• Title/Summary/Keyword: Multidimensional Construct

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A Study on the Organizational Effectiveness of University Libraries (대학도서관의 조직유효성에 관한 연구)

  • Yoon Hye-Young
    • Journal of the Korean Society for Library and Information Science
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    • v.31 no.2
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    • pp.139-175
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    • 1997
  • This study attempts to assess university library organizational effectiveness and to develop an instrument to measure the construct. Major findings of the study are as follows. First, organizational effectiveness criteria can be reduced to fifteen factors. Second, four distinct clusters of libraries are identified, each showing a unique effectiveness profile. Third, there are significant differences in dimensions of organizational effectiveness according to the number of users, full-time staff, unit and position to which respondents belong. The investigation shows that organizational effectiveness of university libraries is, indeed, a multidimensional construct, implying that no single measure of effectiveness Is sufficient to describe an organization.

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An Optimal Design Method for the Multidimensional Nested Attribute Indexes (다차원 중포 속성 색인구조의 최적 설계기법)

  • 이종학
    • Journal of Korea Multimedia Society
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    • v.6 no.2
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    • pp.194-207
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    • 2003
  • This paper presents an optimal design methodology for the multidimensional nested attribute index (MD-NAI) that uses a multidimensional index structure for indexing the nested attributes in object databases. The MD-NAI efficiently supports complex queries involving both nested attributes and class hierarchies, which are not supported by the nested attribute index using one-dimensional index structure such as $B^+$-tree. However, the performance of the MD-NAI is very degraded in some cases of user's query types. In this paper, for the performance enhancement of the MD-NAI, we first determine the optimal shape of index page region by using the query information about the nested predicates, and then construct an optimal MD NAI by applying a region splitting strategy that makes the shape of the page regions of the MD-NAI as close as possible to the predetermined optimal one. For performance evaluation, we perform extensive experiments with the MD-NAI using various types of nested predicates and object distribution. The results indicate that our proposed method builds optimal MD-NAI regardless of the query types and object distributions. When the interval ratio of a three-dimensional query region is 1:16:236, the performance of the proposed method is enhanced by as much as 5.5 times over that of the conventional method employing the cyclic splitting strategy.

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A Systematic Process of Product Design Based on Customer Preferences

  • Chun Young H.;Baek Ingie;Jung Eui S.
    • Proceedings of the Korean Society for Quality Management Conference
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    • 1998.11a
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    • pp.325-332
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    • 1998
  • In the context of total quality management, customer satisfaction is a key factor of success. Customer needs have been in the past described with rather vague words. In order to lead in the competitive market, product designers must be willing to interpret and reflect customer perceptions of a product on the design. The objective of this research is to develop a systematic process capable of linking customer preferences on a product to the design of product elements or specifications. The design process consists of multivariate statistical analyses, semantic differentials, and multidimensional scaling techniques under the framework of a methodology known as quality function deployment which is frequently used to construct a quality design process. The process being established is expected to serve as an effective means to communicate between the customer and the designer through proper representational schemes of design elements.

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A Study on Children's Wear Brand Positioning according to the Fashion Life Style of Missy Woman (신세대 주부의 의생활 양식 유형에 따른 아동복 상표 포지셔닝에 관한 연구)

  • Ku, Yang-Suk;Lee, Seung-Min;Park, Hyun-Hee
    • Fashion & Textile Research Journal
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    • v.2 no.4
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    • pp.308-316
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    • 2000
  • The purposes of this study were to identify the brand positioning of children's wear according to fashion life style and to construct brand positioning maps by using multidimensional scaling (MDS). A total of 222 responses were collected from married women aged 25 to 35 through questionnaire. Cluster analysis on fashion life style factors identified three groups: Fashion Indifference group (34%), Fashion & Individuality Oriented group (27%) and Rationality Oriented group (37%). ANOVA revealed significant differences among the three groups on the six fashion life style factors. MDS analysis showed that three segmented groups evaluated nine children's wear brand for seven attributes(color, design, price, utility, quality, brand name, fashion).

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A Systematic Process of Product Design Based on Cutomer Preferences (소비자의 선호도에 근거한 체계적 제품설계 절차)

  • 전영호;백인기;정의승
    • Journal of Korean Society for Quality Management
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    • v.27 no.3
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    • pp.142-153
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    • 1999
  • In the context of total quality management, customer satisfaction is a key factor of success. Customer needs have been in the past described with rather vague words. In order to lead in the competitive market, product designers must be willing to interpret and reflect customer perceptions of a product on the design. The objective of this research is to develop a systematic process capable of linking customer preferences on a product to the design of product elements or specifications. The design process consists of multivariate statistical analyses, semantic differentials, and multidimensional scaling techniques under the framework of a methodology known as quality function deployment which is frequently used to construct a quality design process. The process being established is expected to serve as an effective means to communicate between the customer and the designer through proper representational schemes of design elements.

