• Journal of Environmental Health Sciences
• /
• v.45 no.5
• /
• pp.457-464
• /
• 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.

• International Area Studies Review
• /
• v.15 no.1
• /
• pp.315-339
• /
• 2011

As the Korean economy grows, the brand value of Korean companies such as Samsung, LG and Hyundai Motor has been elevated greatly. Compared to the brand value of Korean companies, Korea's national image is very lowly ranked. In addition Korea's national brand is undervalued compared to economic volume. So, the purpose of this study is to find way to enhance the Korea's national brand in Japanese Market through brand credibility. The results as follows. First, this study find that brand credibility is consist of expertise and trustworthiness in Japanese market. Second Korea national image positive impact on brand credibility. Third, brand credibility positive impact on perceived quality and information cost saving. Finally, brand credibility negative impact on perceived risk. In conclusion, all hypothesis are significant. So these results are very useful to Korea government and Korean companies.

• The Journal of Asian Finance, Economics and Business
• /
• v.8 no.9
• /
• pp.101-111
• /
• 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
• /
• v.21 no.3
• /
• pp.35-52
• /
• 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.

• Journal of Digital Convergence
• /
• v.12 no.5
• /
• pp.203-211
• /
• 2014

The purpose of this study is to test the influence of CSR publicity(positive vs. negative) on the corporate image and customer loyalty. Especially this study is focused on the moderating effect of media credibility and the mediating effect of corporate image between CSR publicity and customer loyalty. The results of this study are as follows. 1) The influence of CSR publicity on the corporate image appears more in the negative information than the positive one. 2) The moderating effect appears in media credibility. Namely, in the case of positive CSR information, the influence of CSR publicity on the corporate image appears high only in high credibility of media, but it does not in low media credibility. Whereas, in the negative information, there is no differences of negative influence on the corporate image nevertheless of media credibility. 3) The higher the corporate image is, the higher the customer loyalty is. The results of this study implicate that credibility of CSR publicity is very important factor on the corporate image and customer loyalty and media credibility is another one in credibility of CSR publicity.

• 한국경영정보학회:학술대회논문집
• /
• 2007.06a
• /
• pp.576-581
• /
• 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
• /
• v.20 no.2
• /
• pp.445-452
• /
• 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.

• The Korean Journal of Emergency Medical Services
• /
• v.19 no.3
• /
• pp.51-68
• /
• 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.

• Journal of Digital Convergence
• /
• v.17 no.9
• /
• pp.507-516
• /
• 2019

The purpose of this study is to propose a policy for accounting practice education system to improve the national credibility. The biggest reason why the national credibility is the lowest is that the auditor's free appointment system is the next, and the education on accounting is not done properly. This study is a bibliographical study that examines the previous studies on the improvement of accounting audit and accounting education in Korea, various public hearings, press releases, and government policy data, and summarizes. The way to increase accounting transparency is to improve the audit system and to guarantee accounting practice education. Since the subjects of practical education belong to all areas such as private and government, it is intended to propose the establishment of accounting professional education institution, called (tentatively) 'Accounting Training Institute'. Through this, it is expected that the practical and professional training will improve accounting transparency and contribute to the improvement of national credibility.

• Journal of the Korean Society of Manufacturing Process Engineers
• /
• v.12 no.4
• /
• pp.55-60
• /
• 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.