• 제목/요약/키워드: Modeling Factors

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A Study on Mariners' Standard Behavior for Collision Avoidance (3) - Modeling of the execution process of an avoiding action based on human factors -

  • Park, Jung-Sun;Kobayashi, Hiroaki;Yea, Byeong-Deok
    • 한국항해항만학회지
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    • 제32권4호
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    • pp.279-285
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    • 2008
  • We have proposed modeling methods of mariners' standard behavior for collision avoidance by analyzing mariners' recognition process in a previous study. As a subsequent study, the aim of this study is to build a model of mariners' execution process which is one of six processes in the condition of collision avoidance. In this study, thus, the structure of mariners' information processing on the process of taking avoiding actions is described and the relation between mariners' behavior and necessary factors in the process is analyzed. And then we have built a model of mariners' standard behavior for execution process based on the characteristics of mariners in ship-handling, which are obtained from the international collaborative research on human factors. It is tried to define the contents of execution process based on the standard behavior of mariners for collision avoidance and to formulate information processing of mariners.

Selecting a Web Portal for Online Shopping: A Conceptual Approach Using Interpretive Structural Modeling

  • Prashar, Sanjeev;Vijay, T. Sai;Parsad, Chandan
    • Asian Journal of Business Environment
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    • 제5권4호
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    • pp.37-46
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    • 2015
  • Purpose - The present study examines interrelationships among antecedent factors defining consumer behavior in selecting online shopping websites. Research design, data, and methodology - The study identified factors from existing literature and used Interpretive Structural Modeling (ISM) to propose a conceptual approach to explain consumer website selection behavior. Through extensive discussions among industry and academia experts, qualitative assessment of the relationship between various factors was determined. Results - According to the model, eight congregating factors do not converge directly for website selection, rather, they operate following a hierarchy of influence. The ISM and MICMAC analysis reveal that information on a website and website aesthetics play key roles in influencing website selection. However, convenience and the value proposition also play very significant roles. Conclusions - The study's findings can help the e-commerce industry, especially online retailers. The findings can be used to enhance e-retailer ability to attract, communicate, engage, achieve, monitor, and evaluate web traffic and design appropriate strategies. The study's prime contribution is the application of Interpretative Structural Modeling (ISM) to the field of website selection.

테라포밍에 대한 과학적 모델링 수업에서 소그룹 상호작용 중 발현되는 초등학생의 창의성 (Elementary Students' Creativity Appear in Small Group Interactions During Model-Based Classrooms on Terraforming)

  • 박신희;최승언;김찬종
    • 한국과학교육학회지
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    • 제40권6호
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    • pp.611-620
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    • 2020
  • 본 연구는 학생들의 모델링 과정에서 나타나는 창의성을 사회적 구성주의 관점에서 사회적 상호작용을 통해 학습자가 구성할 수 있는 인지적 능력으로 보고, 이것이 성인의 지도보다는 학습자끼리 서로 상호작용할 때 더 활성화 될 수 있음에 주목하였다(Vygotsky, 1978). 이에 따라 모델링 과정에서 나타나는 학생들의 창의성과 그것에 영향을 미치는 소그룹 상호작용의 특징에 대하여 질적 분석을 통한 본질적 사례연구를 수행하였다. 연구자는 실제 수업에 활용할 9차시의 모듈을 개발하였다. 연구 참여자는 한국의 4학년 초등학생 24명(남 12명, 여 12명)이다. 연구자는 수업자 및 관찰자로서 연구에 참여했으며, 수업 동영상 자료와 녹음 자료, 학생 면담 녹음 자료, 활동지 등의 자료를 수집하였다. 창의성의 수준은 'Mini-C' 창의성(Beghetto & Kaufman, 2007)을 기준으로 하였으며, 학생들의 창의성 분석을 위하여 Davis, Rimm & Siegle(2010)가 제시한 19가지 창의적 능력을 참고하였다. 연구 결과, 개인 모델링 과정에서 주로 나타난 학생들의 창의성은 정교화, 평가, 시각화, 성급한 결론의 유보, 독창성, 분석, 집중 등이었다. 또한 모델링 과정에서 학생들의 창의성에 영향을 주는 소그룹 상호작용은 '제안', '동의', '질문', '반박', '전환'의 5가지로 분류할 수 있었다. 각각의 상호작용을 통해 학생들은 모델링 과정에서 자신만의 생각과 아이디어를 표현하고, 수정하는 과정을 보여주었다. 특히 어린 학생들임에도 불구하고, 자신의 개인 모델을 무조건적으로 반영하기 보다는 다양한 창의적 능력의 사용과 합의를 통해 더 나은 그룹 모델을 형성하고자 하였다. 이러한 점은 앞으로 과학적 모델링 연구에서 학생들의 창의성에 더욱 주목해야 할 필요성을 보여준다.

다중반응표면분석방법을 이용한 다꾸찌 다특성 실험에 대한 분석 방법 (Multi-response Optimization by a Response Surface Approach for a Taguchi-Type Multi-characteristic Experiments)

  • 이우선
    • 한국신뢰성학회지:신뢰성응용연구
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    • 제4권1호
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    • pp.39-64
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    • 2004
  • Taguchi's multi-characteristic experiments seek proper choice of levels of contollable factors which satisfy that all reponses of characteristics in a desirable range simultaneously. This aim can be achieved by response surface techniques that allow more flexible in modeling than traditional Taguchi's parameter design. In this article, a multi-response surface modeling and analysis techniques is proposed to deal with the multi-characteristic optimization problem in experimentation with Taguchi's controllable and noise factors.

