• Title/Summary/Keyword: 문헌검토

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A Study on the Performance Improvement of Rocchio Classifier with Term Weighting Methods (용어 가중치부여 기법을 이용한 로치오 분류기의 성능 향상에 관한 연구)

  • Kim, Pan-Jun
    • Journal of the Korean Society for information Management
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    • v.25 no.1
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    • pp.211-233
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    • 2008
  • This study examines various weighting methods for improving the performance of automatic classification based on Rocchio algorithm on two collections(LISA, Reuters-21578). First, three factors for weighting are identified as document factor, document factor, category factor for each weighting schemes, the performance of each was investigated. Second, the performance of combined weighting methods between the single schemes were examined. As a result, for the single schemes based on each factor, category-factor-based schemes showed the best performance, document set-factor-based schemes the second, and document-factor-based schemes the worst. For the combined weighting schemes, the schemes(idf*cat) which combine document set factor with category factor show better performance than the combined schemes(tf*cat or ltf*cat) which combine document factor with category factor as well as the common schemes (tfidf or ltfidf) that combining document factor with document set factor. However, according to the results of comparing the single weighting schemes with combined weighting schemes in the view of the collections, while category-factor-based schemes(cat only) perform best on LISA, the combined schemes(idf*cat) which combine document set factor with category factor showed best performance on the Reuters-21578. Therefore for the practical application of the weighting methods, it needs careful consideration of the categories in a collection for automatic classification.

Conservation Plan and Historic Site Designation Strategy of Celadon Kiln Site in Banam-ri, Gochang (고창 반암리 청자요지의 보존 방안과 사적 지정 전략)

  • SIN Mincheol
    • Korean Journal of Heritage: History & Science
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    • v.56 no.1
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    • pp.208-223
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    • 2023
  • This article was prepared for the purpose of reviewing maintenance plans and strategies for designating the celadon kiln site in Banam-ri, Gochang, a monument designated by the city and province as a historical site. Prior to the discussion, the high academic potential of this site, which is attracting attention as a main point of early celadon main point, was explained, and expectations for the future designation of the monument were reviewed. Next, the current status of preservation and maintenance plans of the celadon kiln site in Banam-ri, Gochang were examined. In particular, the current preservation situation was reviewed through an on-site survey on how the ruins, which have not been designated as a monument, should be maintained for historical designation in the future. Above all, it was argued that it was necessary to conduct excavation and literature surveys to clarify the characteristics of the ruins, investigate the surrounding areas, improve information facilities for visitors, and carry out promotion in connection with them. Finally, the definition of historical sites and the status of historical designation of ceramic kilns, along with the strategies necessary for designation, were presented. In particular, the examples of the existing historical designated celadon kiln site in Dotong-ri, Jinan, and Buncheong Kiln Site in Undae-ri, Goheung were reviewed, and three types of excavation surveys, literature surveys, and academic conferences were presented as the target directions for historical designation. The result of the excavation survey is the basis for suggesting that it has cultural property values with completeness, authenticity, and identity. The literature survey is the basis for supplementing the historical and cultural character of the remains that have not been revealed by excavation. The academic conference explained that it is an opportunity to understand the nature and value of cultural assets, such as the location of cultural assets, the status of relics, and events related to relics.

FMS 투자 타당성 검토 기법에 대한 고찰

  • 이국철
    • Korean Management Science Review
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    • v.4
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    • pp.42-53
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    • 1987
  • FMS는 개별적인 자동화 체계와 기술이 하나의 생산시스템 내에서 통합된 것이므로, 이는 다품종 소량생산 방식에 있어 높은 생산성과 융통성을 동시에 달성하고자 하는 제조시스템이다. FMS와 같은 신제조 기술에 바탕을 둔 공장자동화 시스템을 설치, 운영함에 있어 고유한 생산관리상의 제문제가 발생하며, 특히 막대한 투자비 소요로 인한 경제적 타당성 평가 문제가 FMS 도입상 선결과제로 대두되고 있다. 본 연구는 지금까지 발표된 FMS투자 타당성 검토와 관련된 종합적인 문헌 조사를 행한 후, 이를 크게 "계량요인 위주기법"과 "비계량요인 포함 기법"으로 구분하고, 각 구분에 속한 제 평가 방법들의 특성 및 한계점을 파악하고자 한다. 아울러 FMS 투자타당성 검토 대안으로서 시간적 차원을 달리하는 3단계적 평가 방법을 제시하고자 한다.단계적 평가 방법을 제시하고자 한다.

