국외관광자의 국내여행사 선택속성요인에 미치는 영향에 관한 연구

김선겸(Kim, Sun-Kyum) 국제관광산업학회 2015 국제관광산업연구 Vol.8 No.2

The study purposes were pursued in a documentary study and an empirical one. In the documentary study, the theoretical base was set up through books, papers and data related to the factors that affect outbound tourists’ choice of a travel agency. ey were also referred to as standards and used to set the core factors and environment factors in choosing a travel agency. In the empirical study, a questionnaire was made up based on the choice attributes that derived from the documentary study and preliminary studies. The analysis results were as follows: The core factors that aect outbound tourists’ choice of a travel agency included goods factor, price factor, employee factor, and travel agency service factor. The relative importance of the core factors that affect a choice of a travel agency on the overall satisfaction was great in the order of goods factor, travel agency service factor, employee factor and price factor. at of the core factors on the will to use a travel agency again was great in the order of goods factor, employee factor, travel agency factor and price factor. And that of the core factors on the intention to recommend goods was great in the order of employee factor, goods factor, travel agency service factor, and price factor.

소셜 데이터의 주권과 투명성 및 신뢰성 확보를 위한 소셜 네트워크에서의 블록체인 활용방안 연구

김선겸(Sun-Kyum Kim) 한국디지털콘텐츠학회 2022 한국디지털콘텐츠학회논문지 Vol.23 No.10

Recently, social network services are difficult to check how the original owners data is being used, so it is processed secondarily or tertiarily without the original owners consent, so that the processor obtains economic benefits or the user cant confirm the fact due to the indiscriminate overflow of information. It is difficult to distinguish information that is not. In this study, as a way to apply block chain to social networks to solve this problem, Hyperledger fabric is used to collect friends and topical data analyzed from social networks, and consensus and verification within the topic-based community. We present a blockchain model that provides data with high transparency and reliability by securing data sovereignty and filtering rumors/false information/fake news by blocking data, and describes the implementation of its prototype. By developing a prototype using Hyperledger Fabric and IPFS, the potential of the system was confirmed.

부정 의문문에 나타난 화자의 태도 분석

김선겸 ( Sun Kyum Kim ),권순희 ( Soon Hee Kwon ) 국어교육학회 2005 國語敎育學硏究 Vol.24 No.-

국내 해양레저스포츠관광 활성화 방안에 관한 연구

김선겸(Kim, Sun-Kyum) 국제관광산업학회 2016 국제관광산업연구 Vol.9 No.1

This study placed priority to disclosing the entrepreneurial patterns and attributions based on management methods if what factors are uppermost considered when entrepreneurial selection of venture entrepreneurs to set subjection of research according to the independent stores and chain stores. It made inquiries into the difference based on the demographic characteristic of research objects, verication of survey tool’s validity and reliability, motive by foodservice-entrepreneurial methods, types of business and business conditions through hypothesis testing for the analytic results and discussion. In the result, this study showed that they make start a new enterprise with management ability, competitive item and their own idea by independent store compared to the result supported by the existing studies, which they decide on a new enterprise through well-recongnized and specialized preparatory process under the present crisis, stagnation and saturation of foodservice industry, given they are venture entrepreneurs contrary to the diversied result of existing sample. Accordingly, it is imperative to give a careful consideration of chain brand as well as approach types of business related ti preliminary experience and career for more stable management to start a new enterprise.

에코 델타 시티 초미세먼지 분석

김선겸(Sun-Kyum Kim),장봉주(Bong-Joo Jang),정인택(In Taek Jung) 한국정보과학회 2023 한국정보과학회 학술발표논문집 Vol.2023 No.6

소셜 네트워크 기반 크라우드 소싱 시스템에서의 블록체인 활용방안 연구

김선겸(Sun-Kyum Kim) 한국정보과학회 2021 한국정보과학회 학술발표논문집 Vol.2021 No.6

최근 소셜 네트워크 기반 크라우드 소싱 시스템에서 다양한 소셜 네트워크 서비스 플랫폼과 방대한 데이터 양으로 인해 각각의 정보의 출처가 명확하지 않은 정보를 무분별하게 공유하는 문제가 발생하고 있다. 또한 비용 지불에 있어서도 요청자와 작업자 사이에 데이터 수신을 하지 않았다고 거짓말을 하여 시스템 전체가 신뢰성이 떨어지는 문제가 발생한다. 최근 새롭게 등장한 블록체인 기술은 이러한 문제를 해결하기 위해 솔루션을 제시하고 있다. 본 연구에서는 블록체인을 활용하여 크라우드 소싱 기반의 개별 소셜 네트워크 플랫폼의 API로부터 소셜 데이터를 수집하고 해당 데이터를 주제별로 분류하며, 검증을 통해 데이터를 블록화 및 이를 활용하여 비용을 지불함으로써 데이터 주권 확보와 데이터 제공의 신뢰성을 높이는 시스템을 제안한다.

