# User contributions

### From Ufldl

- 01:50, 15 August 2011 (diff | hist) N Ufldl:Copyrights (Created page with "By submitting text or other materials to this Wiki, you are asserting that, and promising us that, you wrote this yourself, or copied it from a public domain or similar free reso...") (top)
- 20:28, 27 May 2011 (diff | hist) UFLDL Tutorial
- 19:05, 27 May 2011 (diff | hist) Exercise:Convolution and Pooling (→Step 4: Test classifier)
- 19:04, 27 May 2011 (diff | hist) Exercise:Convolution and Pooling (→Convolution and Pooling)
- 18:30, 27 May 2011 (diff | hist) Pooling (→Notes)
- 18:29, 27 May 2011 (diff | hist) Pooling (→Pooling: Overview)
- 18:15, 27 May 2011 (diff | hist) Feature extraction using convolution (→Convolutions)
- 18:13, 27 May 2011 (diff | hist) Feature extraction using convolution (→Convolutions)
- 18:13, 27 May 2011 (diff | hist) Feature extraction using convolution (→Weight Sharing (Convolution))
- 18:12, 27 May 2011 (diff | hist) Feature extraction using convolution (→Locally Connected Networks)
- 18:08, 27 May 2011 (diff | hist) Feature extraction using convolution (→Weight Sharing (Convolution))
- 18:08, 27 May 2011 (diff | hist) Feature extraction using convolution (→Weight Sharing (Convolution))
- 18:08, 27 May 2011 (diff | hist) Feature extraction using convolution (→Locally Connected Networks)
- 18:03, 27 May 2011 (diff | hist) Feature extraction using convolution (→Fully Connected Networks)
- 18:02, 27 May 2011 (diff | hist) Feature extraction using convolution (→Overview)
- 17:55, 27 May 2011 (diff | hist) Feature extraction using convolution
- 17:38, 27 May 2011 (diff | hist) UFLDL Tutorial
- 17:38, 27 May 2011 (diff | hist) Exercise:Learning color features with Sparse Autoencoders (→Step 2: Learn features on small patches)
- 17:33, 27 May 2011 (diff | hist) Exercise:Learning color features with Sparse Autoencoders (→Step 1: Modify your sparse autoencoder to use a linear decoder)
- 17:30, 27 May 2011 (diff | hist) Exercise:Learning color features with Sparse Autoencoders (→Step 0: Initialization)
- 17:30, 27 May 2011 (diff | hist) Exercise:Learning color features with Sparse Autoencoders (→Step 0: Initialization)
- 19:26, 17 May 2011 (diff | hist) UFLDL Tutorial
- 20:48, 13 May 2011 (diff | hist) Stacked Autoencoders (→Motivation)
- 20:40, 13 May 2011 (diff | hist) Deep Networks: Overview (→Greedy layer-wise training)
- 20:33, 13 May 2011 (diff | hist) Deep Networks: Overview (→Difficulty of training deep architectures)
- 20:25, 13 May 2011 (diff | hist) Deep Networks: Overview (→Difficulty of training deep architectures)
- 20:24, 13 May 2011 (diff | hist) Deep Networks: Overview (→Advantages of deep networks)
- 20:23, 13 May 2011 (diff | hist) Deep Networks: Overview (→Advantages of deep networks)
- 20:22, 13 May 2011 (diff | hist) Deep Networks: Overview (→Advantages of deep networks)
- 20:22, 13 May 2011 (diff | hist) Deep Networks: Overview (→Advantages of deep networks)
- 20:21, 13 May 2011 (diff | hist) Deep Networks: Overview (→Advantages of deep networks)
- 20:21, 13 May 2011 (diff | hist) Deep Networks: Overview (→Overview)
- 19:39, 13 May 2011 (diff | hist) Deep Networks: Overview
- 17:47, 13 May 2011 (diff | hist) Exercise: Implement deep networks for digit classification (→Step 4: Implement fine-tuning)
- 05:57, 13 May 2011 (diff | hist) Self-Taught Learning to Deep Networks
