• 제목/요약/키워드: Learning state

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OECD 다국적기업 가이드라인의 국제적 동향과 시사점: 한국 NCP의 동료평가(Peer Review) 대응방안을 중심으로 (Recent Trends in OECD Guidelines for Multinational Enterprises and their Implications: Focusing on Korea NCP's Countermeasures Strategy for Peer Review)

  • 안건형
    • 무역학회지
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    • 제42권4호
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    • pp.159-184
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    • 2017
  • OECD는 투자위원회를 중심으로 각국 NCP들이 OECD 가이드라인을 효과적으로 이행하기 위한 일환으로 NCP 간 동료평가(Peer Review)를 강조하는 추세이다. 각 NCP로서는 동료평가가 자발적인 성격이라고는 하지만 부정적인 평가를 받게 되는 경우 국제적으로 많은 비난을 받을 소지가 크고 국가 이미지에도 심각한 타격을 입을 가능성이 높다. 더군다나 지난 2017년 3월, 기업책임경영에 관한 작업반(Working Party on Responsible Business Conduct) 회의에서 한국 NCP에 대하여 2019년 동료평가를 시행하기로 결정하였다. 이에 본 논문에서는 NCP 동료학습의 의의와 현황, 최근 시행되었던 덴마크와 벨기에 동료평가 사례들을 검토함으로써 우리 정부가 2019년 동료평가에 어떻게 대비해야 하는지 정책적 제언을 하고 있다.

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패턴 분석을 통한 인공지능 기반 컴퓨팅 사고력 계발을 위한 교재 설계 (Textbook design for developing computational thinking based on pattern analysis)

  • 김소희;정영식
    • 한국정보교육학회:학술대회논문집
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    • 한국정보교육학회 2021년도 학술논문집
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    • pp.253-259
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    • 2021
  • 인공지능이 사회 전반에 퍼진 현대사회에 걸맞게 교육부는 2025년에 유치원과 초·중·고 수업에 AI교육을 도입하고 2021년부터 관련된 학습 자료와 교재를 개발하기로 하였다. 우리나라는 유치원 및 초등학교 저학년 학생들을 위한 국가 주도 AI 교육이 이루어지지 않고 있어 체계적인 교재가 없는 실정이다. 따라서, 본 연구는 정영식·임서은(2020)이 연구한 유치원 SW 교육과정인 GSP 교육과정을 토대로 패턴 분석 기반의 컴퓨팅 사고력 계발을 위한 교재를 설계하여 제시하였다. 교재 설계를 위해 수업 절차를 도입 활동(스토리 도입, 놀이1), 전개 활동(놀이2~놀이4), 정리활동(정리, 생각 더하기)로 순차적으로 분류하였다. 각 활동에 대한 설명과 함께 교재와 교구를 제시함으로써 보충 설명을 제시하였다. 본 연구가 2025년에 이루어질 AI 교육에 도움이 되기 위해서는 실제 적용을 통한 효과를 입증하는 연구가 뒤따라야 한다.

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Integration of Blockchain and Cloud Computing in Telemedicine and Healthcare

  • Asma Albassam;Fatima Almutairi;Nouf Majoun;Reem Althukair;Zahra Alturaiki;Atta Rahman;Dania AlKhulaifi;Maqsood Mahmud
    • International Journal of Computer Science & Network Security
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    • 제23권6호
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    • pp.17-26
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    • 2023
  • Blockchain technology has emerged as one of the most crucial solutions in numerous industries, including healthcare. The combination of blockchain technology and cloud computing results in improving access to high-quality telemedicine and healthcare services. In addition to developments in healthcare, the operational strategy outlined in Vision 2030 is extremely essential to the improvement of the standard of healthcare in Saudi Arabia. The purpose of this survey is to give a thorough analysis of the current state of healthcare technologies that are based on blockchain and cloud computing. We highlight some of the unanswered research questions in this rapidly expanding area and provide some context for them. Furthermore, we demonstrate how blockchain technology can completely alter the medical field and keep health records private; how medical jobs can detect the most critical, dangerous errors with blockchain industries. As it contributes to develop concerns about data manipulation and allows for a new kind of secure data storage pattern to be implemented in healthcare especially in telemedicine fields is discussed diagrammatically.

