SYNOPSIS
use TM::Materialized::AsTMa;
my $tm = new TM::Materialized::AsTMa (file => 'test.atm');
$tm->sync_in;
Class::Trait->apply ($tm, 'TM::Analysis');
print Dumper $tm->statistics;
print Dumper $tm->orphanage;
DESCRIPTION
This package contains some topic map analysis functionality.INTERFACE
- statistics
-
This (currently quite limited) function computes a reference to hash containing the
following fields:
-
- "nr_toplets"
- Nr of midlets in the map. This includes ALL midlets for topics and also those for assertions.
- "nr_asserts"
- Nr of assertions in the map.
- "nr_clusters"
- Nr of clusters according to the "cluster" function elsewhere in this document.
-
- orphanage
-
This computes all topics which have either no supertype and also those which have no type. Without
further parameters, it returns a hash reference with the following fields:
-
- "untyped"
- Holds a list reference to all topic ids which have no type.
- "empty"
- Holds a list reference to all topic ids which have no instance.
- "unclassified"
- Holds a list reference to all topic ids which have no superclass.
- "unspecified"
- Holds a list reference to all topic ids which have no subclass.
-
Optionally, a list of the identifiers above can be passed in so that only that particular information is actually returned (some speedup):
my $o = TM::Analysis::orphanage ($tm, 'untyped');
-
- entropy
- This method returns a hash (reference) where the keys are the assertion types and the values are the individual entropies of these assertion types. More frequently used (inflationary) types will have a lower value, very seldomly used ones too. Only those in the middle count most.
COPYRIGHT AND LICENSE
Copyright 20(0[3-68]|10) by Robert Barta, <[email protected]>This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.