• Title/Summary/Keyword: Correlation identification

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The Effects of Ethical Leadership on Organizational Identification and Organizational Commitment (윤리적 리더십이 조직동일시와 조직몰입에 미치는 영향)

  • Hwang, Sang-Kyu
    • Journal of the Korea Safety Management & Science
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    • v.16 no.4
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    • pp.285-294
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    • 2014
  • The paper examines how ethical leadership and organizational identification contributed to explaining organizational commitment. In order to verify the relationships and mediating effect, data were collected from 256 individuals in employees working in small and medium-sized firms at Jinju, Changwon, Gimhae City to test theoretical model and its hypotheses. All data collected from the survey were analyzed using with SPSS 18.0. This study reports findings as follows: first, the relationship between the ethical leadership and the organizational identification is positively related. Second, there was also a positive correlation between the organizational identification and the organizational commitment. Third, the relationship between the ethical leadership and the organizational commitment is positively related. Finally, the organizational identification played as a partial mediator on the relationship between ethical leadership and organizational commitment. Based on these findings, the implications and the limitations of the study were presented including some directions for future studies.

Study of the Indicators of Dampness-Phlegm Pattern Identification Based on Tentative Korean Standard Differentiation of the Symptoms and Signs for Stroke (한국형 중풍 변증 표준시안의 습담 변증 지표에 대한 연구)

  • Jo, Hyun-Kyung;Kim, Joong-Kil;Kang, Byeong-Kab;Yu, Byeong-Chan;Baek, Kyung-Min;Lee, In;Choi, Sun-Mi;Seol, In-Chan
    • The Journal of Internal Korean Medicine
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    • v.27 no.1
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    • pp.237-252
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    • 2006
  • Objectives : This study was done to investigate clinical frequency and correlation among the indicators of dampness-phlegm pattern identification settled by tentative Korean Standard Differentiation of the Symptoms and Signs for Stroke. Methods : The subjects were 147 hospitalized patients with stroke, and a list of registry was made for each of them. Among the five types of pattern identification, fire-heat, dampness-phlegm, blood-stasis and deficiency of Qi and of Yin, those that have shown a high frequency in dampness-phlegm type were categorized as the dampness-phlegm pattern group. Frequency of dampness-phlegm indicators was compared with those from the non-dampness-phlegm pattern group. Correlations among dampness-phlegm indicators were also studied. Results : 1. Dampness-phlegm pattern group included 26 patients out of 147. 2. Among the indicators of dampness-phlegm pattern. those, in order of highest frequency, were 'tiredness or sluggishness', 'white Coated tongue' and 'sputum'. 3. In comparing dampness-phlegm pattern group with non-dampness-phlegml group, the indicators such as 'lightheadedness', 'nigrescence', 'sputum', 'dermatic dysaesthesia' showed significantly high frequency. 4. Among the indicators, 'sputum' and 'tiredness or sluggishness', 'sputum' and 'yellow coated tongue', and 'white coated tongue' and 'yellow coated tongue' showed significant correlation. 5. In investigation of the correlation of scale in symptoms, various results such as positive correlation and negative correlation were obtained. Conclusion : In this study, more sensitive indicators of dampness-phlegm pattern identification were found. Based on these results, it is suggested that a more practical Korean Standard Differentiation of the Symptoms and Signs of Stroke would be established through continuous clinical studies by giving weight on each specific type of pattern identification.

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A Clinical Study on the Pattern-Specific Cut-Point for the Pattern Identification Diagnostic Tool for Climacteric and Postmenopausal Syndrome (갱년기장애 및 폐경기증후군 변증진단 도구의 진단결과 도출을 위한 변증별 절단점 연구)