Artificial Intelligence in Gastric Cancer Imaging With Emphasis on Diagnostic Imaging and Body Morphometry

  • Kyung Won Kim;Jimi Huh ;Bushra Urooj ;Jeongjin Lee ;Jinseok Lee ;In-Seob Lee ;Hyesun Park ;Seongwon Na ;Yousun Ko
    • Journal of Gastric Cancer
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    • 제23권3호
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    • pp.388-399
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    • 2023
  • Gastric cancer remains a significant global health concern, coercing the need for advancements in imaging techniques for ensuring accurate diagnosis and effective treatment planning. Artificial intelligence (AI) has emerged as a potent tool for gastric-cancer imaging, particularly for diagnostic imaging and body morphometry. This review article offers a comprehensive overview of the recent developments and applications of AI in gastric cancer imaging. We investigated the role of AI imaging in gastric cancer diagnosis and staging, showcasing its potential to enhance the accuracy and efficiency of these crucial aspects of patient management. Additionally, we explored the application of AI body morphometry specifically for assessing the clinical impact of gastrectomy. This aspect of AI utilization holds significant promise for understanding postoperative changes and optimizing patient outcomes. Furthermore, we examine the current state of AI techniques for the prognosis of patients with gastric cancer. These prognostic models leverage AI algorithms to predict long-term survival outcomes and assist clinicians in making informed treatment decisions. However, the implementation of AI techniques for gastric cancer imaging has several limitations. As AI continues to evolve, we hope to witness the translation of cutting-edge technologies into routine clinical practice, ultimately improving patient care and outcomes in the fight against gastric cancer.

Multi-Class Multi-Object Tracking in Aerial Images Using Uncertainty Estimation

  • Hyeongchan Ham;Junwon Seo;Junhee Kim;Chungsu Jang
    • 대한원격탐사학회지
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    • 제40권1호
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    • pp.115-122
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    • 2024
  • Multi-object tracking (MOT) is a vital component in understanding the surrounding environments. Previous research has demonstrated that MOT can successfully detect and track surrounding objects. Nonetheless, inaccurate classification of the tracking objects remains a challenge that needs to be solved. When an object approaching from a distance is recognized, not only detection and tracking but also classification to determine the level of risk must be performed. However, considering the erroneous classification results obtained from the detection as the track class can lead to performance degradation problems. In this paper, we discuss the limitations of classification in tracking under the classification uncertainty of the detector. To address this problem, a class update module is proposed, which leverages the class uncertainty estimation of the detector to mitigate the classification error of the tracker. We evaluated our approach on the VisDrone-MOT2021 dataset,which includes multi-class and uncertain far-distance object tracking. We show that our method has low certainty at a distant object, and quickly classifies the class as the object approaches and the level of certainty increases.In this manner, our method outperforms previous approaches across different detectors. In particular, the You Only Look Once (YOLO)v8 detector shows a notable enhancement of 4.33 multi-object tracking accuracy (MOTA) in comparison to the previous state-of-the-art method. This intuitive insight improves MOT to track approaching objects from a distance and quickly classify them.

북스캔을 이용한 도서 손상 단계에 따른 딥 러닝 기반 도서 복구 방법에 관한 연구 (A Study on Book Recovery Method Depending on Book Damage Levels Using Book Scan)

  • 석경호;이주희;박병찬;김석윤;김영모
    • 반도체디스플레이기술학회지
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    • 제22권4호
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    • pp.154-160
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    • 2023
  • Recently, with the activation of eBook services, books are being published simultaneously as physical books and digitized eBooks. Paper books are more expensive than e-books due to printing and distribution costs, so demand for relatively inexpensive e-books is increasing. There are cases where previously published physical books cannot be digitized due to the circumstances of the publisher or author, so there is a movement among individual users to digitize books that have been published for a long time. However, existing research has only studied the advancement of the pre-processing process that can improve text recognition before applying OCR technology, and there are limitations to digitization depending on the condition of the book. Therefore, support for book digitization services depending on the condition of the physical book is needed. need. In this paper, we propose a method to support digitalization services according to the status of physical books held by book owners. Create images by scanning books and extract text information from the images through OCR. We propose a method to recover text that cannot be extracted depending on the state of the book using BERT, a natural language processing deep learning model. As a result, it was confirmed that the recovery method using BERT is superior when compared to RNN, which is widely used in recommendation technology.

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Convolutional Neural Network Model Using Data Augmentation for Emotion AI-based Recommendation Systems

  • Ho-yeon Park;Kyoung-jae Kim
    • 한국컴퓨터정보학회논문지
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    • 제28권12호
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    • pp.57-66
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    • 2023
  • 본 연구에서는 딥러닝 기법과 정서적 AI를 적용하여 사용자의 감정 상태를 추정하고 이를 추천 과정에 반영할 수 있는 추천 시스템에 대한 새로운 연구 프레임워크를 제안한다. 이를 위해 분노, 혐오, 공포, 행복, 슬픔, 놀람, 중립의 7가지 감정을 각각 분류하는 감정분류모델을 구축하고, 이 결과를 추천 과정에 반영할 수 있는 모형을 제안한다. 그러나 일반적인 감정 분류 데이터에서는 각 레이블 간 분포 비율의 차이가 크기 때문에 일반화된 분류 결과를 기대하기 어려울 수 있다. 본 연구에서는 감정 이미지 데이터에서 혐오감 등의 감정 개수가 부족한 경우가 많으므로 데이터 증강을 이용한다. 마지막으로, 이미지 증강을 통해 데이터 기반의 감정 예측 모델을 추천시스템에 반영하는 방법을 제안한다.

