• Management & Information Systems Review
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• v.35 no.1
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• pp.143-154
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• 2016

In this research, The new CEO is expected to increase a reporting income through earning management for individual benefit such as a good reputation, high compensation and CEO' s contract extension in the early years of service, of which may influence value relevance of the accounting numbers. We investigate the change of value relevance from 2004 to 2014, compare firms with a change of CEO and firms with non-change of CEO and analysis the value relevance in the early years and in the late years of the new CEO. The results of research are as follows. First, value relevance of EPS of firms with change of CEO are decreased, whereas value relevance of BPS are increased in the regression of all sample. Second, value relevance of EPS are decreased, whereas value relevance of BPS are increased in the early years of the new CEO. This research makes a contribution to provide the first proof about influence of value relevance by the earning management in the early years of the new CEO in Korea.

• Journal of Convergence for Information Technology
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• v.10 no.3
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• pp.7-15
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• 2020

As the paradigm shifts from treatment and provider-centered healthcare to prevention and consumer-centered healthcare, the integration of ICT convergence technology is calling for an era of digital healthcare industry revival in the Fourth Industrial Revolution. It is possible to provide individual customized medical services utilizing various medical data, and it is possible to provide various medical services that transcend time and space through integration with other industries. Such digital healthcare includes health, nutrition, exercise, and patient care, while the digital healthcare industry includes healthcare and IT related to medical devices, medical information systems, and healthcare platforms that can provide personal health and medical information. Due to the social demands of the aging and the increase of chronic diseases, digital healthcare is considered as an important policy in the fourth industrial revolution in Korea. In order for the digital healthcare industry to contribute to the prolongation of human life and the improvement of quality of life, it is urgent to develop related infrastructures, legal institutions, and prepare policies. In addition, it is important to activate convergent education to foster talents who will lead the digital healthcare industry. The purpose of this study was to examine the trends of the digital healthcare industry in the era of the fourth industrial revolution and the direction of government R & D policies, and to derive directions and suggestions for future development.

• Journal of Korea Game Society
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• v.11 no.5
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• pp.43-52
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• 2011

This study assumed the competitive structure based on genre classification for Korean online game market, and carried out the analysis on the degree and characteristics of the competition that appear differently in each sub market classified according to the genre. Analysis result can be summarized as follows. (1) In the view of the total play time, the proportions of the online games in each genre were appeared in the order of "RPG > FPS/RTS > Sports > Arcade/Poker > Go-stop > Board/Racing". (2) In the view of the shares in the play time, the degree of competition between games in the sub market structure of the online games according to the genre was found in the order of "RTS > Racing > FPS/Sports > Go-stop > Poker > Arcade/Board > RPG". The evaluation and interpretation of the high and low of the competition degree are as follows. As the degree of competition is higher, (RTS > Racing > ${\cdots}$) the royalty and the ratio of reusing of the users for the game is lower, and on the other hand, the tendency of replacing and using appeared higher, so the market entry barrier for a new game can be evaluated to be low. Reversely, as the degree of competition is lower, (${\cdots}$ > Arcade/Board > RPG) the royalty and the ratio of reusing of the users for the game is higher, and on the other hand, the tendency of replacing and using appeared lower, so the market entry barrier for a new game can be evaluated to be high.

• Journal of the Korean Society of Radiology
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• v.10 no.1
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• pp.65-72
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• 2016

Therefore the job satisfaction of organizational members should be raised to cut down on their turnover rate. The purpose of this study was to examine the relationship of the general characteristics of radiological technologist-turned hospital managers to their job satisfaction and turnover intention in a bid to identify factors affecting their job satisfaction and turnover intention. The major findings of the study were as follows: First, as for job satisfaction and turnover intention, the radiological technologist-turned hospital managers investigated got a mean of 3.00 and 2.79 respectively on overall job satisfaction and turnover intention out of five points. Their job satisfaction was slightly above the average (2.5), which indicated that they weren't gratified with their job. Their turnover intention was a little above the average as well, which implied that there was a tendency for them to seek another job. The findings of the study seem to suggest that the radiological technologist-turned hospital managers should make a new investment in their own future as their identity was thrown into confusion with age. They are expected to make a preparation for their future to open up a new chapter for themselves instead of being merely contented with their present position.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.13 no.3
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• pp.197-205
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• 2020

