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NeuralNetwork

Šolski projekt v katerem bom naredil svojo nevronsko mrežo brez uporabe že narejenih knjižnic (razen Numpy za hitrejše množenje matrik).

Opis

Vsa koda za nevronsko mrežo, ki jo uporablja demo.ipynb je v ./src.

Instalacija

pip install -r requirements.txt

(Vbistvu je za dejanski network potrebno naložiti samo Numpy zato je bolj relevanten za demo.ipynb, kjer sem uporabljal keras, da sem naložil MNIST databazo.)

Uporaba

net = Network()

Da pokličemo Network.

net.addInputLayer(dim_0)

Da dodamo nov input layer (to je potrebno preden kličemo .addLayer()).

net.addLayer(dim_L,<kernel>)

Da dodamo celotno povezan hidden (ali zadnji) layer. <kernel> je eden izmed kernelov. Ko kličemo funkcijo dobimo kateri kerneli so na voljo - več podatkov v README.md v ./src.

net.train(X,Y)

kjer sta X,Y vhodna in izhodna vektorja (iz databaze na kateri treniramo). y.shape[1] mora biti enaka dim_0. x.shape[1] mora biti enaka dim_L.

net.predict(x)

S tem pridemo do dejanskega predloga mreže (vizualno prikazano v demotu).

Uspeh

Nauči se:

mnist_784 databaza od scikit-learn

90% accuracy po 10 epochih.

Beware

Ni implementiranega dropout-a tako, da zna priti do overfita.

Viri in literatura

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