nolearn is a Python package with utility functions for machine learning tasks.
nolearn is a python package with utility functions for machine learning tasks.
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Questions tagged [nolearn]
43 questions
2
votes
1 answer
Nolearn raises an index error when running a classification, but not with regression
I'm stuck from several days ago with the problem I'm going to describe. I'm following the Daniel Nouri's tutorial about deep learning: http://danielnouri.org/notes/category/deep-learning/ and I tried to adapt his example to a classification dataset.…
ivallesp
- 2,018
- 1
- 14
- 21
2
votes
1 answer
Convolutional Neural Network accuracy with Lasagne (regression vs classification)
I have been playing with Lasagne for a while now for a binary classification problem using a Convolutional Neural Network. However, although I get okay(ish) results for training and validation loss, my validation and test accuracy is always constant…
mjacuse
- 79
- 1
- 5
2
votes
2 answers
Theano TensorType error
When I am using nolearn to implement multi-label classification, I got this error:
'Bad input argument to theano function with name "/Users/lm/Documents/anaconda/lib/python2.7/site-packages/nolearn/lasagne/base.py:391"
at index 1(0-based)',…
Kun
- 581
- 1
- 5
- 27
2
votes
2 answers
nolearn for multi-label classification
I tried to use DBN function imported from nolearn package, and here is my code:
from nolearn.dbn import DBN
import numpy as np
from sklearn import cross_validation
fileName = 'data.csv'
fileName_1 = 'label.csv'
data = np.genfromtxt(fileName,…
Kun
- 581
- 1
- 5
- 27
2
votes
1 answer
Neural network for more than one class not working
I am trying to use a Neural network for a classification problem. I have 6 possible classes and the same input may be in more than one class.
The problem is that when I try to train one NN for each class, I set output_num_units = 1 and on train, I…
Adriano Almeida
- 5,186
- 5
- 20
- 28
2
votes
1 answer
Can I use multiple labels for one feature vector with Lasagne?
I have a semantic segmentation problem where it would be very nice if I could have multiple labels for one feature vector. So I have some parts of my data which belong to class 1, 2 AND 3 (and others which belong to only one class, some to no class…
Martin Thoma
- 124,992
- 159
- 614
- 958
1
vote
1 answer
Approximating a simple sin() function with lasagne
I'm trying lasagne and the nolearn NeuralNet function to approximate a simple sin function. After all, neural nets are proven to be universal approximators, so I wanted to try lasagne on a simple non-linear function to show that fact experimentally.…
Jorge del Val
- 111
- 1
- 3
1
vote
1 answer
How to get values of neurons on layer? Python-nolearn
I have neural network created with using nolearn library.
net = NeuralNet(
layers=[
('input', layers.InputLayer),
('conv1', layers.Conv2DLayer),
('pool1', layers.MaxPool2DLayer),
('dropout1', layers.DropoutLayer),
('conv2',…
Константин Савельев
- 53
- 5
1
vote
0 answers
Speedup nolearn function for occlusion heat maps
I'd like to use nolearn's occlusion_heatmap function. However, since it takes 2-3 seconds to create a single heat map this approach is not practical for my data set with several thousand images.
I assume that one could speedup the function by…
rldw
- 145
- 2
- 9
1
vote
0 answers
nolearn auto add hidden layers
Trying to add more hidden layers to my neural network so I can compare the precision score of different layers using the same learn rates and momentum etc.
So I have the following:
from nolearn.dbn import DBN
from sklearn.cross_validation import…
Charlotte A.Wilson
- 51
- 4
1
vote
2 answers
removing bias from neural network layer
I want to remove the bias parameter. I tried to include thebias=None where I define my neural net, but it didn't work.
net1 = NeuralNet(
layers=[ # three layers: one hidden layer
('input', layers.InputLayer),
#('hidden',…
MAS
- 4,503
- 7
- 32
- 55
1
vote
0 answers
How can you train multiple neural networks simultaneously in nolearn/lasagne/theano on Python?
I am writing a calibration pipeline to learn the hyperparameters for neural networks to detect properties of DNA sequences*. This therefore requires training a large number of models on the same dataset with different hyperparameters.
I am trying to…
Andrew Steele
- 493
- 6
- 16
1
vote
2 answers
Theano TypeError
I am reading jpg images and then reshaping them into a tensor. I am casting the images as float32:
def load(folder,table):
X=[]
train = pd.read_csv(table)
for i,img_id in enumerate(train['Image']):
img = io.imread(folder+img_id[2:])
…
MAS
- 4,503
- 7
- 32
- 55
1
vote
2 answers
How to Store Lasagne Neural Network Object
I am trying to train a CNN using Lasagne and NoLearn. After, the learning is over, I want to store the neuralnetwork parameters.
Specifically,
nn = net1.fit(X_train, y_train) # train neural net
with open('nn.pickle', 'wb') as f:
…
user3215384
- 61
- 3
1
vote
2 answers
Installing nolearn (python machine learning) results in error
I am attempting to install nolearn, a python machine learning library (based upon theano and lasagne), and am receiving an unusual error (note: the command is the first step in installing nolearn as install docs):
COMMAND:
sudo pip install -r…
Eric Broda
- 6,701
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- 72