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Development and Distribution of Deep Fake e-Learning Contents Videos Using Open-Source Tools
HO, Won,WOO, Ho-Sung,LEE, Dae-Hyun,KIM, Yong Korea Distribution Science Association 2022 유통과학연구 Vol.20 No.11
Purpose: Artificial intelligence is widely used, particularly in the popular neural network theory called Deep learning. The improvement of computing speed and capability expedited the progress of Deep learning applications. The application of Deep learning in education has various effects and possibilities in creating and managing educational content and services that can replace human cognitive activity. Among Deep learning, Deep fake technology is used to combine and synchronize human faces with voices. This paper will show how to develop e-Learning content videos using those technologies and open-source tools. Research design, data, and methodology: This paper proposes 4 step development process, which is presented step by step on the Google Collab environment with source codes. This technology can produce various video styles. The advantage of this technology is that the characters of the video can be extended to any historical figures, celebrities, or even movie heroes producing immersive videos. Results: Prototypes for each case are also designed, developed, presented, and shared on YouTube for each specific case development. Conclusions: The method and process of creating e-learning video contents from the image, video, and audio files using Deep fake open-source technology was successfully implemented.
Howon Kim,Youngtae Sung,Euisoon Jeong J-INSTITUTE 2022 Regulations Vol.7 No.1
Purpose: This study comprehensively identified which of the sub-Factor s of organizational fairness they per-ceived had a positive effect on organizational effectiveness. In addition, this study verified how power distance tendency, an individual characteristic variable, affects the relationship between their job satisfaction, organiza-tional commitment, and organizational citizenship behavior. Method: The scope and method of this study are as follows. First, the time range of the study ran from Decem-ber 1, 2020 until December 30, 2020, and the spatial range of the study was the Daegu Metropolitan Police Agency, 10 police stations affiliated, and 31 patrol divisions within the police station. Second, as for the method of the study, a reference study and an empirical study were concurrently conducted via a questionnaire survey. Results: The results of this study are as follows. First, it was found that the organizational fairness perceived by police officers had a significant positive effect on organizational effectiveness. Second, in the influence of power distance tendency on organizational effectiveness, it was found that the higher the power distance tendency, the more negative effect on job satisfaction, organizational commitment, and organizational citizenship behavior. Conclusion: The implications of this study are as follows. First, the establishment of a fair police organizational culture should precede. Second, in order to ensure that individual police officers have an active and positive attitude in enhancing organizational effectiveness, organizational efforts should be made to resolve complaints based on compensation results. Third, it is necessary to solve operational problems by receiving expert diagnoses on the operation of the performance-based pay system of the police organization and to actively collect and reflect the opinions of police officers who are subject to application.
DaHOG-based Mobile Robot Indoor Global Localization
Howon Cheong,Euntai Kim,Sung-Kee Park 제어로봇시스템학회 2020 제어로봇시스템학회 국제학술대회 논문집 Vol.2020 No.10
This paper suggests an indoor environment descriptor and global localization strategies for indoor robot navigation using a metric sensor and mono camera. Other researches use various feature descriptors (i.e. geometric features, visual local invariant features, and objects) for robot pose estimation. However, most of the real environments have repeated similar texture patterns or few objects although they need salient information for successful localization. To overcome this problem, we suggest a new environment descriptor, which is composed of the histogram of oriented gradient(HOG) and approximated 2D-polar coordinate distance of visual vertical edges. We call it Distance-assisted HOG (DaHOG). For the matching process, we use the omnidirectional datasets that have a circular pattern matching problem. Here, we solve the problem by proposing a new global localization method based on a spectral matching technique. We show that our method is effective with experiments in real environments where there is a lack of distinctive features and objects.
Howon Lee,Eunjin Kim,Hyungsub Kim,JeeHyeon Na,Hyun-Ho Choi 한국통신학회 2022 ICT Express Vol.8 No.4
In B5G heterogeneous cellular networks, a rapid increase in the number of small cell base stations (SBSs) to support a massive number of devices tends to waste a considerable amount of energy. Therefore, intelligent management of SBSs’ power consumption is one of the most important research issues. We herein propose quasi-distributed Q-learning-based cell breathing (QD-QCB) considering full and partial SBS collaborations for maximizing network energy efficiency. Also, the concept of an aggregated active SBS set based on regional user distributions is proposed for computing- and energy-efficient operation. Through intensive simulations, we show that the proposed QD-QCB algorithm can achieve optimal energy efficiency, and improve the network energy efficiency significantly compared with conventional algorithms such as no transmit power control, random cell breathing, and greedy cell breathing algorithms.
An Analysis into the Dose Rate of Photoneutron Occurring in a Linear Accelerator
Howon Jang(장호원),SeongJin Jin(진성진),Jaeyong Je(제재용) 한국방사선학회 2017 한국방사선학회 논문지 Vol.11 No.7
본 연구는 선형가속기를 이용하여 10 MV 광자선을 조사하는 과정에서 발생하는 광중성자의 선량률 변화를 측정하고자 하였다. 또한 방사선 조사가 종료된 후 광중성자의 수명을 분석하고자 하였다. 광중성자 측정은 BF3 비례계수관을 사용하였으며, 광중성자의 선량률 측정결과를 2초 간격으로 3부분으로 나누어 분석 하였다. 측정결과 조사야 내에 금속판이 없는 경우와 납판이 존재할 때 광중성자의 발생이 가장 빠르게 나타났으며, 최종적으로 백그라운드 수준의 선량률을 나타내는 시간은 물질의 종류와 무관하게 약 1분 40초 정도의 수명시간을 나타내었다. 따라서 광중성자가 수명을 다할 때까지의 시간에 따른 선량률은 물질의 종류와 임계에너지에 따라 다르게 나타내었다. 그러나 최종 수명시간은 물질의 종류에 관계없이 비슷한 결과를 나타내었으므로 물질의 종류가 광중성자의 수명시간에는 크게 관여하지 않는다고 판단되어진다. This research aims at measuring the changes in the dose rate of photoneutron occurring in the process of the investigation into the 10 MV photon beam with a linear accelerator. In addition, the life time of the photoneutron after the end of irradiation was to be analyzed. The photoneutron were measured with a BF3 proportional counter, and the measurement results of the dose rate of the photoneutron were analyzed in 3 parts at intervals of 2 seconds. The measurement results showed that the photoneutron were generated fastest when there was no metal plate inside the radiation field and when there was a lead plate, and that, as for the time that shows the final dose rate at the level of background, the life time was about 1 minute and 40 seconds regardless of the kinds of materials. Therefore, the dose rate according to the time until the photoneutron run out was proved to be different depending on the sorts of the materials and the threshold energy. However, final life time showed similar results regardless of the kinds of the materials, it can be concluded that the kinds of materials don t get involved in the life time of photoneutron.