• Journal of Distribution Science
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• v.12 no.9
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• pp.83-93
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• 2014

Purpose - This study attempted to identify any influencing relationships, between the antecedent variables and the members' innovative work behavior, which were expected to influence organizational performance based on the extended theory of planned behavior (ETPB). Research design, data, and methodology - The survey was conducted on SMEs in Seoul and its metropolitan area. A total of 158 copies of effective questionnaires were used and were analyzed through correlation analysis, regression analysis, and multiple regression. Results - Self-efficacy, value, intrinsic motivation, and self-enhancing bias have been found to have a positive relationship with innovative work behavior. In addition, transformational leadership was found to moderate the existence of a statistically significant negative influence between value, intrinsic motivation, and innovative work behavior. Conclusions - The results suggest that leaders will be successful in winning members' trust through conducting their behaviors in accordance with the applicable ethical and moral standards and through their fair, transparent, and legitimate management practices with an attitude of 'taking the initiative and setting an example', and this will help solve such problems.

• Communications for Statistical Applications and Methods
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• v.20 no.6
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• pp.455-466
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• 2013

In nested case-control studies, the most common way to make inference under a proportional hazards model is the conditional logistic approach of Thomas (1977). Inclusion probability methods are more efficient than the conditional logistic approach of Thomas; however, the epidemiology research community has not accepted the methods as a replacement of the Thomas' method. This paper promotes the inverse probability weighting method originally proposed by Samuelsen (1997) in combination with an approximate jackknife standard error that can be easily computed using existing software. Simulation studies demonstrate that this approach yields valid type 1 errors and greater powers than the conditional logistic approach in nested case-control designs across various sample sizes and magnitudes of the hazard ratios. A generalization of the method is also made to incorporate additional matching and the stratified Cox model. The proposed method is illustrated with data from a cohort of children with Wilm's tumor to study the association between histological signatures and relapses.

• Communications of Mathematical Education
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• v.22 no.3
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• pp.337-347
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• 2008

'Slope' is an invariant of a straight line and 'Linear Equation' is an algebraic representation of a straight line in the cartesian plane. The concept 'slope' is necessary for algebraically representing a geometrical figure, line. In this article, we investigate how those concepts are dealt with in school mathematics and suggest some improvement methods.

• Journal of KIISE:Computing Practices and Letters
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• v.11 no.3
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• pp.268-274
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• 2005

Since introduction of the PageRank technique, it is known that it ranks web pages effectively In spite of its usefulness, we found a computational drawback, which we call norm-leak, that PageRank values become smaller than they should be in some cases. We present an improved PageRank algorithm that computes the PageRank values of the web pages correctly as well as its efficient implementation. Experimental results, in which over 67 million real web pages are used, are also presented.

• Journal of the Korean Data and Information Science Society
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• v.16 no.2
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• pp.477-505
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• 2005

This paper gives a computer code that gives p-value's for Kendall's Tau table. The code centers around finding the cumulative frequency of a given Sigma value. Current tables usually give critical values for given cut-off percentages. For small sample sizes the critical values may be inexact, and for large samples the values are not be published. SPSS has a built in function for finding the Kendall rank correlation, but the output does not include the Sigma value. Before the code is given, this paper will concentrate around how to find the Sigma value, and the related tau statistic. The computer code is written in MATLAB, but the ideas can be easily transferred to different languages.

• English Language & Literature Teaching
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• v.8 no.2
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• pp.71-90
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• 2003

The purpose of this paper is to discuss recent notions of communicative competence, especially as it is presented in Korean EFL education. Communicative competence has been modified and reinterpreted several times since the term was introduced by Hymes (1970). Paulston (1974) and Savignon (1983) focus on social interaction while Canale and Swain (1980) offer four categories of communicative competence: grammatical competence, discourse competence, sociolinguistic competence, and strategic competence. In addition, Tarone and Yule (1989) can be viewed as a systematic and comprehensive concept as well as a multi-dimensional mode (Bachman, 1990). Brown (2000) presents linguistic and functional aspects and Savignon's (1983) sociolinguistic competence has been transformed into sociocultural competence (Savignon, 2001). This study shows which aspects of Korean EFL education have been changed' and what needs to be accomplished for enhancing student's communicative competence.

• Annual Conference on Human and Language Technology
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• 2013.10a
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• pp.59-63
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• 2013

가독성이란 글을 읽음에 있어 얼마나 쉽게 쓰여졌는가, 얼마나 흥미로운가의 정도를 나타낸다. 기존 연구에서는 가독성을 측정함에 있어 인쇄물에 한정하고 글의 구성 관점에서만을 반영하였다. 하지만, 글은 인쇄물뿐만 아니라 모바일, 태블릿 등 다양한 읽기 매체를 통해 읽어질 수 있으며 글의 흥미에 따라 가독성이 달라지므로 기존의 연구 방법으로는 적절히 반영할 수 없다. 본 논문에서는 읽기 매체에 따라 가독성이 어떻게 달라지는지, 가독성을 측정함에 있어 관점들이 어떻게 반영되는지를 살펴보고자 한다. 서로 다른 읽기 매체들을 사용하여 동일한 뉴스 기사에 대해 가독성을 측정하였으며, 측정된 결과를 사용하여 각 읽기 매체가 가독성를 측정하는 요소들 중 어떤 요소에 큰 영향을 받는지를 살펴본다. 또한, 가독성을 측정함에 있어 글의 구성뿐만 아니라 흥미 관점을 추가하였으며, 이로부터 가독성의 요소들이 글의 구성 관점과 흥미 관점에서 어떠한 차이점을 보이는지 살펴본다.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.39
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• pp.14.1-14.4
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• 2017

Tissue defect reconstruction using radial forearm free flap (RFFF) is a common surgical technique whose success or failure is mainly dependent on venous drainage. RFFF has two major venous outflow systems, superficial and deep vein. Drainage methods include combining both systems or using one alone. This review aims to recapitulate the vascular anatomy and network of RFFF as well as shed light on deep vein as a reliable venous drainage system. We also discuss basic evidence for and advantages of single microanastomosis with coalesced vein to overcome technical difficulties associated with the deep vein system.

• Proceedings of the Korea Society of Mathematical Education Conference
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• 2007.06a
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• pp.37-50
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• 2007

What is a foundational element of plane geometry? Isn't it possible to constitute the contents of plane geometry from that element? In this paper, we suggest a view point that triangle is a foundational element of plane geometry. And take some examples of reconstruction of usually given contents and mathematical activity centered on the triangle in plane geometry.

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2019.08a
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• pp.301-302
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• 2019