U-Net을 이용한 무인항공기 비정상 비행 탐지 기법 연구 (Abnormal Flight Detection Technique of UAV based on U-Net)

  • 송명재;최은주;김병수;문용호
    • 항공우주시스템공학회지
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    • 제18권3호
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    • pp.41-47
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    • 2024
  • 최근에 무인항공기의 실용화 및 사업화가 추진됨에 따라 무인항공기의 안전성 확보에 관한 관심이 증가하고 있다. 무인항공기의 사고는 재산 및 인명 피해를 발생시키기 때문에 사고를 예방할 수 있는 기술의 개발은 중요하다. 이러한 이유로 AutoEncoder 모델을 이용한 비정상 비행 상태 탐지 기법이 개발되었다. 그러나 기존 탐지 기법은 성능과 실시간 처리 측면에서 한계를 지닌다. 본 논문에서는 U-Net 기반 비정상 비행 탐지 기법을 제안한다. 제안하는 기법에서는 U-Net 모델에서 얻어지는 재구성 오차에 대한 마할라노비스 거리 증가량에 기반하여 비정상 비행이 탐지된다. 모의실험을 통해 제안 탐지 기법이 기존 탐지 기법에 비해 탐지 성능이 우수하며 온보드 환경에서 실시간으로 구동될 수 있음을 알 수 있다.

Optimizing Innovative Tools for Dissemination of Information in Nigerian Academic Libraries During Post-COVID Era

  • Halimah Odunayo AMUDA;Ayotola Olubunmi ONANUGA
    • International Journal of Knowledge Content Development & Technology
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    • 제14권1호
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    • pp.19-31
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    • 2024
  • In order to support the mission of the institution in which they are attached, academic libraries provide services in both manual and digital but COVID -19 pandemic that spanned between March and September, 2020 has changed the scenario. With particular reference to Nigeria, about 249,606 cases were confirmed and in order to curb the scourge of this deadly disease, physical academic activities were prevented by Nigeria Centre for Disease Control (NCDC). With this development, innovative tools became indispensable tools for successful delivery of library services in Nigerian academic libraries. Whether or not these tools are still in use for reformation of library service during post- Covid era remains unclear, hence, need for this study. This study examined librarians' use of innovative tools for information dissemination in Nigerian academic libraries during the post-Covid era using a descriptive survey design. Data were obtained both in quantitative and qualitative formats from one hundred and forty-four librarians as respondents. A total enumeration sampling technique was adopted because the population was minimal. Findings of the study revealed that innovative tools such as videoconferencing, WhatsApp, teleconferencing, Facebook, LinkedIn, and web-based learning applications are still in use by librarians for the dissemination of information during the post-Covid era. These tools are useful and beneficial to librarians during the post-COVID era, as they facilitate easy participation and engagement of library users in various discussions. Inadequate funding and lack of advanced technology skills were also identified as major impediments to the successful use of innovative tools for information dissemination. As a result, it was suggested that academic libraries throughout Nigeria prioritize staff training on the necessary digital skills needed to cope in this advanced technology era.

Segmentation of Mammography Breast Images using Automatic Segmen Adversarial Network with Unet Neural Networks

  • Suriya Priyadharsini.M;J.G.R Sathiaseelan
    • International Journal of Computer Science & Network Security
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    • 제23권12호
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    • pp.151-160
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    • 2023
  • Breast cancer is the most dangerous and deadly form of cancer. Initial detection of breast cancer can significantly improve treatment effectiveness. The second most common cancer among Indian women in rural areas. Early detection of symptoms and signs is the most important technique to effectively treat breast cancer, as it enhances the odds of receiving an earlier, more specialist care. As a result, it has the possible to significantly improve survival odds by delaying or entirely eliminating cancer. Mammography is a high-resolution radiography technique that is an important factor in avoiding and diagnosing cancer at an early stage. Automatic segmentation of the breast part using Mammography pictures can help reduce the area available for cancer search while also saving time and effort compared to manual segmentation. Autoencoder-like convolutional and deconvolutional neural networks (CN-DCNN) were utilised in previous studies to automatically segment the breast area in Mammography pictures. We present Automatic SegmenAN, a unique end-to-end adversarial neural network for the job of medical image segmentation, in this paper. Because image segmentation necessitates extensive, pixel-level labelling, a standard GAN's discriminator's single scalar real/fake output may be inefficient in providing steady and appropriate gradient feedback to the networks. Instead of utilising a fully convolutional neural network as the segmentor, we suggested a new adversarial critic network with a multi-scale L1 loss function to force the critic and segmentor to learn both global and local attributes that collect long- and short-range spatial relations among pixels. We demonstrate that an Automatic SegmenAN perspective is more up to date and reliable for segmentation tasks than the state-of-the-art U-net segmentation technique.