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2단계 캐쉬 인출 / 교체 정책에 의한 실시간 캐쉬 시스템
고재용(Jaeyong Koh),신현식(Heunsik Shin) 한국정보과학회 1992 한국정보과학회 학술발표논문집 Vol.19 No.2
캐쉬를 사용할 경우, 프로그램 수행시간의 예측가능성이 현저히 떨어진다. 실시간 시스템에서 캐쉬를 사용하여 성능 향상과 함께 예측 가능성을 부여하고자 하는 연구가 부분적으로 수행되어 왔으나, 이들은 캐쉬를 분할하여 각 태스크에 할당하므로써 cold start cache miss를 줄이는데 중점을 두고 있다. 따라서 고정 우선순위 연성 실시간 시스템의 스케쥴링 정책하에서 예측가능성을 보장하기 위해 캐쉬 분할과 함께 선인출을 사용하는 2단계 인출/교체 방법을 제안하고, 기존 연구에서 고려되지 않은 최악의 경우에 대한 성능 평가를 함으로써 경성 실시간 시스템에서도 캐쉬를 적용할 수 있도록 한다.
호텔의 경영성과 평가지수로서의 경제적 부가가치의 우월성
고재용(Jae Yong Koh) 한국호텔관광학회 2001 호텔관광연구 Vol.3 No.2
A newly coined measure index of corporate performance, EVA, has recently received considerable attention in the popular press. The numbers of companies are adopting this so-called new management system are increasing. The central theme of this study was to empirically compare the acclaimed information usefulness of EVA in comparison to other traditional measures index including accounting earnings. This study provides findings that are of importance to hotels considering the implementation of EVA. First, the EVA measures provide relatively more information than the traditional measures of accounting profit in terms of the strength of their associations with the hotel firm value. This evidence is consistent with what the EVA companies have experienced. Second, concept of the value added creature becomes the fair standard for the reasonable investment of the hotel and for financial decision, also it is useful means for the manager or the result measure business unit. Third, while this study has produced some useful results about EVA which should be of interest to both academics and practitioners, it is important to recognize some limitations. This study examines the validity of EVA in terms of information usefulness in firm valuation. This valuation focus is a direct response to the claim of EVA advocates that companies will be able to significantly improve their value by implementing EVA. Admittedly, this is only one way to evaluate the usefulness of a performance measure. Some other criteria may include whether EVA enables shareholders to implement more efficient contracts with managers. Future studies may explore these other aspects. As a result, the excellency of the economic value added as the standard of the real management result of the hotel must be recognized..
환대기업의 도산가능성 예측 연구 : 알트만 지수를 이용하여
고재용(Koh, Jae-Yong) 청운대학교 관광산업연구소 2015 관광산업연구 Vol.9 No.2
The primary objective of this paper is to forecast using Altman Index the bankruptcy possibility in the hospitality enterprise. To do this purpose, Altman Model of Developer & Professor Edward I. Altman developed was used to empirical analysis. The using indexes for Altman model are net working capital, retained earnings, EBIT, sales, market value of capital, total assets, book value of liabilities. In conclusion, to make increasing of Z- score, it is necessary to increase the numerator or/and to decrease the denominator. In other words, to make increasing of Z- score, it is necessary the management and action plan to increase the numerator or/and to decrease the denominator.
체인호텔과 내국인호텔의 경제적 부가가치 영향요인에 관한 연구
고재용(Jae Yong Koh) 한국호텔관광학회 2000 호텔관광연구 Vol.2 No.1
The purpose of this study is to find the influential factors and the degree to EVA, analysis the interrelationship, thus, present the methods to increase the firm value of the hotels. The samples are collected 8 hotels, located in Seoul. The accounting data is analyzed by T-test, correlation analysis, multiple regression. The analyzing periods are 1994-1997. A dependent variable used in this study is EVA. Independent variables are acid-text ratio, accounts receivable turnover, operating cash flows to current liabilities ratio, long-term debt to total liabilities ratio, number of times interest earned ratio, debt-equity ratio, operating cash flows to total liabilities ratio, inventory turnover, fixed asset turnover, profit margin, return on owner`s equity, return on assets, gross return on assets, labor costs, revenue per available room(REVPAR), ordinary income on capitals. As a resulting of analyzing, the influential factors in chain hotels were revealed fixed asset turnover and equity turnover, in non-chain, debt-equity ratio, acid-test ratio, operating cash flows to current liabilities ratio, return on owner`s equity, REVPAR. Thus, the objective of business must be changed to improve the quality of management and maximize the value.
두 베니언 네트워크의 직 / 병렬 혼합 연결을 통한 처리율과 유지 보수성의 향상
고재용(Jaeyong Koh),신현식(Heonshik Shin) 한국정보과학회 1997 한국정보과학회 학술발표논문집 Vol.24 No.2Ⅳ
일반적으로 직렬로 연결한 두개의 배니언 네트워크는 두 노드간에 많은 경로를 제공하여 높은 부하 분산 능력을 보인다. 반면 병렬로 연결된 구조에서는 두 노드간에 두개의 경로만을 제공하나 더 나은 결함 허용성을 보인다. 이 논문에서는 두개의 베니언 네트워크를 직렬과 병렬 혼합으로 연결하여 별 추가비용 없이 전송률과 결함 허용성에서 기존의 직렬 연결과 병렬 연결의 유리한 점들을 두루 취할 수 있음으로 보인다. 특히, 기존의 결함 허용 모델 보다 현실적인 비중단 유지 보수성 측면에서 새로운 네트워크를 분석하였다.