• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.24-33
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• 2021

This study examined a semantic relationship expressed in college presidents' welcome greetings in order to explore the promotion strategies and future direction of universities in Daegu & Gyeongbuk provinces in South Korea. Greetings were collected from university websites as of September, 2020. According to word frequency analysis, "everyone," "welcome," and "visiting" were mostly used in the headlines. In the body texts, "college" and "education" were frequently paired. While the two- & three-year colleges focus on industrial and technical capabilities, four-year universities tend to emphasize educational excellence and academic research performance. This study is valuable in that it understands the direction that universities in Daegu and North Gyeongsang Province put forward amid the decreasing school-age population and the changing social environment.

• The Journal of the Korea Contents Association
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• v.21 no.6
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• pp.197-206
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• 2021

This study examined the networked structure and message types of newspapers advertisements in which universities have put in Daegu and Gyeongbuk provinces in Korea. Data were collected from July to September in 2020. As a result, universities preferred newspapers located in Daegu and Pohang areas. Next, universities have emphasized their cooperations with industries, basic competency capacities, and specialization programs in the advertising messages. When analyzing the findings in terms of university level, key words related to mid- to long-term development plans often appeared in the four-year schools. On the other hand, two or three-year universities frequently used an appeal that emphasized tangible performances. The findings showed the way in which the direction of university newspaper advertisements have been set in line with the rapidly changing environment.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.1153-1156
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• 2019

본 논문에서 제안하는 음주로 인한 사회 연결망 와해 방지를 위한 스마트 애플리케이션 '나 취했니?'는 과도한 음주 후 스마트폰 사용시 발생할 수 있는 사용자의 의도치 않은 실수를 예방하는 것을 목표로 한다. 가속도 변화, 터치 속도 및 오타 수 확인, 심박수 변화 등을 통하여 사용자의 데이터를 얻고 기계학습을 통해 사용자의 음주 여부를 판단한다. 이때, 음주를 한 것으로 판단되면 사용자가 설정해 두었던 애플리케이션들의 사용을 제한하게 된다. 또한 애플리케이션에 사용자가 음주를 한 날짜를 체크하는 자가진단 서비스 및 음주를 한 것으로 확인된 직후 GPS 를 이용해 사용자의 위치 및 이동 경로를 기록하여 스마트폰 내의 사고 뿐만 아니라 외부적인 사고에도 도움을 줄 수 있도록 구현하였다.

• The Journal of Society for e-Business Studies
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• v.13 no.4
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• pp.193-207
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• 2008

The study investigates the co-authorship networks of MIS Quarterly as one of the leading journals in IS field and examines patterns of collaboration networks of the intellectuals. These issues are addressed through a systematic Social Network Analysis (SNA) of 242 articles published from 1996 to 2004 in MIS Quarterly. Results of co-authorship network analysis indicate that the whole incomplete network has a low degree of density. Thus, we analyzed three biggest sub-networks to find out who the key players of each sub-network are. Then, following the keyword classification scheme, relevant data from the articles were collected and coded to analyze three major co-authorship networks of MIS Quarterly community. Some implications are drawn from different research keywords of each sub-network.

• Journal of Information Technology and Architecture
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• v.10 no.3
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• pp.347-359
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• 2013

The quality control of data is important element in data usage activations and decision makings. This paper is on how to extract the major critical data by each institution or organization selves. It proposes a social network analysis as a way to extract a table of high influence degree from a dynamic meta-data. The proposed CTQ data extraction method using SNA proved the fact that it is possible to extract highly accurate CTQ data by scientific measures of three-dimensional approach to real business situations without professional technicians. It is a new way that will change the goings on CTQ data management in IT sector and will improve the quality management level of an organization when applied to the real world.

