• Title/Summary/Keyword: Individual performance

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Performance analysis of symbiotic evolutionary algorithms according to partner selection strategies (공생 파트너 선택전략에 따른 공생진화 알고리듬의 성능 분석)

  • 김재윤;김여근;곽재승;김동묵
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2000.04a
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    • pp.239-242
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    • 2000
  • Symbiotic evolutionary algorithms are stochastic search algorithms that imitate the biological coevolution process through symbiotic interactions. In the algorithms, the fitness evaluation of an individual requires first selecting symbiotic partners of the individual. The symbiotic partner effects the change of individual's fitness and search direction. In this study we are to analyze how much partnering strategies can influence the performance of the algorithms. For this goal extensive experiments are carried out to compare the performance of partnering strategies. The NKC model and the binary string covering problem are used as the test-bed problems. The experimental results indicate that there does not exist statistically significant difference in their performance.

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Success Factors of Knowledge Management in the Perspective of Knowledge Management Integration into Operations (지식경영과 업무의 통합을 위한 지식경영 성공요인 도출 연구)

  • Suh, Hyun-Ju
    • Knowledge Management Research
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    • v.9 no.2
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    • pp.147-167
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    • 2008
  • This paper aims to explore the success factors of knowledge management in the perspectives of knowledge management integration into operations and to examine the effect of those factors on the knowledge management performance of individual users and organizations in order to link knowledge management performances to operational performances. I found two factors such as "knowledge management integration into operation processes" and "knowledge management integration into application systems" and their measures by means of literature review and modified Delphi research. Exploratory and confirmatory factor analysis confirmed that those two factors and their measures are statistically valid. Besides, the structural equation modeling analysis showed that the relationship between "knowledge management integration into operation processes" and "individual user's performance on knowledge management" and the relationship between "individual user's performance of knowledge managemen" and "organizational performance of knowledge management" are significant.

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An Evaluation on the Thermal Performance of the Room Control System for Radiant Floor Heating (바닥복사난방의 실별제어시스템에 관한 열성능 평가)

  • 석호태;김오봉;조영흠;김광우;여명석
    • Journal of the Korean housing association
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    • v.14 no.5
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    • pp.75-82
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    • 2003
  • In this study, the thermal performance of the room control system is analyzed in terms of control performance, potential for coil expansion and energy consumption through experiments comparing the individual room control system and an existing system. The results of this study show that the existing system is not able to supply design water flow rate and does not accurately maintain the set point temperature in each room. However, the individual room control system can set a room air temperature for each room, for it is able to supply design water flow and accurately control the set point temperature in each room and can reduce the energy consumption compared to the existing system. Moreover, the individual room control system can reduce the number of coil division zone and facilitates the construction process, because it can extend the length of the coil division.

A Study on the Performance Analysis Algorithm for Digital Transmission Lines (디지틀 전송선로의 성능 분석 알고리즘에 관한 연구)

  • 서수완;전동근;차균현
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.16 no.6
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    • pp.498-508
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    • 1991
  • This thesis presents a performance analysis algorithm that estimates erro performance of individual links, at the bit level, in an end-to-end digital connection using the model of 3-statte MarKov chain. The link model proposed the burst error behavior of each individual link. It also presents a method to concateante several individual links and extract a model for end-to-end digital connection. This resulting end-to-end model can be used to calculate performance parameters such as bit error rate(BER) and block error(BLER) for any block size.

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Effects of Lactation Stage and Individual Performance on Milk cis-9, trans-11 Conjugated Linoleic Acids Content in Dairy Cows

  • Wang, T.;Oh, J.J.;Lim, J.N.;Hong, J.E.;Kim, J.H.;Kim, J.H.;Kang, H.S.;Choi, Y.J.;Lee, H.G.
    • Asian-Australasian Journal of Animal Sciences
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    • v.26 no.2
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    • pp.189-194
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    • 2013
  • The goal of this study was to evaluate the effects of lactation stage and individual performance on milk cis-9, trans-11 conjugated linoleic acid (CLA) content in dairy cows. In experiment 1, the milk cis-9, trans-11 CLA content from dairy cows in early ($0.33{\pm}0.014%$), middle ($0.37{\pm}0.010%$), and late stages ($0.44{\pm}0.020%$) showed significant differences (p<0.05); and the individual contents of the major fatty acids, especially cis-9, trans-11 CLA in cows of the same lactation were also variable. In the second experiment design as a validation test, our results once again showed that the individual contents of cis-9, trans-11 CLA were various, and a difference of about 2-fold (0.55% vs 0.95%) was observed, although the animals were offered same diet. These data demonstrated that lactation stage and individual performance have considerable effects on milk cis-9, trans-11 CLA contents.