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다구찌의 파라미터 설계에 대한 반응표면 접근방법을 이용한 다반응 최적화 (Multiresponse Optimization Using a Response Surface Approach to Taguchi′s Parameter Design)

  • 이우선;이종협;임성수
    • 품질경영학회지
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    • 제27권1호
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    • pp.165-194
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    • 1999
  • Taguchi's parameter design seeks proper choice of levels of controllable factors (Parameters in Taguchi's terminology) that makes the qualify characteristic of a product optimal while making its variability small. This aim can be achieved by response surface techniques that allow flexibility in modeling and analysis. In this article, a collection of response surface modeling and analysis techniques is proposed to deal with the multiresponse optimization problem in experimentation with Taguchi's signal and noise factors.

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BIM을 이용한 건설리스크 해결 가능성 도출 (Identifying Potential Opportunities of BIM for Construction Risk Management)

  • 원종성
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2019년도 추계 학술논문 발표대회
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    • pp.201-202
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    • 2019
  • This paper aimed to identify potential opportunities of building information modeling (BIM) utilization for construction risk management. Construction risk factors and BIM functions were derived through conducting in-depth literature review. Nineteen construction risk factors could be resolved by various BIM functions. Phase planning, site analysis, design authoring, and 3D design coordination were identified as the most efficient BIM functions for construction risk management.

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Residual spatial autocorrelation in macroecological and biogeographical modeling: a review

  • Gaspard, Guetchine;Kim, Daehyun;Chun, Yongwan
    • Journal of Ecology and Environment
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    • 제43권2호
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    • pp.191-201
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    • 2019
  • Macroecologists and biogeographers continue to predict the distribution of species across space based on the relationship between biotic processes and environmental variables. This approach uses data related to, for example, species abundance or presence/absence, climate, geomorphology, and soils. Researchers have acknowledged in their statistical analyses the importance of accounting for the effects of spatial autocorrelation (SAC), which indicates a degree of dependence between pairs of nearby observations. It has been agreed that residual spatial autocorrelation (rSAC) can have a substantial impact on modeling processes and inferences. However, more attention should be paid to the sources of rSAC and the degree to which rSAC becomes problematic. Here, we review previous studies to identify diverse factors that potentially induce the presence of rSAC in macroecological and biogeographical models. Furthermore, an emphasis is put on the quantification of rSAC by seeking to unveil the magnitude to which the presence of SAC in model residuals becomes detrimental to the modeling process. It turned out that five categories of factors can drive the presence of SAC in model residuals: ecological data and processes, scale and distance, missing variables, sampling design, and assumptions and methodological approaches. Additionally, we noted that more explicit and elaborated discussion of rSAC should be presented in species distribution modeling. Future investigations involving the quantification of rSAC are recommended in order to understand when rSAC can have an adverse effect on the modeling process.

NATM 터널의 응력-간극수압 연계 유한요소모델링 (Stress-Pore Pressure Coupled Finite Element Modeling of NATM Tunneling)

  • 유충식;김선빈
    • 한국지반공학회논문집
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    • 제22권10호
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    • pp.5-20
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    • 2006
  • 본 논문에서는 지하수위 하에서 터널이 시공되는 조건을 대상으로 응력-간극수압 연계 유한요소해석 수행시 모델링 측면에서 중요하게 다뤄져야 하는 내용을 고찰하였다. 먼저 연계해석 수행시 요구되는 지하수위 저하와 지반거동과의 관계에 대한 배경 이론을 알아보았으며, 이를 토대로 모델링 측면에서 해석결과에 영향을 미칠 수 있는 다양한 인자들을 선정하고, 선정된 영향인자에 대한 매개변수 연구를 수행하였다. 지하수위 저하가 동반되는 터널 시공조건에서의 유한요소석 모델링 결과는 지반의 불포화특성 고려여부가 가장 큰 영향을 미치는 것으로 나타났으며 본 고에서는 결과를 종합하여 연계해석 모델링시 중요하게 검토되어야 고려사항을 제시하였다.

Big Data Analysis of Weather Condition and Air Quality on Cosmetics Marketing

  • Wang, Zebin;Wu, Tong;Zhao, Xinshuang;Cheng, Shuchun;Dai, Genghui;Dai, Weihui
    • Journal of Information Technology Applications and Management
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    • 제24권3호
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    • pp.93-105
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    • 2017
  • Demands of cosmetics are affected not only by the well-known elements such as brand, price, and customer's consumption capacity, but also by some latent factors, for example, weather and air environment. Due to complexity and dynamic changes of the above factors, their influences can hardly be estimated in an accurate way by the traditional approaches such as survey and questionnaires. Through modeling and statistical analysis of big data, this article studied the impacts of weather condition and air quality on customer flow and sales of the cosmetics distributors in China, and found several hidden influencing factors. It provided a big-data based method for the analysis of unconventional factors on cosmetics marketing in the changing weather condition and air environment.

Research on the Correlation between Wavy Modeling of Garment and Fabric Properties

  • Wenbin, Zhang;Wu, Tuo;Jingru, Liu
    • 패션비즈니스
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    • 제8권6호
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    • pp.1-14
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    • 2004
  • On the basis of garment spatial configuration technology, the correlation of fabric properties and garment modeling was studied in this paper. With abundant experimental data, practical modeling and the judgment of fabric properties and physical shape, we analyzed the change rules that restricting all kinds of parameters of fabric properties and garment modeling, and discussed the relation of wavy modeling and all correlated factors of fabric properties. The result showed the basis of choosing fabric for different style garment, which would help designers choosing fabric for modeling design or structure design.