• Title/Summary/Keyword: digital communication

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Weighted Filter based on Standard Deviation for Impulse Noise Removal (임펄스 잡음 제거를 위한 표준편차 기반의 가중치 필터)

  • Cheon, Bong-Won;Kim, Woo-Young;Sagong, Byung-Il;Kim, Nam-Ho
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2021.05a
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    • pp.213-215
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    • 2021
  • With the development of IoT technology, various technologies such as artificial intelligence and automation are being grafted into industrial sites, and accordingly, the importance of data processing is increasing. In particular, a system based on a digital image may cause a malfunction due to noise in the image due to a sensor defect or a communication environment problem. Therefore, research on image processing has been continued as a pre-processing process, and an effective noise reduction technique is required depending on the type of noise and the characteristics of the image. In this paper, we propose a modified spatial weight filter to protect edge components in the impulse noise reduction process. The proposed algorithm divides the filtering mask into four regions and calculates the standard deviation of each region. The final output was filtered by applying a spatial weight to the region with the lowest standard deviation value. Simulation was conducted to evaluate the performance of the proposed algorithm, and it showed superior impulse noise reduction performance compared to the existing method.

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A study on the Development of a Hybrid Library Model based on Information Commons (Information Commons기반 하이브리드(Hybrid)도서관 모형 개발에 관한 연구)

  • Chung, Jae-Young
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.20 no.2
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    • pp.59-73
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    • 2009
  • The library could get infinite possibilities of the space, if people had recognized that the library was not only the space for the reading and collecting of the books but also a special space for accomplishment of the investigation, learning, communication, and culture. Also, it can be desirable way for implementing the hybrid library. It means that combine with the traditional library which is the most important thing is a real space and the digital library, in contrast, the which is that the most important thing is the cyberspace. The purpose of this study is to develop a practical model for hybrid library based on the concept of information commons which is cooperation of the space, information technology and information services. This study intends to figure out the core elements involved in operative aspect of hybrid library through comparative analysis of domestic and foreign cases applied Information commons concepts to the library.

Smart Healthcare: Enabling AI, Blockchain, VR/AR and Digital Solutions for Future Hospitals (스마트 헬스케어: 미래 병원을 위한 AI, 블록체인, VR/AR 및 디지털 솔루션 구현)

  • Begum, Khadija;Rashid, Md Mamunur;Armand, Tagne Poupi Theodore;Kim, Hee-Cheol
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2022.05a
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    • pp.406-409
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    • 2022
  • In recent years, the developments in technologies, such as AI systems, Blockchain, VR/AR, 3D printing, robotics, and nanotechnology, are reshaping the future of healthcare right before our eyes. And also, healthcare has seen a paradigm shift towards prevention-oriented medicine, with a focus on consumers requirements. The spread of infectious diseases such as Covid-19 have altered the definition of healthcare and treatment facilities, necessitating immediate action to redesign hospitals' physical environments, adapt communication models to address social distancing requirements, implement virtual health solutions, and establish new clinical protocols. Hospitals, which have traditionally served as the hub of healthcare systems, are pursuing or being forced to reestablish themselves against this landscape. Rather than only treating ailments, future healthcare is predicted to focus on wellness and prevention. In personalized care, long-term prevention strategies, remote monitoring, early diagnosis, and detection are critical. Given the growing interest in smart healthcare defined by these modern technologies, this study looked into the definitions and service kinds of smart healthcare. The background and technical aspects of smart hospitals were also explored through a literature review.

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A Study on the Current Status and Improvement Direction of Korean e-Navigation Service on Ship's Collision (우리나라 선박 충돌예방 지원서비스의 현황 및 발전방향에 대한 연구)

  • Kwang-Hyun Lim;Deuk-Jae Cho
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2021.11a
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    • pp.3-4
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    • 2021
  • Korea government has developed Korean e-Navigation service to assist ship's collision avoidance, and is providing it since Jan. 2021 to korean vessels to reduce marine accidents caused by human error which is regarded as main reason of marine accidents. It is a huge achievement itself because it is a real-time maritime safety information service based on digital communication, but still has room for improvement to provide customized information for each vessel, such as considering ship's characteristics. This research analyzes current status and requirement of collision avoidance assistance service. Lastly, it suggests direction of improvement of service such as using data science, artificial intelligence(AI).

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A Study on the Intellectual Structure of Domestic Library and Information Science Based on Co-Citation (동시인용 분석 기반 국내 문헌정보학 분야의 지적구조에 관한 연구)

  • MinHui Lee;Seung-Jin Kwak
    • Journal of the Korean Society for Library and Information Science
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    • v.57 no.4
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    • pp.311-331
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    • 2023
  • This study attempted to explore the characteristics of knowledge communication and investigate important research topics and key authors by analyzing major academic papers in the field of LIS in Korea for five years from 2018 to 2022. The research method collected and analyzed papers published for five years in four key journals in the field of domestic Library and Information Science from the Korean Citation Index (KCI) database. The paper was selected to extract the author data of the paper and the data of the reference, and network visualization was performed by conducting literature co-citation analysis and author co-citation analysis using Netminer. As a result of the analysis, it was possible to derive a pair of co-citations between authors, and it was confirmed that it is important to include multiple authors in the intellectual structure analysis in the academic field through co-citation frequency analysis among researchers. The literature confirmed the correlation between the topics of the paper, and it was found that research related to Library and Information Science was centered on the topics of library, digital, user, service, and data.