- 05:55, 13 May 2011 (diff | hist) Self-Taught Learning to Deep Networks
- 05:55, 13 May 2011 (diff | hist) Self-Taught Learning to Deep Networks
- 05:54, 13 May 2011 (diff | hist) Self-Taught Learning to Deep Networks (→Feature Learning pipeline)
- 05:54, 13 May 2011 (diff | hist) Self-Taught Learning to Deep Networks
- 05:52, 13 May 2011 (diff | hist) Self-Taught Learning to Deep Networks
- 05:46, 13 May 2011 (diff | hist) Self-Taught Learning to Deep Networks (→Overview)
- 05:41, 13 May 2011 (diff | hist) Self-Taught Learning to Deep Networks
- 00:15, 11 May 2011 (diff | hist) UFLDL Tutorial
- 23:49, 10 May 2011 (diff | hist) UFLDL Tutorial
- 23:45, 10 May 2011 (diff | hist) Exercise:Self-Taught Learning (→Step 4: Training and testing the logistic regression model)
- 23:45, 10 May 2011 (diff | hist) Exercise:Self-Taught Learning (→Step 3: Extracting features)
- 23:44, 10 May 2011 (diff | hist) Exercise:Self-Taught Learning (→Step 3: Extracting features)
- 23:43, 10 May 2011 (diff | hist) Exercise:Self-Taught Learning (→Step 2: Train the sparse autoencoder)
- 23:42, 10 May 2011 (diff | hist) Exercise:Self-Taught Learning (→Step 2: Train the sparse autoencoder)
- 23:42, 10 May 2011 (diff | hist) Exercise:Self-Taught Learning (→Step 2: Train the sparse autoencoder)
- 23:36, 10 May 2011 (diff | hist) Exercise:Self-Taught Learning (→Overview)
- 23:34, 10 May 2011 (diff | hist) Exercise:Self-Taught Learning (→Overview)
- 23:33, 10 May 2011 (diff | hist) Self-Taught Learning (→On the terminology of unsupervised feature learning)
- 23:33, 10 May 2011 (diff | hist) Self-Taught Learning (→On the terminology of unsupervised feature learning)
- 23:31, 10 May 2011 (diff | hist) Self-Taught Learning (→On the terminology of unsupervised feature learning)
- 23:30, 10 May 2011 (diff | hist) Self-Taught Learning (→On pre-processing the data)
- 23:29, 10 May 2011 (diff | hist) Self-Taught Learning (→Learning features)
- 23:26, 10 May 2011 (diff | hist) Self-Taught Learning (→Learning features)
- 23:25, 10 May 2011 (diff | hist) Self-Taught Learning (→Overview)
- 23:23, 10 May 2011 (diff | hist) Self-Taught Learning (→Overview)
- 23:22, 10 May 2011 (diff | hist) Self-Taught Learning (→Overview)
- 23:09, 10 May 2011 (diff | hist) Self-Taught Learning
- 22:54, 10 May 2011 (diff | hist) Self-Taught Learning
- 22:24, 10 May 2011 (diff | hist) UFLDL Tutorial
- 22:24, 10 May 2011 (diff | hist) UFLDL Tutorial
- 19:10, 10 May 2011 (diff | hist) Softmax Regression (→Softmax Regression vs. k Binary Classifiers)
- 19:09, 10 May 2011 (diff | hist) Softmax Regression (→Relationship to Logistic Regression)
- 18:45, 10 May 2011 (diff | hist) Softmax Regression (→Weight Decay)
- 18:41, 10 May 2011 (diff | hist) Softmax Regression (→Properties of softmax regression parameterization)
- 18:37, 10 May 2011 (diff | hist) Softmax Regression (→Properties of softmax regression parameterization)
- 18:36, 10 May 2011 (diff | hist) Softmax Regression (→Cost Function)
- 18:33, 10 May 2011 (diff | hist) Softmax Regression (→Cost Function)
- 18:32, 10 May 2011 (diff | hist) Softmax Regression (→Introduction)
- 18:32, 10 May 2011 (diff | hist) Softmax Regression (→Introduction)
- 18:31, 10 May 2011 (diff | hist) Softmax Regression (→Introduction)
- 18:29, 10 May 2011 (diff | hist) Softmax Regression (→Introduction)
- 18:29, 10 May 2011 (diff | hist) Softmax Regression (→Introduction)
