• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권2호
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• pp.1043-1056
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• 2017

A styled document is a document that contains diverse decorating functions such as different font, colors, tables and images generally authored in a word processor (e.g., MS-WORD, Open Office). Compared to a plain-text document, a styled document enables a human to easily recognize a logical structure such as section, subsection and contents of a document. However, it is difficult for a computer to recognize the structure if a writer does not explicitly specify a type of an element by using the styling functions of a word processor. It is one of the obstacles to enhance document version management systems because they currently manage the document with a file as a unit, not the document elements as a management unit. This paper proposes a machine learning based approach to analyzing the logical structure of a styled document composing of sections, subsections and contents. We first suggest a feature vector for characterizing document elements from a styled document, composing of eight features such as font size, indentation and period, each of which is a frequently discovered item in a styled document. Then, we trained machine learning classifiers such as Random Forest and Support Vector Machine using the suggested feature vector. The trained classifiers are used to automatically identify logical structure of a styled document. Our experiment obtained 92.78% of precision and 94.02% of recall for analyzing the logical structure of 50 styled documents.

• 정보관리학회지
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• 제16권1호
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• pp.89-117
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• 1999

지역정보 쓰기에서 이용자들을 돕기 위해 (1) 글 구조, (2) 단락 구성, (3) 문장 작성, (4) 어휘 구사에 대한지식을 글 분석을 통해 연구하였다. 글 구상과 단락 구성을 각각 도와주는 글틀과 단락틀 지식베이스가 고안되었고 단어, 절, 문장의 구현에 필요한 단어와 절 및 문장의 예들을 모은 사전 데이터베이스도 만들었다. 서비스의 질을 높이기 위해 전문가 지향적인 시스템을 추구하였다. PC통신과 웹에서 실용적인 시스템이 되려면 앞으로 (1) 글틀과 단락틀의 주제 추출, (2) 문장의 대표어 작성, (3) 각종 규칙의 정제, (4) 정밀한 지식베이스 구축이 필수적이라고 사려된다.

• 정보관리학회지
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• 제6권1호
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• pp.37-56
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• 1989

This study is a structural analysis of a multi-type and multi-level library network within the framework of a regional interlibrary loan (ILL) system. The study monitored to information network structure for resource sharing of academic and research library materials transmitted through the ILL. The local flow of academic and research information was measured by a survey of the filled ILL transactions by individual libraries in the Western 3Rs region. The major findings were as follows: 1) the regional ILL network showed less than half of participation of the total subject libraries, 2) existing structure surveyed was identified as a composite centralized network with three communication groups, 3) depending on the types of materials transacted, the structure were changed, 4) statewide and multi-state library cooperatives had direct interactions with some of the local libraries, 5) individual libraries participated in the ILL network more for periodicals than book materials, 6) academic libraries throughout the total six structure analyzed showed the highest percentage of participation.

• 디지털산업정보학회논문지
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• 제11권2호
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• pp.37-45
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• 2015

The technology development of MANET and dissemination of P2P services has been made very widely. In particular, the development of many application services for the integration of P2P services in MANET has been made actively. P2P networks are commonly used because of the advantages of efficient use of network bandwidth and rapid information exchange. In P2P network, the infrastructure managing each node in the middle does not exist and each node is a structure playing a role as the sender and receiver. Such a structure is very similar to the structure of the MANET. However, it is difficult to provide reliable P2P service due to the high mobility of mobile nodes. In this paper, we propose location-based routing technique in order to provide efficient file sharing and management between nodes. GMN managing the group is elected after network is configured to the area of a certain size. Each node is assigned an identifier of 12 bit dynamically to provide routing which uses location information to the identifier. ZGT is managed in the GMN in order to provide management of group nodes and distributed cache information. The distributed cache technique is applied to provide a rapid retrieval of the sharing files in the each node. The excellent performance of the proposed technique was confirmed through experiments.

