mlpack_range_search - Online in the Cloud

PROGRAM:

NAME

mlpack_range_search - range search

SYNOPSIS

mlpack_range_search [-h] [-v] [-d string] [-m string] [-l int] [-U double] [-L double] [-N] [-n string] [-M string] [-q string] [-R] [-r string] [--seed int] [-s] [-t string] -V

DESCRIPTION

This program implements range search with a Euclidean distance metric. For a given query
point, a given range, and a given set of reference points, the program will return all of
the reference points with distance to the query point in the given range. This is
performed for an entire set of query points. You may specify a separate set of reference
and query points, or only a reference set -- which is then used as both the reference and
query set. The given range is taken to be inclusive (that is, points with a distance
exactly equal to the minimum and maximum of the range are included in the results).

For example, the following will calculate the points within the range [2, 5] of each point
in 'input.csv' and store the distances in 'distances.csv' and the neighbors in
'neighbors.csv':

$ range_search --min=2 --max=5 --reference_file=input.csv --distances_file=distances.csv
--neighbors_file=neighbors.csv

The output files are organized such that line i corresponds to the points found for query
point i. Because sometimes 0 points may be found in the given range, lines of the output
files may be empty. The points are not ordered in any specific manner.

Because the number of points returned for each query point may differ, the resultant CSV-
like files may not be loadable by many programs. However, at this time a better way to
store this non-square result is not known. As a result, any output files will be written
as CSVs in this manner, regardless of the given extension.

OPTIONS

--distances_file (-d) [string] File to output distances into. Default value ’'.

--help (-h)
Default help info.

--info [string]
Get help on a specific module or option. Default value ''. --input_model_file
(-m) [string] File containing pre-trained range search model. Default value ''.

--leaf_size (-l) [int]
Leaf size for tree building. Default value 20.

--max (-U) [double]
Upper bound in range (if not specified, +inf will be used. Default value 0.

--min (-L) [double]
Lower bound in range. Default value 0.

--naive (-N)
If true, O(n^2) naive mode is used for computation. --neighbors_file (-n) [string]
File to output neighbors into. Default value ’'. --output_model_file (-M) [string]
If specified, the range search model will be saved to the given file. Default value
''.

--query_file (-q) [string]
File containing query points (optional). Default value ''.

--random_basis (-R)
Before tree-building, project the data onto a random orthogonal basis.
--reference_file (-r) [string] File containing the reference dataset. Default value
''.

--seed [int]
Random seed (if 0, std::time(NULL) is used). Default value 0.

--single_mode (-s)
If true, single-tree search is used (as opposed to dual-tree search).

--tree_type (-t) [string]
Type of tree to use: 'kd', 'cover', 'r', ’r-star', 'ball'. Default value 'kd'.

--verbose (-v)
Display informational messages and the full list of parameters and timers at the
end of execution.

--version (-V)
Display the version of mlpack.

ADDITIONAL INFORMATION

ADDITIONAL INFORMATION

For further information, including relevant papers, citations, and theory, For further
information, including relevant papers, citations, and theory, consult the documentation
found at http://www.mlpack.org or included with your consult the documentation found at
http://www.mlpack.org or included with your DISTRIBUTION OF MLPACK. DISTRIBUTION OF
MLPACK.

mlpack_range_search(1)

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