• Journal of Digital Convergence
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• v.17 no.12
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• pp.23-34
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• 2019

The purpose of this study was to examine the relationship between the access level of digital information service and life satisfaction level of the middle and high-aged people and to analyze the Sequential Mediation Effects on online social engagement and online network activities. To this end, we analyzed the effects of multiple mediations on 1,491 seniors who responded to the 2018 digital information gap survey. The results of the study are as follows: First, this study confirmed that there is a statistically significant relationship between the access levels of digital information service and the life satisfaction. Second, the results showed that impact of digital information access level on life satisfaction among high-aged people was higher when they were engaged in both online social activities and online networking, rather than only involved in online social activities. Overall, this study comprehensively examined the relationship among the level of digital information access, life satisfaction, online social engagement, and online networking, which is meaningful in that it can be used as data for reconsideration of the digital information services and life satisfaction of the high-aged people.

• Journal of Information Management
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• v.37 no.2
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• pp.93-107
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• 2006

There are some questions about the way to monitoring the regional innovative activities in a specific field because of decision-making for raising regional specialized industry. Numerous studies have been conducted in the past using patent statistics to explain and compare the innovative capabilities of districts, regions and countries. The prior method of calculating the regional distribution of patent counts is to assign the patents to districts by assignee's address, which was not proper, in the case of larger firms's headquarters, holdings or subsidiaries, to mislead in geographical terms. So the regional distribution of patent was counted for a specific technology area, electric device field(H01 IPC classification), by inventors' residential addresses. Then the interregional structure was investigated by analysing the relations of co-inventors' regions by individual patent using a network analysis tool.

• Journal of Cadastre & Land InformatiX
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• v.50 no.2
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• pp.203-219
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• 2020

The primary purpose of this study is to identify spatial distribution patterns of co-authoring activities in Korean cadastral science. The analysis showed that a small number of researchers played an essential role in the Korean cadastral co-authorship network. In particular, some authors not only had a significant influence on other nodes in the network but also served as intermediaries between researchers. Moreover, the distance between researchers influenced co-authorship decisions to a limited extent. This study differs considerably from previous studies in that it used spatial analysis techniques to identify spatial distribution patterns of co-authoring activities. However, this research is limited in that it applied only 2019 data to determine the spatial distribution pattern of co-authoring activities. We can overcome this limitation if we analyze the spatial distribution patterns of co-authoring activities using multi-year data in future studies.

• Journal of the Economic Geographical Society of Korea
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• v.15 no.2
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• pp.147-165
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• 2012

Recently, the theory of open innovation emerges as a new innovation paradigm. This paper aims to examine open innovation activities of SMEs. Many firms tend to search new knowledge from various external sources and to pursue to achieve innovation resources or knowledge of external innovators. Particularly, this paper focus on the process of external knowledge networking and open innovation occurred in the process of technology innovation. The data used in this study were those that had been collected for total 3,400 sample SMEs that had conducted R&D. and in-depth interviews were conducted with 14 SMEs located at Chungbuk-Technopark. Empirical findings can be summarized as follows; SMEs tend to search new knowledge from various external sources and to pursue to achieve innovation resources or knowledge of external innovators, because they have lack of innovation resources. therefore, the conducting of open innovation affected positively the innovation performance of SMEs. In addition, empirical findings also indicated that expanding flexibility of labor market enhances open innovation activities of SMEs.

• Korean Journal of Family Social Work
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• no.53
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• pp.7-44
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• 2016

The purpose of this study was to find an appropriate approaches for successful aging adapt to Korean older women 's needs. For this purpose, this study did a comparative study between middle-aged and elderly women. Data from the third Korean longitudinal study of aging were analyzed by network analysis and statistical methods. The results were as follows. From network analysis, it was identified the participation difference of productive activities between middle-aged and elderly women according to level of education, subjective heath condition and residential area size. From the multiple regression analysis, voluntary activity, existence of spouse, residential area, family income and level of education significantly affected satisfaction of life quality in middle-aged women while family caregiving, age, religion, residential area, family income and level of education were significant in elderly women's satisfaction of life quality. Based on these results, it was suggested several implications to increase productive activities according to characteristics of Korean middle-aged and elderly women.