  • Lee, In-Seon;Kim, Jong-Won;Jeon, Soo-Hyung;Chi, Gyoo-Yong;Kang, Chang-Wan
    • The Journal of Korean Obstetrics and Gynecology
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    • v.32 no.2
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    • pp.29-49
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    • 2019
  • Objectives: This study was a methodological study to verify the reliability and validity and to make a diagnosis of a diagnostic tool for climacteric and postmenopausal syndrome pattern identification (CaPSPI). Methods: This study was conducted from June 1, 2018 to October 18, 2018 with ${{\bigcirc}{\bigcirc}}$ University Korean Medicine Hospital IRB's approval (2018-3). To make a diagnosis using CaPSPI, we decided the cut-points for the tool. Three professors of ${{\bigcirc}{\bigcirc}}$Korean Medical University conducted pattern identification diagnosis. The result is marked from 0 to 3, 0 is 'No', 1 is 'Slightly Yes', 2 is 'Yes' and 3 is 'Very Yes'. And if two or more professors' diagnoses are the same, we took the diagnoses as a diagnostic criteria. The decision of pattern by three experts converted to 0-1 scores in two ways. In "method 1", if the diagnosis was zero points, the score was 0 (have no such identification), and the rest was 1 (have such identification). In "method 2", if the diagnosis was zero or 1 point, the score was 0, and the rest was 1. After that, intraclass correlation was calculated for experts agreement. And logistic regression was conducted. A response variable was the results of the experts' diagnosis and an explanatory variable was the results of the pattern identification diagnostic tool. Results: The diagnosis of the three experts showed excellent concordance of more than 0.794 and showed a significant correlation with the diagnostic tool. Both 'Method 1' and 'Method 2' showed statistically significant effects with the diagnosis of 3 experts and the results of the diagnostic tool. The frequency of cumulative pattern identification diagnosis in 'Method 1' and 'Method 2' were found to be 578 occasions and 203 occasions, respectively. The average number of pattern held by participants in 'Method 1' and 'Method 2' were found to be 5.26 and 1.85, respectively. In both "Method 1" and "Method 2," the yield frequency of liver qi depression was the highest, and the frequency of kidney yin deficiency and liver-kidney yin deficiency was relatively high. Conclusions: Based on the above results, it is thought that, in diagnosis using CaPSPI of menopausal women, 'method 1' could be used for the health diagnosis and prevention, 'method 2' could be used for the pattern diagnosis. On the conclusion, CaPSPI is thought to be available for pattern diagnosis of menopause women.

Identification of Whipping Response using Wavelet Cross-Correlation (웨이블릿 교차상관관계를 이용한 변형체 선박의 휘핑 응답 식별)

  • Kim, Yooil;Kim, Jung-Hyun;Kim, Yonghwan
    • Journal of the Society of Naval Architects of Korea
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    • v.51 no.2
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    • pp.122-129
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    • 2014
  • Identification of the whipping response out of the combined wave-vibration response of a flexible sea going vessel is one of the most interesting research topic from ship designer's point of view. In order to achieve this goal, a novel methodology based on the wavelet cross-correlation technique was proposed in this paper. The cross-correlation of the wavelet power spectrum averaged across the frequency axis was introduced to check the similarity between the combined wave-vibration response and impulse response. The calculated cross-correlation of the wavelet power spectrum was normalized by the auto-correlation of the each spectrum with zero time lag, eventually providing the cross-correlation coefficient that stays between 0 and 1, precisely indicating the existence of the impulse response buried in the combined wave-vibration response. Additionally, the weight function was introduced while calculating the cross-correlation of the two spectrums in order to filter out the signal of lower frequency so that the accuracy of the similarity check becomes as high as possible. The validity of the proposed methodology was checked through the application to the artificially generated ideal combined wave-vibration signal, together with the more realistic signal obtained by running 3D hydroelasticity program WISH-Flex. The correspondence of the identified whipping instances between the results, one from the proposed method and the other from the calculated slamming modal force, was excellent.

Speaker Identification Using PCA Fuzzy Mixture Model (PCA 퍼지 혼합 모델을 이용한 화자 식별)

  • Lee, Ki-Yong
    • Speech Sciences
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    • v.10 no.4
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    • pp.149-157
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    • 2003
  • In this paper, we proposed the principal component analysis (PCA) fuzzy mixture model for speaker identification. A PCA fuzzy mixture model is derived from the combination of the PCA and the fuzzy version of mixture model with diagonal covariance matrices. In this method, the feature vectors are first transformed by each speaker's PCA transformation matrix to reduce the correlation among the elements. Then, the fuzzy mixture model for speaker is obtained from these transformed feature vectors with reduced dimensions. The orthogonal Gaussian Mixture Model (GMM) can be derived as a special case of PCA fuzzy mixture model. In our experiments, with having the number of mixtures equal, the proposed method requires less training time and less storage as well as shows better speaker identification rate compared to the conventional GMM. Also, the proposed one shows equal or better identification performance than the orthogonal GMM does.