동시출현단어 분석을 활용한 비탈면 붕괴 예측 및 분석 연구에 관한 지적구조 분석

김선겸 ( Sun-kyum Kim ),김승현 ( Seung-hyun Kim ) 대한지질공학회 2021 지질공학 Vol.31 No.3

최근 드론 및 빅데이터, 인공지능 등 디지털 기술을 활용한 비탈면 연구를 수행하고 있으나 다소 미흡한 실정이며, 여전히 비탈면 붕괴 대비에 취약하다. 이러한 이유로 비탈면 붕괴에 효과적으로 대처하기 위해 디지털 기술을 활용한 비탈면 붕괴 예측 및 분석 연구에 대한 발전방향을 제시하는 것이 필연적이며, 이를 위해 비탈면 붕괴 예측 및 분석에 관한 이해가 선제되어야 한다. 본 연구는 비탈면 붕괴 예측 및 분석 연구의 지적구조를 규명하여 연구방향을 제시하기 위해 2016년 1월 1일부터 2020년 12월 31일까지의 5년간의 Web of Science 기반으로 문헌 데이터를 수집하고 이를 동시출현단어를 활용하여 분석하였다. 네트워크 분석을 통하여 세부 주제 영역을 밝히고, 키워드 간의 지적 관계를 시각화하여 관계, 중심성 분석을 통한 전역 및 지역 중심성이 높은 키워드를 도출하였다. 또한 군집분석을 실시하여 형성된 군집을 다차원축적지도에 표시하였으며, 각 키워드들 간의 상관관계에 따른 지적구조를 제시하였다. 이러한 연구의 결과는 비탈면 붕괴 분석 및 예측 연구의 지적구조를 밝히고, 향후 연구 방향을 찾는데 도움이 될 것으로 기대한다. Although it is currently conducting slope management and research using digital technologies such as drones, big data, and artificial intelligence, it is still somewhat insufficient and is still vulnerable to slope failure. For this reason, it is inevitable to present the development direction for research on prediction and analysis of slope failure using the digital technologies to effectively deal with slope failure, which requires a preemptive understanding of prediction and analysis of slope failure. In this paper, we collected literature data based on the Web of Science for five years from January 1, 2016 to December 31, 2020 and analyzed by co-word analysis to identify the domain structure of research on prediction and analysis of slope failure. Detailed subject areas were identified through network analysis, and the domain relationships between keywords were visualized to derive global and regionally oriented keywords through relationship, centrality analysis. In addition, the clusters formed by performing cluster analysis were displayed on the multidimensional scailing map, and the domain structure according to the correlation between each keyword was presented. The results of this study reveal the domain structure of research on prediction and analysis of slope failure, and are expected to be usefully used to find future research directions.

다분상관계수를 활용한 비탈면 데이터 요소간 관계 분석

김선겸(Kim, Sun-Kyum),김승현(Kim, Seung-Hyun) 대한토목학회 2023 대한토목학회 학술대회 Vol.2023 No.10

모바일 P2P환경에서 시간대별 에너지 상태를 고려한 슈퍼 피어 시스템

김선겸(Sun-Kyum Kim),이광조(Kwang-Jo Lee),양성봉(Sung-Bong Yang) 한국정보기술학회 2011 한국정보기술학회논문지 Vol.9 No.2

Recently, among P2P(Peer-to-Peer) systems in MANET(Mobile Ad-hoc Network), double-layered super-peer systems that consist of super peers in the upper layer, sub-peers in the lower layer reduced network traffic successfully. Among double-layered super-peer systems, there are the MOB system considers the mobility of peers, the Energy system considers the energy of peers, and the Hybrid system considers both mobility and energy for selecting super peers during the network configurations. In the real mobile environments, the energy status of each peer varies during one day period, due to its initial energy and the usage of device. Generally the energy status of each peer is full in the morning, while it has a half of its initial energy in the evening. In this paper, we find the optimal ratios of mobility to energy for the Hybrid system during one day period; morning, afternoon, and evening.

FAIR 지원을 위한 블록체인 기반의 학술정보공유시스템

김선겸(Sun-Kyum Kim),최동훈(Dong-Hoon-Choi),서태설(Tae-Sul Seo) 한국디지털콘텐츠학회 2021 한국디지털콘텐츠학회논문지 Vol.22 No.9

Recently, scholarly information sharing contributes to nation-wide information distribution by changes in scholarly communication on advances in technology and open access. Exploiting the scholarly information depends on findability, accessability, interoperability and reusability. For this purpose, FAIR principles has been established in Europe. A blockchain is a forgery prevention technology based on distributed computing. When a transaction is generated, it propagates to a large number of nodes dispersed in the blockchain network, thereby solving the trust problem between traders. In this paper, we present a blockchain-based scholarly information sharing model to support FAIR and describe its prototype implemented on Hyperledger Fabric.