• 제목/요약/키워드: Allocation method

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제조시스템에서의 투자목표 달성을 위한 자원할당방법 (Resource Allocation Method for Achieving Investment Goals in Manufacturing System)

  • 문병근;조규갑
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 2004년도 춘계공동학술대회 논문집
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    • pp.167-170
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    • 2004
  • This paper proposes resource allocation method for achieving investment goals in manufacturing system. In order to align resource allocation and manufacturing system design, the system design decomposition (SDD) approach is used. In this paper, a mathematical formulation for resource allocation based on SDD approach is analyzed and a genetic algorithm application is discussed.

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저 전력 아키텍처 설계를 위한 새로운 자원할당 알고리즘 (A New Resource Allocation Algorithm for Low Power Architecture)

  • 신무경;인치호
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2000년도 추계종합학술대회 논문집(2)
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    • pp.329-332
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    • 2000
  • This paper proposed resource allocation algorithm for the minimum power consumption of functional unit in high level synthesis process as like DSP which is circuit to give many functional unit. In this paper, the proposed method though high level simulation find switching activity in circuit each functional unit exchange for binary sequence length and value bit are logic one value. To used the switching activity find the allocation with minimal power consumption, the proposed method visits all control steps one by one and determines the allocation with minimal power consumption at each control step.

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FMS에서 공구배분법을 고려한 생산계획에 관한 연구 (A Study on the Production Planning by Tool Allocation Methods on FMS)

  • 우병훈;하정진
    • 산업경영시스템학회지
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    • 제17권31호
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    • pp.21-31
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    • 1994
  • In this research, tool allocation methods are studied in conjunction with loading and muting in FMSs. The objective function is to minimize production time while maximizing machine utilization of the FMS with several constraints. The proposed method has 2 steps. The first step is to determine tool allocation type with the proposed tool allocation method. The second step is to design loading models with routing. The effectiveness of the proposed FMS operation procedure is shown through numerical examples.

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개체군 변환 유전자 알고리즘의 새로운 수명 할당 방식에 관한 연구 (A Study on a New Lifetime allocation Method of Genetic Algorithm with Varying Population Size)

  • 권기호
    • 전자공학회논문지C
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    • 제36C권1호
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    • pp.66-72
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    • 1999
  • 본 논문은 개체군 변환 알고리즘의 새로운 수명할당방식(allocation method)을 제안한다. 이 방법으로 개체군의 크기를 적합도(fitness)에 따라서 조절할 수 있다. 개체군(population)의 크기는 최적해(optimal value) 근처로 갈수록 안정된 상태로 가게 된다. 유전자 코딩에 있어서는 이배체(diploidy) 방식을 사용하였다. 시뮬레이션을 통하여 새로운 수명 할당 방식이 개체군의 크기를 조절할 수 있음을 확인한다.

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다중사용자 OFDM 광대역 무선인터넷 시스템의 자원할당 방법 (Resouce Allocation for Multiuser OFDM Systems)

  • 정용주;백천현;김후곤
    • 한국경영과학회지
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    • 제32권3호
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    • pp.33-46
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    • 2007
  • This study deals with the adaptive multiuser OFDM (Orthogonal Frequency Division Multiplexing) system which adjusts the resource allocation according to the environmental changes in such as wireless and quality of service required by users. The resource allocation includes subcarrier assignment to users, modulation method and power used for subcarriers. We first develop a general optimization model which maximizes data throughput while satisfying data rates required by users and total power constraints. Based on the property that this problem has the 0 duality gap, we apply the subgradient dual optimization method which obtains the solution of the dual problem by iteration of simple calculations. Extensive experiments with realistic data have shown that the subgradient dual method is applicable to the real world system, and can be used as a dynamic resource allocation mechanism.

충돌위험분배모델을 이용한 해상교량의 설계선박 선정 (Design Vessel Selection of Maritime Bridges using Collision Risk Allocation Model)

  • 이성로;이병화;배용귀
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2005년도 봄학술 발표회 논문집(I)
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    • pp.351-354
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    • 2005
  • In this study ship collision risk analysis is performed to determine the design vessel for collision impact analysis of the maritime bridge. Method II which is a more complicated probability based analysis procedure is used to select the design vessel for collision impact. The AF allocation by weights seems to be more reasonable than the pylon concentration allocation method because this AF allocation takes the design parameter characteristics quantitatively into consideration although the pylon concentration allocation method brings more economical results when the overestimated design collision strength of piers compared to the strength of pylon is moderately modified.

