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이재륜,장중혁 사단법인 인문사회과학기술융합학회 2019 예술인문사회융합멀티미디어논문지 Vol.9 No.12
In recent fashion shopping, Internet shopping systems in various devices are widely used. This paper proposes using the user-owned clothing information in addition to factors such as product appearance and price to enhance the performance of the product recommendation system, which is an essential element of modern internet fashion shopping. This requires obtaining clothing information that users have in advance, suggests customized fashion coordination application as a way to effectively solve this task. An application proposed in this paper provides a services that presents a list of recommended coordination items based on clothing items registered by the user and provides a today's recommended coordination services based on past clothing records and weather conditions today and provides a coordination calendar service. Finally, the service provided by the applications in this paper is expected to be effective in various fashion areas in the future. 오늘날 패션 쇼핑에 있어서 다양한 기기를 기반으로 하는 인터넷 쇼핑 시스템이 널리 활용되고 있다. 본 논문에서는 인터넷 패션 쇼핑의 필수요소인 상품 추천 시스템의 성능 향상을 위해서 상품 외형이나 가격 등의 요인에 추가적으로 사용자가 보유하고 있는 의류 정보를 사용할 것을 제안한다. 이를 위해서는 사용자가 보유하고 있는 의류 정보를 사전에 얻는 작업이 필요한데 해당 작업을 효과적으로 수행하기 위한 방법으로 개인 맞춤형 패션 코디네이션 애플리케이션을 제시한다. 본 논문의 개인 맞춤형 패션 코디네이션 애플리케이션은 사용자가 등록한 의류 아이템을 기반으로 하여 추천 코디 아이템 목록을 제시해주는 서비스와 과거 입었던 의류 기록과 금일 날씨를 기반으로 오늘의 추천 코디네이션 서비스, 과거의 코디네이션 기록을 시각적으로 나타내주는 코디 달력 서비스를 제공한다. 마지막으로 본 논문의 애플리케이션이 제공하는 서비스를 바탕으로 향후 여러 패션 분야에 효과적으로 사용될 수 있을 것으로 예상된다.
COVID-19 백신 접종 후 월경 이상 사례 관련 온라인 건강상담 내용의 분석
이재륜(Jae Ryoun Lee),전수민(Soo Min Jeon),김혜원(Hye-Won Kim),안정연(Jeong-Yeon An),정솔미(Sol-Mi Jeong),권진원(Jin-Won Kwon) 대한약학회 2023 약학회지 Vol.67 No.5
Recent developments in big data technologies have highlighted the potential of enhancing the role of pharmacovigilance. This study aims to assess the potential of utilizing social media for pharmacovigilance using online health counseling on abnormal menstruation after receiving vaccination for coronavirus disease. We crawled relevant posts regarding vaccine adverse events published on Naver Jisik-iN from February 2021 to August 2022 using keywords “vaccine” and “menstruation.” After preprocessing all collected posts, selected posts were classified based on vaccination information and type of adverse events. A descriptive statistical analysis was performed to analyze the characteristics and timing of the selected posts and their association with vaccination. Following preprocessing, 4,154 posts were chosen, and the highest number of posts was generated in October 2021. Among them, 87.75% (n=3,645) were posted after vaccination. Of the 3,645 posts, certain, probable, and possible associations were identified in 63.40, 4.83, and 31.74% posts. The most frequently reported symptom was change in the menstrual cycle, and serious adverse events that required medical attention were observed in 3.05% cases. The study results present a potential pharmacovigilance strategy that leverages social media to complement the voluntary reporting system.
