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멀티모달 방식을 통한 가스 종류 인식 딥러닝 모델 개발
안서희 ( Seo Hee Ahn ),김경영 ( Gyeong Yeong Kim ),김동주 ( Dong Ju Kim ) 한국정보처리학회 2023 정보처리학회논문지. 소프트웨어 및 데이터 공학 Vol.12 No.12
가스 누출 감지 시스템은 가스의 폭발성과 독성으로 인한 인명 피해를 최소화할 핵심적인 장치이다. 누출 감지 시스템은 대부분 단일 센서를 활용한 방식으로, 가스 센서나 열화상 카메라를 통한 검출 방식으로 진행되고 있다. 이러한 단일 센서 활용의 가스 누출감지 시스템 성능을 고도화하기 위하여, 본 연구에서는 가스 센서와 열화상 이미지 데이터에 멀티모달형 딥러닝을 적용한 연구를 소개한다. 멀티모달 공인 데이터셋인 MultimodalGasData를 통해 기존 논문과의 성능을 비교하였고, 가스 센서와 열화상 카메라의 단일모달 모델을 기반하여 네 가지 멀티모달 모델을 설계 및 학습하였다. 이를 통해 가스 센서와 열화상 카메라는 각각 1D CNN, GasNet 모델이 96.3%와 96.4%의 가장 높은 성능을 보였다. 앞선 두 단일모달 모델을 기반한 Early Fusion 형식의 멀티모달 모델 성능은 99.3%로 가장 높았으며, 또한 기존 논문의 멀티모달 모델 대비 3.3% 높았다. 본 연구의 높은 신뢰성을 갖춘 가스 누출 감지 시스템을 통해 가스 누출로 인한 추가적인 피해가 최소화되길 기대한다. Gas leak detection system is a key to minimize the loss of life due to the explosiveness and toxicity of gas. Most of the leak detection systems detect by gas sensors or thermal imaging cameras. To improve the performance of gas leak detection system using single-modal methods, the paper propose multimodal approach to gas sensor data and thermal camera data in developing a gas type identification model. MultimodalGasData, a multimodal open-dataset, is used to compare the performance of the four models developed through multimodal approach to gas sensors and thermal cameras with existing models. As a result, 1D CNN and GasNet models show the highest performance of 96.3% and 96.4%. The performance of the combined early fusion model of 1D CNN and GasNet reached 99.3%, 3.3% higher than the existing model. We hoped that further damage caused by gas leaks can be minimized through the gas leak detection system proposed in the study.
유아교육기관 실내 공간이 갖추어야 할 특성에 대한 문헌 고찰 - 2010년 이후 건축 및 유아교육분야 국내 학술논문을 중심으로 -
안서희(Ahn, Seo-Hee),차기주(Cha, Ki-Joo),장정윤(Chang, Jung-Yoon) 대한건축학회 2021 대한건축학회 학술발표대회 논문집 Vol.41 No.1
This study aimed to examine spatial characteristics that early childhood education(ECE) settings are expected to have. For the purpose, a literature review was conducted focusing on domestic academic journals published since 2010 in the fields of architecture and early childhood education respectively. A total of 27 articles, which satisfied the selection criteria, were included in the review, and characteristics were extracted and categorized, which finally converged into 11 domains: Suitability, Amenity, Safety, Flexibility, Individuality, Supporting Self-esteem, Aesthetic, Dynamicity, Comfort, Connectivity, and Mobility. This study contributes to the literature in that it identified the essential characteristics of interior spaces for ECE settings from both the architectural and educational perspectives.
유아교육기관 실내 공간이 갖추어야 할 특성에 대한 고찰 - 2010년 이후 건축 및 유아교육분야 국내 학술논문을 중심으로 -
차기주(Cha, Ki-Joo),장정윤(Chang, Jung-Yoon),안서희(Ahn, Seo-Hee) 대한건축학회 2021 대한건축학회논문집 Vol.37 No.6
This study aimed to examine desirable spatial characteristics that early childhood education(ECE) settings are expected to have. For the purpose, a literature review was conducted focusing on domestic academic journals published since 2010 in the fields of architecture and early childhood education respectively. A total of 28 articles, which satisfied the selection criteria, were reviewed, and in the process, desirable spatial characteristics were extracted and categorized, which finally converged into 11 domains: Suitability, Amenity, Safety, Flexibility, Individuality Supportability, Self-esteem Supportability, Aesthetic, Dynamicity, Comfortibility, Connectivity, and Mobility Supportability. Among these characteristics, spaces that support self-esteem, promote interactions among users and between indoor and outdoor environments, and are multi-functional were the most emphasized across the two disciplines in common. The two disciplines differed in terms of relative emphasis on some of the characteristics, particularly on Comfortability, Mobility Supportability, and Dynamicity. This study contributes to the literature in that it identified the essential desirable characteristics of ECE interior spaces in both of the architectural and educational perspectives and provides the basis for future interdisciplinary studies on ECE interior settings to better support young children‘s development.