• Journal of Korean Library and Information Science Society
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• v.54 no.2
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• pp.23-42
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• 2023

The library tour program is a new type of cultural program that was first introduced and operated by J City, and library tourists travel to specialized libraries in the city according to a set course and experience various experiences. This study aims to build a customized course recommendation model that considers the characteristics of individual participants in addition to the existing fixed group travel format so that more users can enjoy the opportunity to participate in library tours. To this end, the characteristics of library travelers were categorized to establish traveler personas, and library evaluation items and evaluation criteria were established accordingly. We selected 22 libraries targeted by the library travel program and measured library data through actual visits. Based on the collected data, we derived the characteristics of suitable libraries and developed a persona-based library tour course recommendation model using a decision tree algorithm. To demonstrate the feasibility of the proposed recommendation model, we build a mobile application mockup, and conducted user evaluations with actual library users to identify satisfaction and improvements to the developed model.

• Proceedings of the IEEK Conference
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• 2002.06b
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• pp.301-304
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• 2002

This paper describes the design and implementation results of JPEG core, based on the ITU-T Recommendation T.81. We designed the RTL circuit in Verilog HDL, making reference to the JPEG program from the Independent JPEG Group. The circuit has been simulated with Verilog-XL, synthesized with Design Compiler and verified using Altera FPGA. Since the synthesized circuit includes a small number of gates, it is expected to be used as a core module in image processing SOC.

• International Journal of Contents
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• v.17 no.3
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• pp.30-37
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• 2021

This study aimed to determine the effects of simulation learning program using SBAR (Situation, Background, Assessment, Recommendation) techniques on undergraduate nursing students' clinical judgment and communication skills. A quasi-experimental research design (one-group pretest-posttest design) was used in this study. The participants included 88 students from a nursing college. There were statistically significant differences in clinical judgment, communication clarity, and communication confidence between pre-simulation learning using SBAR and post (t=10.32, p<.0001; t=6.05, p=<.0001; t=7.42, p=<.0001). The simulation learning program using SBAR was found to improve nursing students' clinical judgment as well as clarity and confidence in interprofessional communication.

• Research in Community and Public Health Nursing
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• v.23 no.1
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• pp.91-101
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• 2012

Purpose: This study was conducted to examine the effects of exercise on physiological, physical and psychological functions of the frail elderly. Methods: The research design was a nonequivalent control group pretest-posttest design. Data were collected from September 9 to October 10, 2009. The subjects were 56 frail elders who agreed to participate in this study and each subject was randomly assigned to either the experimental group (n=28) or the control group (n=28). The exercise program was provided to each subject in the experimental group twice in a week for 6 weeks. Data were analyzed with frequency, ${\chi}^2$-test, Kolmogorov-Smirnor test and independent t-test using SPSS/WIN 12.0. Results: There was a significant improvement in psychological functions in the experimental group compared to the control group (t=1.726, p=.045). Conclusion: The exercise program showed the effects to improve the psychological functions of the frail elderly with chronic disease. In recommendation, this exercise program could be utilized as a health promoting program for the frail elderly.

• The Korean Journal of Rehabilitation Nursing
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• v.19 no.1
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• pp.20-29
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• 2016

Purpose: The purpose of this study was to develop Situation, Background, Assessment, Recommendations(SBAR) program and to test the effects of the program on communication clarity, clinical competence, and self-efficacy for clinical nurses in cancer hospitals. Methods: This study applied a nonequivalent control group non-synchronized design. There were 28 participants in the intervention group and 27 in the control group. SBAR program consisted of 4 parts and applied for 6 weeks in the intervention group. Data were analyzed with ${\chi}^2$ test, Fisher's exact test, t-test and ANCOVA using the SPSS program. Results: Communication clarity, clinical competence and self efficacy were significantly increased in the intervention group compared to those in the control group. Conclusion: These results suggest that SBAR program may improve communication clarity, clinical competence and self-efficacy for clinical nurses in cancer hospitals. Therefore, it is required to actively take advantage of this program to improve communication clarity among medical staffs, clinical competence, and self-efficacy in clinical nursing practices.

