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A Study on Detecting Fake Reviews Using Machine Learning: Focusing on User Behavior Analysis (머신러닝을 활용한 가짜리뷰 탐지 연구: 사용자 행동 분석을 중심으로)

  • Lee, Min Cheol;Yoon, Hyun Shik
    • Knowledge Management Research
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    • v.21 no.3
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    • pp.177-195
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    • 2020
  • The social consciousness on fake reviews has triggered researchers to suggest ways to cope with them by analyzing contents of fake reviews or finding ways to discover them by means of structural characteristics of them. This research tried to collect data from blog posts in Naver and detect habitual patterns users use unconsciously by variables extracted from blogs and blog posts by a machine learning model and wanted to use the technique in predicting fake reviews. Data analysis showed that there was a very high relationship between the number of all the posts registered in the blog of the writer of the related writing and the date when it was registered. And, it was found that, as model to detect advertising reviews, Random Forest is the most suitable. If a review is predicted to be an advertising one by the model suggested in this research, it is very likely that it is fake review, and that it violates the guidelines on investigation into markings and advertising regarding recommendation and guarantee in the Law of Marking and Advertising. The fact that, instead of using analysis of morphemes in contents of writings, this research adopts behavior analysis of the writer, and, based on such an approach, collects characteristic data of blogs and blog posts not by manual works, but by automated system, and discerns whether a certain writing is advertising or not is expected to have positive effects on improving efficiency and effectiveness in detecting fake reviews.

The Effects of Individual Career Orientation and Preparation of Old Age on the entrepreneurial Intention: Focused on the Effects of Moderating Role of Social Networks (경력지향성과 노후준비도가 창업의지에 미치는 영향: 사회적 네트워크의 조절효과를 중심으로)

  • Kim, Eun Kyoung;Kim, Jong Geun
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.10 no.6
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    • pp.27-36
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    • 2015
  • The purpose of this study was to investigate the influence relationships among individual career orientation, preparation of old age, social networks, and the entrepreneurial intention of the potential entrepreneurs. 408 numbers of structured questionnaire were collected from the potential entrepreneurs who live in Seoul through the online Google survey method and offline face to face method. And the collected data was analyzed on frequency analysis, validity analysis, t-test, ANOVA, and regression analysis etc. using the SPSS WIN 21.0 program. The results are as follows. Firstly, innovation, entrepreneurial creativity, and autonomy orientation affect on entrepreneurial intention positively(+), but security orientation has a negative(-) effect on entrepreneurial intention in the influence relationships between individual career orientation and entrepreneurial intention. Secondly, economical and emotional preparation have positive(+) influences on entrepreneurial intention in the influence relationships between individual career orientation and entrepreneurial intention. Thirdly, the sub-variables of social networks, that is, assist and role models exert a positive(+) influence on entrepreneurial intention in the influence relationships between social networks and entrepreneurial intention. Fourthly, social networks plays a moderating role only on the relationship between security orientation and entrepreneurial intention in the analysis about the moderating effects of social networks on the influence relationships among individual career orientation, preparation of old age, and entrepreneurial intention. Fifth, a social network of relationships to help prepare the old establishment has been found to help regulate effective analysis of whether or not the results of adjustment.

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A Thematic Analysis of Nurses' Work-Family Balance in the Korean Nurses Association News (간호사신문에 게재된 일-가정 양립 주제분석)

  • Kim, Miyoung;Lee, Kyoung Ju
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.2
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    • pp.446-457
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    • 2016
  • This study analyzed the Korean nurses association news described nurses' work-family balance for fifteen years by drawing on the qualitative thematic approach. From September 14, 2012 to February 10, 2015, data were collected by searching news articles associated with nurses' work and family balance published from 2000 to 2014 in the Korean nurses' association news online. A total of 73 news articles were used for data analysis. Two themes and ten sub-themes were derived; under the first theme of the government policy on work-family balance, the 'policies of maternity leave', 'parenting support', 'working condition improvement', and 'family-friendly culture' were identified as the sub-themes. For the second theme of Korean nurses association activities on work-family balance, the 'activities for various working shifts', 'constructing 24 hours childcare facilities', 'supporting unemployed nursing workforce development', 'healthy birth and parenting environment', 'family-friendly work environment', and 'securing nurses for nursing shortage' were identified as sub-themes. The Korean nurses association news in terms of work-family balance providing a voice for nurses regarding the benefit of maternity leave, increasing awareness of gender equality from a gender perspective, and leading the public attention to it in depth.

