• 제목/요약/키워드: Collection Selection

검색결과 410건 처리시간 0.027초

이용계수를 적용한 공공도서관 소설장서 평가 (Evaluation of the Fiction Collection of Public Libraries Based on Use Factor)

  • 윤희윤;김일영
    • 정보관리연구
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    • 제42권4호
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    • pp.175-194
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    • 2011
  • 본 연구는 이용계수를 적용하여 국내 공공도서관의 소설장서를 평가하고 장서개발기능을 제고시키기 위한 다양한 방안을 제시하였다. 그 결과, 한국문학은 언어별 문학에서의 장서구성 및 이용대출 비중이 각각 62.6%와 54.3%로 가장 높았음에도 불구하고 이용계수(0.87)는 기준값(1.00)보다 낮았다. 또한 한국현대소설은 한국소설의 세목별 장서구성 및 이용대출에서의 비중이 각각 65.60%와 51.36%로 가장 높음에도 이용계수(0.78)는 기준값보다 낮았고 연도별 이용계수도 최근 연도에 근접할수록 감소하고 있다. 그 이유는 장서개발이 부실하기 때문이다. 그러므로 공공도서관은 장서개발정책 및 소설장서개발지침의 수립, 소설자료선정위원회의 구성, 소설자료개발 전담사서제 도입, 소설자료 선정도구의 개발과 활용, 소설장서의 주기적 평가와 같은 방안의 도입을 적극적으로 검토할 필요가 있다.

Prototype-based Classifier with Feature Selection and Its Design with Particle Swarm Optimization: Analysis and Comparative Studies

  • Park, Byoung-Jun;Oh, Sung-Kwun
    • Journal of Electrical Engineering and Technology
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    • 제7권2호
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    • pp.245-254
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    • 2012
  • In this study, we introduce a prototype-based classifier with feature selection that dwells upon the usage of a biologically inspired optimization technique of Particle Swarm Optimization (PSO). The design comprises two main phases. In the first phase, PSO selects P % of patterns to be treated as prototypes of c classes. During the second phase, the PSO is instrumental in the formation of a core set of features that constitute a collection of the most meaningful and highly discriminative coordinates of the original feature space. The proposed scheme of feature selection is developed in the wrapper mode with the performance evaluated with the aid of the nearest prototype classifier. The study offers a complete algorithmic framework and demonstrates the effectiveness (quality of solution) and efficiency (computing cost) of the approach when applied to a collection of selected data sets. We also include a comparative study which involves the usage of genetic algorithms (GAs). Numerical experiments show that a suitable selection of prototypes and a substantial reduction of the feature space could be accomplished and the classifier formed in this manner becomes characterized by low classification error. In addition, the advantage of the PSO is quantified in detail by running a number of experiments using Machine Learning datasets.

A Novel Statistical Feature Selection Approach for Text Categorization

  • Fattah, Mohamed Abdel
    • Journal of Information Processing Systems
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    • 제13권5호
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    • pp.1397-1409
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    • 2017
  • For text categorization task, distinctive text features selection is important due to feature space high dimensionality. It is important to decrease the feature space dimension to decrease processing time and increase accuracy. In the current study, for text categorization task, we introduce a novel statistical feature selection approach. This approach measures the term distribution in all collection documents, the term distribution in a certain category and the term distribution in a certain class relative to other classes. The proposed method results show its superiority over the traditional feature selection methods.

도서관을 위한 디지털 포맷 선정 전략 연구 (A Study on Digital Format Selection Strategies for a Library)

  • 서태설;장덕현
    • 정보관리연구
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    • 제39권3호
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    • pp.1-21
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    • 2008
  • 이 논문에서는 디지털 포맷의 기본 유형을 정의하였고, 미국의 NISO와 LC, 그리고 덴마크의 국가 및 대학 도서관/왕립 도서관의 디지털 포맷 선정 기준의 사례를 소개하였다. 이를 분석 및 종합하여 5가지 유지관리 측면의 선정 요인(설명성, 독립성, 일관성, 범용성, 품질)과 품질 및 기능성 선정 요인을 얻었다. 이를 기반으로 도서관을 위한 디지털 정보자원에 대한 포맷 선정 전략을 제시하였다.

