• 제목/요약/키워드: Consumption Value Model

검색결과 313건 처리시간 0.027초

소비 전력 테이블 생성을 통한 부채널 분석의 성능 향상 (Improved Side Channel Analysis Using Power Consumption Table)

  • 고가영;진성현;김한빛;김희석;홍석희
    • 정보보호학회논문지
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    • 제27권4호
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    • pp.961-970
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    • 2017
  • 차분전력분석공격은 추측하는 비밀 정보 값에 따라 계산한 중간 값을 전력 소비 모델에 대입하여 전력 소비량을 구한 후 실제 발생한 전력 소비량과 함께 분석하여 암호화에 쓰인 비밀 정보 값을 복원한다. 이 때 흔히 쓰이는 전력 소비 모델로는 해밍 웨이트 모델이나 해밍 디스턴스 모델이 있으며 좀 더 정확한 전력 소비 모델을 구하기 위해서 전력 모델링 기법을 이용한다. 하지만 공격 타켓이 되는 장비가 가정한 전력 소비 모델과 상이한 경우 중간 값에 해당하는 전력 소비량을 옳게 반영하지 못하는 문제가 발생한다. 본 논문에서는 실제 공격 장비에서 측정한 소비 전력을 테이블 형태로 저장하여 전력 소비 모델로써 이용하는 방법을 제안한다. 제안하는 방법은 암호화 과정에서 활용 가능한 정보(평문, 암호문 등)가 쓰이는 시점에서의 소비 전력을 이용한다. 이 방법은 사전에 탬플릿 구성을 할 필요가 없으며 실제 공격 장비에서 측정한 소비 전력을 이용하기 때문에 해당 장비의 소비 전력 모델을 정확하게 반영한다. 제안하는 방법의 성능을 확인하기 위해 시뮬레이션과 실험을 진행하였으며 제안하는 방법의 성능이 기존의 전력 모델링 기법보다 부채널 공격 성능이 향상됨을 확인하였다.

Consumption Value Effects on Shopping Mall Attributes: Moderating Role of On/Off-line Channel Type

  • Cha, Seong-Soo;Park, Cheol
    • 유통과학연구
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    • 제15권6호
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    • pp.5-12
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    • 2017
  • Purpose - This study is to investigate the effects of consumption values of retailers on the importance of store attributes, and to determine the influence on the consumption values of consumers who shop at complex shopping malls on the empirical and functional attributes in those malls as well as on the influence of on/off-line channels. Research design, data, and methodology - With 344 surveyed questionnaires, this study was conducted by using SPSS 22.0 to verify the reliability and validity of the measured variables. Structural equation model (SEM) was employed as a statistical method for the hypotheses test of this study. Results - The results showed that hedonic value has more influence on the importance of empirical attribute than that of functional attribute in shopping malls. In addition, practical value has more influence on functional attributes than empirical properties of shopping malls. However, these relationships showed the difference in on/off-line channels. As for off-line channels, consumers' consumption values were more influential on empirical attributes, while functional attributes were more important in on-line channels Conclusions - This study analyzed the influence on the importance of the consumption values in store attributes, and the effects of each channel with suggesting practical implications.

Applying Consumer Value Theory to Determine Consumer Behavior in Terms of Online and Offline Shopping During COVID-19 Pandemic

  • Woohyoung KIM;Hosung CHANG
    • 유통과학연구
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    • 제22권5호
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    • pp.67-79
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    • 2024
  • Purpose: The purpose of this study is to shopping medium determinants and consumer behavior differences based on the value of consumption. Methodology: The subjects of the survey were adult men and women in their 20s or older living in Korea, and 283 valid responses were obtained. A Logit model was used to identify consumption value factors and shopping medium choices. A t-test was conducted to analyze the differences between consumer behavior based on preferred shopping medium (on/offline). Results: The inclusion of community-oriented factors such as eco-friendliness and social contributions lead to higher likelihood of choosing offline shopping. In addition, consumers who value self-expression and who are price sensitive are more likely to choose online stores. Conclusions: It was found that community-oriented factors lead shoppers to choose offline shopping, and the need for self-expression lead shoppers to choose online stores.

