• The Journal of Asian Finance, Economics and Business
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• 제8권12호
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• pp.353-361
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• 2021

An economic system is a means by which societies or governments organize and distribute available resources, services, and goods across a geographic region or country. The Islamic financial system faces a number of challenges as part of its role as a tool for developing economic activities. This study intends to advance research by Lassoued (2018) by expanding the research population to include Islamic banks in Asia and adding new dimensions - the size of the independent commissioner and corporate governance. The population of this study is the 100 largest Islamic banks in Asia. Statistical calculations with the STATA application is used for data analysis. Based on the test results, it was found that the size of the sharia board and the independent board of directors did not affect the financial stability of Islamic banking companies. Another finding is that the size of the independent commissioner affects financial stability. This finding shows that commissioners have played an active role in the company, indicating that if the sharia banking company has an ideal number of independent commissioners, it will be advantageous to the company's stability and business sustainability.

• 동의생리병리학회지
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• 제16권5호
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• pp.845-850
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• 2002

This paper suggest a methodology for representation of findings which can be called as signs and symptoms. A finding consists of unit signs and unit symptoms, and moreover findings which appear in one individual patient have so many different relationship each other. So, it is nat appropriate to list all of possible findings as medical standard or to fill findings as independent things in paper for medical record. We try to distinguish finding item from finding list, and suggest the methodology by which we can make finding list from finding items. That is, we suggest finding item[Concept], value types, relationship, logical operator, and syntax as a component of representation. And by using urinary symptom, we make the example for representation methodology. Finally, we mention the background knowledge, brief research process of related area.

• Journal of the Korean Statistical Society
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• 제28권3호
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• pp.325-336
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• 1999

Collinearity among independent variables can have severe effects on the precision of response estimation for some region of interest in the experiments with mixture. A method of finding optimal linear restriction on regression parameter in linear model for mixture experiments in the sense of minimizing integrated mean squared error is studied. We use the formulation of optimal restrictions on regression parameters for estimating responses proposed by Park(1981) by transforming mixture components to mathematically independent variables.

• The Journal of the Acoustical Society of Korea
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• 제21권4E호
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• pp.156-163
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• 2002

We apply independent component analysis (ICA) for extracting an optimal basis to the problem of finding efficient features for representing speech signals of a given speaker The speech segments are assumed to be generated by a linear combination of the basis functions, thus the distribution of speech segments of a speaker is modeled by adapting the basis functions so that each source component is statistically independent. The learned basis functions are oriented and localized in both space and frequency, bearing a resemblance to Gabor wavelets. These features are speaker dependent characteristics and to assess their efficiency we performed speaker identification experiments and compared our results with the conventional Fourier-basis. Our results show that the proposed method is more efficient than the conventional Fourier-based features in that they can obtain a higher speaker identification rate.

• 전기학회논문지
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• 제62권6호
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• pp.825-832
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• 2013

In this study, Independent Component Analysis (ICA) algorithms are suggested to extract the original ECG part from the mixed signal contaminated with the unwanted frequency components and especially 60Hz power line disturbances. With this aim, we implement a novel method to suppress the baseline-wandering disturbances and power line artefacts contained in patch-electrodes sensory ECG data by separating the unmixed signal with finding the optimal weight W based on Kurtosis value. With applying brutal force and gradient ascent searching algorithm to find W, we can conclude that the unwanted frequency components especially in the ambulatory ECG data can be eliminated by Independent Component Analysis.

• 한국음향학회지
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• 제21권4호
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• pp.156-156
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• 2002

We apply independent component analysis (ICA) for extracting an optimal basis to the problem of finding efficient features for representing speech signals of a given speaker The speech segments are assumed to be generated by a linear combination of the basis functions, thus the distribution of speech segments of a speaker is modeled by adapting the basis functions so that each source component is statistically independent. The learned basis functions are oriented and localized in both space and frequency, bearing a resemblance to Gabor wavelets. These features are speaker dependent characteristics and to assess their efficiency we performed speaker identification experiments and compared our results with the conventional Fourier-basis. Our results show that the proposed method is more efficient than the conventional Fourier-based features in that they can obtain a higher speaker identification rate.

• Journal of Information Processing Systems
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• 제3권1호
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• pp.33-37
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• 2007

Semantic clustering is important to various fields in the modem information society. In this work we applied the Independent Component Analysis method to the extraction of the features of latent concepts. We used verb and object noun information and formulated a concept as a linear combination of verbs. The proposed method is shown to be suitable for our framework and it performs better than a hierarchical clustering in latent semantic space for finding out invisible information from the data.

• International Journal of Reliability and Applications
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• 제18권2호
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• pp.45-63
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• 2017

In this paper, we have formulated optimum Accelerated Life Test (ALT) plan for a parallel system with two independent components using masked data with ramp-stress loading scheme and Type-I censoring. Consider a system of two independent and non-identical components connected in parallel. Such a system fails whenever all of its components has failed. The exact component that causes the system to fail is often unknown due to cost and time constraint. For each parallel system at test, we observe its system's failure time and a set of component that includes the component actually causing the system to fail. The stress-life relationship is modelled using inverse power law, and cumulative exposure model is assumed to model the effect of changing stress. The optimal plan consists in finding out the optimum stress rate using D-optimality criterion. The method developed has been explained using a numerical example and sensitivity analysis carried out.

• 한국콘텐츠학회논문지
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• 제3권2호
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• pp.19-23
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• 2003

포유류 동물의 시각피질 세포에 나타나는 특징은 크게 단순특징을 추출하는 simple cell과 복잡한 특징에 반응하는 complex cell로 구분된다. 특히, 하위 계층의 세포들은 단순특징을 추출하며, 상위 계층으로 갈수록 복합특징을 추출하는 세포들이 존재한다. 이 연구에서는 입력영상에 독립성분분석을 적용하여 complex cell에 대응하는 복잡한한 특징을 추출하였다. 이 결과는 시각피질 세포의 정보처리에 대한 방식에 대한 이해를 기반으로 시각정보처리 알고리즘을 개발하는 데 기여할 것이다.

• 디지털융복합연구
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• 제17권3호
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• pp.371-377
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• 2019

본 연구는 지역 서점에서 사용자 경험 만족에 영향을 미치는 요인에 관한 연구이다. 최근 증가하는 지역 서점에 대해 공급자 측면에서의 연구가 진행된 사례가 많다. 하지만 실제 사용자의 경험이 산업 발전에 중요하기 때문에 사용자 측면의 연구가 필요하다. 지역 서점을 독립서점, 전문서점, 복합서점으로 분류하여, 경험경제의 4가지 경험 영역의 구체적인 경험 요인을 설문을 통해 분석하였다. 경험 만족에 영향을 미치는 요인을 회귀분석을 통해 확인하였고, 통계적으로 가장 유의미한 수치를 보이는 요인으로 3가지 항목을 확인하였다. 이 연구는 기존 공급자 기준의 선행 연구들과 달리 실제 사용자인 고객 경험에 초점을 두고 주요 경험 요인을 파악하였으므로, 향후 지역 서점의 발전에 도움이 될 것으로 기대한다.