• ETRI Journal
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• 제28권4호
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• pp.509-512
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• 2006

In a real environment, sound recordings are commonly distorted by channel and background noise, and the performance of audio identification is mainly degraded by them. Recently, Philips introduced a robust and efficient audio fingerprinting scheme applying a differential (high-pass filtering) to the frequency-time sequence of the perceptual filter-bank energies. In practice, however, the robustness of the audio fingerprinting scheme is still important in a real environment. In this letter, we introduce alternatives to the frequency-temporal filtering combination for an extension method of Philips' audio fingerprinting scheme to achieve robustness to channel and background noise under the conditions of a real situation. Our experimental results show that the proposed filtering combination improves noise robustness in audio identification.

• Journal of Information Science Theory and Practice
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• 제3권4호
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• pp.62-77
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• 2015

This paper describes qualities of a library classification system that are commonly discussed in the LIS tradition and literature, and explains such a system’s three main functions, namely knowledge mapping, information retrieval, and shelf arrangement. In this vein, the paper states the functional requirements of bibliographic classifications, which broadly are subject collocation and facilitation of browsing the collection. It explains with details the components of a library classification system and their functions. The major components are schedules, notations, and index. It also states their distinguished features, such as generalia class, form divisions, book numbers, and devices for number synthesis which are not required in a knowledge classification. It illustrates with examples from the WebDewey good examples of added features of an online library classification system. It emphasizes that institutional backup and a revision machinery are essential for a classification to survive and remain relevant in the print and e-environment.

• 정보관리연구
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• 제36권1호
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• pp.103-124
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• 2005

기관이나 회사에서 도입하는 지식관리 시스템에서 효율적인 지식의 저장, 탐색 및 검색에 관련되는 지식관리 아키텍처에 관해 알아보았다. 먼저 기존에 발표된 문헌을 중심으로 지식관리 아키텍처의 개념을 살펴보았으며, 지금까지 발표된 관련된 이론을 정리해보고, 실제 사례에서 지식관리 아키텍처를 어떻게 운용하는지 살펴보았다. 이로써 실제 지식관리 아키텍처가 어떻게 활용되고, 어떤 특성을 가지고, 어떤 부분에 주력이 되어 있는지 알아봄으로써, 이를 바탕으로 가장 바람직하고 효율적인 발전방향을 제시해보고자 하였다.

• Structural Engineering and Mechanics
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• 제12권3호
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• pp.297-312
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• 2001

The accurate finite element (FE) simulation of reinforced concrete (RC) slabs, having different boundary conditions and subjected to uniformly distributed loading, has led to the use of the developed FE models for generating results of ultimate loads from predictions of 'computer-model' RC slabs having different material and geometric properties. Equations derived from these results constitute the primary database of an intelligent computer-aided-design (CAD) system developed for accurate and fast information retrieval on arbitrary slabs. The system is capable of generating a secondary database through systems of interpolation and can be used for design assistance purposes.

• 한국정보시스템학회지:정보시스템연구
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• 제14권3호
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• pp.82-88
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• 2005

Much information has been hierarchically organized to facilitate information browsing, retrieval, and dissemination. In practice, much information may be entered at any time, but only a small subset of the information may be classified into some categories in a hierarchy. Therefore, achieving document filtering (DF) in the course of document classification (DC) is an essential basis to develop an information center, which classifies suitable documents into suitable categories, reducing information overload while facilitating information sharing. In this paper, we present a technique ICenter, which conducts DF and DC by recognizing the context of discussion (COD) of each document and category. Experiments on real-world data show that, through COD recognition, the performance of ICenter is significantly better. The results are of theoretical and practical significance. ICenter may server as an essential basis to develop an information center for a user community, which shares and organizes a hierarchy of textual information.

• 기술혁신연구
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• 제7권2호
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• pp.119-144
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• 1999

Recently, knowledge management(KM) has attracted increasing attention from academicians and practitioners alike. Amongst others, technological knowledge(TK) is considered principal asset of KM and R,&D organization of private firms selves as primary actor of KM. It is also noted that the notion of sectoral pattern of innovation highlights idiosyncratic differences across industrial sectors in terms of TK management. That is, knowledge contents, knowledge generation and How pattern are considerably different among industries. This paper first analyzes the correlation between structural of R&D organization and industrial(sectoral) type to identify the dominant structure of R&D organization for each industry. Second, sector-specific architectures of TK management system are proposed. According to structural characteristic of R&D-organization type, test-practice forms of TK management system are suggested in terms of such factors as knowledge contents(technology information), knowledge generation activities, and knowledge storage/retrieval modes.

• Journal of Information Science Theory and Practice
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• 제11권1호
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• pp.79-88
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• 2023

This study aimed to develop an ontology for Thai country songs by using the seven steps of an ontology development process. Hozo-Ontology Editor software and Ontology Application Management Framework were tools used in this study. Nine classes of ontology were identified: song, singer, emotion, author, language used, language type, song style, original, and content, and it was found that the song class had a relationship with all of the other classes. The developed ontology was evaluated by seeking opinions from experts in the field of Thai country songs, who agreed that the ontology was highly effective. Additionally, the evaluation employed the knowledge retrieval concept, and the precision, recall, and overall effectiveness were measured, with a precision of 92.59%, a recall of 86.21%, and an overall effectiveness (F-measure) of 89.28%. These results indicate that the developed ontology is highly effective in describing the scope of knowledge of Thai country songs.

