Research Article

ILP Model and Relaxation-Based Decomposition Approach for Incremental Topology Optimization in p-Cycle Networks

Table 1

Comparison of normalized total cost between decomposition method and exact method.

NetworksNormalized total cost
Percentage difference
Exact (full ILP) methodDecomposition method

20n40-39s 1 1.000137 0.013776
25n50-46s 1.76266 1.762942 0.01603
30n60-57s 2.834284 2.833077 −0.0426
35n75-70s 3.634334 3.633292 −0.02866
40n80-78s 4.468206 4.466802 −0.03142