• 한국정보과학회:학술대회논문집
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• 한국정보과학회 1999년도 가을 학술발표논문집 Vol.26 No.2 (1)
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• pp.129-131
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• 1999

다차원 데이터베이스에서 데이터분석을 위한 OLAP질의에 대한 응답 시간을 줄이기 위해 실체 뷰를 고려할 수 있다. 다차원 데이터베이스에서의 실체 뷰는 차원 테이블과 사실 테이블의 조인으로 구성되어 있는 조인 뷰를 형성하며 적절한 개수의 실체 뷰를 선택하는 일은 중요하다. 조인비용은 다차원 데이터베이스의 실체 뷰 선택에 있어서 가장 중요한 요소이다. 본 논문에서는 조인 비용을 구하기 위해서 실체 뷰의 계층정보를 이용하여 조인 테이블 추적하는 방법을 정형화하고 구현한다.

• 한국조리학회지
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• 제23권1호
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• pp.58-65
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• 2017

This study performed to test the effect of food neophobia on the formulated model on the relationships among perceived service attributes(food, employee, and physical attributes), brand trust, satisfaction and behavioral intention as perceived by franchise snack bar consumers. Total 299 respondents were used for statistical analysis and SPSS 21.0 and AMOS 21.0 program were employed. The findings of current study verified that food attribute among perceived service attributes has positively influence on brand trust and satisfaction, and the employee attribute has only effect on the brand trust. Additionally, the brand trust was critical predictor of satisfaction, but it was not significant antecedent of behavioral intention in context of franchise snack bar restaurant. Furthermore, this study found the moderating effect according to level of food neophobia on the designed hypothesizes, so it has been identified the importance of people's propensity about food neophobia can significantly effect on brand trust and satisfaction in franchise snack bar restaurant. These findings will contribute to provide meaningful suggestion to develop marketing strategic in franchise snack bar business as well as provide the theoretical evidence in the new segmentation.

• 한국소음진동공학회논문집
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• 제20권1호
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• pp.66-73
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• 2010

Vehicles experience the impact due to harsh road conditions. Contact with a barrier on a road induces vehicles to vibrate, which brings about an impact sound. The attenuation of the impact sound is an important issue since passengers may complain about the impact noise. However, the perfect removal of impact noise is not possible as most of impact noise is caused by external conditions. It is thus necessary to make vehicles to possess more desirable sound quality characteristic of impact sound. More research is needed on objective attributes of impact sound; it is not a simple matter since impact noise is transient in nature and has a high level of sound at an instantaneous moment. A new objective attribute of impact noise is designed by using wavelet transform. Wavelet transform is appropriate for the analysis of transient signals such as impact noise. The usefulness of new objective attribute, which is a sound metric, is examined by comparison with the mean subjective rating for real impact noise of passenger cars. The new sound metric has better correlation with the mean subjective rating than already existing sound metrics

• 품질경영학회지
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• 제47권4호
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• pp.713-723
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• 2019

Purpose: The purpose of this study is to develop a statistical program for capability analysis of measuring system and measurement process based upon KS Q ISO 22514-7. Methods: R is a powerful open source functional programming language that provides high level graphics and interfaces to other languages. Therefore, in this study, we will develop the statistical program using R language. Results: The R program developed in this study consists of the following five modules. ① Measuring system capability analysis with Type 1 study data: MSCA_Type1.R ② Measuring system capability analysis with Linearity study(Type 4 study) data: MSCA_Type4.R ③ Measurement process capability analysis with Type 1 study & Gage R&R study data: MPCA_T1GRR.R ④ Measurement process capability analysis with Type 4 study & Gage R&R study data: MPCA_T4GRR.R ⑤ Attribute measurement processes capability analysis : AttributeMP.R Conclusion: KS Q ISO 22514-7 evaluates measuring systems and measurement processes on the basis of the measurement uncertainty that was determined according to the GUM(KS Q ISO/IEC Guide 98-3). KS Q ISO 22514-7 offers precise procedures, however, computations are more intensive. The R program of this study will help to evaluate the measurement process.

• The Journal of Asian Finance, Economics and Business
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• 제7권1호
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• pp.131-140
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• 2020

The purpose of this study is to derive various clues for the establishment of marketing strategies for companies that produce and sell high-involvement products for Millennials who are not the subject of current consumption but who will lead future consumption. For this purpose, this study aimed to derive 17 factors of high-involvement product selection attributes through FGI, and its relationship on repurchase intention after make a variable through PCA. A total of 158 valid questionnaires were used, and IPA, independent sample t-test, regression analysis, and hierarchical controlled regression analysis were performed. The results showed that overall, external and internal selection factors had a positive influence on repurchase intentions, and in particular, appealing to internal and external selection factors in order to promote repurchase intention. Meanwhile, the Millennials were found to have no gender difference. Therefore, the company producing and selling high-involvement products suggests that it is necessary to make a priority effort to secure brand awareness, trust in product producers, store trust, and product self-reputation as components of internal selection factors. It was also concluded that more strategic efforts were needed to focus on and appeal to the characteristics of the Millennial itself rather than to consider gender differences.

