b2b53380f4
In the sampling step, the --no-weighting switch disables the equivalence-class weighting by using a weight of one instead of the equivalence-class size. This is usually not a good idea, and should only be used for demonstration purposes, or if the fault model requires weight-less sampling. Change-Id: Id903d1924c6ecbcd217815aa5ce9271560130071
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
#ifndef __FESAMPLING_PRUNER_H__
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#define __FESAMPLING_PRUNER_H__
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#include "Pruner.hpp"
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#include "util/CommandLine.hpp"
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///
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/// FESamplingPruner: implements sampling with Fault Expansion
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///
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/// The FESamplingPruner implements the fault-expansion variance reduction
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/// technique (FE-VRT) as described in: Smith, D. Todd and Johnson, Barry W.
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/// and Andrianos, Nikos and Profeta, III, Joseph A., "A variance-reduction
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/// technique via fault-expansion for fault-coverage estimation" (1997),
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/// 366--374.
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///
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class FESamplingPruner : public Pruner {
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fail::CommandLine::option_handle SAMPLESIZE;
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fail::CommandLine::option_handle USE_KNOWN_RESULTS;
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fail::CommandLine::option_handle NO_WEIGHTING;
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unsigned m_samplesize;
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bool m_use_known_results, m_weighting;
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public:
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FESamplingPruner() : m_samplesize(0), m_use_known_results(false), m_weighting(true) { }
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virtual std::string method_name() { return "FESampling"; }
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virtual bool commandline_init();
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virtual bool prune_all();
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void getAliases(std::deque<std::string> *aliases) {
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aliases->push_back("FESamplingPruner");
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aliases->push_back("sampling");
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}
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private:
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bool sampling_prune(const fail::Database::Variant& variant);
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};
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#endif
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