• Industrial Engineering and Management Systems
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• 제7권1호
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• pp.57-65
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• 2008

Available-to-promise (ATP) exhibiting availability of manufacturing resources can be used to support customer order promising. Recently, one advanced function called Capable-to-promise (CTP) is provided by several modern APS (advanced planning system) that checks available capacity for placing new production orders or increasing already scheduled production orders. At the customer enquiry stage while considering the order delivery date and quantity to quote, both ATP and CTP are allocated to support order promising. In particular, current trends of mass customization and multi-side production chain derive several new constraints that should be considered when ATP/CTP allocation planning for order promising - such as customer's preference plants or material vendors, material compatibility, etc. Moreover, ATP/CTP allocation planning would be executed over a rolling time horizon. To utilize capacity and material manufacturing resource flexibly and fulfill more customer orders, ATP/CTP rolling planning should possess resource reallocation mechanism under the constraints of order quantities and delivery dates for all previous order promising. Therefore, to enhance order promising with reliability and flexibility to reallocate manufacturing resource, the ATP/CTP reallocation planning mechanism is needed in order to reallocate material and capacity resource for fulfilling all previous promised and new customer orders beneficially with considering new derived material and capacity constraints.

• 경영과학
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• 제29권3호
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• pp.157-168
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• 2012

In this study, we consider an order promising problem at parallel machine shops where orders arrive dynamically. We develop methods for the problem, which instantly quote the due-dates of arrived orders. In this study, we first propose methods which can estimate flow times of orders, in which the current and future inventory status as well as the specific scheduling scheme used in the shop are taken into account, and then the due-dates are set by the order promising methods using the estimation results. The quoted due-dates of orders are compared with the actual completion times of those which are obtained from the simulation runs. The series of computational experiments show that the superior performance of the proposed methods in terms of the accuracy of due-date quotation.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2001년도 The Seoul International Simulation Conference
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• pp.435-439
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• 2001

In many make-to-order production systems customers ask due date confirmed and kept. Unexpected urgent orders from valuable customers often requires short lead times, which causes existing orders in the production schedule to be delayed so that their confirmed due dates cannot be met. This Imposes significant uncertainty on the production schedule in a supply chain. In this paper, we propose a new concept of capacity reservation as a viable tool for due date promising and suggest its operational alternatives. Simulation results show that the reserved capacity scheme appears to outperform simple FCFS scheduling policy in terms of the number of valuable urgent orders accepted and total profit attained.

• 대한안전경영과학회지
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• 제17권2호
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• pp.207-214
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• 2015

The purpose of this paper is an application of AHP(Analytic Hierarchy Process) in the priority setting of promising technology in division of senior friendly product based on the previous studies. In this paper, the decision criteria for evaluating promising technologies in division of senior friendly product are identified and the hierarchical structure of decision making process is developed systematically. Subsequently the values of weights for relative importance among decision criteria are derived using AHP methodology, and the score of importance of promising technology in division of senior friendly product with respect to each criterion is evaluated. Finally the score of each promising technology in division of senior friendly product is quantified in order to prioritize them. We discuss implications of our results with a viewpoint of technology policy in division of senior friendly product.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2002년도 추계공동학술대회
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• pp.433-439
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• 2002

In this paper, we implemented technology assessment on the public R＆D activities in IT field in order to select the promising technologies, so called "star technology," making for national industry development. Technology assessment frame in this study included qualitative factors. IT technologies are classified five sector - network, wireless/broadcasting, SW/application/computer/terminal equipment, semiconductor/component. Expert opinion interviews on each field are carried out. Assessment factors consist of technology usefulness and technology competitiveness. In the final analysis, 23 technology items selected as a promising technologies and the results can be used public R＆D planning and If industry policy.

