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Improved Anatomical Landmark Detection Using Attention Modules and Geometric Data Augmentation in X-ray Images (어텐션 모듈과 기하학적 데이터 증강을 통한 X-ray 영상 내 해부학적 랜드마크 검출 성능 향상)

  • Lee, Hyo-Jeong;Ma, Se-Rie;Choi, Jang-Hwan
    • Journal of the Korea Computer Graphics Society
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    • v.28 no.3
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    • pp.55-65
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    • 2022
  • Recently, deep learning-based automated systems for identifying and detecting landmarks have been proposed. In order to train such a deep learning-based model without overfitting, a large amount of image and labeling data is required. Conventionally, an experienced reader manually identifies and labels landmarks in a patient's image. However, such measurement is not only expensive, but also has poor reproducibility, so the need for an automated labeling method has been raised. In addition, in the X-ray image, since various human tissues on the path through which the photons pass are displayed, it is difficult to identify the landmark compared to a general natural image or a 3D image modality image. In this study, we propose a geometric data augmentation technique that enables the generation of a large amount of labeling data in X-ray images. In addition, the optimal attention mechanism for landmark detection was presented through the implementation and application of various attention techniques to improve the detection performance of 16 major landmarks in the skull. Finally, among the major cranial landmarks, markers that ensure stable detection are derived, and these markers are expected to have high clinical application potential.

The Relationship between Exercise Emotion, Leisure Satisfaction and Psychological Well-being of Participants in Life Sports in the COVID 19 (코로나 19상황에서 생활체육 참여자들의 운동정서, 여가만족, 심리적 웰빙의 관계)

  • Jung, Joo-Hyug;Kim, Keum-Ja;Yoo, Jung-In
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.6
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    • pp.81-92
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    • 2021
  • The purpose of this study is to provide basic information to help improve the quality of life by identifying the relationship between exercise emotion, leisure satisfaction, and psychological well-being for subjects who are participating in physical sports on a limited condition in a pandemic situation caused by COVID-19. To achieve the purpose of this study, Statistical analysis was performed accordingly, after data were collected through the significance sampling method using the sports emotion, leisure satisfaction, and psychological well-being scales from members who participate in physical sports at a sports facility located in Gyeonggi-do. As a result of the analysis, first, it was found that there were no significant differences in exercise emotion, leisure satisfaction, and psychological well-being by the gender of the participants. Second, there was a significant difference in exercise emotion, leisure satisfaction, and psychological well-being by the careers of them. Third, there was a significant positive correlation between exercise emotion, leisure satisfaction, and psychological well-being. Fourth, exercise emotion affected psychological well-being, having a positive effect on leisure satisfaction. Finally, exercise emotion had a positive effect on psychological happiness. In conclusion, the exercise emotion had a positive and close correlation between leisure satisfaction and psychological well-being of the participants in Life Sports.

Effects of Vegetation on Pollutants and Carbon Absorption Capacity in LID Facilities (LID시설에서의 오염물질 및 탄소흡수능에 식생이 미치는 영향)

  • Hong, Jin;Kim, Yuhyeon;Gil, Kyungik
    • Journal of Wetlands Research
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    • v.24 no.2
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    • pp.115-122
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    • 2022
  • As the impermeable area of soil increases due to urbanization, the water circulation system of the city is deteriorating. The existing guidelines for low impact development (LID) facilities installed to solve these water problems or in previous studies, engineering aspects are more prominent than landscaping aspects. This study attempted to present an engineering and landscaping model for reducing pollutants by identifying the effects of vegetation on rainfall outflows and pollutant reduction in bioretention and the economic aspects of planting. Based on the results of artificial rainfall monitoring at Jeonju Seogok Park and the literature on vegetation rainfall runoff and pollutant reduction performance, the best vegetation for reducing pollution compared to cost was Lythrum salicaria L and Salix gracilistyla Miq. was the best vegetation for carbon storage. If you insist to design plants with only these two plantation, there is no choice but to take risks such as biodiversity. Herbaceous plants such as Lythrum salicaria L can be replaced by death of the plants or pests if considered planting various plants. The initial planting cost could expensive, but it is also necessary to mix and plant Salix gracilistyla Miq, which are woody plants that are advantageous in terms of maintenance, according to the surrounding environment and conditions. Based on the conclusions drawn in this study, it can be a reference material when considering the reduction of pollution by species and carbon storage of vegetation in LID facilities.