Korean language has the characteristics that the pronunciation of phoneme units such as vowels and consonants are fixed and the pronunciation associated with a notation does not change, so that foreign learners can approach rather easily Korean language. However, when one pronounces words, phrases, or sentences, the pronunciation changes in a manner of a wide variation and complexity at the boundaries of syllables, and the association of notation and pronunciation does not hold any more. Consequently, it is very difficult for foreign learners to study Korean standard pronunciations. Despite these difficulties, it is believed that systematic analysis of pronunciation errors for Korean words is possible according to the advantageous observations that the relationship between Korean notations and pronunciations can be described as a set of firm rules without exceptions unlike other languages including English. In this paper, we propose a visualization framework which shows the differences between standard pronunciations and erratic ones as quantitative measures on the computer screen. Previous researches only show color representation and 3D graphics of speech properties, or an animated view of changing shapes of lips and mouth cavity. Moreover, the features used in the analysis are only point data such as the average of a speech range. In this study, we propose a method which can directly use the time-series data instead of using summary or distorted data. This was realized by using the deep learning-based technique which combines Self-organizing map, variational autoencoder model, and Markov model, and we achieved a superior performance enhancement compared to the method using the point-based data.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.1
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• pp.340-348
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• 2016

This study, through a review of advanced research, first, examined the attitudes to products traded in import agency shopping malls and the characteristic variables(product characteristic, customer characteristic) that influence the purchasing intention to understand influencing relationship. Second, the role of adjustment in the relationship between the attitude to the products and the purchasing intention was examined by putting the perceived risk to the moderating variables. Third, efficient controllable basic data in the characteristic variables capable of influencing the management of and import agency shopping mall based on the implications was obtained from the above research result. The 126 responses collected from a questionnaire were analyzed using the SPSS 23.0 statistics package, and the analysis result can be summarized as follows. First, the main cause that influences the attitude of treated products in an import agency shopping mall is the country of origin, national image, innovativeness and price perception, not the brand image. Second, the attitude of the products influences the purchasing intention of the import agency shopping mall. Third, the perceived risk partially plays a role as a moderating variable in the relationship between the attitude of products and the purchasing intention.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.6
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• pp.1856-1868
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• 2008

This paper is about what is the effect of cultural marketing - which is affecting business ethics and social responsibility - on corporate image and formation of brand asset, and about which is getting more influence by cultural marketing among factors that is forming corporate image and brand asset. The results are like below. First, cultural marketing activities had an indirect influence on the corporate brand asset. Second, cultural marketing had an direct influence on the corporate brand image. Third, cultural marketing had a positive impact on reminding of the brand image. Fourth, social responsibility and business ethics had an indirect influence on the brand loyalty. Fifth, corporate social responsibility and business ethics had a positive impact on the brand image. Sixth, among the corporate social responsibility, community activities played a control variables. Seventh, regarding the characteristics of the respondents it showed that there's perception gaps among marketing, responsibility and ethics as well as brand assets. All in all, cultural marketing had an indirect effect on formulating corporate brand asset by the means of corporate image. The result is pointing out the importance of establishing a strategic marketing plan that is taking harmony between the character of cultural marketing and media, continuous and long-term plan, connection with the type of the brand asset into account. Moreover, as people realized that corporate business activities are brining not only economic consequences, such as providing goods and services but also social consequences, such as uneven distribution of wealth, dirty links between business and politics, consumers' security, pollution, and etc., companies are reconsidering its own role in society. This reconsideration is called corporate social responsibility and this pushed the company to keep business ethics together with their business.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2000.11a
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• pp.17-17
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• 2000