• 기술혁신학회지
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• 제15권2호
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• pp.345-368
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• 2012

과학기술이 경제사회의 핵심동력으로 작용하면서 향후 산업발전 및 국가 경쟁력 강화에 기여할 수 있는 과학기술에 대한 경쟁력을 확보하기 위해 신규 유망기술 발굴의 필요성이 높아지고 있다. 주요 선진국에서는 미래 유망기술을 예측하고 이에 대한 연구개발 지원이 추진 중에 있다. 현재 우리나라에서도 미래기술 예측을 위한 모델 및 조사체계 강화방안에 관한 연구가 진행되고 있다. 본 연구에서는 신성장동력으로 각광받고 있는 바이오 분야에 대한 미래유망 연구 및 기술에 대한 도출방법을 연구하고자 한다. 바이오 분야 논문을 수집 및 분석하고 주제를 확인하기 위해 텍스트마이닝 기법을 활용하여 주요 연구 분야를 도출하고자 한다. 텍스트마이닝 기법으로 논문등고선을 분석하여 바이오 분야의 중점 연구분야를 도출한 후, 심층분석을 통해 세부적인 연구동향 파악으로 미래유망 바이오 중점 연구테마에 대해 살펴보고자 한다.

• 경영과학
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• 제31권4호
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• pp.151-163
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• 2014

The sports industry is expected to develop into a huge business through convergence with existing industries such as the broadcasting/information communications, health/medicine, and entertainment/leisure. This paper aims to extract and analyse the candidated promising sports industries at the national level in order to promote them in the long term, and adopts a policy-based approach to such efforts. To extract promising sports industries at the national level, a methodology that considers economic effects such as global competitiveness, technological characteristics, and the creation of jobs, as well as technical development projects, should be adopted. In this study, It was extracted 59 candidated promising sports industries using literature review and expert opinions. As a result of in-depth survey, we found some critical implications each area as follows; health club operation in the lifetime and participation sports area, female sports dance in the welfare sports area, new material sports shoes in the lifetime and welfare sports area, and dynamic training system in the professional sports area.

• Communications for Statistical Applications and Methods
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• 제19권3호
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• pp.333-344
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• 2012

We consider some statistical properties of the first order difference-based error variance estimator in nonparametric regression models with a single outlier. So far under an outlier(s) such difference-based estimators has been rarely discussed. We propose the first order difference-based estimator using the leave-one-out method to detect a single outlier and simulate the outlier detection in a nonparametric regression model with the single outlier. Moreover, the outlier detection works well. The results are promising even in nonparametric regression models with many outliers using some difference based estimators.

• 한국컴퓨터정보학회논문지
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• 제25권12호
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• pp.261-270
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• 2020

본 연구는 피기백 화차운송 시스템의 특허문서를 활용하여 관련 분야의 유망기술을 파악하는 것을 목표로 한다. 이를 위해 피기백 운송 시스템의 선행연구 및 관련 보고서로 기술 키워드를 추출하여 특허문서를 추출한다. 추출된 특허문서에 텍스트마이닝 기법을 적용하여 빈도수가 높은 키워드를 확인하고 피기백 운송 시스템의 핵심기술의 토픽을 식별하기 위해 LDA(Latent Dirichlet Allocation) 알고리즘을 적용하였다. 마지막으로, 시계열 분석 기법인 ARIMA 모델을 핵심기술의 토픽에 적용하여 기술 추세를 예측하고 피기백 운송 시스템에 대한 유망한 기술을 식별하였다. 특허 분석 결과, 데이터 기반 통합관리 시스템과 운영 계획 시스템 그리고 복합수송 중 특수 화물(기체, 액체류) 운송 및 보관 기술이 미래에 유망한 핵심기술로 도출되었고, 데이터 송수신 및 분석 기술이 중요한 세부 기술임을 확인하였다. 제안된 분석 방법은 피기백 운송 시스템의 R&D 연구개발 전략 및 기술 로드맵을 개발하는 데 있어 충분한 자료가 될 수 있다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 하계종합학술대회 논문집(4)
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• pp.171-173
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• 2000

In this paper, we present a new interpolation method for the color filter away(CFA). In order to capture color images. typical input devices use a single chip CCD imaging sensor with color filter array. As a result, the single chip CCD does not provide sufficient color resolutions since it arranges different color filters sequentially on a single CCD, resulting in aliasing noise and loss of resolution. In order to reconstruct high quality color images, we propose to use the interpolation algorithm using high order B-splines. Experiments show promising results.