• Journal of Korea Technology Innovation Society
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• v.17 no.1
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• pp.242-263
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• 2014

Establishment of efficient cooperative ecosystem of research institutes is important for the efficiency of national innovation system, especially in the era of technology convergence. Performance of institutes inside the ecosystem is dependent on the position of the institutes in the system. This study investigates the relationship between network structure and research performance, and determines significant factors on the research performance. The results of 5 year panel data analysis of SCI journal papers of Korean government research institutes indicate that four network centralities -degree, betweenness, closeness, and eigenvector- and structural holes have significant effect on the research performance of the institutes. Among the four centralities, closeness and eigenvectors are more significant than others. Implications of the results of this study for policy of establishing efficient cooperative system are that increasing the cooperative activities of less active institutes is more effective for research performance than increasing the magnitude of cooperative activities of all institutes. Also, when an institute starts a new cooperative relationship, it is better to have relationship with an active institute first.

• Journal of Digital Convergence
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• v.13 no.12
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• pp.135-142
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• 2015

Appearance and rapid growth of the social network services (SNS) have led to changes in the distribution structure of information. Consumers can obtain various information quickly via the social network services and companies make use of a new advertising channel in them. In order to increase the effect of publicity activities through the social network services, development and application of public relations strategy by evaluating and analyzing the results of the activities is required. In this paper, a method for developing a low cost system to evaluate and analyze the results of public relations through the social networks is proposed. The proposed method was verified through building and running a demo system to collect and analyze data in the Facebook fan pages using MySQL database and PHP script on a Linux server.

• Journal of Digital Convergence
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• v.12 no.2
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• pp.11-25
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• 2014

The purpose of this study is analyzing the network of the National Assembly based on the bill data in 18th, 19th National Assembly lawmakers submit to Committees. By using bipartite projection we find out a strong committee and understand the relationship of committees. We focused on bills that ten or more of the legislators propose and compare between the first opposition party and the ruling party, which accounts for more than 80% of the overall structure of the National Assembly. We point out an influential legislator and committee in the network. This result presents which committees and lawmakers have a significant effect on process of legislation. This work gives a reasonable source as qualified to judge whether the committee and legislators group enact positively or not.

• Proceedings of the Korea Contents Association Conference
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• 2017.05a
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• pp.17-18
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• 2017

손쉽게 현 위치 정보를 공유하고 사용자 간 커뮤니케이션이 가능한 위치 기반 소셜 네트워크가 대중화되면서 장소 추천에 대한 연구가 활발히 진행되어 있다. 본 논문은 시간대별 사용자 선호도와 주요 활동 영역을 고려한 POI 추천 기법을 제안한다. 장소 카테고리별 사용자의 체크인(che-ck-in)정보를 시간대로 분할하여 시간에 따른 장소의 선호도를 판별하고 사용자의 과거 이력을 이용하여 사용자별 활동 영역을 선별한다. 장소의 선호도와 선별된 활동 영역에 기반하여 협업 필터링을 수행하여 POI를 추천한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.05a
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• pp.774-776
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• 2014

노령층의 증가로 인하여 독거 노인층이 점점 증가하고 있다. 독거 노인은 외부의 침입이나 갑작스런 건강상의 문제로 위험에 처해질 가능성이 매우 높다. 따라서 독거 노인의 의료복지에 대한 관심이 날로 증가하고 있다. 본 연구에서는 독거 노인의 의료 복지에 적용할 수 있는 활동량 모니터링 시스템을 개발하였다. 이 시스템은 저 전력으로 동작하는 지그비 임베드 네트워크와 DTMF(Dual Tone Multi Frequency) 전화 시스템으로 구성되어, U-Health 케어 개념으로 활동량과 혈압 등의 인체 정보를 일상 생활 속에서 병원 및 보호자에게 전송할 수 있다. 또한 본 연구 결과는 미래의 독거 노인 원격진료 시스템에 적용될 수 있다.