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A Study on Vertical Clearances of Overhead Distribution Conductor Tensioned by Standard Sag of KEPCO in (가공배전선로의 기준이도 적용시 수직이격거리에 관한 연구)

  • Wong, Yoon-Chan;Sun, Sang-Jin;Jung, Jong-Yon
    • Proceedings of the KIEE Conference
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    • 2009.07a
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    • pp.309_310
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    • 2009
  • 본 연구에서는 가공배전선로의 상하단 단락고장을 예방하기 위하여 현행 관련 기준의 적정성 여부를 검토하고자 한다. 이를 위하여 기준이도, 완철의 최소 이격거리, 미국 NESC(National Electric Safety Code)의 수직선간이격거리에 대하여 문헌적 고찰을 한 후, 이를 토대로 국내에 적용할 수직선간이격거리 및 지상고 검토 조건을 도출하였고, 기준이도 적용 시 가공배전선 종류별 75^{\circ}C$이도를 계산하여 그 결과들을 비교 검토하였다. 그 결과 상하단 선간단락 고장을 예방하기 위하여 나전선의 기준이도를 특고압전선과 동일하게 적용하여야 하며, 특고압 완철 간의 최소이격거리는 경간 100m 이상에서 수직이격거리가 부족하므로 0.1m 정도 증가 시키는 것이 바람직하다는 것을 발견하였다.

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International Trends in Public Library Performance Evaluation (해외 공공도서관의 성과평가 동향과 사례 연구)

  • Kwon, Nahyun;Choi, Youngok;Kim, Sun-Ae;Kim, Sin-Young
    • Journal of the Korean Society for Library and Information Science
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    • v.55 no.2
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    • pp.111-130
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    • 2021
  • The purpose of this study is to examine international trends in performance evaluation of public libraries. We examined major theoretical models for performance evaluation and its measurement guidelines and tools in the literature. We also conducted case studies to investigate actual practices in major regional public library systems in the United States. In-depth interviews with library staff were conducted in three large U.S. public library systems along with analyses of both internal and public documents. The results of the study inform that the most noticeable trend of performance evaluation was to assess the impact of public library in the lives of citizens and the society. Guidelines and methods to measure intangible impact were developed in both international and national levels. These efforts were also found at the local library levels. While the outcome and impact measures were found to be direct reflections of strategic goals of the library systems, actual impact measures have yet to be refined in actual library practices.

A Study on the Survey of the Level of Book Saturation in Chungcheongbuk-do Libraries (충청북도교육청 공동보존자료관 설립에 대한 현장 인력의 인식 분석)

  • Younghee Noh;Bong-Suk Kang;Seung-Jin Kwak;Inho Chang
    • Journal of the Korean Society for Library and Information Science
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    • v.57 no.4
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    • pp.139-159
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    • 2023
  • This study was conducted to review the feasibility of establishing a joint preservation library centered on the Chungcheongbuk-do Office of Education. To achieve this, a survey and perception survey were conducted. The research results suggest the following: Firstly, the functions of the Chungcheongbuk-do Office of Education joint preservation library should focus on the preservation of valuable materials, the development of Chungcheongbuk-do educational and school-specialized materials, and prioritizing the digitalization of important transferred materials and providing services to the general public. Secondly, when determining the criteria for materials to be transferred in the future, priority should be given to materials that require preservation in their original form and those that need media conversion. Thirdly, when considering the types of materials to be transferred in the future, the operational plan should primarily focus on monographs but also consider other types of materials. Fourthly, regarding ownership rights of materials during the transfer process, it is advisable to establish detailed transfer guidelines, including ownership rights, through discussions between the Chungcheongbuk-do Office of Education and individual libraries via the Joint Preservation Library Operating Committee.

A Study on the Analysis of Book Saturation and Preservation Status in School Libraries in Chungcheongbuk-do (충청북도 학교도서관 장서 및 보존 현황 분석 연구)

  • Younghee Noh;Bong-Suk Kang;Seung-Jin Kwak;Inho Chang
    • Journal of the Korean Society for Library and Information Science
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    • v.58 no.1
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    • pp.83-97
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    • 2024
  • In this study, we aimed to examine the feasibility of establishing a shared preservation center with a focus on the Chungcheongbuk-do Office of Education. We conducted surveys to assess the current situation and gather perceptions. The research findings revealed the following: Firstly, the surveyed school libraries were already experiencing extreme levels of book saturation, necessitating the management of book saturation and proper book quantity. Secondly, very few libraries had the facilities required for book preservation. Thirdly, the research showed that in 78% of school libraries, book saturation already exceeded 75%, leading to a rapid increase in discarded books each year. Therefore, there is an urgent need for the systematic expansion of a shared preservation center. Moreover, given the difficulty of individual libraries in establishing facilities for preservation, valuable materials such as rare books and specialized resources should be transferred to a shared preservation center. Additionally, policies and regulations related to material preservation are deemed necessary.

