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Jeonghyun Joo(주정현),Heeyoul Choi(최희열) 한국정보과학회 2021 정보과학회 컴퓨팅의 실제 논문지 Vol.27 No.4
딥러닝 프레임워크는 컴퓨터 비전 많은 분야에서 괄목할 만한 성과를 보여주고 있다. 비디오 행동 인식 분야 역시 딥러닝 모델을 적용하기 위한 많은 연구들이 수행되었다. 한 선행연구는 2차원 CNN을 이용해 공간적 피쳐를 학습하고 이를 RNN에 입력으로 전달해 이용해 공간적 피쳐 사이의 시간적 상호 관계를 학습하는 모델 구조를 제안했다. 본 논문에서는 RNN 대신 1차원 CNN을 이용해 시간적 상호관계를 학습하도록 선행 연구의 모델 구조를 개선하는 연구를 수행한다. 이러한 구조 변경을 통해 RNN의 순차적 연산 과정을 제거해 향상된 GPU 활용도를 기대할 수 있다. 본 논문은 수정된 모델이 정확도를 비슷하게 유지하면서 연산 시간이 줄어드는 것을 보여주는 실험 결과를 제시함으로써 이러한 주장을 뒷받침한다. The deep learning framework has shown remarkable results on numerous computer vision tasks. Many studies have been performed for video action recognition tasks to apply deep learning models to the task. One of the previous works suggested the model architecture, where spatial features are learned from 2D Convolutional Neural Networks (CNNs) and then passed to Recurrent Neural Networks (RNNs) to learn about temporal dependency among them. In this paper, we study the improved model architecture where the temporal relationship of spatial features is processed with 1D CNN instead of RNN. From this modification, we can expect better utilization of GPU by removing sequential operations of RNN. We support the argument based on the experiment results that show that it leads to the reduction in computation time and maintains a similar classification accuracy.
국내 요양병원에서 시행되는 암치료 관련 비급여 진료항목에 대한 고찰
주정현 ( Jeonghyun Joo ),임철성 ( Chulsung Lim ),이상헌 ( Sanghun Lee ) 대구한의대학교 제한동의학술원 2019 東西醫學 Vol.44 No.1
Backgrounds : Cancer patients are increasing in South Korea as well as in the world. The number of Geriatric hospitals for treatment and rehabilitation after surgery, chemotherapy, and radiotherapy in cancer patients at tertiary hospitals is gradually increasing. However, there have been no studies on uninsured Complementary and Alternative Medicine (CAM) that are currently administered at Geriatric hospitals. Methods : After examining the total number of nationwide hospitals registered in the national Health Insurance Review and Assessment service (HIRA), we surveyed the web homepages of all Geriatric hospitals in order to find out what kind of and how many CAM therapies were offered for cancer patients. Results : As of July 2017, the total number of nursing hospitals registered in HIRA was 1521. By web homepage survey of geriatric hospitals, 86 hospitals offered various CAM treatments for cancer patients. The uninsured treatments in CAM are composed of local hyperthermia therapy, mistletoe, high-dose vitamin C therapy, thymosin-alpha 1, selenium, and vitamin D therapy by frequency. Conclusions : The CAM therapies in South Korea are popularly integrated with the conventional treatments such as surgery, chemotherapy, and radiation at many geriatric hospitals. The limitations of CAM therapies including adverse effects should be properly informed for cancer patients.