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Optimal Allocation Method of Hybrid Active Power Filters in Active Distribution Networks Based on Differential Evolution Algorithm

  • Chen, Yougen;Chen, Weiwei;Yang, Renli;Li, Zhiyong
    • Journal of Power Electronics
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    • 제19권5호
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    • pp.1289-1302
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    • 2019
  • In this paper, an optimal allocation method of a hybrid active power filter in an active distribution network is designed based on the differential evolution algorithm to resolve the harmonic generation problem when a distributed generation system is connected to the grid. A distributed generation system model in the calculation of power flow is established. An improved back/forward sweep algorithm and a decoupling algorithm are proposed for fundamental power flow and harmonic power flow. On this basis, a multi-objective optimization allocation model of the location and capacity of a hybrid filter in an active distribution network is built, and an optimal allocation scheme of the hybrid active power filter based on the differential evolution algorithm is proposed. To verify the effect of the harmonic suppression of the designed scheme, simulation analysis in an IEEE-33 nodes model and an experimental analysis on a test platform of a microgrid are adopted.

조경계획에 있어서 수작도면중첩기법을 적용한 조합적 배분법에 관 한 연구 (A Study on the Combinational Allocation Method using Hand-Drawn Map Overlay Technique in Landscape Planning)

  • 김영대
    • 한국조경학회지
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    • 제20권2호
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    • pp.119-126
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    • 1992
  • The purpose of this study is to develop the allocation method which could be applied to the transitional stage between analysis and synthesis to select the best alternative in landscape planning process. By using the matrix of alternatives with site-planning elements locational drawing in each, the combinational allocation method can make the process more rational and also more efficient. Hand-drawn map overlay technique accommodates the work I handy way. The method is useful in building conceptual scheme in landscape planning especially when it is applied to small scale project.

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Bit Allocation for Interframe Video Coding Systems

  • Kim, Wook-Joong;Kim, Seong-Dae;Kim, Jin-Woong
    • ETRI Journal
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    • 제24권4호
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    • pp.280-289
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    • 2002
  • In this work, we present a novel approach to the bit allocation problem that aims to minimize overall distortion subject to a bit rate constraint. The optimal solution can be found by the Lagrangian method with dynamic programming. However, the optimal bit allocation for block-based interframe coding is practically unattainable because of the interframe dependency of macroblocks caused by motion compensation. To reduce the computational burden while maintaining a result close to the optimum, i.e., near optimum, we propose an alternative method. First, we present a partitioned form of the bit allocation problem: a "frame-level problem" and "one-frame macroblock-level problems." We show that the solution to this new form is also the solution to the conventional bit allocation problem. Further, we propose a bit allocation algorithm using a "two-phase optimization technique" with an interframe dependency model and a rate-distortion model.

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상호작용 다목적 최적화 방법론을 이용한 전시 탄약 할당 모형 (Ammunition Allocation Model using an Interactive Multi-objective Optimization(MOO) Method)

  • 정민섭;박명섭
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회 2006년도 추계학술대회
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    • pp.513-524
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    • 2006
  • The ammunition allocation problem is a Multi-objective optimization(MOO) problem, maximizing fill-rate of multiple user troops and minimizing transportation time. Recent studies attempted to solve this problem by the prior preference articulation approach such as goal programming. They require that all the preference information of decision makers(DM) should be extracted prior to solving the problem. However, the prior preference information is difficult to implement properly in a rapidly changing state of war. Moreover they have some limitations such as heavy cognitive effort required to DM. This paper proposes a new ammunition allocation model based on more reasonable assumptions and uses an interactive MOO method to the ammunition allocation problem to overcome the limitations mentioned above. In particular, this article uses the GDF procedure, one of the well-known interactive optimization methods in the MOO liter-ature, in solving the ammunition allocation problem.

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