• Proceedings of the Korean Society of Computer Information Conference
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• 2011.01a
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• pp.117-120
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• 2011

최근의 디지털 기술 및 컴퓨터, 통신 기술의 개발과 확산을 통해 다양한 소셜 미디어의 사용에 따른 디지털 사회가 생성되고 디지털 지능이 출현하여 새로운 디지털 문화와 커뮤니티가 생겨나고 있다. 이러한 추세에 따라 산업체, 교육계 등에서 소셜 미디어의 사용 및 채택 효과에 대한 연구가 필요하다. 또한, 소셜 도구의 사용 기법과 활용 방안이 필요하며, 사용 실태에 대한 조사가 필요하다. 이에 따라, 이 논문에서는 소셜 미디어를 개인 및 회사의 업무에 사용할 수 있는 있는 활용 방안을 마련하기 위하여, 소셜 미디어의 참여와 접근 방안 등에 대한 방법론을 조사하고 제시한다. 소셜 미디어에 접근하고 활용하기 위하여 웹 로그 분석 도구 및 소셜 미디어 콘텐츠 도구 등에 대하여 살펴보고, 웹 사이트 분석과 활용 방안 마련을 위하여 소셜 미디어 메트릭스 활용 방안을 제시한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.381-384
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• 2022

이 연구의 목적은 에너지신산업 분야 디지털 혁신공유대학 온라인 교육과정을 수강한 학생들을 대상으로 교육과정에 대한 만족도 및 인식을 조사하고, 학습자의 수업만족도와 핵심역량 간의 관계를 분석하는 것이다. 이러한 목적을 달성하기 위하여 에너지신산업 분야 디지털 혁신공유대학 교육과정을 수강한 학생들의 교육과정 만족도 조사 결과를 양적, 질적 방법으로 분석하고, 분석 결과를 토대로 혁신공유대학 교육과정 설계 및 개발 방향과 시사점을 제시하였다. 이 연구 결과는 향후 디지털 혁신공유대학 교육과정 질 관리 환류 체계를 마련하고, 지속적인 교육과정 질 관리 시스템 구축을 위한 토대가 될 것으로 기대한다.

• Journal of the Korean Society of Radiology
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• v.9 no.7
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• pp.535-540
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• 2015

Collimator has important functions with control primary X-ray that decrease radiation exposure dose for patients and reduce scatter ray and make better quality of image. But there are no regulations for X-ray mammography device of collimator, so widely used device adopt rectangularly controlled collimator. Though digital X-ray mammography device expand supply recently, rectangularly controlled collimator of film/screen mode still used. After searching for real condition of beam field with digital mammography, we made a multi-leaf collimator which is able to adjust the beam field in accordance with size and shape of breast, and we measuring up the transitions of image quality, average glandular dose(AGD) and, Dose area product(DAP). There are no significant differences between rectangularly controlled collimator and multi-leaf collimator, and DAP value decreased by 50.72%. As conclusion, there needs to expand the use of multi-leaf collimator for optimum adoption of beam field in digital mammography, and also need to develop an automatic regulation of beam field for reduce of exposure dose to patients.

• Journal of the Korean Society for Library and Information Science
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• v.44 no.4
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• pp.413-433
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• 2010

The purpose of this study is to portray the current condition of digital reading rooms in public libraries in specific terms of information resource constituencies. With the growth in numbers of public libraries in Korea, emphasis was also put on digital information services using digital reading rooms in public libraries. However, it is also recognized that these digital reading rooms are merely traditional reading rooms with equipment. In this regard, the objective for the study was to identify and describe the types of electronic information resources in order to determine the rationale for the development of digital information resource management in public libraries. The focus was especially put on investigating the quality and the degree of perceived importance of electronic resources. Data for this case study was collected from four relatively big public libraries in three cities. The investigation was conducted by the document reviews and surveys and interviews with librarians and patrons. The study found that digital resource management should be put on a new stage, especially in terms of education and reliable information for the regional community. The study also added some suggestions for the future development and refinement of electronic resource management in public libraries.

