• 공학논문집
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• 제7권1호
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• pp.105-117
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• 2005

최근 전자 태그를 이용한 응용 서비스가 활성화됨에 따라 전자 태그의 데이터 처리에 대한 연구가 광범위하게 진행되고 있다. 따라서, 다양한 전자 태그로부터 수집된 객체 정보를 효율적으로 처리하기 위해 웹상에서 널리 사용되고 있는 XML 기반의 데이터 처리를 요구하고 있다. 이에 본 논문에서는 이러한 비즈니스 영역에서 자주 사용되는 재사용 가능한 객체 타입을 정의하고 있다. 이렇게 정의한 객체타입과 EPCIS Spec에서 정의한 Core Event Type을 활용하여 해운 물류 분야의 객체 정보 데이터 모델에 따른 스키마를 설계하였다.

• 국제강구조저널
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• 제18권4호
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• pp.1470-1481
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• 2018

Building-level response to post-earthquake fire hazards in steel buildings has been assessed using primarily two-dimensional analyses of the lateral force resisting system. This approach may not adequately consider potential vulnerabilities in the gravity framing system. For this reason, three-dimensional (3D) finite element models of a 10-story case study building with perimeter moment resisting frames were developed to analyze post-earthquake fire events and better understand building response. Earthquakes are simulated using ground motion time histories, while Eurocode parametric time-temperature curves are used to represent compartment fires. Incremental dynamic analysis and incremental fire analysis procedures capture a range of hazard intensities. Findings show that the structural response due to earthquake and fire hazards are somewhat decoupled from one another. Regardless of the level of plastic hinging present in the moment framing system due to a seismic event, gravity column failure is the initiating failure mode in a fire event.

• Journal of Information Technology Applications and Management
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• 제27권6호
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• pp.117-139
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• 2020

This research analyzes the factors that affect the consumers' participation of the internet-only banks, and suggests effective financial sales strategies and methods to attract more users. Through prior research review and interviews with experts, the factors affecting the consumers to sign up for the internet banks are identified. The actual user data from the internet banks are used for the analysis, providing more systematic and credible results. The research shows that social media buzz positively affects the user growth, proving Granger Causality relation of increasing social media buzz on K Bank increases K Bank users. The research also shows that marketing activities noticeably impacts K Bank's positive user growth. On the other hand, the event of Kakao Bank's grand opening shows negative effect. The results from the research validates the need for periodical monitoring process of social media buzz. Moreover, the research proves that the integrated analysis of social media buzz and marketing effect is also essential.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2013년도 추계학술발표대회
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• pp.361-364
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• 2013

이벤트란 객체 상태 변화에 따른 상황 변화를 의미한다. 이벤트를 표현할 때 어떤 요소들을 표현하느냐에 따라 유추할 수 있는 정보 내용이 각각 달라진다. 본 논문은 일반적인 이벤트 표현을 위해 필요한 구성요소들을 제안하고 이 구성요소들을 기반으로 기존에 제안된 이벤트 표현 방법들을 분석 비교한다. 본 논문에서 제안한 이벤트 표현 구성요소들은 표현력 측면에서 이벤트 표현 방법들을 분석하고 비교하는데 타당한 기준이 될 수 있고 향 후 이벤트를 표현하거나 추론하는 방법 혹은 언어를 개발하는데 필수적인 요소가 될 수 있다. 또한 논문에서 제시한 기존 이벤트 표현 방법 분석과 비교는 사용자가 이벤트 표현 방법을 선택하는데 있어 좋은 가이드라인이 될 수 있다.

• 전자통신동향분석
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• 제36권6호
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• pp.55-66
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• 2021

The air traffic industry, one of Korea's major industries, has recently experienced increased demand from overseas air passengers, launched a low-cost airline, and increased special freight transportation capacity. These initiatives have had a positive impact on air traffic (for example, profitability); however, air traffic management has become more complex, which has increased the incidence of aviation accidents and created safety hazards. There is an increasing need to collect and analyze aviation data that can proactively respond to aviation accidents. Concatenation of collected aviation data as big data and the development of artificial intelligence technology are gradually expanding aviation safety event analysis from conventional statistical analysis to machine learning-based analysis. This paper surveys the trends of flight safety event analysis to derive aviation safety risk factors by looking at the types and characteristics of aviation data that can be used to predict accidents related to safety in aviation operations.

• 반도체디스플레이기술학회지
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• 제22권1호
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• pp.88-93
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• 2023

In software engineering, requirement analysis is an important task throughout the process and takes up a high proportion. However, factors that fail to analyze requirements include communication failure, different understanding of the meaning of requirements, and failure to perform requirements normally. To solve this problem, we derived actors and behaviors using morpheme analysis and BERT algorithms in the Korean requirement document and constructed them as ontologies. A chatbot system with ontology data is constructed to derive a final system event list through Q&A with users. The chatbot system generates the derived system event list as a requirement diagram and a requirement specification and provides it to the user. Through the above system, diagrams and specifications with a level of coverage complied with Korean requirement documents were created.