Industrial Information Policies of Developing Countries (개발도상국의 산업정보정책)

  • Choi Sung Jin
    • Journal of the Korean Society for Library and Information Science
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    • v.19
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    • pp.3-22
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    • 1990
  • 이 글은 1990년 10월 29일부터 11월 1일까지 서울 아카데미 하우스에서 열린 제11차 국제문헌정보연맹 아시아$\cdot$태평양위원회 학술회의에서 행한 기조연설의 내용이다. 이 학술회의의 주제인 국가정보정책의 현황과 주요 문제를 정리하여 제시하는 것이 기조연설자가 맡은 과제라 보고 첫째, 최근 수년간 한국정부가 입안 실행한 산업정보정책을 살펴보고 둘째, 일반적으로 개발도상국에서 국가산업정보정책은 누가 입안하고, 입안된 정책은 누가 실행하며, 한국의 경우는 어떤지를 살펴보았다. 산업정보정책은 한 나라의 산업정보봉사활동이 이루고자하는 여러 목표들을 열거한 것이며, 다른 분야의 경우와 마찬가지로 정부에 의하여 결정된다. 산업정보정책을 심의 결정하여 공포하는 것도, 지정된 기관에 재정지원을 제공하거나 법적 의무를 지워 공포된 정책을 실행하는 것도 정부의 책임이다. 제6차 경제사회발전 5개년 계획(1987-91) 속에 표시된 한국정부의 전반적 산업정보정책은 $\ulcorner$산업기술정보 유통지원을 강화하여 현행 산업연구원내 기술정보유통센터의 운영을 대폭 강화하고 전국적 온라인 전산망을 구축하여 산업연구원을 명실 상부한 국가의 중추적 기술정보유통기관으로 육성해나가는 한편 이를 토대로 기술정보 거래시장(테크노 마켓트)을 설치 운영$\lrcorner$하는 것이다. 산업정보정책은 산업발달을 위한 정책 속에 통합되고, 그것은 다시 경제발전 및 기타 부문의 국가발전 정책 속에 포함되는 것이 바람직하다. 한국에서 일반경제정책은 경제기획원이, 산업정책은 상공부 가, 기술정책은 과학기술처가, 재정정책은 재무부와 한국은행이, 통신정책은 체신부가 심의 입안한다. 산업정보정책의 일부를 이루는 산업정책 입안의 주요 책임은 상공부의 산업정책국에 있다. 모든 개발도상국에 꼭 같이 적용할 수 있는 국가산업정보정책 입안 및 실행 지침 같은 것을 마련하기는 어렵다. 그것은 이 분야에 개발된 일반모형이 없고 또 개발도상국이라고 하는 것이 동질집단이 아니기 때문이다. 개발도상국 사이에는 그 경제 발전면에서 뿐만 아니라 정보활동 면에서도 큰 수준 차가 있다. 각 개발도상국은 그 나라 고유의 전통과 형편에 맞는 산업정보정책을 마련하여야 한다. 그렇지만 발전 수준이 비슷한 다른 나라의 산업정보정책을 검토하여 자국의 가능성과 제한점을 바르게 이해하는 일은 적절한 정책 입안에 있어서 도움이 될 것이다. 본 기조연설은 아시아와 대양주의 다른 개발도상국 정책 입안자들에게 그러한 검토자료를 제공할 목적으로 행해진 것이다.

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A literature review on the relationship between personal traits and language learning (언어학습과 성격특성의 관계에 대한 문헌 분석 연구)

  • Eisenberg, Sam;Lee, Kyungsuk
    • Journal of Convergence for Information Technology
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    • v.10 no.6
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    • pp.147-155
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    • 2020
  • This is a literature review study on personality traits' role in language learning. Personality traits play an important role in language learning. In order to review research outcomes in recent studies, articles related to language learning and personality traits were collected through research databases such as ProQuest, Google Scholar, and EBSCO. Based on the analysis of collected literature, this study revealed that extraversion and openness to experience are the personality traits leading to the successful language learning. More specifically, extraversion was related to speaking skills while openness to experience was related to listening. It is also important to note which learning strategies are more likely to be utilized in second language learning and personality traits that are more likely to use them. These findings focus on writing skills, listening skills, and speaking skills. Further studies in the field are suggested.

Authority Control in the Digital Age: A Study of japanese Journal Titles and Corporate Names in the OPACs in Korea (디지털 정보시대의 전거통제 (II): 국내 목록 데이터 베이스의 일본 학술지명과 단체명 연구)

  • 윤정옥
    • Journal of the Korean Society for Library and Information Science
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    • v.35 no.4
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    • pp.161-175
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    • 2001
  • The purpose of this study is to examine how the titles and corporate names of Japanese scholarly journals are treated, and how well the authority control is implemented to assist the access with various names and forms of names to the OPACS. Without the help of either references or internal links among those names and forms of names in the DBs, users are likely to fail in getting the right results. In this study, the cataloging records for serials from the National Assembly Library, KISTI, Yonsei University and the KERIS were examined, and the comparison was made with the records from the NACIS-WebCat of the National Institute of Informatics in Japan. Major findings include (1) the lack of consistency in applying cataloging rules, (2) the lack of proper authority control in treating corporate names, and (3) the lack of references or links among names and variant forms of names. The overall improvement of cataloging practices and application of authority control is strongly recommended for enabling users to access better to those DBs of interest.

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