/usr/lib/swi-prolog/library/isub.pl is in swi-prolog-nox 7.6.4+dfsg-1build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | /* Part of SWI-Prolog
Author: Jan Wielemaker
E-mail: J.Wielemaker@vu.nl
WWW: http://www.swi-prolog.org
Copyright (c) 2011-2014, VU University Amsterdam
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
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1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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*/
:- module(isub,
[ isub/4 % +Text1, +Text2, +Normalize, -Distance
]).
:- use_foreign_library(foreign(isub)).
/** <module> isub: a string similarity measure
The library(isub) implements a similarity measure between strings, i.e.,
something similar to the _|Levenshtein distance|_. This method is based
on the length of common substrings.
@author Giorgos Stoilos
@see _|A string metric for ontology alignment|_ by Giorgos Stoilos,
2005.
*/
%! isub(+Text1:atomic, +Text2:atomic, +Normalize:bool,
%! -Similarity:float) is det.
%
% Similarity is a measure for the distance between Text1 and
% Text2. E.g.
%
% ==
% ?- isub('E56.Language', 'languange', true, D).
% D = 0.711348.
% ==
%
% If Normalize is =true=, isub/4 applies string normalization as
% implemented by the original authors: Text1 and Text2 are mapped
% to lowercase and the characters "._ " are removed. Lowercase
% mapping is done with the C-library function towlower(). In
% general, the required normalization is domain dependent and is
% better left to the caller. See e.g., unaccent_atom/2.
%
% @param Similarity is a float in the range [0.0..1.0], where 1.0
% means _|most similar|_
:- multifile sandbox:safe_primitive/1.
sandbox:safe_primitive(isub:isub(_,_,_,_)).
|