Discrete Location Problems
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Competitive p-median
problem
Instances on Euclidean plane
Let I = J, n = m = 100 for all test instances. The elements of the matrix (gij) are Euclidean distances between points i and j in a two dimensional Euclidean plane. The points are chosen at random with uniform distribution in a square 7000´7000.
Table 1 shows the upper and lower bounds for the instances. The first column indicates the codes of the instances and allows one to get the coordinates of the points in txt-format.
All instances with wj=1: COMP(100).zip 14 Kb All instances with 1 ≤ wj ≤ 200: COMP100(W).zip 15 Kb
The tables contain optimal solutions or the best found solutions. For instances with wj∈[1, 200] we show also the value of objective function in percents of the total market share.
n=m=100 p =r =5
Table 1. wj = 1
Code Optimal value Optimal solution 47 Leader: 11 13 38 68 91
Follower: 3 7 15 40 8848 Leader: 2 6 10 13 51
Follower: 1 21 24 28 5645 Leader: 15 32 54 55 85
Follower: 7 12 33 70 8447 Leader: 40 44 49 82 90
Follower: 6 15 26 42 7747 Leader: 22 23 62 84 93
Follower: 36 39 41 64 6747 Leader: 30 53 85 91 98
Follower: 1 12 43 48 9047 Leader: 43 62 65 77 86
Follower: 4 59 70 75 9548 Leader: 79 11 18 37 30
Follower: 1 46 51 84 8747 Leader: 15 73 36 81 92
Follower: 25 33 35 50 8547 Leader: 3 67 48 35 10
Follower: 14 15 38 49 91
Table 2 1 ≤ wj ≤ 200
Code Optimal value Optimal solution 4139 (47,63%) Leader: 11 13 38 68 94
Follower: 40 42 78 88 98211 4822 (45,84%) Leader: 1 49 60 82 93
Follower: 11 15 51 57 81311 4215 (45,08%) Leader: 15 33 54 58 78
Follower: 7 19 38 47 63411 4678 (47,12%) Leader: 6 7 40 42 82
Follower: 54 56 90 91 95511 4599 (44,89%) Leader: 22 61 84 91 93
Follower: 35 60 62 65 74611 4483 (47,10%) Leader: 17 19 30 47 73
Follower: 32 53 58 70 85711 5153 (46,01%) Leader: 18 62 65 79 90
Follower: 28 33 40 52 99811 4404 (46,08%) Leader: 11 45 51 55 84
Follower: 10 32 54 69 77911 4700 (45,21%) Leader: 7 46 87 95 99
Follower: 12 17 55 81 831011 4923 (48,14%) Leader: 3 11 14 15 89
Follower: 42 49 68 72 93
n=m=100 p =r =10
Table 3 wj = 1
Code
Optimal value
Optimal solution 50
Leader: 2 3 15 18 27 31 40 44 64 91
Follower: 4 7 11 24 48 50 53 62 74 85
49
Leader: 5 6 19 28 29 31 32 41 49 97
Follower: 11 25 33 35 45 47 59 61 64 93
48
Leader: 16 31 54 59 60 70 71 72 81 82
Follower: 1 7 21 29 35 41 48 84 86 88
49
Leader: 8 15 28 34 40 41 64 79 90 92
Follower: 16 23 24 26 44 60 75 80 84 93
48
Leader: 6 19 21 35 36 40 42 58 61 89
Follower: 5 15 25 30 49 52 53 55 74 76
47
Leader: 11 17 45 47 61 72 76 80 82 90
Follower: 10 19 30 68 75 79 81 86 87 98
51
Leader: 1 40 42 53 58 66 77 85 86 95
Follower: 15 18 25 28 46 50 51 54 72 83
48
Leader: 3 20 22 44 54 58 59 75 77 88
Follower: 10 11 15 38 47 53 56 76 98 99
49
Leader: 7 25 27 50 52 63 81 85 89 99
Follower: 6 9 12 14 26 40 53 55 58 83
49
Leader: 18 29 44 46 52 58 64 78 82 90
Follower: 13 21 35 45 56 70 73 74 85 100
Table 4 1 ≤ wj ≤ 200
Code Optimal value Optimal solution 4361 (50%)
Leader: 2 4 15 18 32 44 64 74 85 91
Follower: 6 9 29 38 43 50 53 55 67 82211 5310 (50%) Leader: 5 8 10 14 28 51 54 67 75 93
Follower: 7 34 40 47 52 57 65 86 92 94311 4483 (48%) Leader: 4 18 29 33 35 38 51 67 70 94
Follower: 16 34 36 50 58 61 63 84 86 89411 4994 (50%) Leader: 8 11 12 15 28 46 56 62 79 92
Follower: 24 26 29 38 49 50 70 75 85 100511 4906 (48%) Leader: 5 9 12 27 35 38 40 42 89 99
