• 한국환경보건학회지
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• 제45권5호
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• pp.457-464
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• 2019

Objectives: Quantitative structure-activity relationship (QSAR) is one of the effective alternatives to animal testing, but its credibility in terms of toxicity prediction has been questionable. Thus, this work aims to evaluate its predictive capacity and find ways of improving its credibility. Methods: Using $TOPKAT^{(R)}$, OECD toolbox, and $Derek^{(R)}$, all of which have been applied world-wide in the research, industrial, and regulatory fields, an analysis of prediction credibility markers including accuracy (A), sensitivity (S), specificity (SP), false negative (FN), and false positive (FP) was conducted. Results: The multi-application of QSARs elevated the precision credibility relative to individual applications of QSARs. Moreover, we found that the type of chemical structure affects the credibility of markers significantly. Conclusions: The credibility of individual QSAR is insufficient for both the prediction of chemical toxicity and regulation of hazardous chemicals. Thus, to increase the credibility, multi-QSAR application, and compensation of the prediction deviation by chemical structure are required.

• 국제지역연구
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• 제15권1호
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• pp.315-339
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• 2011

본 연구는 한국의 경제적 위상에 비해 국가브랜드가치가 저평가되어 있는 상황에서 일본소비자를 대상으로 우리나라 소비재제품의 브랜드 신뢰성이 국가이미지와 종속변수(지각된 품질, 지각된 위험, 정보비용절약) 사이에서 매개적 역할을 하는지에 초점을 두고 연구하였다. 또한, 소비재제품의 브랜드신뢰성이 신용과 전문성으로 적재되는지를 파악하여 국가이미지뿐만 아니라 기업의 향후 브랜드전략에 대한 시사점을 제공하고자 연구하였는데 연구결과는 다음과 같다. 첫째, 일본시장에서 소비재제품의 브랜드신뢰성은 전문성과 신용의 두 가지 하위 차원으로 적재되는 것으로 나타났다. 둘째, 한국의 국가이미지는 한국제품의 브랜드신뢰성에 정의 영향을 미치는 것으로 나타났다. 셋째, 한국소비재제품의 브랜드신뢰성은 지각된 품질과 정보비용의 절약에 정의 영향을 미치는 것으로 나타났다. 넷째, 한국소비재제품의 브랜드신뢰성은 지각된 위험에 부의 영향을 미치는 것으로 나타났다. 마지막으로, 브랜드신뢰성은 국가이미지가 지각된 품질, 지각된 위험, 정보비용의 절약으로 가는 경로에서 매개적 역할을 하는 것으로 나타났다. 본 연구결과는 해외시장에서 우리나라의 국가이미지 제고전략과 기업들의 브랜드전략에 대한 유용한 시사점을 제공하고 있다.

• The Journal of Asian Finance, Economics and Business
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• 제8권9호
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• pp.101-111
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• 2021

This study investigates the impact of heuristic factors on customers' perception of information credibility of influencers on YouTube channels, and the association between customers' perception of information credibility and brand attitude, brand credibility, and purchase intention of cosmetic products in Vietnam. A quantitative approach is employed, with a survey of 270 females who are frequent viewers of beauty content on YouTube channels. The data reliability and validity go through various statistical tests including exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Also, structural equation modeling (SEM) is applied to test the hypotheses. The results reveal that there is a positive association between heuristic factors and the perception of information credibility. This perception of information credibility also influences positively on customers' attitudes toward the brand and brand credibility. Purchase intention is also found to be positively associated with the two latter variables. The study's main findings not only offer advice to practitioners on how to choose the right product endorsers and advertising platforms, but they also offer novel insight from the Vietnamese context that could help to extend the heuristic-systematic model and customers' buy intention behavior.

• Journal of Information Technology Applications and Management
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• 제21권3호
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• pp.35-52
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• 2014

This study aims to examine how the relationship with an information source affects people to perceive credibility of online information. We developed a conceptual framework that explained how people perceived information credibility when they were familiar with the information source and/or when the information source seemed credible. We then compared the models in two different contexts, namely, online review and social media sites, to examine differences. We surveyed 136 online social media users with their online shopping experiences. Among our eight hypotheses, three (H6: the personality similarity between an information provider and an information seeker enhances the perceived credibility of the former; H7: the credibility of an information provider produces a much stronger mediating effect in review sites than in social media sites; H8: the familiarity of an information seeker with an information provider produces a stronger mediating effect in social media sites than in review sites) are fully supported and four (H1: the credibility of an information provider has a positive influence on the perceived credibility of the online information; H2: the familiarity of an information seeker with an information provider has a positive influence on the perceived credibility of the online information; H3: the goal similarity between an information provider and an information seeker enhances the perceived familiarity of the latter with the former; H5: the personality similarity between an information provider and an information seeker enhances the perceived familiarity of the latter with the former) are partially supported. The hypothesis of H4: the goal similarity between an information provider and an information seeker enhances the perceived credibility of the former is rejected. The result confirms that credibility of information is strongly mediated by credibility of information source than familiarity with information source in online review sites and vice versa in social media sites.