- 18:28, 10 May 2011 (diff | hist) Softmax Regression (→Introduction)
- 18:28, 10 May 2011 (diff | hist) Softmax Regression (→Introduction)
- 07:09, 10 May 2011 (diff | hist) Softmax Regression (→Properties of softmax regression parameterization)
- 07:09, 10 May 2011 (diff | hist) Softmax Regression (→Properties of softmax regression parameterization)
- 07:08, 10 May 2011 (diff | hist) Softmax Regression (→Properties of softmax regression parameterization)
- 07:07, 10 May 2011 (diff | hist) Softmax Regression (→Cost Function)
- 07:02, 10 May 2011 (diff | hist) Exercise:Softmax Regression (→Step 2: Implement softmaxCost)
- 07:00, 10 May 2011 (diff | hist) Exercise:Softmax Regression (→Step 1: Load data)
- 06:59, 10 May 2011 (diff | hist) Exercise:Softmax Regression (→Step 2: Implement softmaxCost)
- 06:24, 10 May 2011 (diff | hist) Softmax Regression (→Cost Function)
- 06:23, 10 May 2011 (diff | hist) Softmax Regression
- 05:59, 10 May 2011 (diff | hist) Softmax Regression
- 05:43, 10 May 2011 (diff | hist) Softmax Regression
- 05:42, 10 May 2011 (diff | hist) Softmax Regression
- 17:07, 3 May 2011 (diff | hist) Exercise:PCA and Whitening (→Step 1a: Implement PCA)
- 01:43, 30 April 2011 (diff | hist) Exercise:PCA and Whitening (→Step 4b: Check covariance)
- 01:39, 30 April 2011 (diff | hist) Exercise:PCA and Whitening (→Step 3: PCA with dimension reduction)
- 01:37, 30 April 2011 (diff | hist) Exercise:PCA and Whitening (→Step 5: ZCA whitening)
- 01:19, 30 April 2011 (diff | hist) Exercise:PCA and Whitening
- 01:00, 30 April 2011 (diff | hist) Exercise:PCA in 2D (→Step 2: Dimension reduce and replot)
- 01:00, 30 April 2011 (diff | hist) Exercise:PCA in 2D (→Step 1b: Check xRot)
- 00:59, 30 April 2011 (diff | hist) Exercise:PCA in 2D (→Step 1b: Check xRot)
- 00:59, 30 April 2011 (diff | hist) Exercise:PCA in 2D
- 00:01, 30 April 2011 (diff | hist) Implementing PCA/Whitening
- 23:42, 29 April 2011 (diff | hist) Whitening (→ZCA Whitening)
- 23:40, 29 April 2011 (diff | hist) Whitening (→Regularizaton)
- 23:37, 29 April 2011 (diff | hist) Whitening (→ZCA Whitening)
- 23:32, 29 April 2011 (diff | hist) Whitening (→2D example)
- 23:31, 29 April 2011 (diff | hist) Whitening (→2D example)
- 23:31, 29 April 2011 (diff | hist) Whitening (→Introduction)
- 23:27, 29 April 2011 (diff | hist) PCA (→PCA on Images)
- 23:21, 29 April 2011 (diff | hist) PCA (→Number of components to retain)
- 23:18, 29 April 2011 (diff | hist) PCA (→Recovering an Approximation of the Data)
- 23:16, 29 April 2011 (diff | hist) PCA (→Reducing the Data Dimension)
- 23:14, 29 April 2011 (diff | hist) PCA (→Rotating the Data)
- 23:14, 29 April 2011 (diff | hist) PCA (→Rotating the Data)
- 23:13, 29 April 2011 (diff | hist) PCA (→Rotating the Data)
- 23:07, 29 April 2011 (diff | hist) m UFLDL Tutorial
- 20:10, 29 April 2011 (diff | hist) UFLDL Tutorial
- 19:58, 29 April 2011 (diff | hist) Exercise:PCA and Whitening
- 19:55, 29 April 2011 (diff | hist) PCA (→PCA on Images)
- 19:53, 29 April 2011 (diff | hist) PCA (→Example and Mathematical Background)
- 19:51, 29 April 2011 (diff | hist) PCA (→Example and Mathematical Background)
- 19:40, 29 April 2011 (diff | hist) Exercise:Vectorization (→Vectorization)
- 19:37, 29 April 2011 (diff | hist) Exercise:Vectorization (→Vectorization)
- 19:36, 29 April 2011 (diff | hist) Exercise:Vectorization (→Vectorization)