• 한국인공지능학회지
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• 제6권2호
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• pp.17-22
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• 2018

According to the World Health Organization, the top 10 causes of death worldwide include heart disease. Heart diseases include coronary disease, which induces acute myocardial infarction. Ticagrelor drugs are being used to treat acute alliances, but it has become difficult to breathe due to the drugs. In a related study, Tobias predicted that uric acid causes acute respiratory distress independently of other factors, including BNP. And in the Ahmad study, serum uric acid numbers were related to the left ventricle depending on the level of uric acid. Experimental data are data used after 155 patients who received coronary intervention took ticagrelor. The research methods were leveraged by gradient decent algorithm and linear regression. In order to avoid overfitting in the experiment, training data and test data were separated into 70 and 30 percent respectively. The experimental results lacked the predictability of other attributes except DT in the correlation coefficient and crystal coefficient. However, all attributes related to dyspnea other than DT are determined to be related to causing relaxation of the heart in the left ventricle. Therefore, the attribute causing dyspnea is determined to be an attribute causing relaxation of the heart of the DT and left ventricle.

• 융합정보논문지
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• 제10권10호
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• pp.32-39
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• 2020

클라우드 환경의 대규모 인프라 구조에서는 응용프로그램들과 디바이스의 공유로 인하여 불법적인 접근권한 문제가 빈번하게 발생하기 때문에 이러한 공격에 적극적으로 대응하기 위해서는 상황별로 대비가 가능한 강화된 접근통제 시스템이 요구된다. 우리는 대규모 인프라 환경에 기반한 보안등급과 릴레이션 개념의 개체 속성 기반 접근통제 모델을 제시하였다. 본 모델은 주체와 객체에 무결성과 기밀성 등급을 부여하고 동일한 역할에 대해 서로 다른 서비스가 가능한 강화된 접근제어 특성을 가지며, 서비스와 관련된 릴레이션과 상태정보인 컨텍스트에 의해 역할과 권한을 배정함으로써 권한 관리의 유연성을 갖는다. 또한, 대학이라는 대규모 인프라 구조를 갖는 다중 서비스 환경에 적용한 응용 사례를 통하여 본 모델의 적용 가능성을 제시하였다.

• 가정과삶의질연구
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• 제6권1호
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• pp.117-129
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• 1988

The purposes of this study are 1) to explore the evaluating attribute of family life- insurance 2) to examine the relationship between evaluation attribute variables and level of consumer satisfaction/ dissatisfaction (CS/D), and 3) to investigate the sociodemographic variables and psychological variables which influence the purchase of life-insurance. The data used in this study include 432 households of 208 life-insurance purchasers and 224 non-purchasers Statistics used for the data analysis are x2, factor analysis, multiple regression and a discriminant analysis. The resulting major findings are as follows; 1) The evaluating attributes are saving function, convenience. economic payoff, safety for future accident, agreement of insurance, and reputation of brand. 2) Among these factors. the most important factors. in CS/D of life-insurance are saving function, and reputation of brand. 3) the purchase of life-insurance has been influenced by such sociodemographic variables as husband's age , family income, and family life-cycle. Psychological variables such as attitude of life, perceived risk, consumer attitude about insurance business did not influence the purchase of life -insurance significantly. As mentioned above, we can conclude that Korean purchasers of life-insurance are using irrational evaluating attributes. Therefore more education of the consumers and more information about life-insurance purchases are necessary. Especially low-income households and first step of family life-cycle families are turned out to need more education as well as more information.

• Journal of Electrical Engineering and Technology
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• 제10권3호
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• pp.1264-1274
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• 2015

Human action recognition received many interest in the computer vision community. Most of the existing methods focus on either construct robust descriptor from the temporal domain, or computational method to exploit the discriminative power of the descriptor. In this paper we explore the idea of using local action attributes to form an action descriptor, where an action is no longer characterized with the motion changes in the temporal domain but the local semantic description of the action. We propose an novel framework where introduces local action attributes to represent an action for the final human action categorization. The local action attributes are defined for each body part which are independent from the global action. The resulting attribute descriptor is used to jointly model human action to achieve robust performance. In addition, we conduct some study on the impact of using body local and global low-level feature for the aforementioned attributes. Experiments on the KTH dataset and the MV-TJU dataset show that our local action attribute based descriptor improve action recognition performance.

• 품질경영학회지
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• 제26권2호
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• pp.93-105
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• 1998

Many large scale discount stores try to enter the market in newly developed city areas. In order to sucessfully increase the market share, it is essential for them to understand customers' needs. In doing so, various forms of survey methods are often used and survey forms can influence respondents' decision. The main objective of this paper is to check consistency of different survey methods in terms of deriving the expected market share. In this paper, we a, pp.y two survey forms for both AHP and conjoint analyses using a randomized complete block design. Using AHP, we compare Kim's club, Carf, E-mart and Macro in terms of the following four customer attributes: parking facility, size of store, business hours, and special pricing policy. In conjoint analysis, we estimate the part-worth of each level of the customer's attribute so that one can design the best store which would optimizethe customer's attribute so that one can design the best store which would optimize the customer's utility. Empirical comparison results indicate very low consistency between the two methods. It implies the importance of verification methods of survey. We also analyze the impact of special pricing policy using a meta analysis. It turns out that older customers are a, pp.rently more sensitive to pricing policy.