[OTDev] statisticsSupported / Algorithm
Nina Jeliazkova nina at acad.bgWed Dec 16 09:25:05 CET 2009
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Hello All, >>> - Does the Validation service rely on such functionality, or calculates the >>> relevant statistics itself ? >>> >>> >> No, here is my (validation) point of view: >> >> Prediction models do not calculate prediction statistics on their own, >> they just make predictions. >> You can use the validation service to get the RMSE of a regression >> model on some dataset. The corresponding REST operation is the third >> command in the API >> (http://www.opentox.org/dev/apis/api-1.1/Validation). The RMSE as well >> as other regression statistics are available in the validation object >> which is returned. >> > > Fabian and I have thought about that and we think that the fact that our > algorithms expose supported statistics might be due to the fact we > normally work. Using the same implementation for model building and > validation. But in OpenTox that is not the case. We have separate > services for model building and validation. Consequently, the algorithms > building the model does not have to support any statistics. They are as > Martin points out correctly calculated in the validation service. The > only thing that has to be exposed (maybe) is, what kind of statistics > can be calculated on the predictions. Classification or regression > stats. > So in our opinion we could get rid of the "statisticsSupported" stuff. > We may expose if the algorithm is classification or regression but that > should be covered by the algorithm ontology. > > Do we all agree to remove "statisticsSupported" field from Algorithm RDF representation? Best regards, Nina > Opinions? > > best regards > Tobias > > >
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