• Journal of Intelligence and Information Systems
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• v.20 no.3
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• pp.19-43
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• 2014

The Pareto principle, also known as the 80-20 rule, states that roughly 80% of the effects come from 20% of the causes for many events including natural phenomena. It has been recognized as a golden rule in business with a wide application of such discovery like 20 percent of customers resulting in 80 percent of total sales. On the other hand, the Long Tail theory, pointing out that "the trivial many" produces more value than "the vital few," has gained popularity in recent times with a tremendous reduction of distribution and inventory costs through the development of ICT(Information and Communication Technology). This study started with a view to illuminating how these two primary business paradigms-Pareto principle and Long Tail theory-relates to the success of virtual knowledge collaboration. The importance of virtual knowledge collaboration is soaring in this era of globalization and virtualization transcending geographical and temporal constraints. Many previous studies on knowledge sharing have focused on the factors to affect knowledge sharing, seeking to boost individual knowledge sharing and resolve the social dilemma caused from the fact that rational individuals are likely to rather consume than contribute knowledge. Knowledge collaboration can be defined as the creation of knowledge by not only sharing knowledge, but also by transforming and integrating such knowledge. In this perspective of knowledge collaboration, the relative distribution of knowledge sharing among participants can count as much as the absolute amounts of individual knowledge sharing. In particular, whether the more contribution of the upper 20 percent of participants in knowledge sharing will enhance the efficiency of overall knowledge collaboration is an issue of interest. This study deals with the effect of this sort of knowledge sharing distribution on the efficiency of knowledge collaboration and is extended to reflect the work characteristics. All analyses were conducted based on actual data instead of self-reported questionnaire surveys. More specifically, we analyzed the collaborative behaviors of editors of 2,978 English Wikipedia featured articles, which are the best quality grade of articles in English Wikipedia. We adopted Pareto ratio, the ratio of the number of knowledge contribution of the upper 20 percent of participants to the total number of knowledge contribution made by the total participants of an article group, to examine the effect of Pareto principle. In addition, Gini coefficient, which represents the inequality of income among a group of people, was applied to reveal the effect of inequality of knowledge contribution. Hypotheses were set up based on the assumption that the higher ratio of knowledge contribution by more highly motivated participants will lead to the higher collaboration efficiency, but if the ratio gets too high, the collaboration efficiency will be exacerbated because overall informational diversity is threatened and knowledge contribution of less motivated participants is intimidated. Cox regression models were formulated for each of the focal variables-Pareto ratio and Gini coefficient-with seven control variables such as the number of editors involved in an article, the average time length between successive edits of an article, the number of sections a featured article has, etc. The dependent variable of the Cox models is the time spent from article initiation to promotion to the featured article level, indicating the efficiency of knowledge collaboration. To examine whether the effects of the focal variables vary depending on the characteristics of a group task, we classified 2,978 featured articles into two categories: Academic and Non-academic. Academic articles refer to at least one paper published at an SCI, SSCI, A&HCI, or SCIE journal. We assumed that academic articles are more complex, entail more information processing and problem solving, and thus require more skill variety and expertise. The analysis results indicate the followings; First, Pareto ratio and inequality of knowledge sharing relates in a curvilinear fashion to the collaboration efficiency in an online community, promoting it to an optimal point and undermining it thereafter. Second, the curvilinear effect of Pareto ratio and inequality of knowledge sharing on the collaboration efficiency is more sensitive with a more academic task in an online community.

• Archives of design research
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• v.16 no.4
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• pp.405-412
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• 2003

This research investigated the preference factor which has an effect on the forms of bus stop shelter in order to grasp the visual preference factor, which is necessary for planning and designing of bus stop shelter centering around user, starting with the question of the research regarding that a shelter is preferred by what kind of factor when the environmental conditions are regular. This research examined the relation between visual preference and preference factor which has an effect on it with Multiple Regression Analysis after evaluating visual preference for shelter form by user as applying of scoring system of Interval Scale. The result of the factor analysis by visual evaluation for the form of bus stop shelter through the said research result will have an great effect on the design of bus stop shelter centering around its user. Therefore, this research result will give a knowledge which is necessary for the plan and the installation of bus stop shelter, and contributes to shelter design and bus stop promotion which can maximize the satisfaction of user. As well, concerning the management of bus stop facilities, it will give useful guidelines for planning strategically the shelter management centering around user. In particular, It is estimated that the preference factor analysis by visual evaluation of the mass transportation user in daily life will be the cardinal point for bus stop plan.

