum due to its ability to sense the spectrum environment. It is important to determine accurate spectrum utilization of the primary system in a cognitive radio environment. In order to define the spectrum utilization state, many CR systems use what is known as the quiet period (QP) method. However, even when using a QP, interference can occur. This causes reduced system throughput and contrary to the basic condition of cognitive radio. In order to reduce the interference time, a frequency-hopping algorithm is proposed here. Additionally, to complement the loss of throughput in the FH, a HMM-based channel prediction algorithm and a channel allocation algorithm is proposed. Simulations were conducted while varying several parameters. The findings show that the proposed algorithm outperforms conventional channel allocation algorithms.

• 컴퓨터교육학회논문지
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• 제13권4호
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• pp.27-39
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• 2010

지금까지의 인터넷 관련 교육은 주로 '정보통신윤리'와 '인터넷 중독'에 초점을 맞추고 있어 인터넷미디어 시대를 위한 '인터넷미디어'의 창의적이고, 바람직한 이해와 활용을 이끌어내기 위한 '인터넷 리터러시 교육'의 필요성이 사회적으로 제기되고 있다. 미디어 교육과 관련된 기존 연구에서 가장 취약점은 '교육성과' 에 대한 분석이 전혀 이루어지지 않고 있다는데 있다. 따라서 본 연구에서는 전국 중학교 학생 708명을 대상으로 진행한 인터넷미디어 교육에 따른 인터넷에 대한 감성적 태도, 매체 인식, 인터넷 이용효능감, 인터넷미디어 능력, 인터넷 윤리의식의 변화를 살펴보았다. 그 결과 인터넷 이용효능감과 인터넷미디어 능력은 큰 변화를 나타냈으며 아울러 수업을 통해 자연스럽게 인터넷윤리 의식도 높아지는 결과를 보였다. 이러한 결과는 인터넷미디어 교육 프로그램의 실질적 성과를 입증하였다는데 의의를 가질 수 있다.

• 한국컴퓨터정보학회논문지
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• 제19권8호
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• pp.197-205
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• 2014

본 연구의 목적은 정보화에 대한 적응 및 확산 정도가 상대적으로 느린 고령층의 인터넷 이용 실태를 사회경제적 특성에 따라 분석하는 것이다. 조사대상은 대구경북지역에 거주하고 있는 60세 이상의 고령층으로 한정하여 주로 1:1 설문조사를 통하여 자료를 수집하였다. 수집된 자료는 고령층의 성별, 최종학력, 경제상태, 건강상태, 종교유무, 그리고 생활만족이라는 사회경제적 특성으로 구분하여 이들의 인터넷 이용빈도, 이용동기, 활용능력 그리고 인터넷의 유용성 여부를 각각 분석하였다. 분석결과 다양한 사회경제적 특성에 따라 고령층의 인터넷 이용에 통계적 유의수준에서 차이가 발견되었다. 이 연구결과는 향후 정보화 사회로의 구현에서 소외될 수 있는 고령층의 정보격차 해소 혹은 노인복지 정책개발의 기초적인 자료로 사용되어 질 수 있을 것으로 기대한다.

• 대한지역사회영양학회지
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• 제8권1호
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• pp.15-25
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• 2003

This study was carried out to investigate the utilization status of internet and dietary information by gender (boys : 442, girls : 461) in school children (total 903). The results were summarized as follows. The most of children used internet regularly (98.1%) and major purpose of using were mentioned as 'game (39.0%)' and 'social intercourse (49.5%)'. The duration of internet use was '< 2hours (80.9%)' They used internet mainly at 'home (88.8%)', and favorite search engines were 'Yahoo (54.2%)' and 'Daum (31.1%)'. The searching experience on dietary information was from only 35.6% of subjects mainly 'for homework (39.6%)' and 'for health (36.9%)'. The satisfaction degree of searched information was 'high (79.5%)'. Dissatisfactory reasons of internet site for dietary information were pointed out to be 'bring little interest (28.9)', 'difficult contents (19.2%)', and 'poor Information (18.2%)'. Only fifteen % of subjects had experience of nutrition counseling using internet, and purpose of counseling was mainly 'for homework (51.4%)' and 'for health problem (24.3%)'. The problems for nutritional counseling site were pointed out to be 'difficult answer content (31.7%)', 'insincere answer (28.6%)'and 'poor answer content (25.4%)'. They acquire information of nutrition and health management mainly through 'internet (43.7%)'. 'Growth and nutrition (28.3%)', 'improvement in studying ability (13.8%)', 'right weight control (13.3%)' and 'cooking (12.8%)'were most frequently asked information, They had a preference for 'game (40.5%)', 'animation (29.9%)' and 'quiz (18.1%)'as loaming method tools. The favorite site color was 'green (51.3%)'The results of this study showed that although the internet use was very high, they used internet to search dietary information very seldom. Therefore, the information donor should find out what is the optimal tool, what kind of dietary information was needed for school children.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권2호
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• pp.522-541
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• 2016