Relationship between Digital Informatization Capability, Digital Informatization Accessability and Life Satisfaction of Disabled People: Multigroup Analysis of Perceived Social Support Network (장애인의 디지털정보화역량, 디지털정보화활용 수준, 일상생활만족도 간 관계: 지각된 사회적 지지망 수준에 따른 다집단 분석)

  • Yeon, Eun Mo;Choi, Hyo-Sik
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.12
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    • pp.636-644
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    • 2019
  • The purpose of this study is to explore practical intervention strategies by identifying the relationships among digital informatization capacity, level of digital informatization accessability and life satisfaction of disabled people and to determine differences among these relationships depending on perceived level of social support networks. The participants were 1,639 disabled people from the 2017 digital information gap survey and the results, based on structural equation modeling and multi-group analysis, are as follows. First, digital informatization capacity has a positive influence on the level of digital informatization accessability(β=.65), and life satisfaction(β=.08). The level of digital informatization accessability also has positive influence on life satisfaction(β=.44). Second, the analysis result of the mediated effects of digital informatization accessability level between digital informatization capacity and life satisfaction was significant at a level (β=.29) even greater than the direct effect of digital informatization capacity on life satisfaction. Third, digital information capacity and digital informatization accessability have an influence on life satisfaction regardless of their perceived level of social support. The findings suggest that creating online environments where disabled people can enjoy leisure, culture, and social interaction with high accessibility and utility are as important as providing education for improving their digital informatization capacity.

User Integrated Authentication System using EID in Blockchain Environment (블록체인 환경에서 EID를 이용한 사용자 통합 인증 시스템)

  • Kim, Jai-Yong;Jung, Yong-Hoon;Jun, Moon-Seog;Lee, Sang-Beon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.3
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    • pp.24-31
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    • 2020
  • Centralized systems in computing environments have various problems, such as privacy infringement due to hacking, and the possibility of privacy violations in case of system failure. Blockchain, one of the core technologies for the next generation of converged information, is expected to be an alternative to the existing centralized system, which has had various problems. This paper proposes a blockchain-based user authentication system that can identify users using EID in an online environment. Existing identification (ID)/password (PW) authentication methods require users to store personal information in multiple sites, and receive and use their respective IDs. However, the proposed system can be used without users signing up at various sites after the issuing of an EID. The proposed system issues an EID with a minimum of information, such as an e-mail address and a telephone number. By comparing the stability and efficiency of a centralized system, the proposed integrated authentication system proved to be excellent. In order to compare stability against existing systems, we chose attack methods and encroachments on the computing environment. To verify efficiency, the total throughput between the user's app, the issuance and certification-authority's servers, and the service provider's servers was compared and analyzed based on processing time per transaction.

Reinforcement of Long-term Care Service Specialization Need Analysis for Curriculum Development: Focused on Activity Theory (장기요양서비스 종사자 교육과정개발을 위한 요구분석 : 활동이론(Activity Theory)을 중심으로)

  • Suh, Yong-Wan;Choi, Dong-Yeon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.4
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    • pp.428-436
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    • 2020
  • The purpose of this study is to analyze the needs for developing a curriculum for strengthening the long-term care service expertise and job competency. Specifically, the researchers analyzed previous studies on national long-term care services and national policy data, and conducted focus group interviews with 14 experts from related agencies. Activity theory was applied as a framework for analysis and a questionnaire about the importance and difficulty of subjects from 25 long-term service employees was administered for validating the results of the qualitative data analysis. The upper part of the subject-goal-tool of the activity system was considered the main area of action, and the following rule-community-division was divided into contextual parts for action, and the implications for demand analysis and future operation of the online curriculum are summarized. In total, six courses were required for development. These courses could be applied to as a learner-centered flip learning for long-term care service workers and various educational methods of collective education and supplementary education have been proposed. Based on the study results, implications in the educational field for effective management of courses were suggested at the end of the study.

