argmax

Argmax in a Keras multiclassifier ANN

Argmax in a Keras multiclassifier ANN Question: I am trying to code a 5 class classifier ANN, and this code return this error: classifier = Sequential() classifier.add(Dense(units=10, input_dim=14, kernel_initializer=’uniform’, activation=’relu’)) classifier.add(Dense(units=6, kernel_initializer=’uniform’, activation=’relu’)) classifier.add(Dense(units=5, kernel_initializer=’uniform’, activation=’softmax’)) classifier.compile(optimizer=’adam’, loss=’categorical_crossentropy’, metrics=[‘accuracy’]) RD_Model = classifier.fit(X_train,y_train, batch_size=10 , epochs=10, verbose=1) File "c:Program FilesPython310libsite-packageskerasbackend.py", line 5119, in categorical_crossentropy target.shape.assert_is_compatible_with(output.shape) ValueError: …

Total answers: 2

Python most efficient way to find index of maximum in partially changed array

Python most efficient way to find index of maximum in partially changed array Question: I have a complex-valued array of about 750000 elements for which I repeatedly (say 10^6 or more times) update 1000 (or less) different elements. In the absolute-squared array I then need to find the index of the maximum. This is part …

Total answers: 1

numpy: what is the logic of the argmin() and argmax() functions?

numpy: what is the logic of the argmin() and argmax() functions? Question: I can not understand the output of argmax and argmin when use with the axis parameter. For example: >>> a = np.array([[1,2,4,7], [9,88,6,45], [9,76,3,4]]) >>> a array([[ 1, 2, 4, 7], [ 9, 88, 6, 45], [ 9, 76, 3, 4]]) >>> a.shape …

Total answers: 5

Find row where values for column is maximal in a pandas DataFrame

Find row where values for column is maximal in a pandas DataFrame Question: How can I find the row for which the value of a specific column is maximal? df.max() will give me the maximal value for each column, I don’t know how to get the corresponding row. Asked By: lazy1 || Source Answers: Use …

Total answers: 13