• 제목/요약/키워드: Vague Information

검색결과 160건 처리시간 0.026초

퍼지숫자를 기반으로 가중 구성요소를 갖는 퍼지시스템의 신뢰도분석 (Fuzzy System Reliability Analysis With Weighted Components Based on Fuzzy Numbers)

  • 조상엽
    • 인터넷정보학회논문지
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    • 제8권3호
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    • pp.99-107
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    • 2007
  • 일반적으로 퍼지시스템의 신뢰도는 0과 1사이의 실수, 퍼지숫자, 신용구간, 구간값 퍼지집합,모호집합 등으로 표현하고 분석한다. 본 논문은 시스템에서 가중 구성요소의 중요도를 반영하는 가중값을 갖는 가중 구성요소를 위한 퍼지시스템의 신뢰도를 분석하는 방법을 설명한다. 퍼지시스템에서 가중 구성요소들의 신뢰도와 가중간은 삼각 퍼지숫자로 표현한다. 제안한 방법은 삼각 퍼지숫자의 퍼지산술연산을 사용하고 가중 구성요소의 가중값을 고려한다. 그러므로 기존의 방법들 보다 실행속도가 더 빠르고 그리고 더 유연한 실행이 가능하다.

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모바일 기기 구매 의사결정에 관한 멘탈 모델의 추출 (Eliciting Mental Models for Mobile Device Purchase Decision Making)

  • 황신웅;윤용식;손영우
    • 감성과학
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    • 제10권1호
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    • pp.23-36
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    • 2007
  • 본 연구는 소비자가 모바일 기기를 구매함에 있어서 어떤 멘탈 모델을 가지고 있는지를 파악하는데 중점을 두고 멘탈 모델의 추출과 분석을 시도하였다. 본 연구는 모바일 기기 구매 의사결정 과정에서 IT 친숙도에 따라 서로 다른 멘탈 모델을 가지고 있을 것이라는 가설을 가지고 크게 두 부분으로 나누어 연구를 진행하여 인지 과제 분석 방법의 하나인 Critical Decision Method를 이용하여 멘탈 모델을 이루는 27가지 구성요소들을 추출하였고, 이렇게 추출된 구성요소들을 바탕으로 IT 친숙도에 따라 소비자의 멘탈 모델을 두 그룹으로 구분하여 Pathfinder 알고리즘과Social Network Analysis를 이용하여 각각의 멘탈 모델을 분석하고 있다. 분석결과 IT 친숙도가 높은 그룹은 멘탈 모델을 구성하는 요소들이 각각의 독자적 특성에 따라 구매 의사결정 과정에서 비교적 조직적이고 분명하게 구분된 역할을 수행하는 것으로 나타난 반면, IT 친숙도가 낮은 그룹은 멘탈 모델 구성 요소들 간의 관계나 역할이 불분명하고 혼재된 경향을 보였으며 구매 의사결정 과정에서 외부 의견이나 사회적 통념을 중시하는 것으로 나타났다.

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사고 보상과정에서 나타난 여성농업인의 불평등 (Gender Inequality in Compensation for Accident of Female Farmer)

  • 이진영;김경미;최윤지
    • 농촌지도와개발
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    • 제13권2호
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    • pp.299-312
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    • 2006
  • This study reported on the cases about gender inequality in agriculture. Generally women have experienced something in vague situation as unequal to men in rural and agriculture. Despite of some women's have been complaining about this problem, it is not easy why and how many times they have been suffering. In this report, to get the information of gender unequality in agricultural laws and policies, the data was gathered by two steps. The first step, 175 cases into nine types was collected from leaders of several women farmer's associations, and after that, 60 cases selected to be interviewed by a specialist panel. The second step, it was analyzed the interviewed 60 cases based on real conditions compared with laws of items of policies. Among the cases, it was analyzed 8 rural women's who had been experienced to receive the inappropriate compensation in an unexpected accidents. From these cases, it was drew up some suggestions as follows; to make a rule to certify of the identity of woman farmer, and to build in a monitoring system of gender equality in agriculture.