이재륜(Jaeryun Lee),채윤창(Yunchang Chae),탁병철(Byungchul Tak) 한국컴퓨터정보학회 2020 韓國컴퓨터情報學會論文誌 Vol.25 No.9
이 논문에서는 HPC 환경에서 컨테이너의 사용 가능성을 탐구하고 적절한 PMI 라이브러리를 선택하는 기준을 실험을 통해 제안한다. HPC 환경에서 컨테이너 기술의 필요성이 대두되고 있지만 Docker 컨테이너 경우 잠재적인 보안 문제가 있어 HPC 환경에 적합하지 않다는 문제가 있다. 이러한 문제를 해결하기 위해 여러 HPC 컨테이너들이 등장하였지만, 서로 다른 특징들 따른 성능 차이가 발생할 수 있다. 그리하여 본 논문에서는 각 HPC 컨테이너 및 Docker 컨테이너 사이의 성능 차이를 NAS Parallel Benchmark 실험을 통해 측정하고 PMI 라이브러리의 종류에 따른 성능 변화를 확인해보았다. 그 결과 HPC 컨테이너와 Docker 컨테이너는 거의 네이티브와 유사한 성능을 보이거나 경우에 따라 오히려 나은 성능이 관측되었다. 또한 PMI 라이브러리 간의 비교에서는 PMIx가 PMI-2에 비해 모든 조건에서 뛰어난 것은 아닌 것으로 관측된 것을 확인할 수 있었다. In this paper, we propose the possibility of using containers in the HPC ecosystem and the criteria for selecting a proper PMI library. Although demand for container has been growing rapidly in the HPC ecosystem, Docker container which is the most widely used has a potential security problem and is not suitable for the HPC. Therefore, several HPC containers have appeared to solve this problem and the chance of performance differences also emerged. For this reason, we measured the performance difference between each HPC container and Docker container through NAS Parallel Benchmark experiment and checked the effect of the type of PMI library. As a result, the HPC container and the Docker container showed almost the same performance as native, or in some cases, rather better performance was observed. In the result of comparison between PMI libraries showed that PMIx was not superior to PMI-2 in all conditions.
실시간 자원 모니터링을 활용한 쿠버네티스 스케줄러 프레임워크 구현
김태영,이재륜,김태현,전인걸,박제만,진성근 대한임베디드공학회 2020 대한임베디드공학회논문지 Vol.15 No.3
Kubernetes is one of the most widely used tool in cloud computing environments. It m anages POD as a basic operational unit, providing a isolated environments through container tech nology. Basically, its scheduler properly allocates POD, considering the utilizations of CPUs, mem ories and volumes on hosts. In our work, we develop a customized scheduling framework additio nally considering network resources. In the framework, we can monitor the dynamic variations of resources and make it possible to utilize the resources for the scheduler. This framework offers not only observing necessary information but also visualizing the data to scheduler for providing convenience.
백형진,이혜진,이재륜,박정현,김근서,권민정,이태연,김진우,이효정 대한치주과학회 2024 Journal of Periodontal & Implant Science Vol.54 No.2
Purpose: This longitudinal cohort study aimed to evaluate the relationship between osteonecrosis of the jaw and pulp and periapical disease in patients who were administered bisphosphonates. Methods: Using data from a nationwide cohort, we examined the association among dental caries, pulp and periapical disease, and osteonecrosis of the jaw in women aged >50 years who received bisphosphonates for more than 1 year between 2002 and 2015. Because of ambiguities in the diagnosis of osteonecrosis of the jaw in population-based data, we operationally defined and categorized the condition into established and potential osteonecrosis of the jaw. Results: Pulp and periapical disease significantly increased the development of both established and potential osteonecrosis of the jaw (hazard ratio, 2.21; 95% confidence interval, 1.40–3.48; and hazard ratio, 2.22; 95% confidence interval, 1.65–2.98, respectively). Root canal treatment did not have any influence on the development of osteonecrosis of the jaw. Conclusions: Pulp and periapical disease may be a major risk factor for osteonecrosis of the jaw. The study findings suggest that patients should undergo regular dental examinations to detect pulp and periapical disease before or during the administration of bisphosphonates and that root canal treatment should be considered to decrease the risk of osteonecrosis of the jaw.