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김영갑 ( Young-gab Kim ),이준섭 ( Jun-sub Lee ),조상현 ( Sanghyun Cho ),김문정 ( Moon Jeong Kim ),이민수 ( Min-soo Lee ),김상록 ( Sang-rok Kim ),김인호 ( In Ho Kim ),김성훈 ( Sung Hoon Kim ) 한국정보처리학회 2007 한국정보처리학회 학술대회논문집 Vol.14 No.2
최근 전자우편이나 해킹을 통한 피싱과 파밍 등 금융 사기가 많이 발생하고 있다. 이에 이러한 피해로부터 사용자의 경제적 손실 및 개인정보 보호를 위하여 웹 사이트 인증, 전자우편 인증 등의 연구가 진행되고 있다. 기존 인증 방법에서는 WBL (Website Black-List) DB를 사용하였는데, 피싱의 짧은 생명주기(life cycle)로 인해 WBL DB의 유효성은 떨어질 뿐만 아니라, 피싱 사건 발생 후 웹 사이트가 WBL DB에 등록되기 전까지는 확인 불가능하다는 단점을 가지고 있다. 이러한 문제점을 극복하기 위해 WWL (Website White-List) DB를 이용한 연구가 진행 중이지만 아직은 미비한 편이다. 이에 본 논문에서는 기존의 WBL DB와 WWL DB를 이용한 방법이 가지고 있는 한계점을 극복하기 위해 WWL DB 항목을 정의하고, 이를 이용하여 웹사이트 보안 위험도를 정량화할 수 있는 웹사이트 위험도 산정 기법을 제안한다.
김영갑(Young-Gab Kim),백영교(Youngkyo Baek),인호(Hoh Peter In),백두권(Doo-Kwon Baik) 한국정보과학회 2006 정보과학회논문지 : 시스템 및 이론 Vol.33 No.8
급속한 인터넷 기술의 발전으로 기업이나 기관에서의 업무 처리는 인터넷 기반 기술에 의존하고 있다. 또한 주요 정보통신 시설의 네트워크 의존도와 결합도가 증가함에 따라 시스템내의 취약성을 대상으로 하는 침해 행위와 같은 사이버 보안 사고의 수가 크게 증가하고 있다. 이에 따라 개인정보는 물론 컴퓨터 자원들의 침해와 관련된 피해 파급(damage propagation)에 관한 연구가 요구된다. 그러나 기존의 제안된 모델들은 위험 관리 측면의 방법론적인 접근이거나, 바이러스(virus)나 웜(worm) 같은 특정 위협(threats)에 대해서만 적용할 수 있는 연구가 진행되어 왔다. 따라서 본 논문에서는 과거의 위협 발생 데이타를 근거로 하여 전체 시스템이 가지고 있는 다양한 위협들에 대해 적용 가능한 마코프 프로세스 (markov process)에 기반한 피해 파급 모델을 제시한다. 이를 통하여 각 위협별 발생 확률 및 발생 빈도를 예측할 수 있다. With rapid development of Internet technology, business management in an organization or an enterprise depends on Internet-based technology for the most part. Furthermore, as dependency and cohesiveness of network in the communication facilities are increasing, cyber attacks have been increased against vulnerable resource in the information system. Hence, to protect private information and computer resource, research for damage propagation is required in this situation. However the proposed traditional models present just mechanism for risk management, or are able to be applied to the specified threats such as virus or worm. Therefore, we propose the probabilistic model of damage propagation based on the Markov process, which can be applied to diverse threats in the information systems. Using the proposed model in this paper, we can predict the occurrence probability and occurrence frequency for each threats in the entire system.