• 한국정보시스템학회지:정보시스템연구
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• 제18권3호
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• pp.135-154
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• 2009

As the knowledge is recognized as a core factor of organization's competitiveness and creation of value added, the importance of knowledge management is also increased. To achieve the successful knowledge management, it is important to establish strategy that consider essential purpose of knowledge management such as creating and sharing of knowledge resource, improving performance, and continuing organizational innovation within the organization and influence factor inside and outside of organization. Until now, however, the research for knowledge management strategy was mostly limited to the statistical analysis based on the unilinear causality model, and systematic access and analysis that consider interaction and feedback structure between factors. In this paper, we developed the novel decision-making framework for successful strategy establishment by applying the analytic network process(ANP). Specifically. we derive clusters and components to decide the interaction and feedback structure between the elements of knowledge management by literature studies. And we produced relative importance and preference of clusters, components and alternatives dealing with feedback structure through the survey of experts in the field or related one of knowledge management. In result of this study, we expect that it will help the knowledge officer to decide establishing knowledge management strategy.

• 정보관리학회지
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• 제21권2호
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• pp.127-152
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• 2004

웹사이트는 기존의 정보의 저장소로서의 역할에서 벗어나 이용자와의 커뮤니케이션과 상호작용을 위한 동적인 정보접근 수단으로 변화하고 있다. 이러한 기능이 효과적으로 수행되기 위해서는, 웹사이트에 수록되는 정보는 체계적이며 이용자가 쉽게 이해할 수 있는 방식으로 조직되어야 한다. 이러한 측면은 대학 웹사이트에서는 더욱 중요한 의미를 갖게 된다. 하지만, 현재의 대학 웹사이트에서 채용하고 있는 정보구조에는 이용자의 정보요구가 반영되지 않고 있으며, 일률적인 체계로 정보를 조직함으로써 웹사이트 전체의 효용성을 저하시키고 있다. 이러한 문제를 해결하기 위해서, 본 연구는 이용자의 정보요구를 최대한 반영하고 웹사이트 전체의 정보접근성을 확보할 수 있는 대학 웹사이트의 정보구조를 제안하는데 그 목적을 두고 있다.

• Journal of Information Technology Applications and Management
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• 제26권1호
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• pp.65-75
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• 2019

As the use of semantic web based on XML increases in the field of data management, a lot of studies to extract useful information from the data stored in ontology have been tried based on association rule mining. Ontology data is advantageous in that data can be freely expressed because it has a flexible and scalable structure unlike a conventional database having a predefined structure. On the contrary, it is difficult to find frequent patterns in a uniformized analysis method. The goal of this study is to provide a basis for extracting useful knowledge from ontology by searching for frequently occurring subgraph patterns by applying transaction-based graph mining techniques to ontology schema graph data and instance graph data constituting ontology. In order to overcome the structural limitations of the existing ontology mining, the frequent pattern search methodology in this study uses the methodology used in graph mining to apply the frequent pattern in the graph data structure to the ontology by applying iterative node chunking method. Our suggested methodology will play an important role in knowledge extraction.

• 한국문헌정보학회지
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• 제14권
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• pp.19-65
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• 1987

Library classification schedule IS based on the classification theory, principle and the system of the classification of science. It should be consisted of the basic principle of library classification which should use the library materials effectively. Continuous study and research on the each subject field of the discipline are essential for keeping up with the transformation of each learning field and the change of modern society. In this paper, I studied comparatively the sections and subsections of the management in KDC, DDC and NDC and reviewed the academic systems of each subject area in the management. I tried to compare the relationship beween the structure of library classifications and academic systems for the more specialized subsections of the management. KDC is influenced by the principle and structure of DDC, but I found that KDC is more similar to NDC than DDC in the sections and subsections of the management. Being un sufficient of subsections of KDC and NDC, they are not enough for the expansion and specialization of the subsections in the management. DDC is necessary to re-schedule for the proper expansion of 650 and 658 with reflection of the importance of that sections and academic systems. In this study, I adoped 9 sections of management, (1) Management policy (2) Administrative organization (3) Personnel (4) Office management and business information management (5) Marketing (6) Financial management (7) Production management (8) Accounting (9) International management. It would be necessary for us to study continuously about the specilized subsubsections of the management for the more professional classification.

• 한국디지털정책학회:학술대회논문집
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• 한국디지털정책학회 2004년도 춘계학술대회
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• pp.383-400
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• 2004

Knowledge management is an essential part for gaining competitive advantage. The knowledge management system deals with information gathering, process, and implementation for the organizational performance advantage. The study integrates knowledge management in view of an internal organizational information processing structure and external strategic issue management system. This means that the coordination between internal systematic process and external scanning mechanism is essential for organizational success.

• 경영정보학연구
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• 제2권1호
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• pp.151-160
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• 2000