Solution for Efficient Vital Data Transmission and Storing in m-Health Environment

이서준,조균연,송승환,장진수,이광인,이태노,Lee, Seo-Joon,Cho, Gyoun-Yon,Song, Seung-Hwan,Jang, Jin-Soo,Lee, Kwang-In,Lee, Tae-Ro The Society of Digital Policy and Management 2015 디지털융복합연구 Vol.13 No.5

세계적으로 정부 재정에 상당한 영향을 주고 있는 보건의료 비용 문제를 해결하기 위해 m-Health가 등장하였다. 그러나 최근 저조한 m-Health의 결과물들은 m-Health 서비스 개혁의 필요성으로 이어졌다. 따라서 본 논문의 목적은 이와 같은 일환으로 m-Health 환경에서 효율적인 생체 데이터 전송 및 보관을 위한 방안을 제시하는 것이다. 연구방법으로는 생체 데이터를 효율적으로 전송 및 보관할 수 있는 시스템 및 알고리즘을 개발하였다. 분석 결과로 제시하는 솔루션의 효율성을 평가하기 위하여 전송되는 데이터의 압축률을 비교 평가하였다. 그 결과 본 논문의 압축률은 30.4배였다. 본 연구가 제시하는 시스템은 향후 m-Health에서 생체 정보를 모니터링 하는 시스템을 구축하도록 기여할 것으로 전망된다. In order to tackle healthcare expenditure problems that affects a crucial part of government finances world-wide, m-Health emerged as a solution. However, recent poor outcomes of m-Health led to the need for reform in m-Health services. Therefore the purpose of this research is to propose a solution for efficient vital data transmission and storing in m-Health environment as part of such initiative. Methods included development of an efficient system and algorithm for vital data. For results, the compression ratio of the proposed solution was compared and evaluated. Results showed a compression ratio of 30.4. The proposed system is envisioned to contribute to the future vital data monitoring system in m-Health.

스키마 기반 자연어 증강 프롬프트를 이용한 한국어 대화 상태 추적

이서준(Seo-Joon Lee),신명철(Myeong-Cheol Shin),이동훈(Dong-Hun Lee),김응균(Eung-Gyun Kim),나승훈(Seung-Hoon Na) 한국정보과학회 2022 한국정보과학회 학술발표논문집 Vol.2022 No.12

대학병원 예산시스템의 특성이 예산슬랙에 미치는 영향

정태영(Tae-young Jung),이서준(Seo-joon Lee),한재훈(Jae-hoon Han) 한국산학기술학회 2018 한국산학기술학회논문지 Vol.19 No.2

예산은 조직성과의 체계적 관리와 조직상황을 진단하는데 중요한 관리도구이다. 병원은 비영리 조직으로서, 효율적인 예산집행이 중요하지만 현재 국내에는 병원의 예산슬랙에 관한 연구가 부족한 실정이다. 이에 본 연구가 수행되었다. 본 연구의 목적은 병원 예산시스템의 특성이 예산슬랙에 미치는 영향을 규명하는 것이다. 본 연구의 자료는 서울 소재 일개 대학병원의 예산 담당자 118명을 대상으로 자기기입식 설문조사를 시행하였다. 본 자료수집 기간은 2015년 7월 14일부터 7월 22일까지이다. 설문에 응답한 데이터는 STATA 14.0을 이용하여 빈도분석, 상관분석 및 회귀분석을 시행하였다. 연구결과 예산시스템의 특성 중 정보비대칭은 예산슬랙을 유의하게 증가시켰다. 반면에 예산 피드백과 예산 동기부여는 예산슬랙을 유의하게 감소시키는 것으로 나타났다. 본 연구결과 병원 직원 간 예산관련 정보의 원활한 공유가 효율적인 병원경영을 위해 중요하며, 예산슬랙을 체계적으로 관리하기 위해 예산행위에 있어서 예산피드백과 동기부여를 강화하는 것이 필요한 것으로 나타났다. 본 연구는 병원 예산슬랙 영향요인에 관한 연구가 부족한 상황에서, 예산슬랙 연구에 대한 관심을 환기시키고 국내 의료기관들의 경영 효율성을 향상시키는데 실증적인 기초자료를 제공해 줄 수 있을 것으로 사료된다. The budget is an essential tool for the systematic management of the organizational performance and for diagnosing the status of an organization. Effective budget execution is important to hospital management due to the nonprofit nature of hospitals. On the other hand, there are few studies regarding the budgetary slack of hospitals in Korea. The purpose of this study was to investigate the effects of the university hospital budgeting system characteristics on the budgetary slack. For this purpose, the data from 118 staff of a university hospital located in Seoul were collected by self-administered surveys. Frequency analysis, correlation analysis, and multiple regression analysis were carried out using Stata Ver. 14. The main results of this study were as follows. First, information asymmetry has a positive influence on the budgetary slack. Second, budget feedback and budget motivation have a negative effect on the budgetary slack. These findings suggest that the sharing of budget-related information among hospital staff is important for efficient hospital management. In addition, it is necessary to establish ways to enhance the feedback and motivation in budgetary activities for managing the budgetary slack systematically. The major strength of this study is that it draws attention to research concerning the budgetary slack of hospitals in the absence of research on the budgetary slack. The significance of this study was to provide an empirical basis for improving the efficiency of hospital management.

