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Questions tagged [keras-layer]

1512 questions
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Problems with input shapes at finetuning VGG with Keras

I'm trying to finetune the last layer of the VGG-16. Here is the part of the code where i make the new model: def train2false(model): for layer in model.layers: layer.trainable = False return model def…
Eric
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Create new merge layer operation for Keras

I would like to create my own operations to merge networks. So I've taken a look to the code, and I modified engine/topology.py to create my new operation. I didn't modified layers/wrappers.py because it's only for RNN and when I modify it I get an…
FiReTiTi
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Why does keras function "expand_dims" change the type?

I'm using keras with a theano backend. Now I have a variable x, which is an theano tensor with a type field "TensorType(float32, 3D)". I added from keras import backend as K at the beginning of my file. Then I wrote: x = K.expand_dims(x,…
ptr
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How to classify sentences using word2vec and keras?

I have 2 lists of sentences. First list contains different questions, second contains different statements. Little example: 1st list: [ "What are cultures that are associated with core values?", "How do bumblebees fly?", "It is possible…
Dmytro Nalyvaiko
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Can I use a neural network on a linear regression using Keras? If yes , How?

I'm having difficulties setting up a NN in Keras. Please help me! This is my code and I'm getting random values every time when I predict. model = Sequential() layer1 = Dense(5, input_shape =…
vermanil
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Merge layer keras with tensorflow backend

I wanted to merge two sequential models into one using a Merge layer but it is showing me an error. I am working with images, with size 128x128 (RGB image) and batch size is 32. The error is: ValueError: The model expects 3 input arrays, but only…
Rapa
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Keras Autoencoders - How to visualize the values of the hidden layer?

I am trying to do a project where the values of hidden layers play a pivotal role. I am trying to use a sample autoencoder from this tutorial, https://blog.keras.io/building-autoencoders-in-keras.html I am able to do the gradient descent and it is…
Prudhvi Raj
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While I am training a network in Keras+Theano, it is giving error.

I was trying to train a network in keras with theano backed. I am beginner in keras and theano. It is showing a lot of error, could you please if someone knows how to solve it, please share it here? train images/masks shape: (20, 1, 565, 565) train…
S.EB
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Can't add a LSTM layer to model

I'm using python 3.5, and here are some packages that are installed: Keras 2.0 TensorFlow 0.12.1 Theano 0.8.2 Here is my code: from keras.models import Sequential from keras.layers import LSTM model = Sequential() model.add(LSTM(512,…
Ань Ле
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What is Correct implementation for the network given in the figure using keras?

I'm trying to implent this network (https://arxiv.org/pdf/1604.03505) (source code file - https://gist.github.com/kanihal/8b981b75cb6f22264c0af03be79b243a) Is this the correct implementation of network given below using functional api? I'm stuct…
jaggi
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Visualizing the input that maximizes the activation of a layer with dropout in Keras

I'm trying to replicate the code in this blog article How convolutional neural networks see the world It works well in a CNN where there's no dropout layer but when there's one (or more) dropout layers, I can't directly use the layer.output line…
Merwann Selmani
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Using model.pop() changes the model's summary but does not effect the output

I am trying to remove the top layers from a model I have previously trained. This is the code I use: import os import h5py import numpy as np from keras.preprocessing.image import ImageDataGenerator from keras.models import Sequential from…
user2182857
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ImportError: No module named numpy.distutils.core (during keras installation)

I want to install keras module (github-link). I tried pip install keras.It installed 1.2.1. It does not have Graph module as per this. Sadly the documentation is also is not updated. So I tried a previous version 1.1.2.and as per the answer by Chang…
Paul Schimmer
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Is it plausible to get a lower mse with more SpatialDropouts?

I have made the observation that with a SpatialDropout2D(0.2) layer after each of 5 Convolutional2D layers, the training and validation error is much lower during the first few epochs than with the same network without these Dropout layers (all…
Oblomov
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Verifying the output of an isolated layer in keras

Is it possible to verify the output of Cropping2D(cropping=((22, 0), (0, 0)), input_shape=resized_image.shape) Without constructing and training a model? I.e. I just want to pass and image to Cropping and get and display the…
Oblomov
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