Follower: 7 24 30 31 48 53 58 61 74 82611 4595 (48%) Leader: 6 7 19 22 45 47 60 72 76 85
Follower: 25 27 28 35 55 65 91 92 97 98711 5586 (50%) Leader: 4 39 40 46 53 66 77 79 86 95
Follower: 2 18 22 28 57 67 70 72 87 100811 4609 (48%) Leader: 3 11 43 58 65 79 82 84 85 98
Follower: 1 4 23 27 29 34 38 40 44 60911 5302 (51%) Leader: 7 14 19 24 25 32 33 64 81 89
Follower: 9 13 26 44 46 55 85 87 90 921011 5005 (49%) Leader: 3 11 45 60 64 68 74 78 90 96
Follower: 12 21 30 35 53 55 56 76 85 87
n=m=100 p =r =15
Table 5 1 ≤ wj ≤ 200
Code
Lower bounds
Best found solution
4596 (52,9%) Leader: 6 13 14 18 26 32 37 38 42 74 79 85 90 91 100
Follower: 3 7 8 19 23 27 28 49 50 52 53 56 83 87 96211 5373 (51,1%) Leader: 5 10 18 28 32 33 38 41 54 67 75 79 86 93 95
Follower: 7 25 30 40 51 53 56 62 76 77 81 82 92 94 99311 4800 (51,3%) Leader: 4 17 18 21 24 29 33 35 44 51 67 68 70 94 95
Follower: 23 26 28 36 39 41 46 47 49 63 81 86 88 96 99411 5064 (51,0%) Leader: 8 12 15 19 21 28 29 56 62 64 65 87 89 92 100
Follower: 2 7 26 46 49 51 52 68 74 82 84 85 91 95 97511 5131 (50,1%) Leader: 2 5 6 30 35 40 42 61 63 66 71 75 76 89 99
Follower: 7 8 9 12 17 21 24 33 38 45 53 54 70 82 93611 4881 (51,3%) Leader: 5 17 19 22 25 45 60 64 68 73 78 82 85 92 97
Follower: 1 8 10 11 13 16 21 34 39 58 61 63 76 77 98711 5827 (52,0%) Leader: 4 9 22 24 31 42 46 50 66 77 79 86 87 94 97
Follower: 1 8 11 13 25 37 39 53 64 69 74 78 89 95 100811 4675 (48,9%) Leader: 2 11 15 23 29 43 67 68 69 72 78 79 84 85 100
Follower: 3 6 19 24 26 34 44 50 52 60 71 75 82 95 98911 5158 (49,6%) Leader: 13 19 25 34 44 55 76 77 78 85 86 87 89 90 95
Follower: 4 9 14 21 29 33 35 37 43 45 46 49 53 63 981011 5195 (50,8%) Leader: 3 6 10 12 23 35 45 58 60 64 70 71 87 90 100
Follower: 11 13 15 18 24 32 33 42 44 52 53 55 76 78 85
n=m=100 p =r =20
Table 6 1 ≤ wj ≤ 200
Code
Lower bounds
Best found solution
4512 (51,93%) Leader: 7 13 14 18 26 28 32 37 42 52 56 60 64 67 74 79 90 91 96 100
Follower: 2 5 8 11 15 23 29 40 45 50 51 54 55 68 76 77 84 87
211 5432 (51,63%) Leader: 5 10 23 25 32 33 35 40 41 44 53 54 55 61 79 82 86 88 89 95
Follower: 1 4 7 11 22 31 34 36 42 47 48 50 59 70 72 75 81 96 99 100
311 4893 (52,33%) Leader: 4 17 21 22 35 39 41 49 51 58 63 68 76 81 83 84 86 90 94 95
Follower: 7 9 14 18 20 23 28 29 33 36 40 44 46 69 79 82 89 93 96 100
411 5209 (52,47%) Leader: 4 7 12 15 21 24 42 50 51 54 56 62 64 65 80 85 89 91 93 96
Follower: 8 10 17 19 20 23 26 28 29 44 46 55 67 76 78 79 84 92 97 100
511 5334 (52,07%) Leader: 2 7 9 13 21 33 34 35 40 45 51 53 63 66 71 75 76 82 94 99
Follower: 4 5 6 12 14 26 30 39 43 47 49 50 61 73 74 85 88 89 93 100
611 4952 (52,03%) Leader: 5 16 17 19 23 25 45 46 49 60 64 65 68 69 73 78 85 88 92 97
Follower: 4 7 8 11 13 14 18 20 27 34 35 36 39 61 74 77 82 86 91 98
711 5893 (52,62%) Leader: 2 9 13 19 22 24 31 37 39 42 46 50 64 66 72 77 79 86 87 97
Follower: 4 5 6 8 11 17 18 25 35 40 53 57 60 63 65 71 74 78 89 94
811 4858 (50,83%) Leader: 2 3 6 15 23 24 29 31 35 38 43 47 48 68 72 74 75 78 82 94
Follower: 11 34 40 44 45 49 50 52 56 57 58 60 67 69 85 87 88 91 93 97
911 5459 (52,51%) Leader: 7 13 16 19 21 27 43 45 46 49 55 58 62 65 77 84 85 87 92 96
Follower: 3 5 14 15 22 23 24 32 35 38 41 53 63 76 82 83 86 89 95 98
1011 5399 (52,8%) Leader: 5 6 12 18 23 30 34 45 49 58 60 64 70 71 80 87 90 92 96 100
Follower: 3 4 11 14 15 19 24 31 33 35 42 52 59 63 67 72 76 78 81 94
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Competitive p-median problem
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