정규 확률과정을 사용한 공조 시스템의 전력 소모량 예측에 관한 연구 (A Study on the Prediction of Power Consumption in the Air-Conditioning System by Using the Gaussian Process)

  • 이창용;송근수;김진호
    • 산업경영시스템학회지
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    • 제39권1호
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    • pp.64-72
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    • 2016
  • In this paper, we utilize a Gaussian process to predict the power consumption in the air-conditioning system. As the power consumption in the air-conditioning system takes a form of a time-series and the prediction of the power consumption becomes very important from the perspective of the efficient energy management, it is worth to investigate the time-series model for the prediction of the power consumption. To this end, we apply the Gaussian process to predict the power consumption, in which the Gaussian process provides a prior probability to every possible function and higher probabilities are given to functions that are more likely consistent with the empirical data. We also discuss how to estimate the hyper-parameters, which are parameters in the covariance function of the Gaussian process model. We estimated the hyper-parameters with two different methods (marginal likelihood and leave-one-out cross validation) and obtained a model that pertinently describes the data and the results are more or less independent of the estimation method of hyper-parameters. We validated the prediction results by the error analysis of the mean relative error and the mean absolute error. The mean relative error analysis showed that about 3.4% of the predicted value came from the error, and the mean absolute error analysis confirmed that the error in within the standard deviation of the predicted value. We also adopt the non-parametric Wilcoxon's sign-rank test to assess the fitness of the proposed model and found that the null hypothesis of uniformity was accepted under the significance level of 5%. These results can be applied to a more elaborate control of the power consumption in the air-conditioning system.

소비가치, 웰빙태도가 웰빙지향행동에 미치는 영향 (The Effects of Consumption Values and Well-being Attitude on Well-being Oriented Behavior)

  • 박광희
    • 한국의류산업학회지
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    • 제13권1호
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    • pp.73-81
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    • 2011
  • The purpose of this study was to examine the effect of consumption values on well-being attitude and the effect of well-being attitude on well-being oriented behavior. This study administered a questionnaire survey to adults between 10s and 60s who lived in Seoul, Daegu, and Kyungbuk region. Data collected from 285 respondents were analyzed by descriptive statistics, t-tests, ANOVA tests, factor analyses, and structural equation modeling (SEM). The model of the study was tested by structural equation modeling and the results of SEM revealed positive effects of social value and functional value on well-being attitude and positive effect of well-being attitude on well-being oriented behavior. The results of t-tests and ANOVA tests showed that there were significant differences in consumption values, well-being attitude, and well-being oriented behavior among marital status, age, educational level, and income level groups.

패션 명품 확장 브랜드의 코스메틱에 대한 MZ세대의 양면적 소비 의도에 미치는 영향 변인에 관한 연구 (An Identification of Determinants to Ambivalent Purchase Intention of Fashion Luxury Brand Expanded Cosmetic for MZ Generation)

  • 송지안;장성호
    • 한국콘텐츠학회논문지
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    • 제21권3호
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    • pp.47-67
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    • 2021
  • 본 연구는 MZ세대가 추구하는 가치 소비가 패션 하우스의 코스메틱 소비 상황을 고려해 가치 소비에 대한 이해와 이들의 성향에서 관찰되는 양면적 소비 의도에 영향을 미치는 선행요인을 파악하기 위한 목적으로 하였다. 본 연구에서 제안하는 연구 모형과 연구 가설을 통계적 유의수준에서 검증하기 위해 MZ세대를 대상으로 설문조사를 실시하였고, 표본(총 286명)으로부터 수집된 자료는 구조방정식 모형 분석을 사용하였다. 그 결과, 감정적, 사회적 소비 가치는 MZ세대의 소비 의도에 큰 영향을 미치는 변수로 나타났다. 첫째, 자아존중감은 감정적 소비 가치에 영향을 미치는 것으로 통계적 유의수준에 나타났다. 둘째, 물질주의는 감정적, 사회적 소비 가치에 유의미한 영향을 주는 것으로 나타났다. 셋째, 공적 자기의식은 사회적 소비 가치에 영향을 미치는 것으로 나타났다. 즉, MZ세대들은 패션 하우스의 뷰티 브랜드에서 제시하는 뷰티 트렌드를 추구하고, 높은 소비 가치로 지각하며, 패션 하우스의 코스메틱을 사용함으로써 사회적으로 차별화될 수 있다는 과시적 소비성향을 가지고 있는 것으로 나타났다.

