• 제목/요약/키워드: paired comparison

검색결과 549건 처리시간 0.024초

Effects of comparison interval and order on subjective evaluation test of loudness

  • Yonshida, Junji;Hasegawa, Hiroshi;Kasuga, Masao
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2002년도 ITC-CSCC -3
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    • pp.1792-1795
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    • 2002
  • In this paper we investigated effects of the presentation time interval on a subjective evaluation test of loudness. We carried out paired comparison experiments of pure tones loudness with changing the time interval of the comparison. As the results, two characteristic effects were obtained. The difference limen of the loudness was almost proportional to the time interval in below 10 s and was almost the same value of 1.5 dB in above 10 s. On the other hand, the effect of the presentation order was smallest at the time interval of about 5 s.

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Methods of pairwise comparisons and fuzzy global criterion for multiobjective optimization in structural engineering

  • Shih, C.J.;Yu, K.C.
    • Structural Engineering and Mechanics
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    • 제6권1호
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    • pp.17-30
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    • 1998
  • The method of pairwise comparison inherently contains information of ambiguity, fuzziness and conflict in design goals for a multiobjective structural design. This paper applies the principle of paired comparison so that the vaguely formulated problem can be modified and a set of numerically acceptable weight would reflect the relatively important degree of multiple objectives. This paper also presents a fuzzy global criterion method ($FGCM_{\lambda}$) included fuzzy constraints that coupled with the objective weighting rank obtained from the modified pairwise comparisons for fuzzy multiobjective optimization problems. Descriptions in sequence of this combined method and problem solving experiences are given in the current article. Multiobjective design examples of truss and mechanical spring structures illustrate this optimization process containing the revising judgement techniques.

근대 문화유산의 평가 기준과 상대적 중요도에 관한 연구 (A Study on the Value Criteria and Relative Importance for Conservation of Modern Cultural Heritage)

  • 박재민;성종상
    • 한국조경학회지
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    • 제41권1호
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    • pp.12-20
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    • 2013
  • 본 연구는 지역주민, 향토사학자들이 찾아낸 근대 문화유산을 1차적으로 평가할 수 있는 기준을 제공하기 위함이다. 최근 근대 문화유산을 보전하기 위해 정부 차원에서 등록문화재 제도를 도입하고 있으나, 정부와 전문가의 손길이 닿지 않는 곳곳에 숨겨진 지역 문화유산의 발굴을 위해서는 지역에 기반한 현황조사가 필요하다. 하지만 현재의 기준은 서술적으로 기술되어 있어 다소 모호하고, 일부 가치만을 반영하고 있어 적용하는데 어려움이 있다. 반면, 80년대 이후 서구 유럽에서도 유사한 논의가 전개되었으며, 평가기준에 있어 초기 건축적, 미학적 가치만이 아닌 사회문화적, 학술적 가치와 최근에는 경제적 가치를 중요한 평가가치로 제시하며 발전해 왔다. 이에 본 연구에서는 서양에서 시계열적으로 확장되어온 문화유산의 선정가치를 참조하여, 보전 가치와 관련한 역사적, 미학적, 사회 문화적, 학술적 가치, 활용 가치와 관련한 교육적, 경제적 가치로 구분하여 재구성하여 제안하였다. 다만 선정된 가치를 동일한 수준으로 평가하는 것이 적절하지 않음에 따라, 쌍대비교(paired comparison)를 이용하여 상대적 중요도와 값을 측정하였다. 그 결과, 전통적으로 중요한 가치로 인식되었던 역사적 가치는 여전히 가장 주요한 선정 기준이었음을 확인하였다. 반면, 과거 중요한 가치였던 미학적 가치는 새롭게 등장한 사회 문화적 가치 비해 낮게 평가되었다. 개별 시설의 아름다움보다는 근대문화유산의 사회, 환경적 관계를 보다 중요시함을 알 수 있었다. 활용가치의 경우, 보전 가치에 비해 상대적으로 낮게 평가되었다. 본 연구의 의의는 현재 건축적 가치와 미학적 가치 중심으로 평가되어 사라지고 있는 근대 문화유산에 대해 다각화된 가치를 선정 기준으로 반영함으로써, 지역민 스스로도 지역 내 근대 문화유산을 비교적 쉽게 평가할 수 있도록 하기 위함이다.

