• Journal of the Korea Institute of Information Security & Cryptology
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• v.30 no.6
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• pp.1043-1052
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• 2020

Signature-based malicious code detection methods share a common limitation; it is very hard to detect modified malicious codes or new malware utilizing zero-day vulnerabilities. To overcome this limitation, many studies are actively carried out to classify malicious codes using N-gram. Although they can detect malicious codes with high accuracy, it is difficult to identify malicious codes that uses very short codes such as Spectre. We propose a function level N-gram comparison algorithm to effectively identify the Spectre binary. To test the validity of this algorithm, we built N-gram data sets from 165 normal binaries and 25 malignant binaries. When we used Random Forest models, the model performance experiments identified Spectre malicious functions with 99.99% accuracy and its f1-score was 92%.

• The Korean Journal of Pain
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• v.34 no.1
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• pp.66-71
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• 2021

Background: Trigeminal neuralgia is a debilitating craniofacial pain syndrome that is characterized by paroxysms of intense, short-lived electric shock-like pains in the trigeminal nerve distribution. Recently, the presence of triggers has become one of the key diagnostic criteria in the 3rd edition of the International Classification of Headache Disorders. Light touch is the most common trigger, however other non-mechanical triggers, such as cold weather and certain foods, have been thought to provoke trigeminal neuralgia anecdotally. We aimed to characterize the prevalence and characteristics of these atypical triggers. Methods: We conducted a retrospective, cross-sectional study of atypical triggers in trigeminal neuralgia patients seen in a tertiary pain clinic in Singapore. Patients were recruited via clinic records, and study data were identified from physician documentation. Results: A total of 60 patients met the inclusion criteria. Weather triggers were observed in 12 patients (20%), of which five patients (8%) reported strong winds, 4 patients (7%) reported cold temperatures, and 3 patients (5%) reported cold winds as triggers. Fifteen patients (25%) had a specific food trigger, of which 10 patients (17%) reported hard or tough food, 5 patients (8%) reported hot/cold food, 4 patients (7%) reported spicy food, and 2 patients (3%) reported sweet food as triggers. Conclusions: Although trigeminal neuralgia is most commonly triggered by mechanical stimuli, atypical triggers such as cold temperatures and certain foods are seen in a significant proportion of patients. These atypical triggers may share a common pathway of sensory afferent Aδ fiber activation.

• The Journal of Industrial Distribution & Business
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• v.12 no.2
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• pp.29-40
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• 2021

Purpose: In this study, with the transaction amount of foreign direct Purchase and foreign direct sales increasing, South Korea is in a situation where foreign direct sales are focused on China. We looked at the impact of consumer innovation and site characteristics on repurchase ability among the characteristics of overseas direct purchase consumers as a way to make direct overseas sales to various overseas countries. Research design, data and methodology: Consumer innovativeness consists of four variables: functional, hedonistic, social, and cognitive, and the site characteristics consisted of four variables: product price, product assortment, convenience, and service. The study was conducted on consumers with foreign direct purchase experience, and was finally used in 252 additional analyses. Results: The main findings of this study were first, that the impact on the degree of re-purchase among consumer innovativeness of foreign direct purchase consumers had a significant impact in the order of cognitive innovativeness, hedonistic innovativeness, and functional innovativeness. Social innovativeness did not affect the degree of re-purchase. Second, site characteristics have been found to have a significant impact on the degree of re-purchase in order of product assortment, commodity price, and service. Convenience did not affect the degree of re-purchase. Conclusions Taken together these results can be called the biggest characteristic of the cognitive innovativeness of the consumer's inclination to use the overseas direct purchase, the price or quick response of the goods sold on the site is a factor that affects the re-purchase, above all it is important to have a variety of products. We will present this element as a way to make direct sales abroad to various countries. In addition, foreign direct purchase is a lot of transactions in China, the United States, EU, but the share of China is high in foreign direct sales, and the U.S. and EU have a very low performance, it is important to consider the reasons why they prefer Korean products in China to study the social and cultural characteristics of U.S. and European consumers in the future, and to support and active marketing that companies and sellers can increase sales.

• Journal of The Korean Association of Information Education
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• v.24 no.6
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• pp.623-631
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• 2020

In the era of COVID-19 global pandemic, e-learning has become new standards and daily life in the name of 'new normal'. This study developed dialogue e-learning contents as opposed to monologue e-learning which is unidirectional and instructor centered and conducted qualitative user experience evaluation of dialogue e-learning contents. A total number of 20 adult students participated and were individually interviewed. Qualitative data analysis was performed. The findings include students' positive perceptions of dialogue e-learning contents such as empathy for various ideas and new format. With regard to personal preference, 55% of participants preferred dialogue e-learning contents because it enables them to focus and share real experiences. Meanwhile, in terms of learning effects, 60% participants selected monologue e-learning contents and mentioned adequate explanations of concepts and explicit information delivery. Based on the results, suggestions on the design and development of dialogue e-learning contents were presented.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.623-628
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• 2021

The paid knowledge platforms market is growing rapidly due to the constant demand for high-quality knowledge and a change in the positive perception of paid contents. Among them, the growth of paid knowledge platforms in China is overwhelming. The various paid knowledge platforms have emerged in China over the years, and Zhihu occupies the largest share among them. There have been some studies on paid knowledge platforms in China, but studies centered on Zhihu were relatively insufficient, so I conducted the research on Zhihu. In this paper, the development status of China's paid knowledge platform was investigated, the functions provided to users based on the menu configuration of the Zhihu app were analyzed and the business model of Zhihu was explored. In addition, the features of Zhihu were analyzed. It is expected that this paper will be an important data for research on paid knowledge platform.

