Adds two randomized equivalence oracles based on the W method #40
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Maybe it is a good time to add better support for testing oracles
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See #41 for some thought on testing equivalence oracles. |
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I would like to keep the naming of the classes consistent for now. If we remove the suffix "EQOracle", we would have to do it everywhere and would end up with things like "new SampleSet(...)" and this does not really reveal what the class is doing. Beside that, I don't see a reason why this should not be merged. |
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I renamed the classes to end on EQOracle. |
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Here is my implementation of the randomized W/Wp method. It is more successful in finding counter examples than the current W/Wp methods in learnlib, but they do not provide any completeness guarantees. (Of course it is also more efficient than just a random walk.)
I have some concerns with the current state of affairs. In particular I found it annoying that I had to implement execution of tests and a bound in each equivalence oracle. I think that this can be decoupled, in order to make more generic testing oracles which can be reused. I will open a separate issue to discuss this.
In the meantime, this patch works, and provides a nice utility. I noticed that it is not consistent with the current naming, but I don't really like the current naming (all oracles ends with
EQracle...)