• Journal of Digital Convergence
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• v.15 no.2
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• pp.115-120
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• 2017

Online reputation systems for social network services(SNS) aggregate users' feedback and estimate the reputation of contents or providers. The aim of this research is to enhance credibility of the online reputation system on the SNS based e-Commerce(we called it as social commerce). SNS users usually refer to evaluations from other users who bought the products before. Most social commerce sites provide reputation system to help their customer make a decision, but sometimes we can't believe the reputation because the reputation is too subjective and the seller can deceive the customer for sales promotion. Threrefore, we usually use just the average value to show the general customer's evaluation result. We applied collaborative filtering method to give more weighting to the users who have evaluated correctly in the past. As a result, we could get more accurate evaluation results by considering each customers' credibility value that was computed by collaborative filtering.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.05a
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• pp.511-514
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• 2019

인공지능이 정형화된 수치 데이터뿐만 아니라 비정형 데이터까지도 인식해야하는 시대가 왔다. 보안 분야 이외에도 사회 전반에서 숫자 인식을 활용하고 점차 확대되고 있다. 숫자인식을 위해 인공신경망을 이용하였다. 인공신경망은 입력 층, 중간 층, 출력 층으로 이루어져 있다. 각 층은 노드와 노드들을 연결하는 가중치로 구성되어 있다. data set을 입력 값으로 하여 각각의 가중치를 곱한다. 오차역전파법을 이용하여 가중치 값을 갱신한다. 갱신하는 과정에서 학습률과 가중치 조정을 통해 결과 값의 정확도를 연구한다. 궁극적으로 학습된 data set과 인공신경망 알고리즘을 이용하여 손 글씨로 된 숫자를 인식한다. 실험에서 학습률과 중간층의 노드 개수를 조정하여 인식률을 높여간다.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.1321-1329
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• 2009

Web technology has allowed the rise of services such as blogs or YouTube that make possible the sharing of opinions, perspectives, and experiences with other users through contents. Online services that promote such sharing of information and communication are known as social media. Recently, the explosive growth of these services displays the carry-over of the natural sociality that all humans possess as social creatures. This study took an exploratory approach in investigating what influential relationships are involved in forming new relationships through sharing and participation, as sharing and participation are core keywords of social media. In order to do this, relationship formations were observed in actual usage environments with the use of the diary study method and in-depth interviews. This study sought to deduce necessary elements in relationship formations and examine the influences of weak ties on participation and sharing.

• 정보화사회
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• s.121
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• pp.31-35
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• 1998

21세기를 눈앞에 둔 지금, 세계는 국가의 경제적 이익을 최우선으로 하는 경제전쟁의 시대에 있으며, 특히 선진 각국은 정보통신의 급격한 발전에 의해 도래하는 정보화 사회에서 주도적 입지를 굳히기 위해 바삐 움직이고 있다. 이러한 국제적.사회적 환경의 급격한 변화에 따라 국민들은 정부에 대한 행정의 수요 및 기대를 다양하게 표출하고 있으며, 정부도 국민에 대한 반응성이 높아지는 반면, 관료제의 영향력은 점차 감소되고 있다. 이러한 국민의 요구에 적극적으로 부응할 수 있는 수요중심의 행정을 펼치기 위해서는 정보통신기술을 전체 행정과정에 적극 도입.활용하는 행정정보화를 통해 정부의 생산성을 획기적으로 제고시키고, 공통의 정보통신기반 위에 하나로 연결된 각종 정부정보 및 서비스를 언제, 어디서나, 어떤 방법으로든, 신속히 제공할 수 있는 행정관리체계를 구축해야 한다. 이와 동시에, 정부의 업무와 조직의 혁신 등 제도적 개선이 병행될 때 비로소 경쟁력 있는 "작고 효율적인 정부"가 구현될 것이다. 본고에서는 현재 우리 나라의 행정정보 공동활용현황과 행정부문 정보화의 주무기관인 "정부전산정보관리소"에서 추진하고 있는 "정부고속망 사업"에 관해 논하고자 한다.

• The Journal of the Korea Contents Association
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• v.17 no.12
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• pp.49-63
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• 2017

Interdisciplinary convergence research is widely seen as a collaborative research between different disciplines, which is often driven by common agenda or problems in pursuit of a particular common objective. Thus, the purpose of interdisciplinary cooperation in convergence research is to bring each discipline's unique perspective together with the academic expertise of researchers in order to share common problems that cannot be solved effectively without research partnership. We present empirical evidence on how interdisciplinary research relationships are formed to facilitate research networking in convergence relations. In particular, we used network analysis to investigate how interdisciplinary linkages and convergence research networks has formed over time. We found that the convergence research networks were implemented by the interdisciplinary convergence research support program as intended. We did find that research field with high indegree and outdegree in a network played critical roles on the dynamics and degree of interdisciplinarity. Finally, we could find evidence that the role of liaison brokers triggered relational dynamics in interdisciplinary research collaboration.