• Trans-
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• v.13
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• pp.117-140
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• 2022

Recently, artificial intelligence technology is being used throughout the industry. Currently, Currently, AI art generators are used in the NFT industry, and works using them have been exhibited and sold. AI art generators in the art field include Gated Photos, Google Deep Dream, Sketch-RNN, and Auto Draw. AI art generators in the music field are Beat Blender, Google Doodle Bach, AIVA, Duet, and Neural Synth. The characteristics of AI art generators are as follows. First, AI art generator in the art field are being used to create new works based on existing work data. Second, it is possible to quickly and quickly derive creative results to provide ideas to creators, or to implement various creative materials. In the future, AI art generators are expected to have a great influence on content planning and production such as visual art, music composition, literature, and movie.

• Health Policy and Management
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• v.32 no.1
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• pp.3-13
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• 2022

Health centers provided intensive health care services for local residents according to changes in the times and environment. Public health centers were given various roles such as medical treatment, administration, and service, and the demand for functional reorganization has emerged. We analyzed the literature on the functional restructuring of public health care institutions. In addition, the current status of medical services, which is the main function of institutions, will be analyzed through health insurance statistical data, and detailed contents will be analyzed according to regional types and income levels. As a result of the analysis of medical services at institutions, the total number of patients was 2,238,000, and the number of visits was 11,806 times. Total medical expenses were 169.6 billion won, of which 132 billion won was found to be benefit. When analyzing the number of patients per institution, public health centers had the largest number of 4,326, and the share of benefit was also the highest at public health centers. It should focus on the function of providing local health and medical services related to health promotion and disease prevention in the community. This functional reorganization of public health centers can contribute to forming cooperative relationships with private medical institutions in the local community. For this, first, to establish the role, essential functions for public health centers for preventive health management are established. Secondly, regular manpower expansion and flexible manpower management are required in the human resources sector. Finally, in the organizational sector, it is necessary to establish a step-by-step organizational system according to environmental changes.

• Journal of Technology Innovation
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• v.28 no.3
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• pp.55-76
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• 2020

The traditional occupational boundaries of human resources in science and technology (S&T) have quickly blurred in Korea. On the one hand, the knowledge-based economy has emerged and S&T proliferated beyond conventional areas, leading scientists and engineers to advance into various convergence fields. On the other hand, Korea's labor market is characterized by a higher percentage of highly-educated human resources and a relatively smaller number of high-quality jobs. As a result, the highly educated in S&T have flowed over the traditional careers into non-S&T careers. Focusing on doctorates in S&T, this paper analyzes changes in their career patterns and identifies main determinants. Specifically, jobs are categorized into traditional STEM occupations and the others in order to identify fluctuations in their share and to analyze factors affecting such changes. The analyses are based on data from the 'Survey on Careers and Mobility of Doctorate Holders 2012' conducted by the Science and Technology Policy Institute. The results exhibit marked changes in the occupational composition of doctorates in S&T. Occupational diversification has been proceeded faster in natural sciences, the private sector, and the younger generation than in engineering, the public sector, and the older generation.

• Journal of Korea Trade
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• v.25 no.1
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• pp.112-132
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• 2021

Purpose - This study aims to analyze the international marketing strategies of domestic medical institutions in the international medical market, and to determine whether such strategies increase international market share. With this approach, this study examines the impact of international marketing and social capital on international management performance through global competency and national image. It is hoped that this study can provide some insight on international marketing strategies. Design/methodology - In order to verify the research hypotheses, this study investigates medical institutions based in Incheon, Seoul, Gyeonggi Province, which provides medical services for foreigners. The target population is medical staff and interpreters in charge of administrative work, and a total of 194 copies were collected for 30 days. Of the collected questionnaires, a total of 171 copies were chosen for final analysis, excluding questionnaires with lack of information. Structural equations were used for analyzing the data by employing the R program. Findings - Our analysis suggests that international marketing and global competency performance have an effect on management performance. However, social capital appears to have no effect on global competency and management performance. Originality/value - Given the lack of research on international medical institutions, this study can be useful in the sense that it can help companies improve international marketing performance. Further, global competency was empirically proved to have a strong mediating effect that enhances total effect, while playing a mediating role between international marketing activities and management performance. This study is of great academic value in that it has comprehensively reviewed and systematized existing studies, and conducted empirical studies in the absence of domestic studies.

• Journal of Digital Convergence
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• v.20 no.2
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• pp.141-154
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• 2022

This study aims to investigate how tie strength in business networks affects successful knowledge sharing, as well as the impact of environmental uncertainty on the relationship between knowledge sharing and tie strength. We gathered data through a questionnaire-based survey of 310 employees affiliated with a high-technology industry in Korea. The results highlighted the positive influence of strong ties on tacit knowledge sharing and weak ties on explicit knowledge sharing. Additionally, in this study, we determine that strong ties are strengthened to share tacit knowledge with exchange parties when environmental uncertainty is high, whereas weak ties may remain unaffected by environmental uncertainty. This study contributes to the literature on tie strength and knowledge sharing by applying social capital theory to a high-technology industry. The findings suggest that firms must take advantage of strong and weak ties to facilitate knowledge sharing to enhance competency, create novel knowledge, and obtain a competitive advantage.