The Effect of Congruency between User Participation and Producer Response on User Generated Content (컨텐츠 유통 플랫폼에서 이용자 참여와 생산자 반응의 적합성 효과에 관한 연구)

  • Son, Jung-Min;Lee, Jun-Seop
    • Journal of Distribution Science
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    • v.13 no.8
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    • pp.73-80
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    • 2015
  • Purpose - This study's objective is to analyze the content of the communications between users and producers based on the construal level theory. User generated content refers to content created in an online-based service where users and producers communicate interactively with each other. In a user generated content platform, the messages sent and received between the many players, the users and producers who use the content, may be analyzed at the psychological level based on construal level theory. Research design, data, and methodology - This study gathered user and producer participation through a snow-bowling sampling method. The data analyzed includes 125 video clips and 2,912 comments. The period of the data collection was from September 2014 to December 2014. The collected data was analyzed using a t-test and two-way ANOVA. Results - This study obtained the following research results. First, users who were a short social distance from producers responded to user participatory activities stated in concrete language rather than abstract language. In contrast, users who were at a longer social distance from producers tended to respond to the content requesting user participation through abstract language. Second, if users and producers were at a short social distance from each other, user preference increased more when a producer response to user participation was expressed concretely rather than when it was expressed abstractly. In contrast, if the users were at a longer social distance, users' preferences increased more when producer response was expressed abstractly rather than when it was expressed concretely. Conclusion - This study found that the effect of suitability, in which the social distance and the content were in congruence at the construal level, could be observed. Therefore, based on this, academic and practical implications were drawn. The three main insights of the study are as follows. First, firms can use psychological factors to analyze the message content of users in their distribution platforms. This study reveals managerial implications for marketing managers who want to take make use of this analysis of user and producer communications. This study indicates that the main factors include the concrete and abstract scores and social distance between users and producers. Second, we also provide the strategic guidelines to maximizing user preferences and other outcomes. The main dependent variable in this study is the user preference shift; the variable increases through the congruence effect; and the construal level is determined by the social distance between the users and producers and the type of producer response. The outcomes here from users can be utilized to develop several systemic strategies. One process to use the outcomes could be: (1) firms could measure the users and producers social distance; (2) calculate the concreteness or abstractness of the messages; and, (3) predict the user preference outcomes by the congruence between user and producer social distance and the abstractness or concreteness of the message content.

A Study on the Visual Merchandising of Traditional Markets in Urban Regeneration (도시재생 과정을 통한 전통시장 비주얼머천다이징 성공사례 연구)