Network virtualization provides an effective way to overcome the Internet ossification problem. As one of the main challenges in network virtualization, virtual network embedding refers to mapping multiple virtual networks onto a shared substrate network. However, existing heuristic embedding algorithms evaluate the embedding potential of the nodes simply by the product of different resource attributes, which would result in an unbalanced embedding. Furthermore, ignoring the hops of substrate paths that the virtual links would be mapped onto may restrict the ability of the substrate network to accept additional virtual network requests, and lead to low utilization rate of resource. In this paper, we introduce and extend five node attributes that quantify the embedding potential of the nodes from both the local and global views, and adopt the technique for order preference by similarity ideal solution (TOPSIS) to rank the nodes, aiming at balancing different node attributes to increase the utilization rate of resource. Moreover, we propose a novel two-stage virtual network embedding algorithm, which maps the virtual nodes onto the substrate nodes according to the node ranks, and adopts a shortest path-based algorithm to map the virtual links. Simulation results show that the new algorithm significantly increases the long-term average revenue, the long-term revenue to cost ratio and the acceptance ratio.

• 한국전자거래학회지
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• 제10권2호
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• pp.133-150
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• 2005

인터넷의 급속한 보급 및 확산은 국제무역에 있어 일대 혁신을 초래하고 있으며, 특히 해외시장조사, 해외홍보 및 마케팅, 거래선 발굴, 신용조사, 거래협상 등 계약체결까지 거래경로를 시간적 제약 및 공간적 제약 없이 신속하고, 정확하며, 적은 비용으로 글로벌 비즈니스를 수행할 수 있는 토대가 되고 있다. 본 연구는 비용절감, 시장업무 프로세스 혁신, 업무처리개선, 외부요구, 내부요청 등과 같은 주요 전자무역의 동기요인이 e-mail, 웹 서비스, EDI, Internet-EDI와 같은 전자무역을 위한 정보기술의 활용수준에 영향을 미치고 궁극적으로 국내 수출기업들의 기업성과 향상에 영향을 미친다는 것을 실증적으로 분석하였다. 또 본 연구는 동기요인이외에 기업이 인터넷을 통한 전자무역의 활용에 영향을 미칠 수 있는 환경요인, 기업특성 요인 및 산업특성 요인들을 함께 분석하였다. 실증분석 결과, 본 연구에서 제시한 요인들이 모두 유의한 영향을 미치는 것으로 조사되었다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권8호
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• pp.2241-2258
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• 2023

This study developed digital literacy instruments and tested their effectiveness on college students' perceptions of AI technologies. In creating a new digital literacy test tool, we reviewed the concept and scale of digital literacy based on previous studies that identified the characteristics and measurement of AI literacy. We developed 23 preliminary questions for our research instrument and used a quantitative approach to survey 318 undergraduates. After conducting exploratory and confirmatory factor analysis, we found that digital literacy in the age of AI had four ability sub-factors: critical understanding, artificial intelligence social impact recognition, artificial intelligence technology utilization, and ethical behavior. Then we tested the sub-factors' predictive powers on the perception of AI's usefulness and ease of use. The regression result shows that the most common powerful predictor of the usefulness and ease of use of AI technology was the ability to use AI technology. This finding implies that for college students, the ability to use various tools based on AI technology is an essential competency in the AI era.

• 가족자원경영과 정책
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• 제9권2호
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• pp.111-126
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• 2005

The purpose of the study was to find out some actual states qualities of consumers using of online mall users, as well as the factors that affect consumer satisfaction. A survey for this research was formed in order to find the consumer group between the ages of 20 and 30 who have experiences shopping online. From August 5th, 2002 to August 24th 2002, 424 were actually used tot this research The major results of the research were as follows. First, out of the people of the ages 20 to 30, the average age of people that actually purchase the online products was 27.7, and most were either office workers or students. Most of these people have purchased more than S products within a year, and won. Furthermore, $71.9\%$ of the payments were made using credit cards. The average days of using the Internet per week was 5.4 days, the average duration of utilization was 4 years, the average hours spent per day was 2 hours and 9 minutes, and the average time spent on searching information was 31 minutes per day. These peoples ability to put Internet to a practical use, their ability to use the information effectively, and the dangers of the Internet have received 3.66, 3.99, and 3.14 points out of the 5-point scale. In addition, the information search using the Internet received 3_44 points, and the consumer satisfaction received a fairly high score of 3.33 points. Second, the information searching factors involving the society and the Interact have showed efficiencies in people that received university education, people that purchase more than 3 products online per year, people that spend more than 100,000 won per year, and the people that make use of the Internet more often. Third, the customer satisfaction on Internet malls was greater in people that purchase more than 3 products, spend more than 100,000 won per year, make effective uses of the Internet, and Dow about the importance of the information search of the Internet. Fourth, the factors that affect customer satisfaction were the effectiveness of the Internet for searching information, the dangers of the Internet, and the hours spent on the Internet. The more uses of the Internet one makes, the less dangers one encounters, and the less one spends time on the internet, the higher ones customer satisfaction is was proven by this research.