• 디지털융복합연구
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• 제12권5호
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• pp.203-211
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• 2014

본 연구의 목적은 CSR퍼블리시티(긍정 vs. 부정)가 기업이미지와 고객충성도에 미치는 영향을 살펴보는 것이다. 특히 매체신뢰도의 조절 효과를 살펴보았으며, 기업이미지의 CSR퍼블리시티와 고객충성도 간의 매개효과도 살펴보았다. 연구의 결과 1) CSR정보가 긍정적인 경우보다 부정적인 경우에 기업에 미치는 영향은 더 크게 나타났다. 2) 매체신뢰도의 조절효과도 확인되었다. 즉 CSR정보가 긍정적인 경우, 매체 신뢰도가 높을 때는 기업이미지가 높게 나타났지만 매체신뢰도가 낮은 경우에는 기업이미지가 높지 않게 나타났다. 반면에 CSR정보가 부정적인 경우, 매체신뢰도와 관계없이 기업이미지에 미치는 부정적 영향은 차이가 없는 것으로 나타났다. 3) 기업이미지는 고객충성도에 긍정적인 영향을 미치는 것으로 나타났으며 CSR퍼블리시티와 고객충성도를 매개하는 것으로 나타났다. 이와 같은 연구결과는 기업이미지와 고객충성도 형성에 있어서 CSR퍼블리시티에 대한 신뢰도가 매우 중요한 요인이며, 매체의 신뢰도 또한 CSR퍼블리시티에 대한 신뢰도에 중요한 요인임을 시사해 주고 있다.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2007년도 International Conference
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• pp.576-581
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• 2007

The purpose of this paper is to strengthen trust on the automated collaborative filtering system. Automated collaborative filtering system is quickly becoming a popular technique for recommendation system. This elaborative methodology contributes for reducing information overload and the result becomes index of users' preference. In addition, it can be applied to various industries in various fields. After it collaborative filtering system was developed, many researches are executed to enhance credibility and to apply in various fields. Among these diverse systems, collaborative filtering system which uses Pearson correlation coefficient is most common in many researches. In this paper, we proposed new process diagram of collaborative filtering algorithm and new factors which should improve the credibility of system. In addition, the effects and relationships are also tested.

• Journal of the Korean Data and Information Science Society
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• 제20권2호
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• pp.445-452
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• 2009

Credibility models are actuarial tools to distribute premiums fairly among a heterogeneous group of policyholders. Many existing credibility models can be expressed as special cases of linear mixed effects models. In this paper we propose a nonlinear credibility regression model by reforming the linear mixed effects model through kernel machine. The proposed model can be seen as prediction method applicable in any setting where repeated measures are made for subjects with different risk levels. Experimental results are then presented which indicate the performance of the proposed estimating procedure.

• 한국응급구조학회지
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• 제19권3호
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• pp.51-68
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• 2015

Purpose: This study validated the influential relations between the effects of emergency care quality, credibility of 119 emergency medical technicians (119 EMTs), and perceived usefulness and attitude of emergency care, focusing on the moderating effect of protectors' characteristics (education, experience, age, and recognition of patient severity). Methods: This study was based on elaboration likelihood and technology acceptance models. In total, 172 protectors with experience in utilizing prehospital service were surveyed from April 1 to July 31, 2011. Results: The results showed that the emergency care quality and the credibility of 119 EMTs were the main determinants of the perceived usefulness and attitude of emergency care, irrespective of the protector's characteristics (p <.001). In addition, the findings showed that the protector's intention of emergency care had a moderating role. The impact of the quality of emergency care on its perceived usefulness was greater for high-level protectors (p <.001). By contrast, the impact of the credibility of 119 EMTs on the perceived usefulness of emergency care was greater for low-level protectors (p <.001). Conclusion: The protectors' characteristics have different influences on the relations between the effects of emergency care quality, the 119 EMT credibility, and the perceived usefulness and attitude of emergency care.

• 디지털융복합연구
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• 제17권9호
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• pp.507-516
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• 2019

본 연구는 회계투명성 결여로 인해 세계 최하위수준인 국가신인도 제고를 위한 회계실무교육제도 관련 정책제언에 그 목적이 있다. 국가신인도가 최하위인 이유 중 가장 큰 것은 감사인의 자유선임제도이고, 다음으로 회계에 대한 교육이 제대로 이루어지지 못하고 있다는 점이다. 본 연구는 우리나라 회계교육 개선방안에 대한 선행연구들과 각종 공청회, 보도자료, 정부의 정책자료 등을 정리한 서지학적 연구라 할 수 있다. 회계투명성을 높이는 길은 자유선임이라는 현행 감사제도의 개선과 회계실무교육을 제대로 담보해내는 것이다. 여기에서 감사제도는 2020년부터 주기적(6+3) 지정감사제도로 입법화되었기에, 문제는 회계실무교육으로 그 대상자가 민, 관 등 모든 영역에 속해 있기 때문에 정부차원의 회계전문교육기관인 (가칭)'회계연수원' 설립을 제안하고자 한다. 이를 통해 회계정보의 생산 이용하는 자들의 전문적인 실무교육훈련을 통해 회계투명성을 높이고 나아가 국가 신인도 제고에 기여할 것으로 예상된다.

• 한국기계가공학회지
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• 제12권4호
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• pp.55-60
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• 2013

In this study, mechanical properties of versatile light weight plywood(manufacturing using piercing) are studied. A credibility evaluation was carried out for different perforation patterns including octagonal shape, rectangular shape and circular shape. A static structural analysis is conducted to find the stresses produced. Circular perforations are found to have better strength to weight ratio. Results of each type of perforation are discusses and compared.