소비가치가 친환경 화장품 구매행동에 미치는 영향 (The Effect of Consumption Value on Eco Friendly Cosmetics Purchasing Behavior)

  • 강현경;조혜경
    • 한국콘텐츠학회논문지
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    • 제21권2호
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    • pp.562-571
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    • 2021
  • 본 연구는 친환경 화장품에 대한 소비가치가 소비자 효과성과 시장 영향력, 그리고 친환경 화장품 구매행동과의 관계를 공분산 모델을 통해 검증하였다. 조사대상은 최근 6개월 이내 친환경 화장품을 구매한 적이 있는 20대 이상 여성 소비자로 2020년 5월 17일부터 5월 30일까지 온라인 전문조사기관의 패널을 통해 300부를 최종분석에 사용하였다. 분석결과, 친환경 화장품에 대한 소비가치로 기능적 가치, 사회적 가치, 녹색 소비가치가 도출되었다. 사회적 가치와 녹색소비가치는 소비자 효과성과 시장 영향력에 유의한 영향을 미치는 것으로 나타났으나 기능적 가치는 영향관계가 확인되지 않았다. 또한, 소비자 효과성과 시장 영향력은 친환경 화장품 구매행동을 증진 시키는 것으로 확인되었다. 본 연구를 통해 친환경 화장품 구매에 있어서 환경문제에 대한 지각수준(소비자 효과성, 시장 영향력)이 가지는 중요성을 규명하였고 소비자들에 대한 이해를 바탕으로 친환경 제품 개발과 마케팅전략 수립에 유용한 자료로 활용되기를 기대한다.

사회적기업 제품의 지각된 가치가 기억, 태도, 그리고 충성도에 미치는 영향 (Effect of Perceived Value on Memories, Attitudes, and Loyalty: Social Enterprise Products)

  • 박상금;이용기;유동근
    • 유통과학연구
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    • 제13권12호
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    • pp.73-84
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    • 2015
  • Purpose - Various social issues have arisen since the beginning of the 21st century therefore, enterprises that disregarded social issues have become unsustainable, and social enterprises have appeared to address these issues. A social enterprise is a social mission-focused organization that uses a market-based strategy and has a vulnerable business structure. To be self-sustainable, a social enterprise should make consumers aware of the value that it provides and secure its profitability through consumer consumption. From this perspective, this study investigates the relationship between perceived value (utilitarian and hedonic) and loyalty, and examines how memory and attitudes play mediating roles between perceived value and loyalty. For these purposes, the author developed a structural model consisting of several variables. In this model, perceived value, which was utilitarian and hedonic, was proposed to affect the memory and attitudes toward social enterprise products, thus increasing loyalty. Therefore, memory and attitudes were proposed as core mediating variables between perceived value and loyalty. Research design, data, and methodology - To analyze the proposed model, data were collected from 582 respondents and analyzed using SPSS 21.0 and AMOS 21.0. To test unidimensionality and the nomological validity of the measures of each construct, we employed a scale refinement procedure. The results of the reliability test with Cronbach's α and confirmatory factor analysis warranted the unidimensionality of the measures for each construct. In addition, the nomological validity of the measures was warranted from the results of the correlation analysis. The result of the overall model analysis demonstrated a good fit (χ2=529.881, df=144, χ2/df=3.680, p-value=0.000, GFI=0.905, NFI=0.948, CFI=0.961, RMR=0.036, RMSEA=0.068). Results - The findings are summarized as follows. First, the hedonic and utilitarian value of social enterprise products had positive effects on memory and attitudes. Second, the hedonic value of social enterprise products more strongly affects memory and attitudes than utilitarian value. Third, memory and attitudes had positive effects on loyalty. Lastly, memory had a stronger effect on loyalty than attitudes. Conclusions - The purchase rate of social enterprises' products increases only if the products are included in the "information search" and "alternative evaluation" processes in consumers' purchase decision-making processes. Therefore, a social enterprise must actively promote the fact that it pursues a social value, and shares both the hedonic and utilitarian values of its products. Accordingly, because hedonic value has a more significant impact on a company and attitudes, a social enterprise should develop hedonic values for product consumption, thereby leading consumers who care about value consumption to purchase its products. Moreover, a social enterprise must maintain good memories and attitudes for consumers because memory does not change over time, although attitude does. The limitations of this study and suggestions for future research are as follows. This study viewed "consumer loyalty" as the success factor of social enterprises, thereby considers an "increase in sales" as the success factor. Therefore, in future studies, diverse factors, including social contribution and word-of-mouth intention, should be regarded. In addition, future studies need to thoroughly review and make assurances about the relationship between memory and attitude.

