نتایج جستجو برای: rcpsp

تعداد نتایج: 244  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده مهندسی کامپیوتر 1393

طراحی و زمان بندی فعالیت ها از دیدگاه تولید طرح های موفق و بیشینه نمودن بهره وری اهمیت فوق العاده ای دارند. به علاوه در محیط واقعی، مسائل شامل چندین هدف می باشند که باید به طور هم زمان بهینه شوند و محیط واقعی معمولاً به وسیله اطلاعات غیر قطعی و غیر قابل کنترل مشخص می شود. مسأله زمان بندی پروژه با منابع محدود (rcpsp) چند هدفه می کوشد تا فعالیت ها را زمان بندی نماید و منابع را به منظور یافتن یک مج...

Journal: :CoRR 2007
Igor Pesek Janez Zerovnik

This paper considers heuristics for well known resource-constrained project scheduling problem (RCPSP). First a feasible schedule is constructed using randomized best insertion algorithm. The construction is followed by a local search where a new solution is generated as follows: first we randomly delete m activities from the list, which are then reinserted in the list in consecutive order. At ...

2006
MILOŠ ŠEDA

This paper describes a new technique for solving the duration minimization in a resourceconstrained network. It is based on a transformation of the resource-constrained project scheduling problem (RCPSP) to a sequence of (multi)knapsack problem (MKP) solutions. In the first part, three deterministic approaches are summarized and their time complexity is discussed. Due to the combinatorial natur...

2017
Alexander Lazarev

This paper focuses on estimating maximum resource loads in ResourceConstrained Project Scheduling Problem (RCPSP). We examine a variant of vector sum problem with fractions: considering preemptions allowed, determine what part of each of n jobs should be accomplished in order to minimize sum of squares of non-consumed amounts of resources, taking into account the resource constraints along with...

Journal: :JORS 2011
Tony Wauters Katja Verbeeck Greet Vanden Berghe Patrick De Causmaecker

The integration of machine learning methods into meta-heuristic search techniques is currently an important topic in the field of combinatorial optimisation. It is often referred to as intelligent optimisation [1]. Learning has the potential of helping the search process in several ways. Searching for instance, can become more generic when online learning and automation mechanisms tune the crit...

2007
Jacques A. Ferland Jorge Amaya Melody Suzy Djuimo

In the Capacitated Open Pit Mining Problem, we consider the sequential extraction of blocks in order to maximize the total discounted profit under an extraction capacity during each period of the horizon. We propose a formulation closely related to the Resource-Constrained Project Scheduling Problem (RCPSP) where the genotype representation of the solution is based on a priority value encoding....

2011
M. Klimek P. Lebkowski

In this paper, we have proposed new algorithms for the problem of predictive production scheduling, with the Resource-Constrained Project Scheduling Problem (RCPSP). Those algorithms are adjusted for making robust the activity sequences characterised by specific unsurpassable times of completion of particular tasks related to milestones. The calculation procedures presented here provide protect...

2004
Abdallah Elkhyari Christelle Guéret

Scheduling problems considered in the literature are often static (activities are known in advance and constraints are fixed). However, every real-life schedule is subject to unexpected events. In these cases, a new solution is needed in a preferably short time and as close as possible to the current solution. In this paper, we present an exact approach for solving dynamic Resource-Constrained ...

2017
Nan Liu Laisheng Xiang Xiyu Liu

A P system for resource-constrained project scheduling problem(RCPSP) based on serial schedule generation scheme is proposed in this paper to provide new ideas for parallel solutions in today’s big data environment. Because P system has great parallelism, it could solve hard problems, typically NP-complete problems, in polynomial time. We use membrane to conduct the whole process of computation...

Journal: :European Journal of Operational Research 2008
Vicente Valls Verdejo Francisco Ballestín M. Sacramento Quintanilla

This paper proposes a Hybrid Genetic Algorithm (HGA) for the Resource Constrained Project Scheduling Problem (RCPSP). Resources are renewable and there is a unique way to perform the activities. This work employs Genetics Algorithms (GA) and Hybrid Genetic Algorithms to schedule project activities to minimize makespan subject to precedence constraints and resources availability. The algorithms ...

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