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유현식(Hyunsik Yoo),문현수(Hyunsu Mun),이영석(Youngseok Lee) Korean Institute of Information Scientists and Eng 2018 정보과학회논문지 Vol.45 No.11
Because the speed of mobile applications(apps) has a considerably large impact on user experience, developers consider increasing app speed to improve user satisfaction. However, the measurement method employed in the Android development tool does not indicate the actual speed experienced by the user because it does not measure the rendering time of the download content. This study proposes a method to measure the speed of a mobile app by applying a speed index, which is a web performance index, to a mobile app. In this study, we developed a random user event generator and a mobile speed analyzer. By calculating the speed index for 1093 apps on the Google Play Store Top Charts, we found that 8% of the apps were slow.
실용음악 전공생을 위한 PBL 실감융합콘텐츠 제작 수업사례 연구
유현식(Hyunsik Yoo) 한국문화융합학회 2021 문화와 융합 Vol.43 No.5
This study analyzed the characteristics of the domestic music industry and the status of the domestic practical music major to develop career classes for students majoring in practical music. Additionally, research needs were investigated through in-depth interviews with industry experts and interviews with students majoring in practical music. The results showed that although the domestic practical music major has grown along the music industry for approximately 30 years, new job skills are required in the music industry, as it changes rapidly. However, the difficulty of students graduating was confirmed as they enter related industries and this need is not reflected in the educational field. Through prior research and a demand survey, the problems and limitations of the current practical music major were clearly identified, and tailoring career education to the major was found to be necessary. To design the curriculum, a problem-based learning (PBL) class was conducted as a pilot for 12 students majoring in practical music at S University in Gyeonggi-do. In doing so, the improvement of the job skills of participating students was enabled, and the possibility of advancing into the music industry was confirmed.
유현식 ( Hyunsik Yoo ),이연창 ( Yeon-chang Lee ),김상욱 ( Sang-wook Kim ) 한국정보처리학회 2021 한국정보처리학회 학술대회논문집 Vol.28 No.1
방향 네트워크 임베딩 문제는 주어진 방향 네트워크의 노드들을 그들 간의 비대칭 관계를 보존할 수 있는 저 차원 벡터들로 표현하는 것이다. 최근, 이 문제에 대한 다양한 방법들이 제안되어왔다. 본 논문에서 우리는 네 가지 실세계 방향 네트워크 데이터셋와 세 가지 에지 예측 시나리오를 이용한 실험을 통해, 최신 방향 네트워크 임베딩 방법들의 성능을 종합적으로 비교 분석한다.