• 한국의류산업학회지
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• 제7권1호
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• pp.4-12
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• 2005

The purpose of this study was to analyze the utilization of Fashion Brands Web-site. This analysis was done by 6C Concept(Contents, Community, Commerce, Connection, Customizing, Communication) which was Internet Marketing Strategy. The review of previous studies and empirical investigations through the Internet were processed for this study. 151 fashion brands in department stores in Daegu, Korea were surveyed from January to February 2004. Data were analyzed by using frequency and percentage. Total 105 brands established their Web-Sites of Internet out of 151(69.5%) fashion brands. There were four characters on Contents, six characters on Connection and five characters on Communication. And there were a establishing rate of 38.1 percent on Online Community and 30.5 percent on Online Shopping Mall. On Customizing, 73.3 percent of brands had e-CRM systems.

• 사물인터넷융복합논문지
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• 제10권2호
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• pp.137-148
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• 2024

본 연구의 목적은 리테일테크의 기술활용이 소비자의 구매의도에 어떠한 영향이 있는지를 규명하는 것이다. 더욱이 이러한 영향관계에서 기술 유용성과 용이성의 매개효과를 규명하고, 체험마케팅이 소비자의 구매의도를 조절하는지를 규명하는 것이다. 연구방법은 2023년 8월 1일 부터 2023년 9월 30일까지 설문조사를 실시하였고, 총257명이 연구에 참여하였다. 통계분석은 가설 검증을 위해 위계적 회귀분석, 3단계 매개회귀분석, 위계적 3단계 조절회귀분석을 실시하였다. 연구결과는 다음과 같다. 첫째, 리테일테크 기술 활용에서 빅데이터·AI 활용, 모바일·SNS 활용, 라이브커머스 활용, 사물인터넷 활용이 구매의도에 미치는 것으로 확인되었다. 둘째, 기술 유용성은 사물인터넷 활용, 모바일·SNS 활용, 빅데이터·AI 활용에서 매개효과가 확인되었다. 셋째, 기술 용이성은 사물인터넷 활용, 모바일·SNS 활용, 라이브커머스 활용, 빅데이터·AI 활용 매개효과가 확인되었다. 넷째, 일탈적 체험은 모바일·SNS 활용, 라이브커머스 활용에서 조절효과가 확인되었다. 다섯째, 심미적 체험은 모바일·SNS 활용, 빅데이터·AI 활용에서 조절효과가 확인되었다. 이러한 연구를 통하여 국내 유통산업이 글로벌 시장에 진출하는데 있어 신기술을 활용하여 기업의 경쟁우위를 확보하여 국가 경쟁력에 기여하길 기대한다.

• 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.

• 보건교육건강증진학회지
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• 제21권1호
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• pp.85-102
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• 2004

The purpose of this study was to examine the utilization of Internet health information sites by undergraduates at colleges related to public health. A self-administered questionnaire survey was carried out by 2,400 student from university and colleges in Taegu and Kyongsangbuk-do area from March 11, 2002 to March 31, 2002. 58.8% of the subjects responded that once connected rate of health information sites on the internet for year. In the connection rate of health information sites on the internet, the low class($\leq$300%), the middle class(40-70%), and the high class(80%$\leq$) accounted for 89.8%, 9.0%, and 1.2%, respectively. A ranking of internet health information sites, diseases are ranked frist and exercise is ranked second and obesity is ranked third. The motives Students submit reports 36.1% and obtained knowledge 22.8%. Sufficiency of health information sites on the internet, sufficient 19.6%, common 56.3%, and insufficient 24.1%, Satisfaction of health information, satisfied 18.4%, common 63.1%, and dissatisfied 18.4%. With regards to the health behavior of the subjects that contacted Internet health information sites, the nonsmoking rate was 86.2%, the nondrinking rate was 28.9%, the rate of exercise practice was 22.6%, the rate of normal sleep was 66.3%, the rate of eating breakfast was 37.1%, the rate of not eating between meals was 4.8%, and the standard BMI was 14.3%. With regards to the health behavior of the subjects that had not contacted Internet health information sites, the nonsmoking rate was 84.9%, the nondrinking rate was 26.0%, the rate of exercise practice was 18.5%, the rate of normal sleep was 72.1%, the rate of eating breakfast was 34.3%, the rate of not eating between meals was 5.0%, and the standard BMI was 17.0%. In the frequency of health behavior, the subjects with the Breslow Index of 0-3, 4-5 and 6-7 accounted for 80.9%, 18.8%, and 0.2%, respectively. The average score of health behavior was 2.80 out of 7. In conclusion, Internet health information sites are required for students to understand proper, reliable, interesting information and there is a need to develop simple criteria that the general public can understand and utilize.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제9권4호
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• pp.1302-1320
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• 2015

