• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1995.10b
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• pp.153-158
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• 1995

In this paper, A new design method of fuzzy modeling is presented for the model identification of nonlinear complex systems. The proposed fuzzy GMDH modeling implements system structure and parameter identification using GMDH(Group Method of Data Handling) algorithm and linguistic fuzzy implication rules from input and output data of processes. In order to identify premise structure and parameter of fuzzy implication rules, GMDH algorithm and fuzzy reasoning method are used and the least square method is utilized for the identification of optimum consequence parameters. Time series data for gas furnaceare those for sewage treatment process are used for the purpose of evaluating the performance of the proposed fuzzy GMDH modeling. The results show that the proposed method can produce the fuzzy model with higher accuracy than other works achieved previously.

• International Journal of Advanced Culture Technology
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• v.7 no.2
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• pp.42-51
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• 2019

This study tests the applicability of concepts of integrated leadership-in-government and follower happiness in South Korea and then comes up with implication and limitations on the applicability based on the study of Mathias et al. (2018). The study adopts eight leaderships: accountability, rule-following, political loyalty, network governance, task-oriented, relations-oriented, change-oriented and diversity-oriented leadership that Mathias et al. (2018) employ from Fernandez et al. (2010) and Tummers and Knies (2016). We also select job satisfaction and self-perceived performance to measure follower happiness depending on Mathias et al. (2018). According to the analytical results, it shows that accountability leadership, network governance leadership, task-oriented leadership, relations-oriented leadership, and change-oriented leadership have positive influences on follower happiness measured. Based on the analytical results, this study suggests implication and limitation on the applicability of the link between integrated leadership and follower happiness in comparison to the results from Mathias et al. (2018).

• Journal of the Ergonomics Society of Korea
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• v.19 no.2
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• pp.33-45
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• 2000

Present study was performed to compare different types of teleoperation performance measures. A modified Cooper-Harper rating scale and a distance measure were newly introduced and compared to two traditional measures, the error rate and time-to-completion. Participants performed a simulated telerobotic task with varying visual display interfaces. The results of correlation analyses revealed that the modified Cooper-Harper ratings had a close association with the error rate measure. The distance measure also appeared to be a consistent performance measure, which accounted for both the error rate and time-to-completion. A further analysis, however, showed that the effectiveness of each performance measure varied with the level of task difficulty. The results imply that the choice of performance measure should be made based on the task difficulty as well as the particular task being studied. The results revealed here also have implication for performance measures of various display and control systems including aircraft navigation displays and tactical displays.

• Journal of Navigation and Port Research
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• v.40 no.5
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• pp.285-290
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• 2016

Accidents and incidents caused by poor performance in the maritime industry suggest the need to find ways to improve performance in order to operate effectively and improve safety. The data for this study was collected from maritime students and involves the performance and levels of intrinsic and extrinsic motivation. Various motivational factors were identified and the ways in which these factors relate to performance was analyzed. The importance of considering motivation when recruiting new trainees and workers, and continually looking for ways to increase intrinsic motivation, is stressed throughout this paper. The results suggest that high levels of good quality motivation correlate positively with better performance.

• Korean Management Science Review
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• v.20 no.1
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• pp.1-23
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• 2003

Knowledge Management System is defined as an Information system to support the integrated knowledge management process for maximizing value of the knowledge assets in organizations. From that point of view, the system performance - the usage level of the system and user satisfaction - can be an available measure of the knowledge management system success. Many previous research were focused on the application of a new technological component for knowledge management processes or the construction of the overall system architecture in spite of the importance of the system performance. The purpose of this study is to Identify the factors affecting the knowledge management system performance. To do this, we conducted an exploratory case studies of eight companies. We applied theories of information system success to knowledge management system and investigated some specific strategic components as additional affecting factors. Finally, we proposed research model and ex propositions regarding the factors affecting the knowledge management system performance. The implication of the findings and future research directions were discussed.

