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In the section of the talk "how do we pick the wights of the neural net" the speaker states: "the error then is going to be difference between what the classif
by bogomipz 8y ago
In the section of the talk "how do we pick the wights of the neural net" the speaker states:
"the error then is going to be difference between what the classification of the neural net outputs and what the classification or the oracle will be."
Could someone say what is an "oracle" in this context?
He says this at 10:31 in the talk.
- dgacmu 8y agoThe oracle = magic box that always gives the correct answer.
- bogomipz 8y agoThank you. Googling offered very little help as it just returned results regarding Oracle the company and their ML service offerings. Cheers.
- jacques_chester 8y agoThe oracle in this case is a piece of software that compares the neural net's outputs with pre-classified data. A test oracle "magically" knows the truth, from the perspective of the system, is the idea. Sometimes oracles don't even exist but can be useful as a conceptual tool in deriving some other finding -- such as a proof by contradiction.
- meken 8y agoThe oracle is each digit that's tagged to each digit image, which exists (in the case of MNIST) because someone sat down and tagged every image.