• Asia pacific journal of information systems
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• 제30권2호
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• pp.328-352
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• 2020

If a firm announces an investment in IT security, how the market value of its competitors reacts to the announcement? We try to shed light on this question through an event study design. To test the relationship, we collected 143 announcements on cybersecurity investment and measured the subsequent impact on 533 competitors' abnormal returns, spanning from 2000 to 2019. Our estimation results present that, on average, the announcements have no observable impact on the market value of announcing firms and competitors as well, which is consistent with findings of a prior study. Interestingly, however, the impact becomes evident when we classify our samples by industries (Finance vs. non-Finance or ICT vs. non-ICT) and firm size (Big vs. Small). We interpret our empirical findings through the lenses of contagion effect and competition effect between announcing firms and their competitors. Key finding of our study is that, for financial service firms, the effect resulting from the announcement on cybersecurity investment transfers to competitors in the same direction (i.e., contagion effect).

• 한국생활과학회지
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• 제10권1호
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• pp.127-139
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• 2001

The purpose of this study was to find out the relationships among the elderly's self-esteem and life-adjustment according to decision-making power in their family. Interview survey was conducted and were selected. 296 over age 60 who lived in Jeonju. Frequencies, Percentiles, Pearson's correlation, t-test, ANOVA and Duncan's method were utilized for data analysis. The findings of this study were as follows ; 1) Decision-making power of the elderly in family had significant differences according to sex, coresiding with married children, and the sum of monthly personal expenses. 2) Elderly's self-esteem had significant differences according to sex, the present job, the situation of a spouse, and the sum of the monthly personal expenses. 3) Elderly's life-adjustment had significant difference according to residence type, the present job, the situation of a spouse, religion, education, and the sum of the monthly personal expenses. 4) Clothing and food in family had significant differences according to sex. 5) The elderly men's self-esteem had positive relationship with housing, sons and daughters guidance, grandchildren care, and family event and etc. But the elderly women's self-esteem had positive relationship with food, grandchildren care, and family event and etc. 6) The elderly men's life-adjustment had positive relationship with clothing, food, housing, family economy, sons and daughters guidance, grandchildren care, and family event and etc. But the elderly women's life-adjustment had positive relationship with food, housing, sons and daughters guidance, grandchildren care, and family event and etc.

• 한국지역지리학회지
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• 제15권2호
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• pp.250-260
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• 2009

본 연구의 목적은 레저 스포츠 이벤트 활동 참가추구목적에 따른 관광자원 개발 선호 방안을 도출하기 위한 방법으로 다차원 척도법 (MDS)을 이용하였다. 따라서 이에 따른 관광자원개발 선호도에 대한 세분시장별 특성을 파악해 보고자 한다. 연구 분석을 위해 전국 인라인 마라톤 대회 참여자 330부를 이용하였으며, 연구 방법은 SPSS 15.0 for Windows 통계 프로그램을 이용하였다. 결과분석에서는 첫째, 레저 스포츠 활동 참가자의 참가목적에 따른 세분집단을 군집화한 결과 '금전획득 참가목적자', '보통 자아실현참가 목적자', '강한 자아실현참가 목적자' 등 3개의 집단으로 세분화되었으며, 분석결과 세분화된 3집단은 관광자원개발에 영향을 주는 집단으로 밝혀졌다. 따라서 세분화된 집단특성에 따른 만족도를 높이기 위해서는 이들의 선호특성에 맞는 관광자원 개발의 필요성이 요구된다.

• 한국농공학회논문집
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• 제54권4호
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• pp.9-17
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• 2012

This study was aimed to characterize non-point source (NPS) pollutant runoff and estimate event mean concentrations (EMCs) from a small rural watershed located at the headwater area of the Gyeongan stream. The study watershed consists of the two major landuse, forest (72 %) and paddy field (28 %). The nine rainfall events ranging from 18.5 to 192.6 mm in amount were monitored in this study. Stream flow was measured at the watershed outlet using a water level gauge, while a number of water samples for each event were collected and analysed for water quality. Event pollutant loads varied greatly depending on rainfall events varying from 22.6 to 3,134.2 mg/L, 0.32 to 24.56 mg/L, 0.090 to 1.320 mg/L, and 2.3 to 149.8 mg/L for SS, TN, TP, and COD, correspondently. The respective mean EMCs were estimated by 104.2, 1.00, 0.168, and 7.9 mg/L. The Pearson correlation analysis showed that COD EMC was significantly correlated with those of SS, TN, and TP. Rainfall runoff ratio appeared to be negatively correlated with EMCs of SS, TP, and COD, although not statistically significant. The event loads from the largest rainfall was greater than the sum of those from the remaining eight events. The study results suggest that the appropriate management of intensified storm events are of greater importance in curbing NPS loads, while the estimated EMCs provide base data for the unit pollutant loads determination for the forest-paddy composite upstream watershed.