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    ATMOS
    2008
    101views Optimization» more  ATMOS 2008»
    Robust Line Planning under Unknown Incentives and Elasticity of Frequencies
    14 years 2 months ago
    Robust Line Planning under Unknown Incentives and Elasticity of Frequencies
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    The problem of robust line planning requests for a set of origin-destination paths (lines) along with their traffic rates (frequencies) in an underlying railway network infrastruct...
    Spyros C. Kontogiannis, Christos D. Zaroliagis
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    ATMOS
    2007
    129views Optimization» more  ATMOS 2007»
    Solving a Real-World Train Unit Assignment Problem
    14 years 2 months ago
    Solving a Real-World Train Unit Assignment Problem
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    We face a real-world train unit assignment problem for an operator running trains in a regional area. Given a set of timetabled train trips, each with a required number of passenge...
    Valentina Cacchiani, Alberto Caprara, Paolo Toth
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    ATMOS
    2008
    92views Optimization» more  ATMOS 2008»
    Towards Solving Very Large Scale Train Timetabling Problems by Lagrangian Relaxation
    14 years 2 months ago
    Towards Solving Very Large Scale Train Timetabling Problems by Lagrangian Relaxation
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    Frank Fischer, Christoph Helmberg, Jürgen Jan...
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    ATMOS
    2007
    94views Optimization» more  ATMOS 2007»
    Maintenance of Multi-level Overlay Graphs for Timetable Queries
    14 years 2 months ago
    Maintenance of Multi-level Overlay Graphs for Timetable Queries
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    In railways systems the timetable is typically represented as a weighted digraph on which itinerary queries are answered by shortest path algorithms, usually running Dijkstra’s a...
    Francesco Bruera, Serafino Cicerone, Gianlorenzo D...
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    ATMOS
    2008
    112views Optimization» more  ATMOS 2008»
    Dynamic Algorithms for Recoverable Robustness Problems
    14 years 2 months ago
    Dynamic Algorithms for Recoverable Robustness Problems
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    Abstract. Recently, the recoverable robustness model has been introduced in the optimization area. This model allows to consider disruptions (input data changes) in a unified way, ...
    Serafino Cicerone, Gabriele Di Stefano, Michael Sc...
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    ATMOS
    2007
    119views Optimization» more  ATMOS 2007»
    Models for Railway Track Allocation
    14 years 2 months ago
    Models for Railway Track Allocation
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    The optimal track allocation problem (OPTRA) is to find, in a given railway network, a conflict free set of train routes of maximum value. We study two types of integer programmi...
    Ralf Borndörfer, Thomas Schlechte
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    ATMOS
    2008
    103views Optimization» more  ATMOS 2008»
    IP-based Techniques for Delay Management with Priority Decisions
    14 years 2 months ago
    IP-based Techniques for Delay Management with Priority Decisions
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    Delay management is an important issue in the daily operations of any railway company. The task is to update the planned timetable to a disposition timetable in such a way that the...
    Michael Schachtebeck, Anita Schöbel
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    ATMOS
    2007
    84views Optimization» more  ATMOS 2007»
    Experimental Study on Speed-Up Techniques for Timetable Information Systems
    14 years 2 months ago
    Experimental Study on Speed-Up Techniques for Timetable Information Systems
    Download  www.math.tu-berlin.de
    Reinhard Bauer, Daniel Delling, Dorothea Wagner
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    ATMOS
    2008
    118views Optimization» more  ATMOS 2008»
    Recoverable Robustness for Railway Rolling Stock Planning
    14 years 2 months ago
    Recoverable Robustness for Railway Rolling Stock Planning
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    Abstract. In this paper we explore the possibility of applying the notions of Recoverable Robustness and Price of Recoverability (introduced by [5]) to railway rolling stock planni...
    Valentina Cacchiani, Alberto Caprara, Laura Galli,...
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    ATMOS
    2008
    82views Optimization» more  ATMOS 2008»
    Line Planning on Paths and Tree Networks with Applications to the Quito Trolebús System
    14 years 2 months ago
    Line Planning on Paths and Tree Networks with Applications to the Quito Trolebús System
    Download  opus.kobv.de
    Luis M. Torres, Ramiro Torres, Ralf Borndörfe...
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