------------------------------------------------------------
ann_test: Version 1.0
Copyright: David M. Mount and Sunil Arya.
Latest Revision: Mar 1, 2005.
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validate = on (Warning: this may slow execution time.)
stats = query_stats
[Read Data Points:
data_size = 5000
file_name = test2-data.pts
dim = 8
]
[Read Query Points:
query_size = 100
file_name = test2-query.pts
dim = 8
]
[Build ann-structure:
split_rule = suggest
shrink_rule = none
data_size = 5000
dim = 8
bucket_size = 1
process_time = 0.18 sec
(Structure Statistics:
n_nodes = 9999 (opt = 10000, best if < 100000)
n_leaves = 5000 (0 contain no points)
n_splits = 4999
n_shrinks = 0
empty_leaves = 0 percent (best if < 50 percent)
depth = 17 (opt = 12, best if < 196)
avg_aspect_ratio = 2.03396 (best if < 20)
)
]
(Computing true nearest neighbors for validation. This may take time.)
[Run Queries:
query_size = 100
dim = 8
search_method = standard
epsilon = 0
near_neigh = 3
true_nn = 13
query_time = 0.0008 sec/query (biased by perf measurements)
(Performance stats: [ mean : stddev ]< min , max >
leaf_nodes = [ 269.6 : 154.1 ]< 68 , 1046 >
splitting_nodes = [ 448.2 : 259.2 ]< 100 , 1858 >
shrinking_nodes = [ 0 : 0 ]< 0 , 0 >
total_nodes = [ 717.8 : 412.6 ]< 168 , 2904 >
points_visited = [ 269.6 : 154.1 ]< 68 , 1046 >
coord_hits/pt = [ 0.1975 : 0.1075 ]< 0.0446 , 0.6974 >
floating_ops_(K) = [ 8.492 : 4.716 ]< 1.939 , 32.61 >
average_error = [ 0 : 0 ]< 0 , 0 >
rank_error = [ 0 : 0 ]< 0 , 0 >
)
]
[Run Queries:
query_size = 100
dim = 8
search_method = priority
epsilon = 0
near_neigh = 3
true_nn = 13
query_time = 0.0011 sec/query (biased by perf measurements)
(Performance stats: [ mean : stddev ]< min , max >
leaf_nodes = [ 237.7 : 131.6 ]< 68 , 801 >
splitting_nodes = [ 408.1 : 227.7 ]< 100 , 1398 >
shrinking_nodes = [ 0 : 0 ]< 0 , 0 >
total_nodes = [ 645.8 : 358.5 ]< 168 , 2149 >
points_visited = [ 237.7 : 131.6 ]< 68 , 801 >
coord_hits/pt = [ 0.1679 : 0.08993 ]< 0.0472 , 0.5492 >
floating_ops_(K) = [ 10.83 : 6.344 ]< 2.638 , 38.3 >
average_error = [ 0 : 0 ]< 0 , 0 >
rank_error = [ 0 : 0 ]< 0 , 0 >
)
]
[Run Queries:
query_size = 100
dim = 8
search_method = standard
epsilon = 0.1
near_neigh = 3
true_nn = 13
query_time = 0.0006 sec/query (biased by perf measurements)
(Performance stats: [ mean : stddev ]< min , max >
leaf_nodes = [ 200.9 : 115.8 ]< 51 , 762 >
splitting_nodes = [ 344.9 : 202.4 ]< 77 , 1407 >
shrinking_nodes = [ 0 : 0 ]< 0 , 0 >
total_nodes = [ 545.9 : 317.4 ]< 128 , 2169 >
points_visited = [ 200.9 : 115.8 ]< 51 , 762 >
coord_hits/pt = [ 0.1548 : 0.08517 ]< 0.0348 , 0.5494 >
floating_ops_(K) = [ 6.606 : 3.703 ]< 1.513 , 25.14 >
average_error = [ 0 : 0 ]< 0 , 0 >
rank_error = [ 0 : 0 ]< 0 , 0 >
)
]
[Run Queries:
query_size = 100
dim = 8
search_method = priority
epsilon = 0.1
near_neigh = 3
true_nn = 13
query_time = 0.0007 sec/query (biased by perf measurements)
(Performance stats: [ mean : stddev ]< min , max >
leaf_nodes = [ 176.1 : 101.1 ]< 49 , 629 >
splitting_nodes = [ 314.3 : 186.9 ]< 77 , 1285 >
shrinking_nodes = [ 0 : 0 ]< 0 , 0 >
total_nodes = [ 490.4 : 286.6 ]< 128 , 1914 >
points_visited = [ 176.1 : 101.1 ]< 49 , 629 >
coord_hits/pt = [ 0.1309 : 0.07112 ]< 0.0374 , 0.4332 >
floating_ops_(K) = [ 8.205 : 4.999 ]< 2.032 , 33.27 >
average_error = [ 0 : 0 ]< 0 , 0 >
rank_error = [ 0 : 0 ]< 0 , 0 >
)
]
[Run Queries:
query_size = 100
dim = 8
search_method = standard
epsilon = 0.5
near_neigh = 3
true_nn = 13
query_time = 0.0002 sec/query (biased by perf measurements)
(Performance stats: [ mean : stddev ]< min , max >
leaf_nodes = [ 83.07 : 46.06 ]< 23 , 264 >
splitting_nodes = [ 163.4 : 94.86 ]< 42 , 512 >
shrinking_nodes = [ 0 : 0 ]< 0 , 0 >
total_nodes = [ 246.5 : 140.2 ]< 67 , 776 >
points_visited = [ 83.07 : 46.06 ]< 23 , 264 >
coord_hits/pt = [ 0.0765 : 0.03992 ]< 0.0182 , 0.2192 >
floating_ops_(K) = [ 3.224 : 1.734 ]< 0.891 , 9.572 >
average_error = [ 0.0009039 : 0.009619 ]< 0 , 0.1516 >
rank_error = [ 0 : 0 ]< 0 , 0 >
)
]
[Run Queries:
query_size = 100
dim = 8
search_method = priority
epsilon = 0.5
near_neigh = 3
true_nn = 13
query_time = 0.0004 sec/query (biased by perf measurements)
(Performance stats: [ mean : stddev ]< min , max >
leaf_nodes = [ 69.72 : 38.29 ]< 21 , 246 >
splitting_nodes = [ 146.8 : 81.69 ]< 40 , 475 >
shrinking_nodes = [ 0 : 0 ]< 0 , 0 >
total_nodes = [ 216.5 : 118.8 ]< 65 , 721 >
points_visited = [ 69.72 : 38.29 ]< 21 , 246 >
coord_hits/pt = [ 0.06206 : 0.03155 ]< 0.0182 , 0.194 >
floating_ops_(K) = [ 3.608 : 1.989 ]< 1.126 , 12.28 >
average_error = [ 0.001425 : 0.011 ]< 0 , 0.1516 >
rank_error = [ 0 : 0 ]< 0 , 0 >
)
]