presage 0.9.1
recencyPredictor.h
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1
2/******************************************************
3 * Presage, an extensible predictive text entry system
4 * ---------------------------------------------------
5 *
6 * Copyright (C) 2008 Matteo Vescovi <matteo.vescovi@yahoo.co.uk>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 *
22 **********(*)*/
23
24
25#ifndef PRESAGE_RECENCYPREDICTOR
26#define PRESAGE_RECENCYPREDICTOR
27
28#include "predictor.h"
29#include "../core/logger.h"
30#include "../core/dispatcher.h"
31
64class RecencyPredictor : public Predictor, public Observer {
65public:
68
69 virtual Prediction predict (const size_t size, const char** filter) const;
70
71 virtual void learn (const std::vector<std::string>& change);
72
73 virtual void update (const Observable* variable);
74
75private:
76 void set_lambda (const std::string& value);
77 void set_n_0 (const std::string& value);
78 void set_cutoff_threshold (const std::string& value);
79
80 std::string LOGGER;
81 std::string LAMBDA;
82 std::string N_0;
83 std::string CUTOFF_THRESHOLD;
84
85 double lambda;
86 double n_0;
88
90
91};
92
93#endif // PRESAGE_RECENCYPREDICTOR
Tracks user interaction and context.
virtual void learn(const std::vector< std::string > &change)
std::string CUTOFF_THRESHOLD
Dispatcher< RecencyPredictor > dispatcher
virtual Prediction predict(const size_t size, const char **filter) const
Generate prediction.
void set_n_0(const std::string &value)
virtual void update(const Observable *variable)
void set_lambda(const std::string &value)
void set_cutoff_threshold(const std::string &value)