• Journal of Korea Society of Digital Industry and Information Management
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• v.11 no.2
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• pp.73-90
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• 2015

When we apply file commands on files in a directory, the directory as well as the file suffer changes in timestamps of MFT entry. Based on understanding of these changes, this work provides a digital forensic analysis on the timestamp changes of the directory influenced by execution of file commands. NTFS utilizes B-tree indexing structure for managing efficient storage of a huge number of files and fast lookups, which changes an index tree of the directory index when files are operated by commands. From a digital forensic point of view, we try to understand behaviors of the B-tree indexes and are looking for traces of files to collect information. But it is not easy to analyze the directory index entry when the file commands are executed. And researches on a digital forensic about NTFS directory and B-tree indexing are comparatively rare. Focusing on the fact, we present, in this paper, directory timestamp changes after executing file commands including a creation, a copy, a deletion etc are analyzed and a method for finding forensic evidences of a deletion of directory containing files. With some cases, i.e. examples of file copy and file deletion command, analyses on the problem of timestamp changes of the directory are given and the problem of finding evidences of a deletion of directory containging files are shown.

• Journal of the Korean Society for information Management
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• v.19 no.4
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• pp.349-381
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• 2002

The 21st century survive only who creating, taking, and managing to knowledge. Digital contents industry becomes to the core in the future. That is, to win in a competition have to the digitalizing knowledge contents to all knowledge and information resources. Therefore, it needs to the digital contents management and the distribution framework. This study aims to propose a model stages in the knowledge contents-decision process, KM Matrix, and KMI Score founded on digital contents framework and diffusion of innovation.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.9 no.1
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• pp.181-193
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• 1998

The purpose of this paper is to examine the variables that contribute to making a successful digital library with integrated conceptual framework The central research question is what are the characteristics of most successful digital libraries \ulcorner and what factors determine whether a new digital library is likely to survive\ulcorner Three groups of factors that affect the success of an digital library can be extracted from previous research；(1) individual characteristics of the digital librarian；(2) group structural characteristics；(3) conditions characterizing the environment of a new digital library. provide a brief introduction to this comprehensive model.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.520-522
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• 2022

Lone Death is increasing as elderly population increases. Lone elderly is vulnerable in society for many reasons. This paper explores digital solution to protect solitary in society. First, sensor and AI care robot can be used to collect digital data and situation check. Second, digital device is checked regularly and visiting is expanded in digital environment. Third, digital emergency security system should be established. Fourth, user education is to be regularly carried out including complementary education.

• Journal of the Korean Society for information Management
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• v.24 no.4
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• pp.239-254
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• 2007

In order to solve the problems of the digital library's Interoperability and integrated management, we analyzed core technologies for interoperability in digital library in terms of information creation, organization, service. And then we proposed information technology reference model that is composed of 7 scopes. The proposed scope included 1)Metadata Management, 2)Library Services, 3)Service Integration 4)Service Management, 5)Open Interface, 6)Network, 7)Architecture. Those results can be used as a framework for developing interoperable digital library system.

• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.207-210
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• 2024

본 연구의 목적은 결혼 이주 여성의 디지털 정보화 변화 만족도에 미치는 영향을 탐색하는 데 있다. 이를 위해 2022년 실시한 디지털정보격차 실태조사 자료 중 결혼이주여성 응답을 SPSS 25.0 통계프로그램을 활용하여 영향 관계를 분석하였다. 결과, 첫째, 결혼 기간이 정(+)적인 영향을 미쳤다. 둘째, 스마트폰 이용일수가 정(+)적 영향을 미치는 것으로 나타났다. 셋째, 디지털 정보화기기 활용 역량 중 PC 활용 능력은 부(-)적 영향을 미쳤고, 모바일기기 활용 능력은 정(+)적 영향을 미쳤다. 넷째, 디지털 정보활용 역량 중 취미여가에 활용은 결혼 이주 여성의 디지털 정보화 변화 만족도에 정(+)적 영향을 미치는 것으로 나타났다. 다섯째, 디지털 사회자본 중 가교형 사회자본이 정(+)적 영향을 미치는 것으로 나타났다. 여섯째, 디지털 정보화 자기효능감은 결혼 이주 여성의 디지털 정보화 변화 만족도에 정(+)적 영향을 미치는 것으로 나타났다.

• Journal of the Korean Society for Library and Information Science
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• v.55 no.1
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• pp.393-413
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• 2021

Digital humanities, which creates new and innovative knowledge through the combination of digital information technology and humanities research problems, can be seen as a representative multidisciplinary field of study. To investigate the intellectual structure of the digital humanities field, a network analysis of authors and keywords co-word was performed on a total of 441 papers in the last two years (2019, 2020) at the Digital Humanities Conference. As the results of the author and keyword analysis show, we can find out the active activities of Europe, North America, and Japanese and Chinese authors in East Asia. Through the co-author network, 11 dis-connected sub-networks are identified, which can be seen as a result of closed co-authoring activities. Through keyword analysis, 16 sub-subject areas are identified, which are machine learning, pedagogy, metadata, topic modeling, stylometry, cultural heritage, network, digital archive, natural language processing, digital library, twitter, drama, big data, neural network, virtual reality, and ethics. This results imply that a diver variety of digital information technologies are playing a major role in the digital humanities. In addition, keywords with high frequency can be classified into humanities-based keywords, digital information technology-based keywords, and convergence keywords. The dynamics of the growth and development of digital humanities can represented in these combinations of keywords.

• Journal of the Korean Society for information Management
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• v.20 no.1
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• pp.5-29
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• 2003

University libraries have developed digital information resources for digital services and have tried to preserve valuable digital information. Because digital preservation raises challenges of a fundamentally different nature which we added to the problems to preserving traditional format materials, it is necessary that preserving digital resources must be discussed and researched actively. This study conducts risk management for exploring preserving technologies and assessing tools. It is found that most university libraries have used format conversion frequently and do not use the emulation technology. It is also found that medium refreshing has the lowest risk probability and isk impact, but information migration and emulation technology have the highest in the risk probability and in the risk impact individually and the absence of full-time professional staff causes high risk.

• Journal of Korea Society of Digital Industry and Information Management
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• v.5 no.2
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• pp.51-76
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• 2009

In this paper, a new hybrid opto-digital multiple information hiding and real-time extracting system was suggested and implemented using a volume holographic optical correlator. The multiple information hiding system in which the multiple information can be hided in an arbitrary cover image was digitally implemented by using the combination of pseudo random sequence and Hadamard matrix. In addition, a real-time optical extraction system in which the hided multiple information in a cover image can be extracted in real-time was implemented by using a volume holographic optical correlator. In the VanderLugt-type holographic optical correlator used in this experiment, the multiful matched spatial filters corresponding each of the hided informations were recorded in a photorefractive crystal by using the moving window-based angular multiplexing scheme.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2002.11a
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• pp.59-64
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• 2002

Presently, digital information society that we live in is changing the world rapidly and it is making a human style of living more complicated into various ways. Also the change of human life style in general society has expedited the transition of the housing design. Therefore, this research will illustrate the future housing in Sweden to show more realistically the changeable houses in digital informational society