• Journal of the Korea Convergence Society
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• v.9 no.10
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• pp.599-607
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• 2018

The purpose of this study was to identify the influence of job esteem and empathy on customer orientation of college nursing students in the convergence society. The participants were 213 college nursing students, data were collected between July to August, 2018. Data were analyzed using t-test, ANONA, Pearson Correlation, Multiple regression. The factors influencing customer orientation were empathy, job esteem, communication with patients, and perception of customer orientation. These factors explained 32.0% of variance in customer orientation. Therefore, in order to improve the customer orientation of nursing students, education courses and intervention for improving cognitive empathy and finding ways to improve job esteem are needed.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37 no.1A
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• pp.8-16
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• 2012

Recent work has been shown that cognitive radio systems with multiple antenna at both transmitter and receiver are able to improve performance of secondary users. In such system, the main drawback is the increased complexity and raised cost as the number of antennas increase. It is desirable to apply antenna selection which select a subset of the available antennas so as to solve these problems. In this paper, we consider antenna selection method for cognitive radio systems in correlated channel from the IEEE 802.11n. For a multiple-input multiple-output(MIMO) system with more antennas at transmitter than the receiver, we select the same number of transmit antennas as that of receive antennas. The exhaustive search for optimal antenna becomes impractical. We present criterion for selecting subset in terms of projection of channel correlation vector to increase performance of secondary user with decreasing interference at primary user.

• The Journal of the Korea Contents Association
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• v.11 no.5
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• pp.291-301
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• 2011

This research describes the comparison broker's role and its effectiveness measurement framework of comparison shopping. We verified seller-led comparison challenge method provide comparison information of products to buyers more efficiently. Buyer's satisfaction of purchase (S) can be defined as an interactive function between seller's competitiveness vector (P) of products that supplied to the market, and buyer's informed level vector (B) of products that is known from a lot of sources. Then the buyer's informed level can be changed through the information analysis among products by transformation process using comparison matrix (C). So the role of comparison shopping is to construct a comparison matrix and to serve it to the buyers, and to change the buyer's informed level. The changed informed level influences a buyer's satisfaction, that improved satisfaction of purchase is defined as the effectiveness of comparison shopping. As a perfect construction and usage of comparison matrix is impossible, a more efficient method for improving the comparison effectiveness is the comparison challenge. This research shows that comparison shopping makes 9.32% and comparison challenge makes 19.11% enhancement of comparison effectiveness through television market data experiments.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.591-604
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• 2017

The purpose of this study was to develop and evaluate the program for convericient reconfiguration in an attempt to change maladjustmental way of thinking among female junior tennis players. For verification of the program, a qualitative analysis and quantitative analysis were carried out. Through the REBT program for convericient reconfiguration, maladjustmental way of thinking among junior tennis players was drawed and interviews with them were subsequently performed. As a result, REBT counseling technique was applied to understand personal psychological problems and to transform maladjustmental and unreasonable way of thinking into rational belief, confirming positivity toward their situation. After all, their athletic performance as well as holistic development was found to be improved. In quantitative analysis, maladaptive thinking scale sports psychology questionnaire and survey for Korean sports performance strategy were both increased post treatment, suggesting that their psychological status became positive as a result of application of psychological prevention. The results of this study showed that athletic performance would be enhanced and growth and development in personality and self-realization would be expected if various psychological problems in adolescent players were progressed in detailed.

• Journal of Korea Society of Industrial Information Systems
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• v.25 no.5
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• pp.59-71
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• 2020

With the advent of the 4th industrial revolution, technologies for improving human ability are being developed. In particular, human augmentation is developing in the form of not only detecting the ability to understand internal and external conditions of humans, but also detects one's deficiencies and enhances their abilities. With the explosive growth and proliferation of extended reality, human augmentation technology has the potential to be utilized in various aspects of our lives. To analyze recent human augmentation technology in forms of digital enhancements, this paper examines the history and concept of human augmentation, which began with the trans-humanism. Furthermore, we identify core characteristics of human augmentation as user state quantification, cognitive ability measurement and analysis. Then we present how these characteristics should be used in extended reality based human digital augmentation for enhancing cognitive abilities. Lastly, we discuss future directions on feasible applications and development direction of digital human augmentation.

