• Journal of the Korean Society of Radiology
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• v.15 no.6
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• pp.911-917
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• 2021

Severe Acute Respiratory Syndrome is being impacted worldwide by the prolonged COVID-19 situation. Due to the impact of COVID-19, domestic educational institutions have also changed their teaching methods. Domestic universities traditionally aim for face-to-face lectures, but due to the pandemic, they are conducting non-face-to-face lectures. This study aims to evaluate the effect of non-face-to-face lectures on radiology students. The subjects of this study are students of the Department of Radiology at University D in Daegu. As for the contents of the study, satisfaction with non-face-to-face lecture delivery, concentration, and comprehension was evaluated. Data analysis was performed in SPSS Ver. 26 was used, and the reliability measurement was found to be Cronbach's alpha coefficient = 0.805. In the results of this study, the satisfaction of non-face-to-face lecture delivery, concentration, and comprehension was overall high. However, satisfaction with theoretical subjects (2.08±0.88) was significantly different from that of practical subjects (2.51±1.10) (t=-9.880, p<.001). Satisfaction by grade level was highest in the first grade. As a result, it is judged that non-face-to-face theoretical lectures require more careful preparation from lecture planning than practical lectures, and further research is expected in the future.

• Journal of Korea Game Society
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• v.21 no.4
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• pp.85-94
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• 2021

The purpose of this study is to analyze the educational effect of non-face-to-face classes in elementary school social studies using Minecraft. the fourth grade of elementary school is divided into experimental and control groups, and social studies using Minecraft are conducted for one semester. As a result of the study, the experimental group students who experienced elementary social studies classes using Minecraft showed a significant increase in achievement, learning attitude, and sense of place compared to the control group, focusing on questions, explanations, and opinions in the Minecraft virtual space It was confirmed that they were cooperating with each other.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.423-424
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• 2021

본 연구는 성인학습자를 대상으로 효과적인 비대면 수업방법에 대한 개선점을 모색하여 교수자의 수업역량 향상에 기초자료를 제공하고자 하였다. 이를 위해 PBL(문제중심수업) 교수법을 기초로 4주차 수업을 설계하고 웹엑스(Webex)를 활용한 교수법을 49명의 학생에게 적용하였다. 연구 결과는 다음과 같다. 첫째, 고연령 성인학습자를 대상으로 디지털기기 활용법에 대한 사전 숙지가 필요하며, 둘째, 팀활동을 위한 웹엑스 세션별 수업은 강의실 수업에서 수동적인 학생들의 적극적인 수업참여를 이끌었고, 셋째, PBL(문제중심수업) 수업 방식은 비대면 수업에서도 학생주도의 수업을 이끌어 내고 활발한 상호작용을 통해 학생들의 문제 해결과 실천역량을 향상시킬 수 있었다. 이러한 연구 결과는 성인학습자를 대상으로 한 교수자의 비대면 수업 교수법에 기초적인 자료가 될 것이다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.24 no.10
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• pp.1288-1293
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• 2020

As fears of infection with the Corona 19 virus increase, an untact mood is also blowing in the real estate market. Changes in life style are bringing about changes in the way of life and patterns of consumption. In the real estate marketing market, such changes are inevitable. In particular, marketing using a real estate model house has the characteristics of marketing that is closely related to the denseness that many people visit in an enclosed space. These characteristics include all three features (airtight, dense, close), characteristics mentioned in the COVID-19 prevention rules. Therefore, in this study, we will look at ways to reinforce model house customer marketing in line with the untact (non-face-to-face) trend and to avoid the above three features, characteristics in the model house customer marketing process, and show the implementation results to avoid features. Through this, we propose a safe and expandable real estate marketing strategy through the avoidance of the three features of corona 19.

• Journal of the Korea Convergence Society
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• v.13 no.4
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• pp.137-145
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• 2022

The usability evaluation of the remote fluid monitoring device, which was introduced to reduce the work of nurses and increase the efficiency, was performed due to the expansion of the non-face-to-face medical system. Remote fluid monitoring is a fusion of various technologies such as fluid measurement and analysis, error correction technology, and transmission technology. The range of use by users, the information they want to obtain, and the control device, etc. are wide, and the factors that evaluate the product are also diverse. Therefore, it is difficult to improve the product through evaluation. In this study, a quantitative index was developed to help improve the product for commercialization by conducting 20 usability evaluations in three areas of product stability, operability, and satisfaction with the remote sap monitoring system device. It was performed through infrared and load cell-type sap monitoring devices. In terms of stability, there was a difference in installation work such as fixing the pole of the device, and high satisfaction was shown for operability and accuracy. In terms of product satisfaction, the satisfaction of load cell devices was generally high.