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화상환아 어머니의 돌봄 경험에 대한 내용분석 (Content Analysis on Caring Experiences of Mothers of Children with Burns)

  • 남선희;서지민
    • 여성건강간호학회지
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    • 제18권4호
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    • pp.257-267
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    • 2012
  • Purpose: This study was conducted to identify the caring experience of the mothers of childhood burn patients. Methods: Data were collected from 28 mothers of childhood burn patients, through semi-structured in-depth interviews. Data were categorized and coded by using content analysis. Results: 27 categories and 102 statements were drawn from 4 domains. The analyzed domains were psychological sufferings, confronted harsh reality, coping method, and future concerns. Psychological sufferings were categorized heartache, sense of guilt, confusion, regret, depression, sorriness, getting hurt, frustration and upset feeling. Confronted harsh nature were categorized economic difficulty, physical burn-out, lack of caring other children and family troubles. Coping method were categorized positive thinking, having hope, ventilating feelings, accepting the situations, demanding help from family members, changing patterns of the burned child rearing, collecting information for burn treatment, refusing accept the condition of burned child, avoiding personal and social relationship, and reliance on religion. Concerns were categorized concerns of growth and adaptation of the burned child, anxiety for scar, concerns of adapting school life and vague future concerns. Conclusion: The nursing interventions for early assessing psychological problems and providing social supports for caring both burn patients and other siblings should be provided to the mothers of childhood burn patients.

퍼지 분류기법을 이용한 강건한 카메라 동작 추정 (Robust Estimation of Camera Motion using Fuzzy Classification Method)

  • 이중재;김계영;최형일
    • 정보처리학회논문지B
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    • 제13B권7호
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    • pp.671-678
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    • 2006
  • 본 논문에서는 두 영상간의 대응관계로부터 퍼지 분류기법을 이용한 강건한 카메라 동작 추정 방법을 제안한다. 제안한 방법에서는 이상치가 존재할 때 정확한 카메라 동작을 추정하기 위하여 대표적인 강건 예측기법인 RANSAC 알고리즘을 사용한다. 그런데 RANSAC은 사전에 결정되는 이상치의 비율에 따라 정확도가 좌우되는 샘플링 문제점을 가지고 있다. 이러한 문제점을 개선하기 위해 샘플링 시에 퍼지 분류기법을 이용하여 전체 샘플을 좋은, 모호한, 나쁜 샘플로 분류한다. 그런 후에 좋은 데이터에 대해서만 샘플링을 수행함으로써 이상치 제거에 대한 정확도를 향상시킨다. 실험에서는 호모그래피 계산에 대한 성능을 비교함으로써 제안한 방법의 우수함을 보인다.

3차원 조형장비 선정을 위한 효율적인 의사결정 방법 (An Efficient Decision Maki ng Method for the Selectionof a Layered Manufacturing)

  • 변홍석
    • 한국공작기계학회논문집
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    • 제18권1호
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    • pp.59-67
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    • 2009
  • The purpose of this study is to provide a decision support to select an appropriate layered manufacturing(LM) machine that suits the application of a part. Selection factors include concept model, form/fit/functional model, pattern model far molding, material property, build time and part cost that greatly affect the performance of LM machines. However, the selection of a LM is not an easy decision because they are uncertain and vague. For this reason, the aim of this research is to propose hybrid multiple attribute decision making approaches to effectively evaluate LM machines. In addition, because subjective considerations are relevant to selection decision, a fuzzy logic approach is adopted. The proposed selection procedure consists of several steps. First, we identify LM machines that the users consider After constructing the evaluation criteria, we calculate the weights of the criteria by applying the fuzzy Analytic Hierarchy Process(AHP) method. Finally, we construct the fuzzy Technique of Order Preference by Similarity to Ideal Solution(TOPSIS) method to achieve the ranking order of all machines providing the decision information for the selection of LM machines.

"황제내경(黃帝內經)" 발병이론(發病理論)의 의의(意義)에 대한 고찰 (An Inquiry into the Significance of Theory of Podiatry in "Hwangjenaegyeong(黃帝內經)")

  • 장우창
    • 대한한의학원전학회지
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    • 제20권3호
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    • pp.1-8
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    • 2007
  • In "Hwangjenaegyeong", pathogenesis is explained based on theory of Yin and Yang. According to the theory, all environments surrounding us, physical and emotional both, are related to outbreak of diseases. This also reflects one of the major theories in oriental medicine, in which a human body is perceived as a correspondence to natural environment. In this theory, the main idea is to understand changes in the universe based on mutual correlations from within. This kind of perspective is easily criticized from scientific point of view. Whereas modern science pursue analytic thinking and objective information, the theories above seem rather vague. However, from a different angle, through a characteristic perspective of oriental medicine, actual significance can be found in the theory. Many diseases result from one's intemperate living habits. Therefore, much prevention can be made by self-control. Also, once disease occurs, the essential step to treatment is to find cause in the living environment and regain balance. Natural cure will take its' course when living habits recover moderate pace and are back in harmony with the environment.