김영갑(Kim Young Gab),홍종숙(Hong Jong Sook) 한국외식경영학회 2009 외식경영연구 Vol.12 No.5
This study was to research a market segmentation in family restaurant customers' by using the Q methodology. For this purpose, the researcher surveyed family restaurant customers and categorized the restaurant markets for effective marketing. Categorization of family restaurant markets will result in segmentation of the market, which is essential for restaurant marketing. The P-sample for this study consisted of 24 who had been sampled from the restaurant customers. For Q-factor analysis, QUANL statistical program was used, and the correlations among categories were analyzed, while independence of each category was examined. As a result of such analyses, a total of 4 categories of market segmentation in family restaurant customers' could be determined: 'type of menu preferences', 'type of pursuing an accessibility', 'type of pursuing an atmosphere', 'type of event preferences'
사이버대학생의 학업소진, 학과환경특성이 학교생활만족도와 학업지속의향에 미치는 영향 - A 사이버대학교 호텔관광외식경영학과를 중심으로
김영갑(Young Gab Kim),전혜진(He Jin Chun) 한국외식경영학회 2012 외식경영연구 Vol.15 No.2
Regardless of the rapid growing number of cyber universities, there is few research took place for the subject, especially for students of hospitality and tourism management majored in cyber university, This study aims to identify the effects of academic burnout and environmental characteristics of department to learning persistence and academic achievement, 310 survey questionnaire were distributed and 287 out of 297 survey results were used for analysis. To analyze the results, frequency test, factor analysis, reliability test, correlation test and multiple regression test were executed, The result of multiple regression analysis showed that academic burnout negatively impacts academic satisfaction level and environmental characteristics of department, vision of major, interaction positively imapcts academic satisfaction level, The second, academic burnout negatively affects learning persistence and environmental characteristics of department, vision of major positively affects learning persistence.
김영갑 ( Young Gab Kim ),조춘봉 ( Chun Bong Cho ) 한국호텔ㆍ리조트ㆍ카지노산학학회 2009 호텔리조트연구 Vol.8 No.1
This study is a research on eating-out customers` behavior of inquiring information through the supporting research on the searching information behavior of the customers searching restaurants` menu items. The result was deduced that the source of searching information were different according to sex, age, education, job, eating-out frequency, etc., based on demographic analysis. In conclusion, on a basis of the result of the analysis, I explain the practical suggestion of price strategy of food service industry and the course of the future study.
일개 응급의료센터에서 분석한 불화수소산 대량 누출이 지역사회 건강에 미친 영향
김영갑 ( Young Gab Kim ),이주택 ( Ju Taek Lee ),박상현 ( Sang Hyun Park ),이찬희 ( Chan Hee Lee ),최마이클승필 ( Sung Pil Choe ),제동욱 ( Dong Wook Je ),이창재 ( Chang Jae Lee ),고대이 ( Taei Ko ),조혜정 ( Hye Jung Jo ) 대한임상독성학회 2013 대한임상독성학회지 Vol.11 No.2
Purpose: The purpose of this study is to verify the influence of a massive hydrofluoric acid spill on community health through patients who claimed to have been exposed. Methods: We analyzed 2459 patients who visited our emergency department with the claim of exposure to hydrofluoric acid, and retrospective analyses were performed. We analyzed changes in numbers of visitors per day from the day of the accidental hydrofluoric acid spill, symptoms presented by the 1924 patients, and general characteristics. Comparisons of symptoms and hematologic characteristics were made between the initially set evacuation zone(1.3 km radius parameters from the spill) and the outer zone. Results: A total of 2,459 patients who claimed exposure visited our ED from 27 September 2012 to 23 October 2012, and there was a significant increase in the number of visiting patients from day 8 of the hydrofluoric acid spill. The most common complaints were a sore throat, 729(37.9%) and no specific symptom with health concern, 547 (28.4%). Statistically significant findings were pulmonary symptoms (p=0.001), nasal symptoms (p=0.001), diarrhea (p=0.023), and skin symptoms (p=0.007). In hematologic study, a statistically significant difference was observed in white blood cell count (p=0.018), creatine phosphokinase (p<0.001), erythrocyte sediment rate (p=0.013), and phosphorus (p<0.001). Conclusion: A significant increase in the number of patients was observed one week after the accidental spill of hydrofluoric acid. The most frequent symptoms were sore throat, headache, cough, and sputum. Statistically significant increase in creatine phosphokinase level and decrease in phosphorus level were noted in patients within the evacuation zone.
가격수준이 외식메뉴의 품질, 위험, 가치지각 및 구매의도에 미치는 영향
김영갑 ( Young Gab Kim ) 한국호텔ㆍ리조트ㆍ카지노산학학회 2009 호텔리조트연구 Vol.8 No.1
This study was designed to examine what kind of influence a price level of a restaurant menu gave to perceived quality, perceived risk, perceived value, purchase intention. To make this study clear, after I made the survey of the price level of a restaurant menu, the perceived risk, the perceived quality, the perceived value, and the purchase intention, I conducted the analysis of the model using simple regression. First, the perceived quality with the price level has statistically an obvious difference. Second, the perceived risk with the price level is the highest in 2,100won, the price level of 70% and in 3,500won and 4,900won, the price level of 50% and 30%, there is an obvious difference. Third, the purchase intention and perceived value are the highest in the price level of 30%~50%.