In cloud, everything can be provided as a service wherein a large number of users submit their jobs and wait for their services. hus, scheduling plays major role for providing the resources efficiently to the submitted jobs. The brainwave of the proposed ork is to improve user satisfaction, to balance the load efficiently and to bolster the resource utilization. Hence, this paper roposes an Adaptive Multilevel Scheduling System (AMSS) which will process the jobs in a multileveled fashion. The first level ontains Preprocessing Jobs with Multi-Criteria (PJMC) which will preprocess the jobs to elevate the user satisfaction and to itigate the jobs violation. In the second level, a Deadline Based Dynamic Priority Scheduler (DBDPS) is proposed which will ynamically prioritize the jobs for evading starvation. At the third level, Contest Mapping Jobs with Virtual Machine (CMJVM) is roposed that will map the job to suitable Virtual Machine (VM). In the last level, VM Scheduler is introduced in the two-tier VM rchitecture that will efficiently schedule the jobs and increase the resource utilization. These contributions will mitigate job iolations, avoid starvation, increase throughput and maximize resource utilization. Experimental results show that the performance f AMSS is better than other algorithms.

• 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.

• 기술사
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• 제30권2호
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• pp.20-35
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• 1997

At present Internet, a huge network connecting many computers in the world, has become a major boom to business. It seems to change not only telecommunications, but also changes the business world. It was utilized by a maximum of about 1,000,000 at the end of the 1980's. This figure has increased dramatically to approximately 40,000,000 at present. This enormous increase has been from two reasons. One is that an open door for businesses begun in 1990. This fact called to account a new interest of many enterprises looking to expand their business through Internet. Prior to that Internet was confined to academic utilization and not used for business purposes. The other reson is that a method was developed where desired information could be easily searched. This article describes the fundamentals of Internet so that one should know the history of Internet and the connection method to use it in practice in Korea. The splendor of Internet cannot be understood until it is tested In practice. The readers are strongly urged to participate in the Internet.

• 정보처리학회논문지C
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• 제13C권2호
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• pp.203-210
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• 2006

실시간 멀티미디어 응용의 서비스 품질을 보장하는 공평 패킷 스케줄링 알고리즘은 타임스탬프 계산시 사용되는 패킷의 기준시각 측면에서 종료시각 방식과 시작시각 방식으로 나뉜다. 전자는 트래픽 흐름의 예약속도 조정으로 원하는 레이턴시(latency) 값을 얻을 수 있어 IETF (Internet Engineering Task Force) 종합서비스 모델의 품질보장 라우터에 적용되었으나 인터넷 전화와 같이 흐름 속도가 낮지만 우수한 지연특성을 요구하는 트래픽의 경우 심각한 대역폭 손실이 발생하는 문제가 있다. 본 논문에서는 시작시각 방식을 품질보장 라우터에 적용하는 방안을 모색하기 위해 대역폭 및 페이로드(payload) 이용도 측면에서 두 가지 공평 패킷 스케줄링 방식의 성능특성을 비교 분석하였다. 분석결과 대역폭 이용도 측면에서 시작시각 방식이 우수하다는 것이 증명되었고, 모의실험결과 시작시각 방식이 최대 20%까지 높은 페이로드 이용도를 보였다.

• 사물인터넷융복합논문지
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• 제6권4호
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• pp.39-48
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• 2020

본 연구는 한국 노인장기요양 서비스 이용 상태의 결정요인과 상태 의존성을 파악하고자 하였다. 이를 위해 한국복지패널 자료를 이용하여 시간이 지남에 따른 서비스 이용 상태간 전환 패턴을 랜덤효과 다항로짓 모형을 이용하여 분석하였다. 그 결과 노인장기요양 서비스 이용 상태에 있어 강한 상태 의존성을 확인하였다. 특히 초기 상태에서 노인장기요양보험 이용자는 상태가 지속되는 경향이 강한 것으로 나타났다. 개인의 인구통계학적 특성 중 연령이 높을 수록 노인장기요양보험 이용 상태일 확률이 높아지는 반면 혼인상태에 있는 경우 유의하게 낮았다. 거주지역 경우 도농 복합군 거주자는 준거지역에 비해 노인장기요양보험 이용 상태일 확률이 유의하게 높아지는 것으로 나타났다. 본 연구의 결과 노인장기요양 서비스 이용자가 강한 상태 의존성을 가진다는 사실은 향후 수요예측에 있어 기존 이용자의 이용 기간 증가도 충분히 고려하는 것이 중요함을 시사한다.

• 한국산업정보학회논문지
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• 제4권4호
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• pp.15-24
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• 1999

급변하는 시장 경제체제에서 많은 기업들은 경쟁력 유지를 위하여 ERP시스템을 도입 구축하고 있다. 그러나 이들이 구축하여 활용하고 있는 ERP 정보는 그 활용범위가 기업 내에 국한되어 효율성이 떨어진다. 본 논문에서는 클라이언트/서버 환경에서 개발 운용되고 있는 ERP 시스템 구성과 인터넷 적용을 위한 구성요소 및 플랫폼에 대해 비교하고 인터넷환경에서 기업의 판매정보 및 고객정보, 생산능력정보, 재무구조 등을 활용함으로써 영업력 강화와 고객에 대한 신뢰도 향상의 새로운 부가가치 창출을 위한 인터넷활용의 전략적 방안을 제안하였다.