The Main Methodological Positions of Educational Institutions in the System of Educational Work of the Modern Information Space

  • Shumiatska, Oleksandra;Palamar, Nataliia;Bilyk, Ruslana;Yakymenko, Svitlana;Yakovenko, Serhii;Tsybulko, Liudmyla;Bida, Olena
    • International Journal of Computer Science & Network Security
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    • v.22 no.11
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    • pp.272-278
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    • 2022
  • The article proves the idea that the protection and development of Ukraine as an independent, sovereign state requires the education of a patriot citizen who is able to live and work in a democracy, ensure the unity of Ukraine, feel constant responsibility for himself, his people, the country, and strive to make a real contribution to reform processes, especially in unstable, wartime. The main goal of educational institutions in the system of educational work of the modern information space is revealed. The tasks of patriotic education of the individual are presented. The content of patriotic education at the wartime stage and the main characteristics of the content of patriotism are substantiated. The main methodological positions that are taken into account in the construction of the structure and dynamics of the formation of civil responsibility of the individual are highlighted. The structure of civic responsibility as an integral system of the modern information space is drawn, which includes three subsystems that characterize the natural, social and systemic qualities of citizenship, interconnected hierarchically and synergistically. The components of the structural part of the model of civil culture of the individual in the modern information space are analyzed.Modern modernization of the education system in the modern information space, which has led to the emergence of a new type of Educational Institutions, requires the search for new pedagogical technologies that can ensure the formation of a patriotic citizen with an active civic position, which involves not only mastering students' knowledge about the rights and obligations of citizens, convincing them of the expediency of democratic transformations of society, the formation of high moral and strong-willed, patriotic qualities and feelings, but also identifying motivated civic actions, actions that are necessary during martial law in Ukraine.

Design of WebZine for Marketing of the Presidential Archives: Based on 'On-Gi', a Newsletter of the Presidential Archives (대통령기록관 마케팅을 위한 웹진(WebZine)의 설계 제안 - 대통령기록관 '온기(On-記)'를 기반으로 -)

  • Jang, Hyo-Jeong;Lee, Yong-Jae;Kim, Na-Kyung;Jeong, Jin-Gyeong
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.33 no.3
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    • pp.267-293
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    • 2022
  • A webzine issued by a public institution not only plays a role in communication between members of the institution and its users, but is itself a meaningful record. In addition, as one of the management techniques of the archives, there is a growing awareness that active marketing is needed to promote the service and allow potential users to visit the archives. Therefore, efforts should be made to increase user satisfaction by identifying user needs, composing content reflecting them, and selecting user-centered interfaces appropriately. The purpose of this study is to design 'On-Gi', a newsletter of the Presidential Archives, as a user-participating smart platform in a smart device environment. As a research method, we first looked at the current status of webzine publication by relevant domestic institutions. Next, we compared and analyzed the issue of 'On-Gi' provided by the Presidential Archives and major contents. Based on this, a design model of the webzine for the marketing of the Presidential Archives was proposed. This can be used as a key marketing strategy for the Presidential Archives in the new user environment of technological innovation of smart devices.

A study on the selection of the target scope for destruction of personal credit information of customers whose financial transaction effect has ended (금융거래 효과가 종료된 고객의 개인신용정보 파기 대상 범위 선정에 관한 연구)

  • Baek, Song-Yi;Lim, Young-Bin;Lee, Chang-Gil;Chun, Sam-Hyun
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.22 no.3
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    • pp.163-169
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    • 2022
  • According to the Credit Information Act, in order to protect customer information by relationship of credit information subjects, it is destroyed and stored separately in two stages according to the period after the financial transaction effect is over. However, there is a limitation in that the destruction of personal credit information of customers whose financial transaction effect has expired cannot be collectively destroyed when the transaction has been terminated, depending on the nature of the financial product and transaction. To this end, the IT person in charge is developing a computerized program according to the target and order of destruction by investigating the business relationship by transaction type in advance. In this process, if the identification of the upper relation between tables is unclear, a compliance issue arises in which personal credit information cannot be destroyed or even information that should not be destroyed because it depends on the subjective judgment of the IT person in charge. Therefore, in this paper, we propose a model and algorithm for identifying the referenced table based on SQL executed in the computer program, analyzing the upper relation between tables with the primary key information of the table, and visualizing and objectively selecting the range to be destroyed. presented and implemented.

Development and Evaluation of Safe Route Service of Electric Personal Assistive Mobility Devices for the Mobility Impaired People (교통약자를 위한 전동 이동 보조기기 안전 경로 서비스의 개발과 평가)

  • Je-Seung WOO;Sun-Gi HONG;Sang-Kyoung YOO;Hoe Kyoung KIM
    • Journal of the Korean Association of Geographic Information Studies
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    • v.26 no.3
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    • pp.85-96
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    • 2023
  • This study developed and evaluated a safe route guidance service for electric personal assistive mobility device used mainly by the mobility impaired people to improve their mobility. Thirteen underlying factors affecting the mobility of electric personal assistive mobility device have been derived through a survey with the mobility impaired people and employees in related organizations in Busan Metropolitan City. After assigning safety scores to individual factors and identifying the relevant factors along routes of interest with an object detection AI model, the safe route for electric personal assistive mobility device was provided through an optimal path-finding algorithm. As a result of comparing the general route of T-map and the recommended route of this study for the identical routes, the latter had relatively fewer obstacles and the gentler slope than the former, implicating that the recommended route is safer than the general one. As future works, it is necessary to enhance the function of a route guidance service based on the real-time location of users and to conduct spot investigations to evaluate and verify its social acceptability.