아름다운 산림풍경 유형의 선호도 및 이미지 특성에 관한 연구 (A Study on the Image and Visual Preference for the Beautiful Forest Scenery types in Korea)

  • 이연희;박찬우;하시연
    • 한국산림과학회지
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    • 제104권4호
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    • pp.685-696
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    • 2015
  • 본 연구는 국립공원의 아름다운 풍경사진을 모집단으로 분류한 22개의 아름다운 산림풍경 유형을 유형별 사진의 매수 비율과 인문자원 유형의 제외 등을 통해 선발한 10개의 풍경유형에 대한 선호경향 도출과 이미지 분석을 위해 실시되었다. 풍경유형의 선호도 평가는 편차치(Z척도)와 일대비교법을 사용하였고, 풍경유형의 이미지 분석은 SD법을 사용하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 편차치와 일대비교법에 의한 풍경유형의 선호도 평가 결과, 각 풍경유형의 요소 및 특성이 다름에도 불구하고 대체로 유사한 경향을 나타내어 평가 결과의 일관성을 확인할 수 있었다. 분석 결과, 임내풍경, 계곡과 바위와 같은 풍경에 대한 선호도가 높게 나타났고, 다음으로 능선 풍경, 기암봉우리의 암릉, 폭포와 절벽 풍경에 대한 선호도가 높았다. 한편 고사목 군락의 풍경은 가장 낮게 평가되었다. 둘째, SD법에 의한 풍경유형의 이미지 평가 결과, 요인 1 '신비로운 매력', 요인 2 '화려한 색감', 요인 3 '생동감 다양함'으로 구분되었다. 각 요인에 대한 풍경유형의 분포를 살펴보면 '신비로운 매력'의 이미지는 능선 풍경으로부터, '화려한 색감'의 이미지는 색으로 표현되는 계절감으로부터, '생동감 다양함'의 이미지는 물과 단풍, 기암봉우리의 동적이고 다양한 변화로부터 기인한 것으로 확인되었다.

그래프 모형을 이용한 지수분포 모수들의 기하평균 비교에 관한 연구 (On Multiple Comparison of Geometric Means of Exponential Parameters via Graphical Model)

  • 김대황;김혜중
    • 응용통계연구
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    • 제19권3호
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    • pp.447-460
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    • 2006
  • 본 연구에서는 확률모형의 모수로부터 얻어지는 여러 형태의 함수간의 크기를 다중 비교 하는 방법을 제안하고자 한다. 이 방법은 비교대상인 모수 함수 간의 선호확률을 베이지안 방법으로 추정하고, 이들로부터 얻어지는 선호행렬을 이용한 새로운 다중비교법이다. 이러한 방법의 제안에 필요한 이론과 비교기준을 고안하였으며, 응용 예로 제안된 방법을 s의 독립인 지수분포 모수의 기하평균 크기 비교에 적용하였다.

가치대상에 따른 주부의 도구적 가치의 차이 비교 - 가정생활과 가정외의 생활을 중심으로 - (A Comparison Test on Difference of Homemakers' Instrumental Values by Objects)

  • 황덕순
    • 가정과삶의질연구
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    • 제15권4호
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    • pp.355-368
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    • 1997
  • This study explored the instrumental values of homemakers by object family living and other social living. Homemakers' instrumental values on family living were compared with those on other social living. Through this it make to explain differences in instrumental values on 2 objects. 650 homemakers were adapted as data. The data were analyzed by frequency percentage means one-way ANOVA duncan-test and paired T-test The results showed significant differences in instrumental values by objects.

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APPLYING FUZZY MATHEMATICS TO QUANTIFYING HUMAN RESPONSES

  • R.C.Steinlage;T.E.Gantner;Lim, P.Y.W.
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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    • pp.1362-1365
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    • 1993
  • Fuzzy mathematics is used to elicit and evaluate human psychophysical responses in panel tests. The fundamental instrument used is a bar graph whose data is then converted to a paired comparison matrix. Form this matrix we use the theory of Perron and Froebenius to obtain an eigenvalue and eigenvector which indicates not only the panelist's comparitive responses but also the consistency of the responses from that panelist. Tests were done to evaluate the procedure.