위기의 청소년들: 자살 생각, 계획, 시도에 영향을 미치는 요인 비교

김은영 ( Eun Young Kim ),이서준 ( Seo Joon Lee ),박수진 ( Su Jin Park ),이성규 ( Sung Kyu Lee ),임국환 ( Kook Hwan Rhim ) 대한보건협회 2014 대한보건연구 Vol.40 No.3

연구목적 : 청소년의 자살 생각, 계획, 시도에 영향을 미치는 중요한 위험 변수를 찾고자 하였다. 연구방법 : 대표성 있는 표본을 위해 복합표본 설계가 된 ‘2013년 청소년 건강행태 온라인 조사’ 데이터에 가중치를 부여하여 기술통계와 회귀분석을 하였다. 연구결과 : 청소년들은 자살생각(16.6%), 자살계획(5.7%), 자살시도(4.1%)를 하고 있었으며, 자살생각 경험이 있는 학생들중 30%가 자살계획을 세웠고, 그들 중 15%가 자살시도를 하였다. 남학생들 보다 여학생들이, 학년이 낮을수록, 가족이 없는 학생들이 그리고 흡연과 음주를 하는 학생들이 자살행동의 가능성이 높았다. 스트레스를 많이 받는다고 하는 학생들과 일상생활이 불가능할 정도의 절망감을 느낀 적이 있다고 한 학생들에게서 자살행동의 가능성은 매우 높았으며, 행복하다고 느끼는 학생일수록 자살행동의 가능성이 낮았다. 결론 : 청소년의 자살은 사회의 큰 손실이다. 청소년의 자살을 방지하기 위한 정책적인 개선이 필요하고 자살행동에 영향을 주는 요인을 고려한 자살방지프로그램의 운영이 요구된다. Objectives : To find significant risk factors which affect adolescents’ suicidal ideation, plans and attempt. Methods : Data was based on 2013 Korean Youth Risk Behavior Web-based Survey. We used the weights, strata and primary sampling unit information provided by the public use dataset to compute descriptive statistics and logistic regressions. Computations were done with SPSS version 20.0. Results : 16.6% of the total participants (72,435 of total adolescents aged 13-18 years old) had experienced suicide ideation, 5.70% of the participants planned suicide, and 4.10% actually attempted suicide. 30% of students with suicide ideation planned suicide and 15% of them attempted suicide among students who experienced suicide ideation. Girls showed a greater risk for suicidal ideation (20.39% of girls vs. 13.09% of boys, p<.001), suicide plans (6.72% of girls vs. 4.73% of boys, p<.001), and suicide attempts (5.54% of girls vs. 2.82% of boys, p<.001). The likelihood of all suicide behavior increased as the grades decreased among adolescents. Students with no family showed higher suicidal behavior than students with intact family (Suicide ideation; OR 2.38, 95% CI 1.78-3.18, Suicide plans; OR 4.90, 95% CI 3.79-6.87, Suicide attempt; OR 4.60, 95% CI 3.20-6.62). Students who smoke and drink alcohol were more likely to attempt suicide than those who don’t. Those with lower happiness status had higher odds on suicide behavior. Lastly, higher stress levels led to higher suicide ideation and higher sadness levels led to higher suicide ideation, plans and attempt. Conclusion : Given that adolescents’ suicide is a major public health concern, current suicide prevention programs for adolescents should be improved by strategically approaching the risk factors proven in this study.