A Comparative Study on Discrimination Issues in Large Language Models (거대언어모델의 차별문제 비교 연구)

  • Wei Li;Kyunghwa Hwang;Jiae Choi;Ohbyung Kwon
    • Journal of Intelligence and Information Systems
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    • v.29 no.3
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    • pp.125-144
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    • 2023
  • Recently, the use of Large Language Models (LLMs) such as ChatGPT has been increasing in various fields such as interactive commerce and mobile financial services. However, LMMs, which are mainly created by learning existing documents, can also learn various human biases inherent in documents. Nevertheless, there have been few comparative studies on the aspects of bias and discrimination in LLMs. The purpose of this study is to examine the existence and extent of nine types of discrimination (Age, Disability status, Gender identity, Nationality, Physical appearance, Race ethnicity, Religion, Socio-economic status, Sexual orientation) in LLMs and suggest ways to improve them. For this purpose, we utilized BBQ (Bias Benchmark for QA), a tool for identifying discrimination, to compare three large-scale language models including ChatGPT, GPT-3, and Bing Chat. As a result of the evaluation, a large number of discriminatory responses were observed in the mega-language models, and the patterns differed depending on the mega-language model. In particular, problems were exposed in elder discrimination and disability discrimination, which are not traditional AI ethics issues such as sexism, racism, and economic inequality, and a new perspective on AI ethics was found. Based on the results of the comparison, this paper describes how to improve and develop large-scale language models in the future.

Relationship between Spatial Inclusivity and Social Participation According to Degree of Disability (장애 정도에 따른 공간적 포용성과 사회참여의 관계)

  • Kim, Si Hwa;Park, In Kwon
    • Journal of the Korean Regional Science Association
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    • v.39 no.3
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    • pp.65-83
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    • 2023
  • The purpose of this study is to conceptually define "spatial inclusivity" and empirically examine the impact of disability severity and spatial inclusivity on social participation among individuals experiencing physical discomfort. The social and spatial environment of the residential area is crucial for individuals with disabilities who face limited activity range and complex barriers due to physical constraints. In this study, spatial inclusivity from the perspective of people with disabilities is defined as establishment of equal relationships with non-disabled individuals within the local community, as well as the availability of basic facilities and services in a safe urban space that allows for access and utilization. This concept consists of three dimensions: individual networks, social environment, and physical environment. The physical environment encompasses safety levels, natural environment, living environment, public transportation conditions, medical services in residential areas. We used the 2019 Community Health Survey to examine the relationship between disability severity, spatial inclusivity, and social participation using a two level regression model. The findings are as follows: Firstly, personal relationships at the individual level and the physical environment at the local level have a positive impact on social participation. Secondly, when identifying dividing the physical environment into five sub-factors, no significant influence of individual factors is found. Thirdly, trustworthy and friendly social environment at the local level has a negative impact on social participation. These results provide empirical evidence that spatial inclusivity has an effect on the social participation of individuals with disabilities and suggest implications for urban planning to create and enhance conditions for the social participation of individuals with disabilities.

A Study on the Development and Validation of Digital Literacy Measurement for Middle School Students

  • Hee Chul Kim;Ji Young Lim;Iljun Park;Myoeun Kim
    • Journal of the Korea Society of Computer and Information
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    • v.28 no.9
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    • pp.177-188
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    • 2023
  • The purpose of this study is to develop and validate a scale for measuring digital literacy by identifying the factors consisting of digital literacy and extracting items for each factor. Preliminary items for the Delphi study were developed through the analysis of previous literature and the deliberation of the research team. As a result of two rounds of the expert Delphi study, 65 items were selected for the main survey. The validation of the items was carried out in the process of exploratory and confirmatory factor analyses, reliability test, and criterion validity test using the data collected in the main survey. As a result, a 4-factor structure composed of 31 questions(factor 1: digital technology & data literacy- 9 questions, factor 2: digital content & media literacy- 8 questions, factor 3: digital communication & community literacy- 9 questions, factor 4: digital wellness literacy - 5 questions) was confirmed. Also, the goodness of fit indices of the model were found to be good and the result of reliability test revealed the scale had a very appropriate level of Cronbach's alpha(α=.956). In addition, a statistically significantly positive correlations(p<.001) were found between digital literacy and internet self-efficacy and between digital literacy and self-directed learning ability, which were predicted in the existing evidence, therefore the criterion validity of the developed scale was secured. Finally, practical and academic implications of the study are provided and future study and limitations of the study are discussed.