• 정보관리학회지
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• 제27권2호
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• pp.37-60
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• 2010

이 연구는 이미지 특성 범주와 관련하여 질의 재구성 패턴을 탐색하고자 하였다. 이러한 연구 목적을 수행하기 위해서 Excite 웹검색 엔진 로그 데이터가 사용되었으며, 총 592 세션과 2,445 질의어가 분석되었다. 데이터 분석은 Batley의 정보 형태 구분과 선행 연구에서 밝혀진 팻싯과 서브팻싯을 활용하여 수행되었다. 분석결과는 두가지 형태로 구분하여 제시되었다. 첫째, 질의 재구성에 관한 분석결과이다. 질의 분석 결과, 가장 많은 부분을 차지하는 범주는 특정어(specific)와 지칭어(nameable)이며, 이러한 경향은 다양한 정보 탐색 단계에서도 지속적으로 나타났다. 둘째, 질의 재구성 패턴과 관려하여, 평행이동이 가장 많이 나타났으며, 이러한 경향은 최초 혹은 직전 질의 범주에 따라 근소한 차이를 보였다. 범주 전환 분석에서는 높은 비율(60%-80%)로 검색 질의의 범주가 지속적으로 동일한 범주에 머무르는 경향을 밝혀내었다. 이러한 결과는 이미지 검색 시스템 설계와 구현에 있어서, 이용자의 질의 선정 과정에 도움을 제공하고 효과적인 시소러스 구축 등에 활용될 수 있을 것으로 기대된다.

• Journal of Information Science Theory and Practice
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• 제7권3호
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• pp.52-64
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• 2019

This research was aimed at studying the situation, problems, and requirements for digital collection lifecycle management of Thai theses and dissertations. The mixed research method used was composed of: (1) Study of the problem and situation in which the qualitative method was applied. The research site covered 10 higher education institutions where the Thailand Digital Collection (TDC) project is operated. The informants were key administrative officers of the TDC project of each institution. In-depth and structured interviews were conducted on an individual basis to obtain the most accurate answers. (2) Study of requirements based on the quantitative research method to survey the requirements for the digital collection management system for Thai theses and dissertations from 84 purposively-selected TDC project officers and 527 end users selected by accidental sampling, totaling 611 samples. Research findings are as follow: (1) The study of the situation and problems of digital collection lifecycle management shows that Thai higher institutions systematically manage their digital collection. The management lifecycle is consistent with the Guidance documents for lifecycle management of ETDs, which included seven steps: program planning, creation, submission, and ingestion, access and retrieval of digital objects, archiving and preservation, evaluation and assessment, interoperation (creation of institutional collaboration), and development of link data. (2) The study of requirements for digital collection management of Thai theses and dissertations shows five system requirements: acquisition and gathering, digitization, metadata standards, management of rights, and storage and retrieval, all of which are at M (mandatory) and D (desirable) levels.

• 한국비블리아학회지
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• 제15권1호
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• pp.177-191
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• 2004

산업사회에서 지식기반사회로의 전환에 따라 각종 산업체에서는 업무수행에 필요한 기술정보를 신속 정확하게 수집 분석하여 경영활동에 반영하기 위한 기술정보 관리의 필요성이 점증하고 있다. 이러한 시대의 요구에 부응하기 위해서는 기술정보를 효율적으로 수집 관리할 수 있는 기술정보 전문인력의 양성이 전제되어야 하며, 이를 위한 교육과정도 산업체에서 요구하는 현장 위주의 실무교육과도 연계되어야 한다. 이에 본 연구는 최근에 각광을 받고 있는 DACUM법을 적용하여 기술정보검색사에 대한 직무를 분석하고, 직무분석을 통해서 얻어진 결과를 바탕으로 기술정보 전문인력을 양성하기 위한 교육과정을 개발하였다. 본 연구의 결과, 얻어진 주요 결론은 다음과 같다. 첫째, 기술정보검색사의 직무영역은 이용자 정보요구 분석, 정보원 선정, 정보검색, 정보분석 및 가공, 검색결과 평가, 정보제공 및 활용의 6개 직무로 구성되며, 6개의 직무는 다시 40개의 작업으로 세분된다. 둘째, 기술정보검색사의 직무에서는 정보원 선정이 가장 중요하다. 셋째, 기술정보검색 사를 양성하기 위한 기관의 주요 교육내용은 데이터베이스 설계 및 구축, OA응용프로그램 활용, PC통신 활용, 동향정보 파악, 인터넷 분류 및 활용, 인터뷰기법, 정보가공, 정보검색, 정보분류, 정보원의 이해와 활용, 지적재산권, 홈페이지의 설계 및 구축 등이다.