기획특집 : 사물 인터넷 ; 사물 인터넷 환경에서의 효율적인 ECG 데이터 전송 방안에 관한 연구

조균연 ( Cho Gyoun Yon ),이서준 ( Lee Seo Joon ),이태노 ( Lee Tae Ro ) 한국정보처리학회 2014 정보처리학회논문지. 컴퓨터 및 통신시스템 Vol.3 No.10

u-Healthcare에서는 다양한 생체 정보를 지속적으로 수집하는 것이 필요하다. 이를 위해 센서와 서버 간의 효율적인 네트워크 환경으로써 IoT가 고려된다. 본 논문에서는 이러한 IoT 환경에 적합한 전송 방식 및 압축 알고리즘을 제안하였다. 결과는 기존의 압축 알고리즘 및 선행 연구들과 비교하였다. 결과에서 본 논문에서 제안하는 알고리즘의 압축효율이 11.7이 됨을 알 수 있었다. Consistently collecting a variety of vital signs is crucial in u-Healthcare. In order to do so, IoT is being considered as a top solution nowadays as an efficient network environment between the sensor and the server. This paper proposes a transmission method and compression algorithm which are appropriate for IoT environment. Results were compared to widely used compression methods, and were compared to other prior researches. The results showed that the compression ratio of our proposed algorithm was 11.7.

텍스트마이닝을 이용한 금연 홍보 웹툰의 반응분석: “씌가렛뎐” 댓글을 중심으로

이동균 ( Dong Kyun Lee ),이서준 ( Seo Joon Lee ),최인영 ( In Young Choi ) 한국보건정보통계학회(구 한국보건통계학회) 2018 보건정보통계학회지 Vol.43 No.1

Objectives: Recently, webtoons have been developed through a variety of fields’ advertisement platforms as well as non-smoking campaign. However, the only way to evaluate the effect of brand webtoons is limited to ratings, comments, and page views so far. Our research analyzed smoking cessation advertising brand webtoon’s comments by using text mining method. Methods: We chose the “Tale of Cigarette” webtoon which was well known as a cartoon for non-smoking campaign. Its rating was 9.91 rated by 107,264 readers. We analyzed the association between frequent morpheme and morpheme, and also analyzed sentiments embedded in user comments. A total of 20,560 comments were manually exported from Naver webtoon site and 18,117 comments were used for morpheme analysis and sentiment analysis. Results: Frequent morpheme analysis results showed that the ‘cigarette’ was most frequent, and was followed by other words such as ‘smoking cessation’, ‘human’, ‘smoker’, ‘dad’, ‘please’, ‘smoking’ in ranking. Comments were converted through transaction for association analysis. Support, confidence and lift were applied to the transaction data to check for association patterns, and results showed high lifts between the word ‘cigarette’ and words ‘smoking’, ‘tax’, ‘street’, ‘smell’, and ‘smoke’. Sentiment analysis results showed that negative sentiment in the early episodes changed into positive sentiment as the episodes progressed. Conclusions: Our results showed that the webtoon was an effective media as a non-smoking campaign. In order to successfully advertise smoking cessation through brand webtoon, it was important to convince the users and make them understand the harmful effects of smoking. In addition, it was equally important to ultimately make them quit through repeated publishing, and to attract them to smoking cessation related topics.

디지털 트윈 & IoT Sensing 융합 기반 전통시장 화재 모니터링 시스템

홍정택 ( Jung-taek Hong ),이규협 ( Kyu-hyup Lee ),송진우 ( Jin-woo Song ),이서준 ( Seo-joon Lee ),장영희 ( Young-hee Chang ),권순욱 ( Soon-wook Kwon ) 한국산업융합학회 2023 한국산업융합학회 논문집 Vol.26 No.6

Traditional markets are infrastructure with facilities and characteristics of very high population density. Recently, arcades have been installed through traditional market modernization policies, and aging infrastructure has been repaired. However, gas and electrical facilities of traditional markets cannot be easily replaced because of its high density. And because regular inspections are not conducted, management of facilities is on very poor condition. In addition, when a fire occurs in a traditional market, the fire easily spreads to nearby stores and is likely to spread to a large fire because of a lot of highly flammable substances. Smoke detectors and heat detectors are installed in most traditional markets to monitor fires, but malfunctions are frequent due to the nature of smoke detectors and heat detectors, and network facilities are not properly maintained. Therefore, in this study, gas detection sensors and flame detectors are additionally installed in Gwangmyeong Traditional Market, and a digital twin-based traditional market fire monitoring system is implemented in conjunction with existing sensors in the market's 3D model. With this digital twin based fire monitoring system, we can reduce the malfunctions of fire detect sensors, and can easily guide the evacuation route.