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  • simulated annealing  (3)
  • Springer  (3)
  • American Physical Society
  • MDPI
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    OR spectrum 17 (1995), S. 211-225 
    ISSN: 1436-6304
    Keywords: Generalised assignment problem ; local search ; simulated annealing ; tabu search ; heuristics ; set partitioning ; branch and bound ; Verallgemeinertes Zuordnungsproblem ; lokale Suche ; simulated annealing ; tabu search ; set partitioning ; branch und bound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Description / Table of Contents: Zusammenfassung Das verallgemeinerte Zuordnungsproblem (GAP) besteht darin, eine Menge von Aufträgen einer Menge von Agenten kostenminimal zuzuordnen. Jeder Auftrag wird genau einem Agenten zugeordnet; die Summe der Anforderungen der einem Agenten zugeordneten Aufträge ist durch die diesem zur Verfügung stehenden Ressourcen begrenzt. Die Arbeit gibt eine Übersicht über exakte und heuristische Lösungsverfahren zum GAP. Es wird einλ-Generierungs-Mechanismus beschrieben, wobei verschiedene Suchstrategien (ein Hybridverfahren aus Simulated Annealing und Tabu Search sowie reine Tabu Search-Verfahren) sowie Parameterkonstellationen untersucht werden. Die entwickelten Methoden beinhalten eine Anzahl von Eigenschaften, die sich für die Erzielung von optimalen Lösungen sowie guten Näherungen als geeignet erwiesen haben. Die Effektivität der Ansätze wird über den Vergleich hinsichtlich Lösungsqualität und Berechnungsanforderungen mit anderen speziellen Verfahren wie Branch und Bound, Simulated Annealing sowie Partitionierungs-Heuristiken bei Anwendung auf Standardprobleme aus der Literatur gezeigt.
    Notes: Abstract The generalised assignment problem (GAP) is the problem of finding a minimum cost assignment of a set of jobs to a set of agents. Each job is assigned to exactly one agent. The total demands of all jobs assigned to any agent can not exceed the total resources available to that agent. A review of exact and heuristic methods is presented. Aλ-generation mechanism is introduced. Different search strategies and parameter settings are investigated for theλ-generation descent, hybrid simulated annealing/tabu search and tabu search heuristic methods. The developed methods incorporate a number of features that have proven useful for obtaining optimal and near optimal solutions. The effectiveness of our approaches is established by comparing their performance in terms of solution quality and computional requirement to other specialized branch-and-bound tree search, simulated annealing and set partitioning heuristics on a set of standard problems from the literature.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of operations research 41 (1993), S. 421-451 
    ISSN: 1572-9338
    Keywords: Local search ; approximate algorithms ; heuristics ; hybrid algorithms ; simulated annealing ; tabu search ; vehicle routing problem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract The vehicle routing problem (VRP) under capacity and distance restrictions involves the design of a set of minimum cost delivery routes, originating and terminating at a central depot, which services a set of customers. Each customer must be supplied exactly once by one vehicle route. The total demand of any vehicle must not exceed the vehicle capacity. The total length of any route must not exceed a pre-specified bound. Approximate methods based on descent, hybrid simulated annealing/tabu search, and tabu search algorithms are developed and different search strategies are investigated. A special data structure for the tabu search algorithm is implemented which has reduced notably the computational time by more than 50%. An estimate for the tabu list size is statistically derived. Computational results are reported on a sample of seventeen bench-mark test problems from the literature and nine randomly generated problems. The new methods improve significantly both the number of vehicles used and the total distances travelled on all results reported in the literature.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Annals of operations research 63 (1996), S. 511-623 
    ISSN: 1572-9338
    Keywords: Artificial intelligence ; bibliography ; combinatorial optimization ; constraint logic programming ; evolutionary computation ; genetic algorithms ; greedy random adaptive search procedure ; heuristics ; hybrids ; local search ; metaheuristics ; neural networks ; non-monotonic search strategies ; problem-space method ; simulated annealing ; tabu search ; threshold algorithms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract Metaheuristics are the most exciting development in approximate optimization techniques of the last two decades. They have had widespread successes in attacking a variety of difficult combinatorial optimization problems that arise in many practical areas. This bibliography provides a classification of a comprehensive list of 1380 references on the theory and application of metaheuristics. Metaheuristics include but are not limited to constraint logic programming; greedy random adaptive search procedures; natural evolutionary computation; neural networks; non-monotonic search strategies; space-search methods; simulated annealing; tabu search; threshold algorithms and their hybrids. References are presented in alphabetical order under a number of subheadings.
    Type of Medium: Electronic Resource
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