• Journal of Korean Clinical Nursing Research
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• v.17 no.3
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• pp.307-318
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• 2011

Purpose: This study was to identify topics for evidence-based clinical nursing practice guidelines in Korea. Methods: Data were collected from 330 staff nurses from 10 general hospitals and 53 nurses in charge of nursing education in 110 hospitals with over 500 beds. Using open questions, the nurses identified activities which could not be verified, which lacked consistency among nurses, clinical units and/or hospitals, which were not based on the up-to-date knowledge and which needed reform. The data were analysed by content analysis using a qualitative methodology. Results: Collected data consisted of 1882 clinical topics, which were classified into 50 topics, 207 mid-categories, and 456 sub-categories. The most frequent topics in order of frequency were medications, central line management, intravenous injections, urinary catheterization, perioperative nursing care, skin tests, pressure ulcer care, blood transfusions, laboratory examination-culture, respiratory care which were performed routinely in clinical setting by staff nurses. Conclusion: The research findings indicate the urgent need to develop evidence-based clinical nursing practice guidelines related to these research findings. Further research is needed to identify topics related to health promotion, and symptom/management of health problem.

• Information Systems Review
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• v.5 no.2
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• pp.241-256
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• 2003

This empirical study is to explain critical success factors for building effective regional IT cluster from the literature reviews which have some limitations, and is to suggest new key factors from the views of Regional Innovation System and Sectoral Systems of Innovation. For building successful cluster, the new key factors not only stress on regional networks, the spill-over of tacit knowledge through learning by interacting, institutions which contain regional custom, norms, established practices, culture, and characteristics from the Regional Innovation System, but also emphasize on heterogeneous agents who are interacting by each others from Sectoral Systems of Innovation. From these factors we suggest some strategies for building effective "Daegu IT Cluster" as following; making characterized IT brands which are selected and concentrated based on regional and IT sectoral characteristics, strengthening learning competence of tacit knowledge built in multiple heterogeneous agents network, establishing strong agent networks which are composed of universities, companies, institutes and government, and sharing the institution of mind-opening culture in order to correspond with environmental changes and link to other industrial clusters. By putting above strategies in force, the compatabilities of Daegu region are reinforced. Tacit knowledges spill over and the regional innovation competence are accumulated. Also IT cluster plays core role of employment in Daegu for long term. Especially, "Daegu IT Cluster" changes city's image from medium and small manufacturing city to new industrial city based on high technologies.

• Knowledge Management Research
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• v.22 no.4
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• pp.27-40
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• 2021

Click-Through Rate (CTR) prediction is a key function that determines the ranking of candidate items in the recommendation system and recommends high-ranking items to reduce customer information overload and achieve profit maximization through sales promotion. The fields of natural language processing and image classification are achieving remarkable growth through the use of deep neural networks. Recently, a transformer model based on an attention mechanism, differentiated from the mainstream models in the fields of natural language processing and image classification, has been proposed to achieve state-of-the-art in this field. In this study, we present a method for improving the performance of a transformer model for CTR prediction. In order to analyze the effect of discrete and categorical CTR data characteristics different from natural language and image data on performance, experiments on embedding regularization and transformer normalization are performed. According to the experimental results, it was confirmed that the prediction performance of the transformer was significantly improved when the L2 generalization was applied in the embedding process for CTR data input processing and when batch normalization was applied instead of layer normalization, which is the default regularization method, to the transformer model.