• Journal of Korean Academy of Nursing Administration
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• v.16 no.1
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• pp.48-58
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• 2010

Purpose: The purpose of this study was to identify the effect of a mentoring program as a strategy for the retention of clinical nurses. Method: Research subjects were 20 mentors, 20 mentees and 22 clinical nurses for a control group of mentees. A mentoring program was developed by an expert committee and applied to the experimental group for six months. Data were collected at three and six months after the application of the program from September, 2008 to March, 2009. Data were analyzed using $x^$-test, t-test, Repeated Measures ANOVA, One-way ANOVA in SPSS/Win 15.0 Program. Results: Job satisfaction, organizational commitment, empowerment, and carrier commitment in the mentees of the experimental group were significantly higher than the nurses of the control group. Intention of resignation in mentees of the experimental group were significantly lower than the nurses of the control group. Also, there were significant interaction between the groups and the times of measurements in all variables. Conclusion: The mentoring program showed positive impact on the variables for maintenance of clinical nurses. Recommendation: Based on these findings, retention strategies using mentoring programs were recommended to reduce clinical nurses' resignation and improve the competency of clinical nurses that leads to the productivity of nursing organizations.

• Journal of Gastric Cancer
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• v.18 no.4
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• pp.313-327
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• 2018

The prevalence of gastroesophageal reflux disease (GERD) is increasing in Korea, and physicians, including surgeons, have been focusing on its treatment. Indeed, in Korea, medical treatment using a proton pump inhibitor is the mainstream treatment for GERD, while awareness of surgical treatment is limited. Accordingly, to promote the understanding of surgical treatment for GERD, the Korean Anti-Reflux Surgery Study Group published the Evidence-Based Practice Guideline for the Surgical Treatment of GERD. The guideline consists of 2 sections: fundamental information such as the definition, symptoms, and diagnostic tools of GERD and a recommendation statement about its surgical treatment. The recommendations presented 5 debates regarding fundoplication: 1) comparison of the effectiveness of medical and surgical treatments, 2) effectiveness of surgical treatment in cases of refractory GERD, 3) effectiveness of surgical treatment of extraesophageal symptoms, 4) comparison of effectiveness between total and partial fundoplication, and 5) effectiveness of fundoplication in cases of hiatal hernia. The present guideline is the first to demonstrate the efficacy of the surgical treatment GERD in Korea.

• Journal of Digital Contents Society
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• v.19 no.4
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• pp.701-709
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• 2018

Our research team implemented and operated the system by analyzing the membership information and identifying the different preferences for each group and providing the results of the recommendation based on accumulated membership information and activity log data to the individual. The utilization log was followed up. We analyzed how many people use recommended services and analyzed whether there are any factors other than the personalization service algorithm that affect the service utilization of the system with personalization. In addition, we propose recommendation methods based on behavioral changes when incentives are given through analyzing patterns of users' usage according to methods of recommending services and contents that are often used based on analysis contents.

• Journal of the Korean Institute of Intelligent Systems
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• v.24 no.4
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• pp.443-449
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• 2014

Preferences of users on movies are observables of various factors that are related with user attributes and movie features. For movie recommendation, analysis methods for relation among users, movies, and preference patterns are mandatory. As a relational analysis tool, we focus on the Infinite Relational Model (IRM) which was introduced as a tool for multiple concept search. We show that IRM-based co-clustering on preference patterns and movie descriptors can be used as the first tool for movie recommender methods, especially content-based filtering approaches. By introducing a set of well-defined tag sets for movies and doing three-way co-clustering on a movie-rating matrix and a movie-tag matrix, we discovered various explainable relations among users and movies. We suggest various usages of IRM-based co-clustering, espcially, for incremental and dynamic recommender systems.

• Knowledge Management Research
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• v.21 no.1
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• pp.175-195
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• 2020

The development of platform service based on the information and communication technology has revolutionized patterns of commercial transactions, driving the growth of global economy. Furthermore, the radical advancement of artificial intelligence(AI) presents the huge potential to innovate almost all the industrial and economic activities. Given these technological developments, the goal of this paper is to investigate AI's impact on the platform service innovation as well as its influence on the business performance. For the goal, this paper presents the review of the types of service innovation, the nature of platform services, and technological characteristics of leading AI technologies, such as chatbot and recommendation system. As an empirical study, this paper performs a multiple case study of Kakao Group which is the leading mobile platform service with the most advanced AI in Korea. To understand the role and effect of AI on Kakao platform service, this study investigated three cases, including chatbot agent of Kakao Bank, Smart Call service of Kakao Taxi, and music recommendation system of Kakao Mellon. The analysis results of the case study show that AI initiated innovations in platform service concepts, service delivery, and customer interface, all of which lead to a significant decrease in the transaction costs and the personalization of services. Finally, for the successful development of AI, this research emphasizes the significance of the accumulation of customer and operational data, the AI human capital, and the design of R&D organization.