• 한국산업정보학회논문지
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• 제10권4호
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• pp.97-109
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• 2005

본 연구는 메타 분석적 방법론을 통해 최근 국내에서 소개된 인터넷 쇼핑몰에서의 고객 신뢰에 관한 연구를 종합적으로 분석한다. 이를 위해 기존 연구의 흐름을 조사하고, 메타 분석적 절차에 따른 연구 방법을 적용한다. 분석 결과, 신뢰의 원인변수와 결과변수 대부분에 대한 통계적 유의성이 통합적으로 입증되었다. 아울러 해당 분야에 대한 실증연구가 아직도 더 많이 필요한 것으로 드러났다.

• 부모자녀건강학회지
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• 제21권1호
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• pp.50-60
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• 2018

Purpose: This study is a systematic literature review and meta-analysis study conducted to identify the effects of breastfeeding intervention program on premature infants by integrating and analyzing the results of randomized controlled trials and non-randomized trials. Methods: The literature review process was based on the PRISMA (Preference Reporting Items for Systematic Reviews and Meta-Analyzes) guideline. Data retrieval and collection were conducted from May 25 to May 30, 2018, and the articles analyzed were all domestic papers retrieved from the database. Two reviewers independently select the studies and assessed methodological risk of bias of studies using the Cochrane criteria. The topics of breastfeeding interventions were analyzed using descriptive analysis and the effects of intervention were meta-analyzed using the R program. Results: Finally, eight papers were included in the systematic review and meta-analysis. The breastfeeding intervention program for premature infants showed a significant increase in the self-efficacy and the amount of pumping and baby's hight. Conclusion: This study has some limitations due to the few randomized controlled trials and non-randomized trials comparing breastfeeding for premature babies in Korea. Therefore, it needs to be integrated with the research conducted in other countries.

• 수산경영론집
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• 제38권2호
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• pp.1-24
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• 2007

The improvement and richness of research in a particular domain are fundamentally based on their own various research topics and scientific or systematic research methodology. Especially considering fisheries business administration as a branch of business administration, the interdisciplinary concept will be a important factor in the research of fisheries business administration. This study analyzes fisheries business administration research through bibliometric analysis and meta-analysis to examine meta-data including research trends, researcher characteristics, and keywords. The 225 source articles are all papers published from 1990 to 2006 in the Journal of Fisheries Business Administration Society of Korea. Comparing previous research from the 80s, the major areas of Korean fisheries business administration research have changed and the rate of co-researched papers has also increased. In keyword-based meta-analysis, the topics of recent research are well balanced and diversified but some structural and editorial problems still remain. The result from meta-data and bibliometric information gathered in this study will help create guidelines for carrying out further rigorous research and enhancing the quality of research in fisheries business administration.

• Industrial Engineering and Management Systems
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• 제11권3호
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• pp.288-298
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• 2012

Lot sizing and shipment scheduling are two interrelated decisions made by a manufacturing plant and a third-party logistics distribution center. This paper analyzes a dynamic inbound ordering problem and shipment problem with a freight container cost, in which the order size of multiple products and single container type are simultaneously considered. In the problem, each ordered product placed in a period is immediately shipped by some freight containers in the period, and the total freight cost is proportional to the number of containers employed. It is assumed that the load size of each product is equal and backlogging is not allowed. The objective of this study is to simultaneously determine the lot-sizes and the shipment schedule that minimize the total costs, which consist of production cost, inventory holding cost, and freight cost. Because the problem is NP-hard, we propose three meta-heuristic algorithms: a simulated annealing algorithm, a genetic algorithm, and a new population-based evolutionary meta-heuristic called self-evolution algorithm. The performance of the meta-heuristic algorithms is compared with a local search heuristic proposed by the previous paper in terms of the average deviation from the optimal solution in small size problems and the average deviation from the best one among the replications of the meta-heuristic algorithms in large size problems.

• 디지털콘텐츠학회 논문지
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• 제8권2호
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• pp.129-139
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• 2007

과거의 인터랙티브 아트는 과학자들과 예술가들의 학제간의 연구를 통해 조금씩 시도되었다. 디지털 시대를 맞이하면서, 디지털기술을 사용한 예술방식이 점차 늘어가고 있으며 다양한 방식으로 다른 매체들과 결합하고 있다. 본 논문은 $\ulcorner$메타 사계절$\lrcorner$에서 관람자와 인터랙티브 아트 사이에서 어떻게 관람자가 독자적 관람 경로의 선택이 인터랙션을 높이는지에 대해 분석하였다. 관람자 개개인이 선택할 수 있는 관람경로가 누구와도 같지 않은 독자성을 가진다. 이 독자적인 관람경로는 각 관람자가 개인적인 상호작용성을 가지는 위치에 있게 만들고 그들은 인터랙티브 아트 인터페이스의 몰입을 통해 다양한 경험을 느끼게 된다.