• Smart Media Journal
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• v.11 no.8
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• pp.65-72
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• 2022

Due to COVID-19, the importance of non-face-to-face counseling is increasing as the face-to-face counseling method has progressed to non-face-to-face counseling. The advantage of non-face-to-face counseling is that it can be consulted online anytime, anywhere and is safe from COVID-19. However, it is difficult to understand the client's mind because it is difficult to communicate with non-verbal expressions. Therefore, it is important to recognize emotions by accurately analyzing text and voice in order to understand the client's mind well during non-face-to-face counseling. Therefore, in this paper, text data is vectorized using FastText after separating consonants, and voice data is vectorized by extracting features using Log Mel Spectrogram and MFCC respectively. We propose a multi-emotion recognition model that recognizes five emotions using vectorized data using an LSTM model. Multi-emotion recognition is calculated using RMSE. As a result of the experiment, the RMSE of the proposed model was 0.2174, which was the lowest error compared to the model using text and voice data, respectively.

• Review of KIISC
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• v.30 no.3
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• pp.31-36
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• 2020

사용자를 온라인에서 확인하는 인증 기술은 최근 코로나 19로 인한 비대면 서비스들의 확산으로 더욱 중요해졌다. 이러한 인증 기술로는 인터넷/모바일 뱅킹, 전자 정부 등에 널리 사용되고 있는 공인인증서부터 카카오 뱅크 등의 사설인증, 블록체인을 이용한 분산ID 기술, 사용자 편의성을 강조한 간편 인증 등으로 진화하고 있다. 본 기고에서는 여러 가지 형태의 인증 방식에 대한 특징과 동향을 살펴보고 이를 통한 발전 방향을 살펴보고자 한다.

• Journal of Digital Convergence
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• v.21 no.3
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• pp.49-62
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• 2023

Due to social and cultural changes and the growth of aging people living as a single because of aging, lonely deaths are steadily increasing, and each local government has begun to define them as a social problem. The legal basis began to be established. In order to explore policy measures to prevent lonely deaths, this study examined cases of lonely death prevention policies using smart digital information technology (AI, IOT), which is being promoted by Daegu Metropolitan City to promote non-face-to-face policies to prevent lonely deaths. Policies related to lonely deaths are divided into two axes: lonely death prevention projects and post-excavation support projects. In order to operate these businesses efficiently, the provision of non-face-to-face services through artificial intelligence and the Internet of Things is recognized as a new service delivery system, so the importance and necessity of non-face-to-face services is increasing. It is time that multifaceted changes and preparations are needed, such as establishing a system to expand the non-face-to-face industry at the national level. In order to respond to another national disaster situation in the future, the non-face-to-face smart care system is being expanded in various welfare policies such as preventing lonely deaths. It will have to be activated.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.11a
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• pp.41-42
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• 2020

전 세계적으로 코로나 바이러스가 확산되면서 언택트 시대가 되었다. 언택트 시대에서는 대부분의 대면활동이 비대면으로 전환되고 있다. 전 세계적으로 열광중인 케이팝 댄스의 대중화를 위해 우리는 비대면으로 댄스 학습이 가능한 DETR 기반 객체탐지를 사용한 댄스 자세교정 연구를 제안한다. 본 논문에서 제안한 댄스 자세교정은 객체탐지에 DETR을 적용한 방식이다. DETR은 기존 객체탐지 모델에서 앵커박스, 바운딩박스 중복처리를 제거하는 NMS같은 휴리스틱한 방법을 사용하지 않고 트랜스포머를 통해 자동으로 학습하도록 만든 모델이다. DETR로 객체탐지를 한 후 강사와 사용자의 동작유사성을 샴 뉴럴 네트워크를 통해 계산한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.266-267
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• 2021

Recently, the COVID-19 Pandemic is not an infectious disease-level disaster, but a complex disaster, making it difficult to respond with traditional disaster response management methods. As a result, experiencing psychological stress and trauma such as COVID-19 has emerged as a new social problem. In preemptively predicting and effectively responding to these psychological disasters and crises, the necessity and direction of non-face-to-face disaster psychological support using ICT technology in traditional services are discussed.