탄소섬유/에폭시 적충복합재는 경량성 및 비강도, 비강성이 우수해 최근 들어 항공기, 자동차, 우주선 등에 대한 적용이 급속도로 증가하고 있다. 그러나 적충복합재 구조물에 있어 최대 약점 중 하나는 적충된 면이 서로 떨어지는 충간분리가 발생 할 수 있다는 것이다. 본 논문에서는 탄소섬유/에폭시 적충복합재의 파괴특성을 향상시키기 위해 프리프레그 (prepreg)를 이온빔으로 표면처리하는 방법에 대해 연구하였다. 즉 프리프레그를 $Ar^+$ 이온도 움반응법에 의해 표면처리 하였으며 이를 적용, 열림모드 파괴특성을 검토하였다. 즉 표준 프리프레그와 표면처리 된 프리프레그를 이용 $0^{\circ}$ 단일방향 DCB(Double Cantilever Beam) 시편을 제작하였으며, 각각의 경우에 대하여 파괴시험을 수행하였다. 파괴시험으로부터 파괴 저항곡선(R-곡선)을 결정하여 이를 비교 검토함으로서 프리프레그의 표면처리가 파괴특성에 미치는 영향을 해석하였다. 본 연구를 통해 얻어진 결과를 요약하면 다음과 같다. 첫째, 층간분리 길이가 동일한 경우 표면처리한 경우의 컴플라이언스가 표면처리 하지 않은 경우에 비해 작게 나타남을 알 수 있었다. 둘째, 파괴하중 값은 컴플라이언스와 반대현상을 나타낸다. 즉 표면처리한 경우의 파괴하중 이 표면처리 하지 않은 경우에 비해 크게 나타남을 알 수 있었다. 셋째, 표면처리 한 시편의 경우 R-곡선이 향상됨을 알 수 있었다. 즉 표면처리 한 경우의 열림모드 파괴이성, $G_{Ic}$ 값은 표준 시편의 값보다 24% 높았다. 이는 프리프레그의 표면처리 가 충과 충간의 접착강도를 증가시키고 또한 탄소섬유와 에폭시 간의 계면력을 증가시킨데 기인하는 것으로 사려된다.되었으며, duty-on 시간의 증가에 따라 $Cr_2N$ 상의 형성이 점점 많아져 80% duty-on 시간 경우에는 거의 CrN과 $Cr_2N$ 상이 공존하는 것으로 나타났다. 또한 duty-on 시간이 증가할수록 회절피크의 세기가 증가하여 결정화가 더 많이 진행되어짐을 알 수 있었다. 마찬가지로 바이어스 펄스이 주파수에 다른 결정성의 변화도 펄스의 주파수가 증가할수록 박막이 결정성이 좋아지고 $Cr_2N$ 상이 쉽게 형성되었다. 증착 진공도에 따른 결정성은 상대적으로 질소의 농도가 높은 낮은 진공도에서는 CrN 상이 주로 형성되었으며, 반대로 높은 진공도에서는 $Cr_2N$ 상이 많이 만들어졌다. 즉 $1.3{\times}10^{-2}Torr$의 증착 진공도에서는 CrN 상만이 보이는 반면 $9.0{\tiems}1-^{-2}Torr$ 진공도에서부터 $Cr_2N$ 상이 형성되기 시작하여 $5.0{\tiems}10^{-2}Torr$ 진공도에서는 두개의 상이 혼재되어 있음을 알 수 있었다. 박막의 내마모성을 조사한 결과 CrN 박막의 마찰 계수는 초기에 급격하게 증가한 후 0.5에서 0.6 사이의 값으로 큰 변화를 보이지 않았으며, $Cr_2N$ 박막도 비슷한 거동을 보였다.차 이, 목적의 차이, 그리고 환경의 의미의 차이에 따라 경관의 미학적 평가가 달라진 것으로 나타났다.corner$적 의도에 의한 경관구성의 일면을 확인할수 있지만 엄밀히 생각하여 보면 이러한 예의 경우도 최락의 총체적인 외형은 마찬가지로 $\ulcorner$순응$\lr

• Proceedings of the Korea Information Processing Society Conference
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• 2001.10a
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• pp.727-730
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• 2001