Development of a Framework for Improvement of Sensor Data Quality from Weather Buoys (해양기상부표의 센서 데이터 품질 향상을 위한 프레임워크 개발)

  • Ju-Yong Lee;Jae-Young Lee;Jiwoo Lee;Sangmun Shin;Jun-hyuk Jang;Jun-Hee Han
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.46 no.3
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    • pp.186-197
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    • 2023
  • In this study, we focus on the improvement of data quality transmitted from a weather buoy that guides a route of ships. The buoy has an Internet-of-Thing (IoT) including sensors to collect meteorological data and the buoy's status, and it also has a wireless communication device to send them to the central database in a ground control center and ships nearby. The time interval of data collected by the sensor is irregular, and fault data is often detected. Therefore, this study provides a framework to improve data quality using machine learning models. The normal data pattern is trained by machine learning models, and the trained models detect the fault data from the collected data set of the sensor and adjust them. For determining fault data, interquartile range (IQR) removes the value outside the outlier, and an NGBoost algorithm removes the data above the upper bound and below the lower bound. The removed data is interpolated using NGBoost or long-short term memory (LSTM) algorithm. The performance of the suggested process is evaluated by actual weather buoy data from Korea to improve the quality of 'AIR_TEMPERATURE' data by using other data from the same buoy. The performance of our proposed framework has been validated through computational experiments based on real-world data, confirming its suitability for practical applications in real-world scenarios.

Analysis of Effects of Small School Space Innovation (소규모 학교공간혁신 효과성 분석)

  • Kwon, Soon-Chul;Lee, Yong-Hwan
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.22 no.4
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    • pp.1-8
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    • 2023
  • The downsizing of schools is accelerating due to a rapid decline in the school-age population, and as the crisis over regional and school disappearance increases, the need for smaller schools to respond to future educational needs is increasing. Through flexible curricula and digital/artificial intelligence-based classroom teaching improvements, students' satisfaction with school life, student creativity and character development, improved academic achievement, and strengthened cooperative communication capabilities will be observed, and teachers' teaching and learning methods will change. Educational effects such as these are important, and transforming school facilities into future-oriented spaces, including school space innovation, is required to accomplish them. This study examined the future of education systems in small schools, focusing on analyzing the educational effects and awareness of the sustainability of spatial innovation, in terms of school space changes, school education correlation, and smart environment, to develop innovation projects in small schools. A desirable direction for implementation is presented.

Exploring Enhancements of Data Industry Competitiveness in the Agricultural Sector (농업 부문 데이터 산업 경쟁력 제고 방안)

  • Choi, Ha-Yeon;Im, Ye-Rin;Kang, Seung-Yong;Kang, Seung-Yong;Yoo, Do-il
    • Journal of Korean Society of Rural Planning
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    • v.29 no.4
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    • pp.137-152
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    • 2023
  • Data is indispensable for digital transformation of agriculture with the development of innovative information and communication technology (ICT). In order to devise and prioritize strategies for enhancing data competitiveness in the agricultural sector, we employed an Analytic Hierarchy Process (AHP) analysis. Drawing from existing research on data competitiveness indicators, we developed a three-tier decision-making structure reflecting unique characteristics of the agricultural sector such as farmers'awareness of the data industry or awareness of agriculture among data workers. AHP survey was administered to experts from both agricultural and non-agricultural sectors with a high understanding of data. The overall composite importance, derived from the respondents, was rated in the following order: 'Employment Support', 'Data Standardization', 'R&D Support', 'Start-up Ecosystem Support', 'Relaxation of Regulations', 'Legislation', and 'Data Analytics and Utilization Technology'. In the case of experts in the agricultural sector, 'Employment Support' was ranked as the top priorities, and 'Legislation', 'Undergrad and Grad Education', and 'In-house Training' were also regarded as highly important. On the other hand, experts in the non-agricultural sector perceived 'Data Standardization' and 'Relaxation of Regulations' as the top two priorities, and 'Data Center' and 'Open Public Data' were also highly rated.

Digital News Innovation and Online Readership: A Study of Subscribers Paying for Online News (언론사의 디지털 혁신과 구독자 되찾기: 온라인 뉴스의 유료이용 경험에 관한 연구)

  • Sun Ho Jeong
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.6
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    • pp.1111-1117
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    • 2023
  • Recently, South Korean newspapers began trying to charge for online news. This study attempts to shed light on the factors that influence payment for online news by analyzing Korea Press Foundation's 2022 Media Audience Survey (N = 58,936). The results of this study showed a steady increase in past payment and paying intent for online news since 2020. Predictors of past payment for online news included gender, age, and education, and interest in political and social issues. News use through specific media (i.e., newspapers, magazines, portals, messengers, social media, video sites, and podcasts), as well as mobile applications and e-mail newsletters, were found to contribute to paid subscriptions. Based on the findings of the study, news organizations should prepare to offer differentiated news content through their own news platforms and establish concrete plans to build trust in news.

A Case Study of a Play-oriented Block Coding Class (놀이 중심의 블록 코딩 수업 사례 연구)

  • Jung-Yi Kim
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.5
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    • pp.619-624
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    • 2023
  • As the importance of digital competency education is highlighted, this study is a case study on block coding classes for elementary school students during vacation for the purpose of bridging the information education gap among students. The purpose of this study is to design and operate a play-centered block coding class program and find out if it is effective in improving students' interest. As a result of completing the teaching plan through the second consultation and revision, running the class, and analyzing the change in learning interest of the students through the t-test, the play-oriented block coding class designed in this study was effective in improving students' interest. In addition, it was possible to discover interesting elements such as student-led learning process and immersion through realistic play activities, friendship, collaboration, and communication through group activities. This study is significant in suggesting a plan to increase learning interest for students who are new to coding.