• 한국의류학회지
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• 제36권2호
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• pp.218-230
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• 2012

This study examines the influence of innovativeness and price sensitivity on the purchase intention of smart wear. A total of 211 copies of data were analyzed to investigate a structural model and test research hypotheses using AMOS 7.0 package. The results were summarized as follows. First, fashion innovativeness and technology innovativeness negatively affected price sensitivity; however, information innovativeness positively affected price sensitivity. Second, technology innovativeness positively affected the purchase intention of smart wear; however, fashion innovativeness and information innovativeness did not affect the purchase intention of smart wear. Third, price sensitivity negatively influenced the purchase intention of smart wear. This study is useful for marketers and managers who establish marketing and a price strategy for smart wear in an exploration of the relation of consumer innovativeness, price sensitivity, and the purchase intention of smart wear.

• Asia pacific journal of information systems
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• 제31권3호
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• pp.335-357
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• 2021

As reproduction of images can be done with ease, copy detection has increasingly become important. In the duplication process, image modifications are likely to occur and some alterations are deliberate and can be viewed as attacks. A wide range of copy detection techniques has been proposed. In our study, content-based copy detection, which basically applies DCT-based features for images, namely, pixel values, edges, texture information and frequency-domain component distribution, is employed. Experiments are carried out to evaluate robustness and sensitivity of DCT-based features from attacks. As different types of DCT-based features hold different pieces of information, how features and attacks are related can be shown in their robustness and sensitivity. Rather than searching for proper features, use of robustness and sensitivity is proposed here to realize how the attacked features have changed when an image attack occurs. The experiments show that, out of ten attacks, the neural networks are able to detect seven attacks namely, Gaussian noise, S&P noise, Gamma correction (high), blurring, resizing (big), compression and rotation with mostly related to their sensitive features.

• 한국융합학회논문지
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• 제11권3호
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• pp.201-210
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• 2020

본 논문은 항공 관련 소셜미디어의 정보수용에 있어 이용 동기와 민감도, 성별과 연령을 융합하여 이용태도와 행동을 예측하기 위해 연구를 시행하였다. 구체적으로 성별과 연령에 따른 소셜미디어 정보수용의 차이, 이용 동기와 민감도는 정보수용에 어떤 영향을 미치는지 알아보고자 하였다. 이를 위해 2018년 4월 19일부터 5월 3일까지 온라인 전국 패널 20세 이상 성인을 대상으로 하여 성별과 연령의 편중을 막기 위해 고른 분포로 자료수집을 하였다. 연구결과, 성별과 연령에서 여성과 연령이 낮을수록 소셜미디어 정보수용에 긍정적인 영향을 미쳤다. 이용 동기는 정보수용에 정(+)의 영향을 미치는 것으로 나타났으며, 민감도에는 정보수용에 부(-)의 영향을 미치는 것으로 나타났다. 이를 통해 성별, 연령 등 이용자 계층과 이용 동기, 민감도가 정보수용에 영향을 준다는 것을 알 수 있었다. 또한, 민감도 요인의 부정적인 면도 파악할 수 있어, 항공 관련 소셜미디어 마케팅 전략의 기초자료로 활용할 수 있을 것으로 기대한다.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 1999년도 춘계공동학술대회-지식경영과 지식공학
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• pp.281-287
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• 1999

Decision class analysis (DCA) is viewed as a classification problem where a set of input data (situation-specific knowledge) and output data(a topological leveled influence diagram (ID)) is given. Situation-specific knowledge is usually given from a decision maker (DM) with the help of domain expert(s). But it is not easy for the DM to know the situation-specific knowledge of decision problem exactly. This paper presents a methodology for sensitivity analysis of DCA under incomplete information. The purpose of sensitivity analysis in DCA is to identify the effects of incomplete situation-specific frames whose uncertainty affects the importance of each variable in the resulting model. For such a purpose, our suggested methodology consists of two procedures: generative procedure and adaptive procedure. An interactive procedure is also suggested based the sensitivity analysis to build a well-formed ID. These procedures are formally explained and illustrated with a raw material purchasing problem.

• 대한임상검사과학회지
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• 제36권2호
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• pp.127-130
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• 2004

Analytical sensitivity on TDM test is the lowest concentration that can be distinguished from background noise. The aim of study was to evaluate analytical sensitivity that is also referred to as the lower limit of detection(LLD) about difference between zero calibrator and isotonic saline sample. We tested for 10 days with zero calibrators and 0.85% saline samples while running trilevel control samples under control. Raw data divided by two groups calculated mean and standard deviation from two sample populations and analytical sensitivity by ${\bar{X}}+2SD$. In comparison with isotonic saline samples and zero calibrators, there were significant differences in phenytoin, phenobarbital and vancomycin, etc. Especially analytical sensitivity on phenytoin is at the same level as the upper limit of analytical measurement range with $40{\mu}g/mL$. We think the cause of this is matrix interference. In conclusion, we were sure that standard protocol for analytical sensitivity as lower limit of analytical measurement range on TDM test must be measured with zero standard rather than an isotonic saline sample and type 1 reagent DW for reducing matrix effects within interactions between different materials in a mixture.

