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nlp.hpp
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nlp.hpp
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#ifndef NLP_HPP
#define NLP_HPP
/**
* @brief SAMU - the potential ancestor of developmental robotics chatter bots
*
* @file nlp.hpp
* @author Norbert Bátfai <[email protected]>
* @version 0.0.1
*
* @section LICENSE
*
* Copyright (C) 2015 Norbert Bátfai, [email protected]
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* @section DESCRIPTION
* SAMU
*
* The main purpose of this project is to allow the evaluation and
* verification of the results of the paper entitled "A disembodied
* developmental robotic agent called Samu Bátfai". It is our hope
* that Samu will be the ancestor of developmental robotics chatter
* bots that will be able to chat in natural language like humans do.
*
*/
#include <locale.h>
#include <stdio.h>
#include "link-grammar/link-includes.h"
#include <string>
#include <vector>
#include <iostream>
class SPOTriplet
{
public:
std::string s;
std::string p;
std::string o;
SPOTriplet ()
{}
SPOTriplet ( std::string &s, std::string &p, std::string &o ) :s ( s ),p ( p ), o ( o )
{}
friend std::ostream & operator<< ( std::ostream & os, const SPOTriplet & t )
{
std::cout << t.s << " " << t.p << " "<< t.o;
return os;
}
const bool operator== ( const SPOTriplet &other ) const
{
if ( s == other.s &&
p == other.p &&
o == other.o )
return true;
else
return false;
}
const bool operator< ( const SPOTriplet &other ) const
{
return s+p+o < other.s+other.p+other.o;
}
const double cmp ( const SPOTriplet &other ) const
{
if ( *this == other )
return 1.0;
else if ( ( s == other.s &&
p == other.p ) ||
( s == other.s &&
o == other.o ) ||
( o == other.o &&
p == other.p ) )
return 2.0/3.0;
else if ( s == other.s ||
p == other.p ||
o == other.o )
return 1.0/3.0;
else
return 0.0;
}
void cut ( )
{
cut ( s );
cut ( p );
cut ( o );
}
void cut ( std::string &s )
{
std::size_t found = s.find ( '.' );
if ( found != std::string::npos )
s.erase ( found );
found = s.find ( '[' );
if ( found != std::string::npos )
s.erase ( found );
}
};
typedef std::vector<SPOTriplet> SPOTriplets;
class NLP
{
public:
NLP()
{
setlocale ( LC_ALL, "en_US.UTF8" );
parse_opts_ = parse_options_create();
dict_ = dictionary_create_lang ( "en" );
if ( !dict_ )
{
std::cerr << "Link grammar dictionary cannot be found." << std::endl ;
}
std::cout << linkgrammar_get_version() << std::endl ;
}
~NLP()
{
dictionary_delete ( dict_ );
parse_options_delete ( parse_opts_ );
}
SPOTriplets sentence2triplets ( const char* );
private:
Dictionary dict_;
Parse_Options parse_opts_;
};
#endif