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 
64 class RecencyPredictor : public Predictor, public Observer {
65 public:
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 
75 private:
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
RecencyPredictor::set_n_0
void set_n_0(const std::string &value)
Definition: recencyPredictor.cpp:65
predictor.h
RecencyPredictor
Definition: recencyPredictor.h:64
Observer
Definition: observer.h:34
RecencyPredictor::N_0
std::string N_0
Definition: recencyPredictor.h:82
RecencyPredictor::dispatcher
Dispatcher< RecencyPredictor > dispatcher
Definition: recencyPredictor.h:89
RecencyPredictor::RecencyPredictor
RecencyPredictor(Configuration *, ContextTracker *, const char *)
Definition: recencyPredictor.cpp:29
Prediction
Definition: prediction.h:47
RecencyPredictor::learn
virtual void learn(const std::vector< std::string > &change)
Definition: recencyPredictor.cpp:126
Predictor
Definition: predictor.h:46
ContextTracker
Tracks user interaction and context.
Definition: contextTracker.h:155
RecencyPredictor::set_cutoff_threshold
void set_cutoff_threshold(const std::string &value)
Definition: recencyPredictor.cpp:72
RecencyPredictor::CUTOFF_THRESHOLD
std::string CUTOFF_THRESHOLD
Definition: recencyPredictor.h:83
RecencyPredictor::update
virtual void update(const Observable *variable)
Definition: recencyPredictor.cpp:129
RecencyPredictor::cutoff_threshold
size_t cutoff_threshold
Definition: recencyPredictor.h:87
Configuration
Definition: configuration.h:36
RecencyPredictor::n_0
double n_0
Definition: recencyPredictor.h:86
RecencyPredictor::lambda
double lambda
Definition: recencyPredictor.h:85
RecencyPredictor::LOGGER
std::string LOGGER
Definition: recencyPredictor.h:80
RecencyPredictor::~RecencyPredictor
~RecencyPredictor()
Definition: recencyPredictor.cpp:54
Observable
Definition: observable.h:37
Dispatcher< RecencyPredictor >
RecencyPredictor::set_lambda
void set_lambda(const std::string &value)
Definition: recencyPredictor.cpp:59
RecencyPredictor::predict
virtual Prediction predict(const size_t size, const char **filter) const
Generate prediction.
Definition: recencyPredictor.cpp:79
RecencyPredictor::LAMBDA
std::string LAMBDA
Definition: recencyPredictor.h:81