• 복식
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• 제66권2호
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• pp.1-14
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• 2016

This study was intended to investigate the influences that consumer's price sensitivity, bundle discount type, and price level of the male cosmetics have on consumer attitude. The design of this research was comprised of $2{\times}2{\times}2$ mixed design studies. The first element was high price sensitivity vs. low sensitivity, the second element was the bundle discount type (mixed leader vs. mixed-joint), and the third element was the price level of male cosmetics (high-price brand vs. low-price brand). The results of this study showed that price sensitivity, bundle discount type and price level of male cosmetic had a statistically significant interaction effect on the consumer's quality perception. The quality perception of low-cost brands for high price sensitivity/mixed-joint bundle group was low. The quality perception of low-cost brands for mixed-leader bundled groups did not change significantly even when the price sensitivity became higher. However, it can be seen as the same result that the overall value is higher when suggested the price information in Mixed-leader bundle than Mixed-joint bundle. In particular, this study suggests that price information should be presented in mixed-leader bundles for high price sensitivity and low cast brands.

• Management Science and Financial Engineering
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• 제10권2호
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• pp.103-118
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• 2004

$\epsilon$-sensitivity analysis is a kind of methods for performing sensitivity analysis for linear programming. Its main advantage is that it can be directly applied for interior-point methods with a little computation. Although $\epsilon$-sensitivity analysis was proposed several years ago, there have been no studies on its relationship with other sensitivity analysis methods. In this paper, we discuss the relationship between $\epsilon$-sensitivity analysis and sensitivity analysis using an optimal basis. First. we present a property of $\epsilon$-sensitivity analysis, from which we derive a simplified formula for finding the characteristic region of $\epsilon$-sensitivity analysis. Next, using the simplified formula, we examine the relationship between $\epsilon$-sensitivity analysis and sensitivity analysis using optimal basis when an $\epsilon$-optimal solution is sufficiently close to an optimal extreme solution. We show that under primal nondegeneracy or dual non degeneracy of an optimal extreme solution, the characteristic region of $\epsilon$-sensitivity analysis converges to that of sensitivity analysis using an optimal basis. However, for the case of both primal and dual degeneracy, we present an example in which the characteristic region of $\epsilon$-sensitivity analysis is different from that of sensitivity analysis using an optimal basis.

• 디지털융복합연구
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• 제12권6호
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• pp.171-180
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• 2014

최근 주요 기업들은 쇼핑 애플리케이션을 마케팅 전략으로 개발하여 이용하고 있으며, 이러한 전략을 효과적으로 실행하는데 무게를 두고 있다. 이러한 쇼핑 애플리케이션의 대표적인 요소들은 상호작용성 그리고 정보제공성, 이용편리성이 있다. 이에 본 연구는 애플리케이션의 특성이 애플리케이션의 선호도에 미치는 영향에 대해 실증적으로 분석하고, 소비자들의 가격민감도에 영향을 미치는 요인을 찾아 효과적인 쇼핑애플리케이션의 활용전략을 제시한다. 본 연구의 결과는 상호작용과 정보제공성, 이용편리성은 선호도에 긍정적인 영향을 미치는 것으로 나타났다. 또한 애플리케이션의 특징이 선호에 영향을 미칠 때, 가격민감도의 조절효과를 살펴본 결과, 가격민감도가 높은 집단에서는 정보제공성이 가장 유의한 영향으로 나타났고 다음으로 상호작용성과 이용편리성이 유의하다는 결과가 나타났다. 가격민감도가 낮은 집단에서는 정보제공성은 유의하지 않았다. 이러한 결과를 기반으로 기업의 마케팅적 시사점을 도출하였다.

• 경영정보학연구
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• 제4권2호
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• pp.133-153
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• 2002

인터넷 사용의 증가로 탐색비용이 낮아져 소비자들이 얻을 수 있는 정보의 양은 증가하였으며 가격에 대한 정보 또한 쉽게 취득하고 비교할 수 있게 되었다. 그 결과 동일제품을 취급하는 인터넷 쇼핑몰 간의 가격 경쟁이 심화되고 있으며, 소비자들은 제품 구매결정에 있어 다른 요소들보다 가격에 더욱 민감하게 반응하고 있다. 본 연구는 인터넷 쇼핑몰의 가격 경쟁을 줄일 수 있는 차별화 전략을 모색하고자 인터넷 쇼핑몰의 가격 민감도에 영향을 미치는 요인을 살펴 보았으며, 가격 민감도에 따라 선호서점에 대한 선택이 달라지는가를 분석해 보았다. 연구대상은 국내에서 가격 경쟁이 치열한 인터넷 서적시장을 선택하였으며 연구 방법은 인터넷 서점에서 구매 경험이 있는 소비자를 대상으로 설문조사를 실시하였다. 연구결과 가격민감도가 선호서점의 유형선택에 영향을 미치는 것으로 분석되었다. 본 연구는 인터넷 쇼핑몰의 가격민감도 영향요인을 도출하기 위한 탐색적인 연구란 점에서 의의가 있으며 향후 제품 특성 및 품질에 차이가 있는 비동질 제품 등 다양한 시장을 대상으로 한 연구가 수행되어야 할 것이다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 A
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• pp.119-121
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• 2003

In small signal stability analysis of power systems, eigenvalue analysis is the most useful method and the detailed modeling of generator gives an important effect to the eigenvalues. Generator full model is used for precise dynamic analysis of generators and controllers while two-axis model is used for multimachine systems because of the reduced order of the state matrix. Also, the eigenvalue sensitivity coefficients are used for optimization of controller parameters to improve system stability. This paper compare the first order eigenvalue sensitivity coefficients of controllers in case of generator full model with those of two-axis model. As a result of an example the estimated eigenvalues using sensitivity coefficients in case of generator full model is very close to those of state matrix within 1% error ratios.