  • Lim, Jeanny;Lee, Jeong-Min
    • Journal of Distribution Science
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    • v.12 no.12
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    • pp.55-63
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    • 2014
  • Purpose - In urban regeneration projects, considerations for rejuvenating traditional public markets are becoming increasingly important. That is because the traditional market is not just a commercial space but also a living center for local people's existence. Cultural contents like these are invaluable assets in the contemporary economy. However, traditional markets are gradually declining because of changes in distribution systems and consumer lifestyles. New distribution systems such as modern distribution markets, home shopping, and online shopping malls made traditional markets less competitive. Further, traditional markets have not been able to adapt to the changing consumption styles of younger generations. Some say that it is a natural phenomenon that cannot be stopped. However, traditional markets are not just another distribution system but also a valuable resource that encapsulates the local people's tradition and history. Thus, a revitalization strategy for traditional public markets has become an urgent task in contemporary urban regeneration projects. This study aimed to find ways to activate traditional public markets by making it a community landmark based on visual merchandising perspectives. Research design and methodology - This study focused on analyzing Granville Island (Vancouver, Canada) as a role-model project for rejuvenating the traditional market. It investigated Granville Island both with walk-through evaluation and literature reviews. Results - We found that it has been developed not only to improve visual aspects, but also to promote cultural contents with high value added. For example, the developers maintained the visual elements that tell the original history of the site as an industrial factory. The renewal project had a balance between improving the outer look and creating attractive contents. The following are the merits of Granville Island that Korean traditional markets should note. First, they kept the whole area clean and hygienic. Second, merchants are well educated, business-savvy, and consumer-oriented. Third, the area's total environmental designs were done by professionals of a high caliber. Fourth, the city government and the merchants'association were collaborating well in their efforts to accommodate the changing needs of consumers. Conclusions - This study made the following suggestions as a conclusion. First, it will be a very powerful tool to rejuvenate the traditional market if we can discover unique cultural resources and develop them as cultural products, experiences, and events. Consumers of the 21st century have a strong tendency to consume not only material products, but also the experiences and memories attached to them. Second, in order to maintain the unique characteristics of traditional markets, fostering the viability of the merchants' association and local residents' society would be essential. Third, it is necessary to make the traditional market into a cultural place not only for the shopping patronage of local residents, but also for attracting tourists to increase sales. Finally, professional management and design approaches are needed in order to make the traditional market a pleasant space from a visual merchandising standpoint.

A study on the new Business Opportunity of E-Commerce (e-비즈니스의 기회창출 방안에 대한 연구)

  • Cho, Jae-Wan;Ko, Chang-Bae
    • Information Systems Review
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    • v.4 no.2
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    • pp.191-208
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    • 2002
  • In the area of new millennium of twenty first century, one of the urgent and critical research issues in commerce area is the regenerating of new business opportunities from the high value added perspectives. With this motivation, in this paper, we create new on-line e-businesses with the speed of lightning their affiliated supply, finance and business communities - which are involved in more and more tightly connected, open trading - we find that we need to deal with hundreds of business collaborative partners, millions of buyers and sellers while we have to face incompatible IT systems. Challenges of new business opportunities linking multi-enterprise data and processes cost effectively, reliably and securely in real time remains an open area in e-business. This challenge we shall describe as the problem of synchronization of multiple enterprise collaborative e-business opportunities (production related), value (finance related), business (operations related) in new business opportunity and infrastructure integrated all together over the off-line and online basis. It brings a new e-commerce opportunities infrastructure into this profitable challenge: by extracting and tracking new business information, new trends in the events of e-business processes. The transformation of the traditional commerce into this type of electronic based commerce can be interpreted as new Cultural Revolution. The revolution will be a new paradigm crossing over the geographical, and organizational zone, restructuring enterprise business process infrastructure.

A study on How to Improve the Professionalism Enhancement Program for Teachers in Charge of Energy and Climate Change Education Based on STEAM Perspectives (융합인재교육의 관점에서 에너지 및 기후변화 교육 연수 프로그램 개선 방안)

  • Lee, Sung-Hee;Shin, Dong-Hoon
    • Journal of Science Education
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    • v.36 no.1
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    • pp.22-34
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    • 2012
  • This study was aimed to discuss how to improve the professionalism enhancement program for teachers in charge of energy and climate change education based on STEAM perspectives. It analyzed the program according to the specialties of the teachers in charge of training, and identified the degree of professionalism enhancement of the participating teachers through the pre- and post-survey. Also, researchers described the strengths and weaknesses, opportunities and threats of this program that were found through the interviews with trainees by participating in the program in person. The results were as follows; First, teacher's training course in charge of energy and climate change education should be approached from the perspective of STEAM education. Second, teachers should have time to discuss their activities after they complete experience learning related with STEAM education. Third, it should be a 60-hour intensive course, but the burden for the teachers should be reduced by using online programs. Fourth, the training program should be planned based on the focus on improving the professionalism. Also, there should be enough time to prepare for the training program. Fifth, energy and climate change teacher training program should be practice-oriented, using hands-on experiences and experiments, in fusion education. Sixth, it would be better to run energy and climate change teacher training programs according to the level of schools. However, several courses could be mixed between different levels of schools.

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