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Surface Topography Measurement and Analysis for Bullet and Casing Signature Identification (총기 인식을 위한 측정 시스템 구현 및 해석 알고리즘 개발)

  • Rhee, Hyug-Gyo;Lee, Yun-Woo;Vorburger Theodore Vincent;Reneger Tomas Brian
    • Korean Journal of Optics and Photonics
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    • v.17 no.1
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    • pp.47-53
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    • 2006
  • The Integrated Ballistics Identification Systems (IBIS) is widely used for bullet and casing signature identification. The IBIS obtains a pair of ballistic signatures from two bullets (or casings) using optical microscopy, and estimates a correlation score which can represent the degree of signature match. However, this method largely depends on lighting and surface conditions because optical image contrast is primarily a function of test surface's slope, shadowing, multiple reflections, optical properties, and illumination direction. Moreover, it can be affected with surface height variation. To overcome these problems and improve the identification system, we used well known surface topographic techniques, such as confocal microscopy and white-light scanning interferometry. The measuring instruments were calibrated by a NIST step height standard and verified by a NIST sinusoidal profile roughness standard and a commercial roughness standard. We also suggest a new analysis method for the ballistic identification. In this method, the maximum cross-correlation function CCFmax is used to quantify the degree of signature match. If the compared signatures were exactly the same, CCFmax would be $100\%$.

System identification of a building structure using wireless MEMS and PZT sensors

  • Kim, Hongjin;Kim, Whajung;Kim, Boung-Yong;Hwang, Jae-Seung
    • Structural Engineering and Mechanics
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    • v.30 no.2
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    • pp.191-209
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    • 2008
  • A structural monitoring system based on cheap and wireless monitoring system is investigated in this paper. Due to low-cost and low power consumption, micro-electro-mechanical system (MEMS) is suitable for wireless monitoring and the use of MEMS and wireless communication can reduce system cost and simplify the installation for structural health monitoring. For system identification using wireless MEMS, a finite element (FE) model updating method through correlation with the initial analytical model of the structure to the measured one is used. The system identification using wireless MEMS is evaluated experimentally using a three storey frame model. Identification results are compared to ones using data measured from traditional accelerometers and results indicate that the system identification using wireless MEMS estimates system parameters with reasonable accuracy. Another smart sensor considered in this paper for structural health monitoring is Lead Zirconate Titanate (PZT) which is a type of piezoelectric material. PZT patches have been applied for the health monitoring of structures owing to their simultaneous sensing/actuating capability. In this paper, the system identification for building structures by using PZT patches functioning as sensor only is presented. The FE model updating method is applied with the experimental data obtained using PZT patches, and the results are compared to ones obtained using wireless MEMS system. Results indicate that sensing by PZT patches yields reliable system identification results even though limited information is available.

A National-wide Survey on Utilization of Pattern Identification for Chronic Diseases among Korean Medicine Doctors (전국 한방의료기관 한의사 대상 만성질환의 변증활용 현황 조사)

  • Yeo, Minkyung;Park, Kihyun;Lee, Youngseop
    • Journal of Society of Preventive Korean Medicine
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    • v.21 no.2
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    • pp.23-34
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    • 2017
  • Objectives : The aim of this study was to survey the present utilization of pattern identification(PI) by chronic disease and using PI system in the clinical field among Korean medicine doctors. Methods : This survey was conducted from Oct. 1 to Oct. 31, 2014 by face-to-face interview using structured questionnaire. The subjects were 400 Korean medicine doctors who worked in hospitals or clinics. The questionnaire consisted of whether use clinical experience by chronic disease and the utilization of PI, the utilization of PI systems, the PI utilization rate, and the correlation between utilization PI and so on. General elements consisted of sex, age, clinical experience, place of work, district and so on. Results and Conclusions : This study revealed that clinical experience by chronic disease used 24.0-90.8%. The most chronic diseases were chronic fatigue and chronic pain, and least disease was cancer. Experience of the utilization of PI among Korean medicine doctors who have clinical experience was 87.8-97.1%. Also, the most utilized disease was chronic gastritis & gastric ulcer, and least disease was dyslipidemia. In this case, the most common cases were using the one PI between the utilization of PI systems, and the utilization ratio of Visceral PI was the highest. Phi coefficient between the PI systems in chronic diseases divided into positive correlation and negative correlation. The correlation of dementia between Triple energizer PI and Six excesses PI was the highest at positive correlation, and the frequency of occurrence between Defense, Qi, Nutrient and Blood PI was the highest at positive correlation. The correlation of osteoarthropathy between Meridian and Collateral PI and Sasang Constitutional Medicine was the highest at negative correlation. Also the frequency of occurrence between Qi, Blood, Fluid and Humor PI and Sasang Constitutional Medicine was the highest at negative correlation. We hope that additional studies on systematic PI research of chronic disease which needed to be in korean oriental medicine and meet the needs of clinical consumer continue based on this study.