주성분 분석과 다중회귀모형을 사용한 자동차 건조 공정의 히트펌프 건조기 소모 전력 분석 (Analyses of Power Consumption of the Heat Pump Dryer in the Automobile Drying Process by using the Principal Component Analysis and Multiple Regression)

  • 이창용;송근수;김진호
    • 산업경영시스템학회지
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    • 제38권1호
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    • pp.143-151
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    • 2015
  • In this paper, we investigate how the power consumption of a heat pump dryer depends on various factors in the drying process by analyzing variables that affect the power consumption. Since there are in general many variables that affect the power consumption, for a feasible analysis, we utilize the principal component analysis to reduce the number of variables (or dimensionality) to two or three. We find that the first component is correlated positively to the entrance temperature of various devices such as compressor, expander, evaporator, and the second, negatively to condenser. We then model the power consumption as a multiple regression with two and/or three transformed variables of the selected principal components. We find that fitted value from the multiple regression explains 80~90% of the observed value of the power consumption. This results can be applied to a more elaborate control of the power consumption in the heat pump dryer.

The Effect of Consumption Value of Alternative Protein Products on Self-Efficacy and Purchase Intention

  • Choo-Yeon KIM;Gyu-Ri KIM;Seong-Soo CHA
    • 융합경영연구
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    • 제12권2호
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    • pp.27-36
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    • 2024
  • Purpose: As the number of vegetarians continues to rise in tandem with the development of consumer culture, a novel economic trend named 'Vegenomics' has surfaced. In addition, as interest in social and environmental sustainability such as health, environment, and animal welfare grows due to the COVID-19 pandemic, the alternative protein food market is expanding, focusing on plant-based alternative meat. Research design, data, and methodology: Therefore, this study aims to investigate the impact of the consumption value of alternative protein products on self-efficacy and purchase intention. This study collected a total of 187 questionnaires by conducting an online survey from May 1 to July 10, 2023, to verify the research model and hypothesis. The collected data were subjected to exploratory factor analysis, confirmatory factor analysis, and discriminant validity analysis using SPSS 20.0 and AMOS 20.0 programs for structural equation modeling. Results: The results of analyzing consumers' self-efficacy and purchase intention regarding the functional value, health-oriented value, ethical value, and ecological value of alternative protein products are as follows. First, among the consumption values of alternative protein products, ecological value was found to have a significant positive (+) effect on self-efficacy. Second, consumers' self-efficacy for alternative protein products was found to have a significant positive (+) effect on purchase intention. Conclusion: This study is anticipated to provide valuable insights for the formulation of effective marketing strategies for alternative protein products and the development of products that align with consumer needs.