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Placental Histopathology in COVID-19-Positive Mothers

  • Sherwani, Nikita;Singh, Neha;Neral, Arvind;Jaiswal, Jyoti;Nagaria, Tripti;Khandwal, Onkar
    • Journal of Microbiology and Biotechnology
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    • 제32권9호
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    • pp.1098-1102
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    • 2022
  • The placenta is a captivating multifunctional organ of fetal origin and plays an essential role during pregnancy by intimately connecting mother and baby. This study explicates placental pathology and information about 25 placentas collected from the mothers infected with novel coronavirus (SARS-COV-2). So far, congenital transmission of SARS-CoV-2 seems to be remarkably uncommon in spite of many cases of COVID-19 during pregnancy. Out of the 25 placental tissue samples collected, none has shown gene expression of SARS-CoV-2 when confirmed by RT-PCR. At the same time, nasal and throat swab samples collected from newborns of SARS-CoV-2-positive mothers correspondingly tested negative by RT-PCR. The shielding properties of placental barriers against viral infections from mothers to newborns remains a mystery. Major histopathological findings have been recorded as choriodecidual tissue with necrosis, intramural fibrin deposition, chorionic villi with fibrosis, and calcification. Moreover, although recent findings are insufficient to prove direct placental transmission of COVID-19, the abundance of angiotensin-converting enzymes-2 (ACE-2) on the placental surface could potentially contribute to unpleasant outcomes during pregnancy as SARS-CoV-2 gains access to human cells via ACE-2. Finally, the significance of these findings is vague and needs further study.

한의 진단 지원 시스템의 시험 수행 및 평가 (Experiments and Assessment on Traditional Korean Medicine Diagnostic Support System)

  • 조우근;김명호;이상아;장명웅;최동준
    • 대한중풍순환신경학회지
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    • 제13권1호
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    • pp.63-70
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    • 2012
  • Object : Traditional Korean Medicine Diagnostic Support System(TKMDSS) is the diagnostic prescribing system based on ontology developed by Korea Institute of Oriental Medicine. We monitored and assessed its usefulness and searched for improvements. Methods : We collected 10 cases of stroke inpatients of Dongguk University Ilsan Oriental Hospital. They were diagnosed by primary care physician and another researcher who monitored using "TKMDSS" respectively. We compared the process and results of two diagnosis. Results : The diagnostic concordance rate between primary care physician and researcher were pretty high. Most of the problems were caused by expressions on symptoms inappropriate use of terminology. The severity of symptoms and vague symptoms which is hard to be diagnosed should be reflected and measured in this system. Conclusions : The problems were about terminology and definition. The terminology should be defined accurately and in-depth detail so that anyone can get the right information. If the problems were modified, "TKMMSS" could be utilized as supportive measures for oriental medicine doctors and students.

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설계 프로세스를 반영한 BIM 작성 기준(LOD)에 대한 연구 (A Study of LOD(Level of Detail) for BIM Model applied the Design Process)

  • 조현정;김연수;마영균
    • 한국BIM학회 논문집
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    • 제3권1호
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    • pp.1-10
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    • 2013
  • BIM(Building Information Modeling) ordering manuals and guidelines are diffused with the recent BIM activation. However, it is causing drawbacks such as an increase of work at each design stage and a decline of BIM application level that the standard of making up and managing BIM is vague and it includes comprehensive meaning. Therefore, this study aims to secure BIM work standard by establishing BIM making-out standard based on LOD(Level of Detail) classification considering domestic design process. It compared each definition of LOD by analyzing domestic and foreign BIM guideline examples, and figured out insufficiency of existing domestic and foreign design process and BIM guidelines. Moreover, it drew architects' work articles for promoting the progression of the efficient design process, and analyzed BIM requirements on design process, dividing BIM application scale by field. Through this analyzing process, it finally established BIM making-out standard classified by design process. The effects of establishing BIM making-out standard would include improving a division of labor and cooperation environment by creating integrated BIM model on design stages, advancing work efficiency by preventing a repetition and an increase of work, and upgrading project completeness and design quality. Besides, it can secure BIM work standard by clarifying responsibility for working steps. BIM making-out standard established by this study will contribute to developing the future BIM work standard document and BIM guideline as a data base.