• Journal of Korean Academy of Nursing Administration
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• v.4 no.2
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• pp.321-349
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• 1998

Since 1990 the effort for unification has been active in each department of our society. But the study for health policy in Unified Korea has been scarce. Unified Korea should be a democracy and a constitutional state. So we should have lively discussion on the health law as well as unified general laws. The purpose of this study is to compare the health law of South Korea and North Korea and to understand the differences in them. We guess both Korea are considerably different each other. But this study found out that there are many health related laws that have same goals and contents. The reason for this is that both health laws have its root in Korea Law. And the right to health is the social basic right. whose characteristic can not be compatible with market economy and demands state intervention for securing the right to health. The health related laws are divided into 4 fileds. 1. There is a field A which is affected by unified political and economic system and differs little from the law system: the license system of medical personnel. 2. There is a field B which is seldom affected by unified political and economic system and differs little from the law system: the right and duty of medical personnel. quarantine law. 3. There is a field C which is affected by unified political and economic system and differs greatly from the law system: health institution law(exclusive of quarantine law), the laws of medical personnel category, of research center(especially per-mission, registration and establishment). of the role of basic health in private and public area. 4. There is a field D which is seldom affected by unified political and economic system and differs greatly from the law system: health equipment law(the laws of drugs, of cosmetics and of medical instrument. of blood management). the laws of health knowledge. of cooperation in chinese medicine and western medicine. the health promotion law. the rules of first-aid. the law of separation of dispensary from medical practice. The laws which are seldom affected by political and economic system can be consolidated. which in turn can be revised and enacted before unification of Korea through the interchange between North Korea and South Korea and the support to North Korea health system.

• Korean Security Journal
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• no.61
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• pp.59-85
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• 2019

In the reality that the boundary between the real world and the virtual world disappears with the 4th Industrial Revolution, cyber crimes that occur beyond time and space have clear limitations in fulfilling their duties only with the police force of government organizations established under the real law system. The research method of this thesis is based on the literature research and the experience of security work. The purpose of this paper is to establish a social system where collective intelligence of each social field can participate voluntarily to respond to cyber crimes occurring beyond the time and space before the law and institutionalization. In addition, the social system in which collective intelligence in each social sector can participate voluntarily was established to define crime types in cyberspace in real time and to prevent crimes defined by the people themselves and the counter-measures had been proposed in order to form social consensus. First, it is necessary to establish a collective intelligent network-type cyberpolice volunteer system. The organization consists of professors of security and security related departments at universities nationwide, retired public officials from the National Intelligence Service, the National Police Agency, and the National Emergency Management Agency, security companies and the organizations, civilian investigators, security & guard, firefighting, police, transportation, intelligence, security, national security, and research experts. Second, private sector regulation should be established newly under the Security Business Act. Third, the safety guard of the collective intelligent cyberpolice volunteer system for the stability of the people's lives should strengthen volunteer work. Fourth, research lessons and legal countermeasures against cybercrime in advanced countries should be introduced. Fifth, the Act on the Protection of Personal Information, the Act on Promotion of Information and Communication Network Utilization and Information Protection, the Act on the Utilization and Protection of Credit Information, and the Special Act on the Materials and Parts Industry should be amended. Sixth, police officers should develop cybercrime awareness skills for proactive prevention activities.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.3
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• pp.464-477
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• 2013