한국의 종합대학도서관 장서개발정책에 관한 연구 (A Study of Collection Development Policies of the University Libraries in Korea)

  • 손정표
    • 한국도서관정보학회지
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    • 제11권
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    • pp.101-142
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    • 1984
  • This study is a survey of collection development policies in the 40 university libraries among 42 in Korea as of 1984. The survey used a questionnaire with 36 questions concerning the basic elements of the collection development policy. The survey results revealed many problems demanding correction. The measures to correct the problems in the university libraries are as follows. 1. It is desirable that the libraries should have a collection development policy statement written and adopted for the systematic collection building. 2. It is advisable that the libraries should include a function of the materials selection among other various functions of the Library Committee for the purpose of informing administrators of the goals of the libraries and the validity of the budgetary allocation. 3. It is desirable that each library should organize the Collection Development Committee for minimizing the possibility of personal bias on the part of the individual selectors. 4. It is advisable that the primary responsibility for materials selection should be delegated as follows: for the materials for faculty research, to the faculty members; for the other collections, to the professional staff of each department; for the final review of whether or not to purchase, to the Collection Development Committee. 5. It is desirable for the purchase priority of materials to be set up in accordance with the order of 6 levels of collection development. 6. It is advisable that the libraries should, as top priority, purchase materials in direct su n.0, pport of the undergraduate and graduate academic programs, and in subject matter areas other than languages and literature, Korean materials should have not only the higher priority than the foreign language materials, but also maintain the comprehensive collection level. 7. It is desirable that the special collections should be purchased by special funds from the authority, and the special collections librarian should have the responsibility of the materials selection under the advice of the faculty members relating to the subject area. 8. It is advisable that duplicate copies should be bought only for high use items, but for reserve books, by the program enrollment, and textbooks should not be bought in general, except as su n.0, pplemental materials for course work in which they are necessary and heavily used. 9. It is reasonable that the material budget should be distributed as follows: by the ratio for distributing funds, about 60-70% for the library and 30-40% for departments; by the type of materials, about 50% for books, 40% for periodicals and 10% for other materials, or when not bought other materials, about 50-60% for books and 40-50% for periodicals. In addition, it is desirable that undergraduate class enrollment, graduate class enrollment, undergraduate majors, graduate majors, average book cost in the discipline, number of faculty, and use rate by subject should be considered as the factors for the allocation of funds by department, and special consideration should be given to newly-founded departments so the library holdings can be adequate to su n.0, pport them.

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신학대학도서관의 장서개발정책 수립에 관한 연구 (A Study on the Establishment of Collection Development Policies at Libraries of Theological Universities)

  • 정은주;곽철완
    • 한국비블리아학회지
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    • 제26권1호
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    • pp.101-134
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    • 2015
  • 본 연구의 목적은 국내 신학대학교도서관의 장서개발정책 수립 요인과 장서개발정책 모형을 제시하기 위함이다. 이를 위하여 장서개발정책 사례로 국외 신학대학교도서관의 장서개발정책 구성요소 및 세부사항을 분석하였고, 국내 신학대학교도서관의 장서개발정책 현황을 파악하기 위하여 설문조사를 실시하였다. 조사 결과를 바탕으로 국내 신학대학교도서관에서 장서개발정책 수립을 위해 고려해야 할 외적 환경요인과 내적 요인을 밝히고 이를 기초로 서문, 장서의 선정, 장서의 수집, 예산, 장서의 유지 및 관리, 상호협력과 지적자유, 장서개발정책 개정의 7개 영역으로 구분하여 국내 신학대학교도서관의 장서개발정책 모형을 제안하였다.

한국 대학도서관의 장서개발정책과 지침작성에 관한 연구 (A Study on Collection Development Policy and Guideline Establishment in the Korean University Library)

  • 류인석
    • 한국문헌정보학회지
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    • 제22권
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    • pp.109-141
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    • 1992
  • University library must have a substantial collection development policy, by which the short and long term plannings are set up to meet the goals of university education and to support university function. Only when university library organizes collection building based on the well-planned policy, can it establish the systematic collection building, which can satisfy users, support continuity of work, use budget efficiently, and solve the space problem by with-drawing the materials. But most Korean university libraries, contrary to many foreign cases, don't have proper systematic collection development policy or guideline that controls overall library work from planning the collection of materials to evaluating and preserving them. Questionaire on whether university library has collection development policy or guideline was answered positively by only 6 cases out of 57 cases, which is just 10.5 percent. Even in cases that they have a guideline, the content of the copied guideline they sent was confined to acquisition, which is just a part of collection development. Collection development is a statement needed to set up long and short term plannings in consideration of the aims of the library and the needs of users and to shape and manage the library collection systematically. With the above conception and definition, we try to make a proper collection development policy and guideline for the Korean university libraries. Here we must define the object of the university. Object of university is to have good curriculum, good courses, research activities on the part of the faculty, enlargement of graduate school, and establishment of various institutes, etc. And in guideline, selector, method of selection, level of selection and arrangement of budget, etc. must be described concretely in its contents. Since collection development policy and guideline of Korean university libraries should concern their situation, we must confer with the result of the survey and analysis on the matter of collection determination. Here the contents include the priority of materials to be collected, method of collecting materials, arrangement of budget, and others. The purpose of this study is to develop a tenative collection development guideline in reference to the Jeonju University Library by means of analyzing the guiding principle, contents of the guideline, and present conditions of the Korean university libraries. The systematic collection development based on the Guideline for Collection Development of the Korean University Library, can offer a satisfactory service to the users of the university community, and also contribute to the development of the university itself as well as the university library.

