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O. Average-number, 17 2.3.5 Number of lightpath changes

.. Mixed-integer-linear-programming-model, 19 3.1.1 Source formulation, p.24

.. Model, 24 3.2.1 Technological aspects, p.28

C. Metrics, 41 4.3.1 Parameters chosen 41 4.3.2 Computation time, p.47

.. Heuristic-comparisons, 51 4.5.1 Performance Analysis, p.53

.. Mathematical, 60 5.1.1 Vectorial optimization

B. Mathematical-model, 64 5.2.1 Weighted objectives method ?-restricted method, p.69

C. Virtual-topology, 101 A.3 Routing constraints, p.102

.. Objective, 102 A.5.1 Number of optical links 102 A.5.2 Number of lightpaths, 103 A.5.5 Number of reconfigurations . . . . . . . . . . . . . . . 103 xlvii CONTENTS B Mono-objective optimization: Computational results 105

C. Metrics, 109 B.2.1 Cut performance, p.111

.. Results-with-the-?-restricted-method, 120 xlviii List of Figures 1.1 European telecommunication market

C. .. Heuristics, 54 xlix LIST OF FIGURES 4.24 SN2 and Cost239 instances, solution value for metric 55 4.25 SN2 and Cost239 instances, solution value for metric 55 4.26 SN2 and Cost239 instances, solution value for metric C . . . 55 4.27 Cost239 instance, solution value for metric instance, solution value for metric, Long N50 instance, p.62

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