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검사법의 일치도 평가를 위한 분석기법 (Statistical Test of Agreement between Measurements in Method-comparison Study)

  • 박선일;오태호
    • 한국임상수의학회지
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    • 제28권1호
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    • pp.108-112
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    • 2011
  • In clinical settings, researchers often want to assess agreement between two measurements (or tests) of the same continuous variable. For example, when new point-of-care analyzer for testing blood glucose level were introduced clinicians need to compare results from standard or established laboratory method of measurement to those of new or point-of-care analyzer. The question in a method-comparison study would either of two different methods be used to measure the same variable equivalently. In this paper common misuse of statistical methodologies seen in the medical literatures such as correlation coefficient and paired t-test are discussed. The Bland-Altman technique has been widely used for this purpose and provides a graphic in presentation of the findings from a method-comparison study, with a mean value of measurement, this bias and the limits of agreement. For ease of application and interpretation of this technique we discussed the analysis procedure and illustrated with two worked examples. Finally, a number of alternative ways in which data can be analysed and reported in such studies were reviewed.

흡연 대학생의 목표달성방법 합의가 금연목표달성에 미치는 효과 (Effect of an Agreement on Means to Achieve Smoking Cessation Goals among College Student Smokers)

  • 최인희
    • 대한간호학회지
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    • 제35권7호
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    • pp.1362-1370
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    • 2005
  • Purpose: The purpose of this study was to identify the degree of attaining a smoking cessation goal when an agreement on means to achieve smoking cessation among male college student smokers was established. Method: This study was planned as a nonequivalent control group non-synchronized design and the sample was divided into an agreement group and a comparison group by convenience sampling in a college of G city. The data was analysed with SPSS Win10.0 using a Likelihood $x^2-test$, Odds ratio, Paired t-test and ANCOVA. Result: The theory that the degree of smoking cessation will be higher in the agreement group than the Comparison group was rejected (${\delta}$ = 2.567, p = .055). The theory that nicotine dependency will be lower in the agreement group than the comparison group was supported (F = 3.965, P = .049); however, the theory that the number of cigarettes smoked per day will be lower in the agreement group than the comparison group was rejected (F = 1.342, p = .252). Conclusion: It has been shown that an agreement on means to achieve smoking cessation goals is a key factor to success in quitting smoking.

농촌거주 외짝가족의 식생활관리 -부부가족과의 비교- (The Odd Pair Family's Dietary management in rural, Korea - Comparison with the Pair Family -)

  • 이승교;원향례;정금주
    • 한국지역사회생활과학회지
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    • 제16권1호
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    • pp.89-103
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    • 2005
  • Recently the rural Korea has been remarkedly changed of family and social value in accordance with the development of industry. The lower economic class made by social economic growth is widespread with increasing aged, specially odd pair family in rural. The purpose of this study was to investigate to help and keep improve health of rural lower economic class, family system by comparing and analyzing the dietary management, between pair and odd pair family, and to get the data helpful the right guidance for rural. The subjects 1870 collected in 9 provinces by sampling with probability proportional to size (PPS). Questionnaire about dietary habit, food cultivation, production and preservation survey was conducted by trained interviewers. The main results were as follows : 1) The characteristics of odd pair families, head of household was female(77%), over 65 years(84.9%), small family(1.76 persons) and lower education(male 7.5 years, female 3.1 years) status. 2) As the states of diets of odd pair family, having breakfast(87.1 %) but one or two kinds of side dishes(31.3 %) only possible to guess lower status of food intake balance. Nutritional supplements(21. 7 %) was lower than that of paired family. 3) The aspects of dietary habit of odd pair family, no instant foods(70.7%), no snack(38.4%) no dine out(69.2%) were common. 4) Dietary habit scores were 7.78 points of odd pair family compared 8.34 points of paired family. 5) Food purchase place of odd pair family was market(44.2%) but super-market(42.7%) of paired family. 6)In odd pair family, seldom traditional dish preparation(62.0%) but prepared winter kimchi(81.9%), comparing seldom traditional dish(38.6%) and winter kimchi(96.4%) in paired family. 7)The food cultivation state was surveyed, pepper( 42.2 %) and chinese cabbage( 43.9 %) were consumed after cultivation, but sesame(59.4%), bean sprout(90.2%), tofu(92.8%) and egg(93.3%) were consumed by purchase in odd pair family.8) Food cultivation score of odd pair family was 2.98/12points significantly lower than 4.50/12 points of paired family(p<0.01). 9) At the status of fermentation food production in odd pair family, Duenjang(72.1 %) and Gochujang(69.7%) Kanjang(68.3%) Kimchi(82.1 %) and Meju(68.3%) were high rate of production, but more frequently producted in pair family. 10) The score of fermentation food production of odd pair family was 8.57/12points but significantly lower than 10.24/12 points of pair family(p<0.0001). 11) Food preservation score 0.48/6 points in odd pair family was not significantly different than that of pair family(1.07/6points).

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