Influence of Nurses' Self-leadership on Individual and Team Members' Work Role Performance (간호사의 셀프리더십 수준이 개인과 팀의 직무역할 수행에 미치는 영향)

  • Kim, Se Young;Kim, Eun-Kyung;Kim, Byungsoo;Lee, Eunpyo
    • Journal of Korean Academy of Nursing
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    • v.46 no.3
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    • pp.338-348
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    • 2016
  • Purpose: The purpose of this study was to examine correlations between nurses' self-leadership and individual work role performance and correlations between self-leadership in nursing units and team members' work role performance. Methods: Participants were 202 conveniently selected general nurses from 5 general hospitals in Korea. The study was carried out on 35 nursing units. Data were collected during February 2015 with self-report questionnaires. Results: For factors affecting individual work role performance, self-expectation, self-goal setting, constructive thought, clinical career in the present nursing unit and marital status accounted for 44.0% of proficiency, while self-expectation, self-goal setting, constructive thought, and marital status accounted for 42.3% of adaptivity. Self-expectation, self-goal setting, constructive thought, self-reward, clinical career in the present nursing unit and position accounted for 26.4% of proactivity. In terms of team members' work role performance, self-reward and self-expectation in nursing units explained 29.0% of team members' proficiency. Self-reward and self-expectation in nursing units explained 31.6% of team members' adaptivity, and self-reward in nursing units explained 16.8% of team members' proactivity. Conclusion: The results confirm that nurses' self-leadership affects not only individual self-leadership but also team members' work role performance. Accordingly, to improve nurses' work role performance in nursing units of nursing organizations, improvement in nursing environment based on self-leadership education is necessary and nurses' tasks rearranged so they can appreciate work-autonomy and challenges of work.

An Impact Analysis of Famer's Individual Competency on Agricultural Organization's Performance (농업인의 개인역량과 조직성과간의 연관관계 분석)

  • Kim, Yoon Doo;Kim, Sa Gyun;Kim, Hyo Mi;Chae, Sue Ho
    • Journal of Agricultural Extension & Community Development
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    • v.20 no.1
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    • pp.143-172
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    • 2013
  • This study aimed at learning the effect of farmers' individual competency on the performance of agricultural organization, and providing the preliminary data about strengthening the competitiveness of agriculture of the country by showing the effect of farmers' individual competency on the performance of agricultural organization. According to the results of our study, among 11 individual competencies, the ability to manage, customer satisfaction, marketing, and getting information have the positive relationship with the performance of agricultural organization, but strategic thinking has the negative relationship with the performance. The relationship between the performance and abstract competencies like teamwork, creativity, innovation, feasibility, and flexibility is not statistically significant. However, the abstract competencies are the core competencies within farmers, so farmers should be educated continuously in the long run in order to raise the performance.

The Common Stock Investment Performance of Individual Investors in Korea (개인투자자의 주식투자 성과 분석)

  • Byun, Young-Hoon
    • The Korean Journal of Financial Management
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    • v.22 no.2
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    • pp.135-164
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    • 2005
  • We analyze trade and balance records of 10,000 stock investment accounts of individual investors for the period of 1998 to 2003. Individual investors em an annual gross return of 12.3% while the KOSPI and the value weighted composite including KOSDAQ stocks yield 13.6% and 9.7% respectively during the same period. Net return performance is 8.3%, a drop of 5.3% mainly due to heavy trading. Individual investors' annual turnover amounts to over 270 percent. In an analysis of groups formed on the month's end position value, the performance of the top quintile is found comparable to the market while the rest yield significantly lower risk-adjusted returns than the market. We also find evidence rejecting the rational expectation model while supporting the overconfidence hypothesis which states overconfidence leads to a higher level of trading, resulting in poor performance. Individuals tilt their stock investment toward high-beta, small, and value stocks.

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The Effect of Organizational and Individual Capabilities on Job Satisfaction and Work Performance in Healthcare Institutions (의료기관에서 조직역량과 개인역량이 직무만족 및 업무수행에 미치는 영향)

  • Joung, Hyun Suk;Hong, Kwan Soo;Lee, DonHee
    • Journal of Korea Society of Industrial Information Systems
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    • v.25 no.4
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    • pp.65-81
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    • 2020
  • This study examines the effects of the organizational and individual capabilities on employee' job satisfaction and work performance. The proposed research model and developed hypotheses were tested using structural equations modeling based on data collected from 243 care team members (doctor and nurse) in hospitals with more than 500 beds in South Korea. The results of study confirm the positive effects of organizational capabilities on job satisfaction and work performance, but individual capabilities did not significant effects on job satisfaction. In addition, there is a positive relationship between job satisfaction and work performance. The study provides valuable insights to hospital top management and administrators, institutions, and policy-makers about the importance of developing organizational and individual capabilities.

Analysis for Impact of Individual Cooperation Activity on Small and Medium sized Firms' Innovation Performance in Daegu : The Moderating Effect of Technological Capability (대구 중소기업의 혁신성과에 미치는 개별 협력 활동의 영향 분석: 기술역량의 조절효과)

  • Kang, Seok-Min
    • The Journal of the Korea Contents Association
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    • v.21 no.4
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    • pp.404-413
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    • 2021
  • Small and medium sized firms(SMFs) would form the technology cooperation network with external firms and institutions of owning a variety of technology and knowledge, and according to resource based theory, forming cooperation network is another resource in uncertain business environment. Unlike the related studies, this study examined the effect of individual cooperation activity on innovation performance for SMFs located in Taegu region, and investigated the moderating effect of technology capability in the relationships between individual cooperation activity and innovation performance. In the empirical results, only cooperation research development positively affected innovation performance, and technology capability moderated the relationships between individual cooperation activity and innovation performance. The empirical findings imply that SMFs should do cooperation research development as an intangible asset to overcome the obstacle of development resulted from limited resources, and that SMFs should increase the impact of individual cooperation activity as promoting technology capability.