There is a great need to develop a training program proven to change behavior and improve knowledge. The purpose of this study was to evaluate employee hygiene knowledge, hygiene practice, and cleanliness, before and after HACCP system implementation at one small-size restaurant. The efficiency of the system was analyzed using time-temperature control after implementation of u-HACCP$^{(R)}$. The employee hygiene knowledge and practices showed a significant improvement (p<0.05) after HACCP system implementation. In non-heating processes, such as seasoned lettuce, controlling the sanitation of the cooking facility and the chlorination of raw ingredients were identified as the significant CCP. Sanitizing was an important CCP because total bacteria were reduced 2~4 log CFU/g after implementation of HACCP. In bean sprouts, microbial levels decreased from 4.20 logCFU/g to 3.26 logCFU/g. There were significant correlations between hygiene knowledge, practice, and microbiological contamination. First, personnel hygiene had a significant correlation with 'total food hygiene knowledge' scores (p<0.05). Second, total food hygiene practice scores had a significant correlation (p<0.05) with improved microbiological qualities of lettuce salad. Third, concerning the assessment of microbiological quality after 1 month, there were significant (p<0.05) improvements in times of heating, and the washing and division process. On the other hand, after 2 months, microbiological was maintained, although only two categories (division process and kitchen floor) were improved. This study also investigated time-temperature control by using ubiquitous sensor networks (USN) consisting of an ubi reader (CCP thermometer), an ubi manager (tablet PC), and application software (HACCP monitoring system). The result of the temperature control before and after USN showed better thermal management (accuracy, efficiency, consistency of time control). Based on the results, strict time-temperature control could be an effective method to prevent foodborne illness.

• Research in Community and Public Health Nursing
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• v.4 no.1
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• pp.5-13
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• 1993

The objective of this study was to analyze the status of health examination, and the health care management of industries in Seoul. This will provide effective industrial health care services. 46 industries were selected as a sample, and were given self administered questionnaire developed by the academic affairs of community health nursing. The results of this study are as follows: (1) The general characteristics of industries: The greater part of the industries were manu facturing companies, 300-900 workers, in a one shift system. (2) The general characteristics of health man ager: 96% of the companies had industrial nurses and the larger industries had comprehensive health managers. 90% of the industrial nurses were full-time employees and 77% of the industrial physician were part time employees. 80% of the industrial physician were age 50 or older, while 59% of the industrial nurses were 25-29 years of age. (3) Health examination and follow up care: The proportions of the workers who took general health examination was 94%. Of those, 12% took secondary examinations. In secondary examinations, 36% were evaluated at the C-grade, 20% were evaluated at the D-grade. The proportion of the workers who were required to take special examination were 29% and of that, the proportion of the workers who actually took the examination was 88%. 85% of the workers who were recommended for follow up cares were given follow up care while working. The physical agents among the special examination were done the most frequently to detect the examination effects. (4) Health care services: Industrial nurses performed health examination most frequently and health education was done the least. There were significant differences in health care services according to the size of the industries. Companies with 300 workers or less had higher health care services than other groups. The three primary reasons of health care management and examinations of workers are: First, industrial nurses are requires to accumulate professional knowledge and experience through continuos' activities. Second, systematic and concert examination for industrial workers should be performed periodically. Third, it needs developing health education strategies that are important workers for health promotion in industries.

• Management & Information Systems Review
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• v.31 no.3
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• pp.223-248
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• 2012

This study analyses support policy and structural change of textile industry in Daegu Kyungbuk region, and suggests major issues for textile industry's innovation. In Daegu Kyungbuk, it was 1999 that a policy, so called Milano Project, in order to promote a textile industry was devised. In 2004, the Regional Industrial Promotion Plan was devised. The plan was born from a view point of establishing a regional innovation system and of promoting the innovative clusters under a knowledge based economy. After then, the Regional Industry Promotion Project or Regional Strategic Industry Promotion Project became a core of regional textile industrial policy. Research results indicated that the first stage Milano project (1999-2003) showed both positive and negative effects. There were no long-term development plan, clear vision and strategy. But, core industrial infrastructure for differentiated product development, such as New product Development Support Center and Dyeing Design Practical Application Center, was constructed. The second stage Daegu Textile Industry Promotion Plan (2004-2008) displayed a significant technological performance and new product sales with the assistance of Kyungbuk province. Also, textile industry revealed positive fruits such as financial structure, productivity, and profitability as a result of strong restructuring. In industrial structure, there was a important change from clothe textile material to industry textile material. Most of textile companies did not showed high capability in CEO's technology innovation intention, entrepreneurship, R&D and human resource competency in compare with other industry. We suggested that Daegu Kyungbuk has to select and concentrate on the high-tech textile material and living textile for sustainable development and competitiveness. We also proposed a confidence and cooperation based innovation network and company oriented innovation cluster.