• Knowledge Management Research
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• v.13 no.2
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• pp.95-109
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• 2012

Changing customer expectation, global competition, and technological requirements force firms to develop agile supply chain capabilities sustaining competitive advantage and business success. To respond, firms are seeking to enhance supply chain agility across the inter-organizational, this study explores the relationship between supply chain competence and supply chain agility on firm performance. The research reviews literature on supply chain capability and classifies capability into two categories as competence and capability based on resource based view and dynamic capabilities. It describes a framework to explore the relationships among supply chain competence (IT flexibility, supply chain flexibility, shared value), supply chain capability (supply chain agility), and firm performance (supply chain performance). The purpose of this study is to find the determinants of supply chain agility and improving firm performance in the perspective of vendor companies. The results indicate strong, positive, and direct relationships between supply chain competence and supply chain agility. Supply chain agility have significant relationships with firm performance. Implication for future research and practice are offered.

• The Journal of Information Systems
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• v.18 no.2
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• pp.61-81
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• 2009

Numerous small and medium-sized manufacturing companies have implemented or plan to introduce ERP for their own survival in the highly competitive global market. Despite of increasing number of companies implementing ERP, there has been few research on evaluation of ERP performance in small and medium manufacturers. Thus, in this paper, the impact of ERP implementation on the organizational performance based on Balanced Score Card is investigated and also critical success factors are discovered. The results of analysis show positive relationships between the ERP implementation and organizational performance. This paper suggests some practical implication on the ERP implementation to the practitioners.

• Korea Journal of Hospital Management
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• v.28 no.2
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• pp.66-78
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• 2023

Purposes: This study explored the difference analysis of financial performance and technological innovation according to the ESG management activities of healthcare companies based on the time before and after the mandatory ESG management reporting of listed Chinese healthcare companies in China. Methodology: This study collected ESG management activities, corporate financial performance, and technological innovation data of Chinese listed healthcare companies by using Bloomberg Database and China-listed company reports to collect data for analyzing differences between groups through T-test. Findings: ESG activities in the healthcare industry have a certain impact on corporate financial performance, but have no impact on corporate technological innovation. Like the world trend, the ESG activities and financial results of China's healthcare industry have shown a positive development direction in recent years, and ESG scores are rising. Practical Implication: Since 2018, ESG activities in China's healthcare industry have flourished, and ESG activities and financial performance have developed in a positive direction.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2001.01a
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• pp.373-377
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• 2001

This study is to examine the factors that influence the performances of service quality in university hospitals by investigating systematically the condition of service quality. A synthesis of the health care quality is conducted to identify physical quality, operating process quality, and human resources quality that relate to both the overall satisfaction and intention of revisit. Based on the proposed hypotheses, the relationships between the service quality factors and performance are examined using data collected from 167 patients in three hospitals, Korea. Reliability and validity tests are performed for examining its relationship with service quality in health care systems. Total eight independent variables with respect to three service quality levels and two dependent variables for performance are identified for relationships between service quality and performance in health care systems. The results provide health care managers with a managerial insight to the planning function of performance with service quality in health care systems as well as other operations (business, government, or other service organizations) systems. Implication of the study for theory, future studies, and practices are discussed.

• East Asian Economic Review
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• v.21 no.2
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• pp.103-121
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• 2017

This paper experimentally studies the performance of negotiation considering individual and party, like a country, share of benefit over the best ones. It experiments two-stage bargaining games, internal and external negotiations. From the experimental results, this paper shows strong tendency to select fair allocation in the internal negotiations, but the tendency would be weaker with attractive outside option. In addition, the outside option may claim difference in individual benefit. From the regressions on individual performance in the negotiations, being a proposing party would matter to enhance the performance. However, relative individual performance within party fairness matters. Still attractive no-agreement options happen to break the tendency. As policy implication for trade negotiation, this paper warns that possible loss in individual benefit from not active participation to the external negotiations, no active role of proposer in case that players stick to internal allocations, and deviation of advantageous sector due to attractive outside options.