• Journal of Digital Convergence
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• v.15 no.7
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• pp.27-39
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• 2017

To grasp the current status of smart campus and look for future directions, this study investigated the usage rate and perceived usefulness of digital devices and services by conducting online survey of 580 university students. The main results are as follows. First, smartphones have the highest ownership rate, followed by laptops, desktops, and digital cameras. Purchase intention of virtual reality devices is highest followed by smart watches/bands, and tablets. Second, mobilization in campus life is almost realized, however the usage of desktops is still high in education and administration context. Digital devices have been perceived particularly useful when searching and sharing information. Third, students use digital services such as search engines, messengers, and online libraries in their learning, and they use messengers, music and video services in their lives. Service usage rate and perceived usefulness are not proportional.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.189-191
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• 2022

In modern society, messenger services are necessary to communication with others, and criminals are no exception. In representative cases of Burning Sun Gate(2018) and NthRoom(2019), messenger data analysis was used as a smoking gun to solve these criminal cases. Therefore messenger text analytics is critical for the resolution of crimes in a modern environment. also, it takes a lot of time to analyze messenger data in the digital forensic investigation process, so researchers in text mining need to be more effective to respond with the current situation In this paper, we study various natural language preprocessing(NLP) methods according to the characteristics of instant messages to effectively proceed with NLP analysis on instant messengers.

• Journal of The Korean Association of Information Education
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• v.19 no.4
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• pp.431-440
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• 2015

The purpose of this study is to analyze the influence of digital textbook use for potential risk group of internet addiction and average group. For this, I selected two samples. One was a group to use digital textbook at school, the other was a group not to use that. Then each potential risk group of internet addiction were sort out in two groups by a test of internet addiction. I firstly compared a average user group and a potential risk group of internet addiction in group to use digital textbook. Also, I too did that in group not to use digital textbook. Then I analyzed the relevance of using digital textbook and internet addiction. As a result, I found that using digital textbook have not the relevance with internet addiction. But in this paper, I proposed a way to teach ICT ethical training before students use the digital textbook, because most of potential risk students of internet addiction tend to think they was influenced by digital textbook.

• 한국벤처창업학회:학술대회논문집
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• 2022.04a
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• pp.45-49
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• 2022

코로나-19는 4차 산업혁명은 산업 전 분야의 디지털 전환을 가속화할 것으로 전망된다. 이러한 시장환경에서 유연하게 변화하거나 새롭게 창출하지 못하면 빠르게 도태되어 실패에 이를 수 있다. 이러한 분위기에서 창업기업의 생존과 성장할 수 있도록 창업자와 창업기업 구성원들의 디지털역량을 높이기 위한 다양한 노력들이 지속되고 있다. 본 연구의 목적 역시 창업기업 CEO의 기업가 정신이 창업성과와 어떠한 상관관계를 가지고 있는가를 조사하고 시장의 변화 대응하기 위한 디지털역량이 매개역할을 하는지에 대해 분석 하는데 있다. 본 연구에서는 창업기업 CEP의 기업가정신이 기업의 창업성과에 미치는 영향에 관한 연구를 디지털역량의 매개효과를 중심으로 진행하고자 한다. 따라서 본 연구에서는 CEO의 기업가정신이 창업기업의 디지털역량을 증진하고, 디지털역량이 창업성과에 미칠 것이라는 인과적 경로를 검증하고자 한다. 4차 산업혁명에 따른 변화에 따라 창업가를 대상으로 기업가정신, 디지털역량, 창업성과를 분석함으로 써, 창업기업의 경쟁력 확보와 성과창출을 위한 시사점을 도출하고자 한다.

• Digital Contents
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• no.1 s.44
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• pp.81-86
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• 1997

이 보고서는, 재단법인 데이터베이스진흥센터가 통상산업성으로부터 위탁을 받아 정보화 추진 기반구축(데이터베이스 국제화 촉진 계획 조사보고서)의 조사결과를 정리한 것이다.

• KIPS Transactions on Computer and Communication Systems
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• v.6 no.2
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• pp.95-104
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• 2017

As the technology in smart device is growing and Social Network Services(SNS) are becoming more common, the data which is difficult to be processed by existing RDBMS are increasing. As a result of this, NoSQL databases are getting popular as an alternative for processing massive and unstructured data generated in real time. The demand for the technique of digital investigation of NoSQL databases is increasing as the businesses introducing NoSQL database in their system are increasing, although the technique of digital investigation of databases has been researched centered on RDMBS. New techniques of digital forensic investigation are needed as NoSQL Database has no schema to normalize and the storage method differs depending on the type of database and operation environment. Research on document-based database of NoSQL has been done but it is not applicable as itself to other types of NoSQL Database. Therefore, the way of operation and data model, grasp of operation environment, collection and analysis of artifacts and recovery technique of deleted data in HBase which is a NoSQL column-based database are presented in this paper. Also the proposed technique of digital forensic investigation to HBase is verified by an experimental scenario.