• 한국IT서비스학회지
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• 제16권4호
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• pp.15-31
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• 2017

This study analyzes 45 Korea IT service companies from 2012 to 2016 using DEA analysis. Large enterprises, medium enterprises and small and medium enterprises (SMEs). CCR model and BCC model were used for efficiency analysis. Among the various analytical objects, the decision objects which yield the maximum output with minimum input are compared with other analysis objects. The relative inefficiency was measured through this, and Technical Efficiency (TE), Pure Technology Efficiency (PTE), Scale Efficiency (SE), scale profit, reference frequency were analyzed. Also, we analyzed the Technology Gap Ratio (TGR), which is the distance between production function and Meta-Frontier for each firm, using Meta-Frontier analysis. Finally, the Tobit model is used to analyze the sources of efficiency and inefficiency. The inputs are assets, capital, and employees, and the output factor is sales. The analysis shows that large firms are achieving technological achievements more efficiently than small and medium enterprises. As a result, medium-sized enterprises and SMEs can improve efficiency overall through efficient operation of workforce and appropriate combination of inputs such as assets and capital. Also, as a result of the influence factor analysis, it was found that the ratio of the managed asset ratio and the management cost ratio were significant factors influencing the efficiency of the IT service companies. This study suggests the efficiency analysis using DEA for many Korea IT service companies. Inefficient parts of each company are classified according to size and technology. Also, we identify the most efficient companies and analyze the causes of those companies whose profits are lower than their size.

• 한국산학기술학회논문지
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• 제16권11호
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• pp.7564-7574
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• 2015

본 연구는 지난 15년간의' 사회복지사의 이직의도'와 관련된 논문을 바탕으로 이직의도 억제 변인들의 효과크기를 메타분석을 통해 검증하고, 메타회귀분석을 통해 출판연도에 따른 변화추이를 검증하므로 이직억제를 위한 정책방안과 후속 연구의 연구방향을 제시하고자 하였다. 연구결과 억제변인에 대한 전체효과크기는 중간효과크기로 나타났다. 변인군 별 하부 변인의 효과크기는 개인특성변인군이 급여수준, 연령과 결혼여부, 근무기간, 이직경험, 학력수준, 근무형태 순으로 나타났으며, 직무특성변인군은 직무만족, 근무환경, 직무중요성, 상사와 동료관계, 직무자율성 순으로 나타났다. 또한 조직특성변인군 효과크기는 조직몰입, 조직헌신, 승진기회, 보상만족, 조직 내 공정성, 참여적 의사결정 순으로 나타났다. 출판연도에 따른 변화추이는 2015년도에 가까울수록 억제변인들의 효과크기가 낮아지는 것으로 나타났다.

• 한국의류학회지
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• 제37권3호
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• pp.386-398
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• 2013

This study analyzes the effect of clothing involvement using meta-analysis. Metal-analysis (the analysis of analyses) is widely used in various academic areas to integrate individual empirical studies and generalize the knowledge of a specific research field. Previous studies regarding clothing involvement published since 1990 were researched from the KISS database using clothing involvement and fashion involvement as a keyword; subsequently, 127 articles were identified. Studies that had insufficient statistics or included clothing involvement as a moderating (or intervening variable) were eliminated; subsequently, 36 articles provided a total of 75 data sets that were used for the final analysis. Dependent variables were grouped into 10 categories to compare the differences between high and low involvement groups. The effect size of clothing involvement was large in non-personal information source; however, it was small in utility, brand royalty and quality. In the 7 categories of relational studies that showed homogeneity, the relation size regarding conformity was smaller than the personal information source.

• International Journal of Contents
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• 제13권4호
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• pp.47-62
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• 2017

This paper analyzes how much the gap existed between the public group and expert group using future issues and future core technologies that are announced in government institutions based on ontology. We calculated gap with two groups' point of view, one is expert groups' ideas that are based on future hopeful technologies documents, and another is public people ideas that are based on documents of contest that is hosted by 'Ministry of Science, ICT and Future Planning (MSIP)', and 'Institute for Information & communications Technology Promotion (IITP)'. For calculating these, we suggested SDGM model. In the case of ETRI Meta-trend ICT Field, there is a little gap between expert group and public group, and another case that is XT (ETRI determined future technologies excluding ICT field) Field, the gap is increasing annually. Moreover, in the case of all ETRI Meta trend, the gap is bigger than ICT and XT field. We analyzed, also, KEIT's future issues for generalizing this model. The gap existed between two groups. Utilizing SDGM model of this paper, people can interpret easily how much the gap exists between future technologies and issues that are announced in institutions.

• 융합보안논문지
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• 제22권3호
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• pp.19-24
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• 2022

메타버스는 '가상', '초월' 등을 뜻하는 영어 단어 '메타'(Meta)와 우주를 뜻하는 '유니버스'(Universe)의 합성어로, 현실세계와 같은 사회·경제·문화 활동이 이뤄지는 3차원의 가상세계를 가리킨다. 메타버스는 가상현실(VR, 컴퓨터로 만들어 놓은 가상의 세계에서 사람이 실제와 같은 체험을 할 수 있도록 하는 최첨단 기술)보다 한 단계 더 진화한 개념으로, 아바타를 활용해 단지 게임이나 가상현실을 즐기는 데 그치지 않고 실제 현실과 같은 사회·문화적 활동을 할 수 있다는 특징이 있다. 하지만, 이에 대한 보안 이슈가 많아 발생하고 있어 사이버보안 안전성 여부를 확인할 필요가 있다. 본 논문은 메타버스 환경에서 발생할 수 있는 사이버보안의 위협과 취약점을 분석하여 안전성을 확인 한다.