멀티미디어 환경의 급속한 발전에 의해 영상처리 기술은 인간의 인체와 관련하여 얼굴인식, 제스처 인식에 관한 응용과 더불어 스포츠 관련분야로 깊숙히 정착하고 있다. 그러나 입력영상으로부터 움직이고 있는 선수들의 동작을 추출 및 추적하는 일은 컴퓨터비전 연구의 난 문제 중의 하나로 알려져 있다. 이러한 축구경기의 TV 중계에 있어서 하이라이트 장면의 자동추출(자동색인)은 그 경기의 가장 집약적인 표현이며, 축구경기 전체를 한 눈에 파악할 수 있도록 해주는 요약(summary)이자 intensive actions이고 경기의 진수이다. 따라서 축구경기와 같이 비교적 기 시간(대체로 1시간 30분) 동안 다수의 선수(양 팀 합해서 22명)들이 서로 복잡하게 뒤얽히면서 진행하는 경기의 하이라이트 장면을 효과적으로 포착하여 표현해 줄 수 있다면 TV를 통해서 경기를 관람하는 시청자들에게는 경기의 진행상황을 한 눈에 효과적으로 파악할 수 있게 해주어 흥미진진한 경기관람을 할 수 있게 해주고, 경기의 진행자들(감독, 코치, 선수 등)에게는 고차원적이고 과학적인 정보를 효과적으로 제공함으로써 한층 진보된 경기기법을 개발하고 과학적인 경기전략을 세울 수 있게 해준다. 본 논문은 이상과 같이 팀 스포츠(Team Spots)의 일종인 축구경기 하이라이트 장면의 자동색인을 위해 뉴럴네트워크 기법을 이용하여 그룹 포메이션(Group Formation) 중의 공격패턴 자동분류 기법을 개발하고 이를 검증하였다. 본 연구에서는 축구경기장 내의 빈번하게 변화하는 장면들을 자동으로 분할하여 대표 프레임을 선정하고, 대표 프레임 상에서 선수들의 위치정보와 공의 위치정보 등을 기초로 하여 경기 중에 이루어지는 선수들의 그룹 포메이션을 추적하여 그룹행동(group behavior)을 분석하고, 뉴럴네트워크의 BP(Back-Propagation) 알고리즘을 사용하여 축구경기 공격패턴을 자동으로 인식 및 분류함으로써 축구경기 하이라이트 장면의 자동추출을 위한 기반을 마련하였다. 본 연구의 실험에는 '98 프랑스 월드컵 축구경기의 다양한 공격패턴에 대한 비디오 영상에서 각각 좌측공격 60개, 우측공격 74개, 중앙공격 72개, 코너킥 39개, 프리킥 52개의 총 297개의 데이터를 추출하여 사용하였다. 실험과는 좌측공격 91.7%, 우측공격 100%, 중앙공격 87.5%, 코너킥 97.4%, 프리킥 75%로서 매우 양호한 인식율을 보였다.

• Journal of the Korea institute for structural maintenance and inspection
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• v.22 no.6
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• pp.72-80
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• 2018

In this research, we tried to investigate the influence of concrete on cracks after applying to the actual construction site using the TPS construction method which can be easily charged by the mechanical injection method. To summarize the results, the following It is as follows. First, in the case of ultrasonic velocity, it can be seen that the ultrasonic wave passes rapidly at an average of about 36 mm / sec as compared with the syringe method when using the TPS method, and in the case of the injection depth, the syringe method In the case of TPS construction method, it showed an excellent tendency that 100% of the water retentive material was charged with all the formulations under a strong injection pressure. In the case of compressive strength, it was shown that the average was increased by 16.8% at the time of using the TPS construction method, and it was found to be structurally superior. Taken together, it is possible to confirm the behavior of the crack repairing agent by improving the quality by improving the strength and confirming the window installation by filling the injection material into the closed space at the crack site when using the TPS method compared with the syringe method. In addition, it is expected that construction time will be improved by shortening the construction period of about 5 days for the TPS construction method construction section 532 m, and usability will be expanded by the crack repair method of concrete structure.