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The Prediction Ability of Genomic Selection in the Wheat Core Collection

  • Yuna Kang;Changsoo Kim
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2022년도 추계학술대회
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    • pp.235-235
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    • 2022
  • Genome selection is a promising tool for plant and animal breeding, which uses genome-wide molecular marker data to capture large and small effect quantitative trait loci and predict the genetic value of selection candidates. Genomic selection has been shown previously to have higher prediction accuracies than conventional marker-assisted selection (MAS) for quantitative traits. In this study, the prediction accuracy of 10 agricultural traits in the wheat core group with 567 points was compared. We used a cross-validation approach to train and validate prediction accuracy to evaluate the effects of training population size and training model.As for the prediction accuracy according to the model, the prediction accuracy of 0.4 or more was evaluated except for the SVN model among the 6 models (GBLUP, LASSO, BayseA, RKHS, SVN, RF) used in most all traits. For traits such as days to heading and days to maturity, the prediction accuracy was very high, over 0.8. As for the prediction accuracy according to the training group, the prediction accuracy increased as the number of training groups increased in all traits. It was confirmed that the prediction accuracy was different in the training population according to the genetic composition regardless of the number. All training models were verified through 5-fold cross-validation. To verify the prediction ability of the training population of the wheat core collection, we compared the actual phenotype and genomic estimated breeding value using 35 breeding population. In fact, out of 10 individuals with the fastest days to heading, 5 individuals were selected through genomic selection, and 6 individuals were selected through genomic selection out of the 10 individuals with the slowest days to heading. Therefore, we confirmed the possibility of selecting individuals according to traits with only the genotype for a shorter period of time through genomic selection.

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폐기물처리시설 입지선정에 따른 사례연구 (A Case Study for Site Selection of the Waste Treatment Facilities)

  • 이해승
    • 환경위생공학
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    • 제19권1호
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    • pp.24-36
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    • 2004
  • This study is to investigate the present condition of waste disposal establishment and to analysis problems which could be produced at location selection formalities of waste disposal establishment. It proposed building methods of waste disposal establishment to lead spontaneous participation of local resident according to case analysis of waste disposal establishment. There are research results; i) Opposition of inhabitants was the majority of reason at the business abandonment or delay of waste disposal establishment. Therefore agreement formation course with local inhabitants is most important position. ii) Many estimate have been needed for waste disposal establishment, but support estimate of government was 30-50% that is really low compare with other environmental establishment. So that it need to increase of government estimate. iii) Location collection is carried out based on law and final collected location must be executed without delay of relation business as soon as possible. iv) Standard of location collection has to divide into small, middle and large size and to apply with same rule according to divided location. v) It must be change public subscription before and location selection after and maintain continuance of information offer to local inhabitants and offered information. vi) after building of waste disposal establishment for solving distrust of waste disposal establishment. It must be planed and carried on useful support countermeasure to local inhabitants in actuality.

안정적인 데이터 수집을 위해 드론의 비행경로를 고려한 랑데부 노드 선정 기법 (A Rendezvous Node Selection Scheme Considering a Drone's Trajectory for Reliable Data Collection)

  • 민홍;정진만;김봉재;허준영
    • 정보과학회 컴퓨팅의 실제 논문지
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    • 제24권2호
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    • pp.77-81
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    • 2018
  • 무선 센서 네트워크에서 이동하는 싱크를 활용하여 데이터를 수집하는 방법을 통해 데이터 수집의 효율성과 네트워크의 수명을 향상시키는 연구들이 진행되었다. 드론을 모바일 싱크로 활용할 경우 장애물이나 지형 등의 영향을 최소화 할 수 있기 때문에 기존의 지상에서 운용되는 모바일 싱크들에 비해 효과적인 데이터 수집이 가능하다. 본 논문에서는 드론과 지상 센서 네트워크의 연동 시 드론의 이동 경로가 정해지지 않은 상황에서 안정적인 데이터 수집을 위해 드론의 비행경로를 예측하고 센서 네트워크의 데이터 수집 지연 시간을 반영하여 최적의 랑데부 노드를 선정하는 방법을 제안한다. 선정된 지상 랑데부 노드는 네트워크 내의 모든 데이터를 수집하고 드론과 직접 통신을 통해 데이터를 전송한다. 또한 시뮬레이션을 통해 제안기법이 드론의 비행경로와 데이터 수집의 지연시간을 반영하지 않는 기법들에 비해 안정적인 데이터 수집이 가능하다는 것을 검증하였다.