• KIISE Transactions on Computing Practices
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• v.21 no.5
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• pp.379-386
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• 2015

We propose a novel user-perceived performance optimization framework for the Android platform that takes advantage of the user-centric response time analysis. To this end, we propose a new definition of response time, which we call the user-centric response time, as a metric for the quality of user-perceived performance of the smartphone application. In this paper, we describe the design and implementation of an on-line user-centric response time analyzer for Android-based smartphones, which provides smartphone application developers with valuable insight for user-perceived performance optimization. We implemented the user-centric response time analyzer on the Android platform, version 4.0.4 (ICS) running on a Galaxy Nexus smartphone. From our experimental results, the proposed user-centric response time analyzer accurately estimates user-centric response times with an accuracy of 92.0% compared to manually measured times with less than 1% performance penalty. In order to evaluate the efficiency of the proposed framework, we were able to reduce the user-centric response time of the target application by up to 16.4% based on the evaluation results by the proposed framework.

• Journal of the Korea Convergence Society
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• v.10 no.4
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• pp.265-275
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• 2019

The purpose of this study was to investigate the relationship between attitude toward patient safety, empowerment and awareness, performance of standard precaution for healthcare associated infection control and prevention and to identify the influencing factors of the performance in nursing students. The participants were 185 nursing students on one college in J city, Data collection was conducted from september 10 to 21, 2018. The collected data were analyzed with independent t-test, ANOVA, Pearson's correlation coefficient and stepwise multiple regression using SPSS Statistics 22.0 program. As a result of multiple regression analysis showed that the factors influencing the performance of the standard precaution were awareness, empowerment, participation in the patient safety campaign and the performance was explained by 51.0%. Therefore, In order to improve the performance of standard precaution for nursing students, various convergent education programs should be applied to raise awareness and improve empowerment, and it is necessary to seek ways for nursing students to participate actively in patient safety campaigns.

• Journal of the Korea Society of Computer and Information
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• v.27 no.1
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• pp.83-89
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• 2022

As a representative technique of recommender systems, collaborative filtering has been successfully in service through many commercial and academic systems. This technique recommends items highly rated by similar neighbor users, based on similarity of ratings on common items rated by two users. Recently research on time-aware recommender systems has been conducted, which attempts to improve system performance by reflecting user rating time of items. However, the decay rate uniform to past ratings has a risk of lowering the rating prediction performance of the system. This study proposes a rating time-aware similarity measure between users, which is a novel approach different from previous ones. The proposed approach considers changes of similarity value over time, not item rating time. In order to evaluate performance of the proposed method, experiments using various parameter values and types of time change functions are conducted, resulting in improving prediction accuracy of existing traditional similarity measures significantly.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.5
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• pp.375-381
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• 2017

This study examined whether a correlation exists between the oral health indices assessed by experts and the self-perceived oral health status to develop practical oral health improvement programs for adults. In addition, this study provides basic data for carrying out oral health projects that can enhance the quality of life of adults. The raw data for the 2nd year (2014) of the 6th national health and nutrition survey were analyzed. Among those surveyed, adults over the age of 19 were designated as research subjects. In all age groups, correspondents with a higher DMFT Index assessed their self-perceived oral health status to be 'poor'. The oral health index evaluated by experts showed a correlation with the self-perceived oral health status. Therefore, as a higher self-perceived oral health status might help improve the objective oral health indices, oral health improvement programs should be strengthened to instill self-perceived oral health behavior.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.6
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• pp.531-540
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• 2019

The purpose of this study was to establish the relationship between social support(MOS-SSS) and cognitive impairment(MMSE-K) to the elderly in long-term care facilities. The study subjects were 372 aged 65 and older who were admitted to care facilities located in D metropolitan city. Data were collected through a personal interview conducted by interviewers who visited each care facility in October 2018. As a result, the levels of cognitive impairment(MMSE-K) was significantly higher in the group with lower social support(MOS-SSS) scores. In correlation to the cognitive impairment and social support, the cognitive impairment score showed a significant positive correlation between the social support score (r=0.250, p<0.001). Therefore, the lower the social support level, the higher the level of cognitive impairment. In result of the logistic regression, the risk ratio of critical cognitive impairment increased significantly from 2.8 times (ORs=2.75, 95% CI=1.40 to 5.79) in the low group(Q1) than in the very high group(Q4) of social support scores. A hierarchical multiple regression analysis shows that the lower the social support, the higher the cognitive impairment. As such research suggests that the cognitive impairment of the elderly in care facilities increases with lower social support, it is necessary to seek concrete measures to improve social support as part of the measures to enhance the recognition capability of the elderly in care facilities.