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46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
//
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// ConfidenceCounter.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 21/01/2018.
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// Copyright © 2018 Thomas Harte. All rights reserved.
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//
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#ifndef ConfidenceCounter_hpp
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#define ConfidenceCounter_hpp
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#include "ConfidenceSource.hpp"
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namespace DynamicAnalyser {
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/*!
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Provides a confidence source that calculates its probability by virtual of a history of events.
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The initial value of the confidence counter is 0.5.
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*/
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class ConfidenceCounter: public ConfidenceSource {
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public:
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/*! @returns The computed probability, based on the history of events. */
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float get_probability() override;
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/*! Records an event that implies this is the appropriate class — pushes probability up towards 1.0. */
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void add_hit();
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/*! Records an event that implies this is not the appropriate class — pushes probability down towards 0.0. */
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void add_miss();
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/*!
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Records an event that provides no strong evidence either way — one that
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could be a hit but could be a miss — pushes probability up or down towards 0.5.
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*/
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void add_equivocal();
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private:
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int hits_ = 1;
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int misses_ = 1;
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};
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}
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#endif /* ConfidenceCounter_hpp */
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