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Web Based Comprehensive Environmental Control Engine (Web 기반의 종합적 환경제어시스템의 개발 및 적용)

  • Kim, Joon Hyun
    • Journal of Industrial Technology
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    • v.19
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    • pp.293-300
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    • 1999
  • This paper is aimed at the development of comprehensive environmental management system, which can be operated on the basis of world wide web. This study has been initiated as a topic of G7 project in 1988, and will be accomplished in 2001. Even thought there should be lots of works remaining to achieve this goal, preliminary products can be summarized as follows : 1) integrated environments information management system, 2) web based control engine, 3) surface water environment management system, 4) subsurface water environment management system, 5) sewer and waterworks management system. The core methodology of the engine is the generalized multidimensional finite element matrices to depict the terms in the analysis of various partial differential equations. Spatial information management system (ArcView) and Visual Basic were extensively employed to construct GUI oriented web based engine. Developed systems were consist with very intense computer codes due to the necessity of combinatory management of environmental problems. The web based engine could be served as a decision tool for the integrated management of environmental projects in Korea.

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A Positioning Map according to Satisfaction of Sensibility Elements and Screen Composition Elements of Internet Fashion Shopping Mall (인터넷 패션 쇼핑몰의 감성요소와 화면구성요소 만족도에 따른 포지셔닝 맵)

  • Park, Hyun-Hee;Ku, Yang-Suk
    • Fashion & Textile Research Journal
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    • v.3 no.4
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    • pp.330-336
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    • 2001
  • The purpose of this study was to construct positioning maps according to satisfaction of sensibility elements and screen composition elements of internet fashion shopping mall by using multidimensional scaling (MDS). A questionnaire and internet-site surfing was used for this research, and 200 responses were used for data analysis. MDS analysis showed the satisfaction levels of 10 sensibility elements and 5 screen composition elements satisfaction for 8 selected internet fashion shopping malls.

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Design of large-scale sodium thermal-hydraulic integral effect test facility, STELLA-2

  • Lee, Jewhan;Eoh, Jaehyuk;Yoon, Jung;Son, Seok-Kwon;Kim, Hyungmo
    • Nuclear Engineering and Technology
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    • v.54 no.9
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    • pp.3551-3566
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    • 2022
  • The STELLA program was launched to support the PGSFR development in 2012 and for the 2nd stage, the STELLA-2 facility was designed to investigate the integral effect of safety systems including the comprehensive interaction among PHTS, IHTS and DHRS. In STELLA-2, the long-term transient behavior after accidents can be observed and the overall safety aspect can also be evaluated. In this paper, the basic design concept from engineering basis to specific design is described. The design was aimed to meet similarity criteria and requirements based on various non-dimensional numbers and the result satisfied the key features to explain the reasoning of safety evaluation. The result of this study was used to construct the facility and the experiment is on-going. In general, the final design meets the similarity criteria of the multidimensional physics inside the reactor pool. And also, for the conservation of natural circulation phenomena, the design meets the similarity requirements of geometry and thermo-dynamic behavior.

Developing an Observation System for Body Movements and Clothes (몸의 움직임과 의상의 관찰체계 연구)

  • Soyung Im;Jisoo Ha
    • Journal of the Korean Society of Clothing and Textiles
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    • v.47 no.3
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    • pp.531-543
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    • 2023
  • Unlike a still body in a photograph, the concept of time applies to a moving body wearing clothes. Clothes change shape according to movement, and multidimensional formative observation elements are required to perceive this. Thus, the purpose of this research is to develop a system for observing body movements and clothing. This experimental study was designed based on embodiment research. The first stage of the study derived body movement and clothing observation items from theory. In the second stage, 11 fashion personnel participated in experimental research to verify the observation items and identify those that needed correction or supplementation. The results showed that body movement and clothing observation items can be classified as follows: large moving bodies, moving clothes, body and clothes movement, and body and clothes space. The observation system for body movement and clothes presented can be used to construct the formation of moving clothes.

Construction of Theme Melody Index by Transforming Melody to Time-series Data for Content-based Music Information Retrieval (내용기반 음악정보 검색을 위한 선율의 시계열 데이터 변환을 이용한 주제선율색인 구성)

  • Ha, Jin-Seok;Ku, Kyong-I;Park, Jae-Hyun;Kim, Yoo-Sung
    • The KIPS Transactions:PartD
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    • v.10D no.3
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    • pp.547-558
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    • 2003
  • From the viewpoint of that music melody has the similar features to time-series data, music melody is transformed to a time-series data with normalization and corrections and the similarity between melodies is defined as the Euclidean distance between the transformed time-series data. Then, based the similarity between melodies of a music object, melodies are clustered and the representative of each cluster is extracted as one of theme melodies for the music. To construct the theme melody index, a theme melody is represented as a point of the multidimensional metric space of M-tree. For retrieval of user's query melody, the query melody is also transformed into a time-series data by the same way of indexing phase. To retrieve the similar melodies to the query melody given by user from the theme melody index the range query search algorithm is used. By the implementation of the prototype system using the proposed theme melody index we show the effectiveness of the proposed methods.