- 19:11, 29 April 2011 (diff | hist) Exercise:Vectorization (→Step 2: Learn features for handwritten digits)
- 19:07, 29 April 2011 (diff | hist) Exercise:Vectorization (→Step 2: Learn features for handwritten digits)
- 19:03, 29 April 2011 (diff | hist) Exercise:Vectorization (→Step 1: Vectorize your Sparse Autoencoder Implementation)
- 18:57, 29 April 2011 (diff | hist) Neural Network Vectorization
- 18:56, 29 April 2011 (diff | hist) Neural Network Vectorization
- 18:42, 29 April 2011 (diff | hist) Neural Network Vectorization
- 18:38, 29 April 2011 (diff | hist) Neural Network Vectorization
- 18:32, 29 April 2011 (diff | hist) Logistic Regression Vectorization Example
- 18:25, 29 April 2011 (diff | hist) Vectorization
- 20:59, 22 April 2011 (diff | hist) Backpropagation Algorithm
- 20:57, 22 April 2011 (diff | hist) Neural Networks
- 20:55, 22 April 2011 (diff | hist) Neural Networks
- 20:54, 22 April 2011 (diff | hist) Neural Networks
- 01:00, 22 April 2011 (diff | hist) N Fminlbfgs Details (Created page with "The function <tt>fminlbfgs</tt> gives a BSD license implementation of L-BFGS (so appropriate use of this in commercial applications is okay). Here, we describe some details. Yo...")
- 00:55, 22 April 2011 (diff | hist) Exercise:Sparse Autoencoder
- 18:22, 19 April 2011 (diff | hist) UFLDL Tutorial
- 01:42, 2 March 2011 (diff | hist) N Backpropagation vectorization hints (Created page with "Here, we give a few hints on how to vectorize the Backpropagation step. The hints here specifically build on our earlier description of [[Neural Network Vectorization|how to vec...") (top)
- 00:48, 2 March 2011 (diff | hist) Neural Network Vectorization
- 00:34, 2 March 2011 (diff | hist) Neural Network Vectorization
- 00:09, 2 March 2011 (diff | hist) m Backpropagation Algorithm
- 23:53, 1 March 2011 (diff | hist) m Backpropagation Algorithm
- 23:36, 1 March 2011 (diff | hist) N Neural Network Vectorization (Created page with "In this section, we derive a vectorized version of our neural network. In our earlier description of Neural Networks, we had already given a partially vectorized implementat...")
- 22:56, 1 March 2011 (diff | hist) m Logistic Regression Vectorization Example
- 19:35, 1 March 2011 (diff | hist) Logistic Regression Vectorization Example
- 19:24, 1 March 2011 (diff | hist) m Vectorization
- 06:38, 27 February 2011 (diff | hist) Neural Networks
- 06:20, 27 February 2011 (diff | hist) Neural Networks
- 06:19, 27 February 2011 (diff | hist) Neural Networks
- 06:08, 27 February 2011 (diff | hist) m Neural Networks
- 06:07, 27 February 2011 (diff | hist) Neural Networks
- 02:43, 27 February 2011 (diff | hist) N Template:Reflist (Created page with "{{documentation subpage}} <!-- EDIT TEMPLATE DOCUMENTATION BELOW THIS LINE --> <includeonly>{{high-risk|1,700,000+}}</includeonly> {{ombox | type=notice | text = Columns are curr...") (top)
- 02:42, 27 February 2011 (diff | hist) N Reflist (Created page with "{{documentation subpage}} <!-- EDIT TEMPLATE DOCUMENTATION BELOW THIS LINE --> <includeonly>{{high-risk|1,700,000+}}</includeonly> {{ombox | type=notice | text = Columns are curr...") (top)
- 02:33, 27 February 2011 (diff | hist) UFLDL Tutorial
- 02:07, 27 February 2011 (diff | hist) UFLDL Tutorial
- 01:38, 27 February 2011 (diff | hist) Logistic Regression Vectorization Example
- 01:15, 27 February 2011 (diff | hist) Logistic Regression Vectorization Example
- 00:37, 27 February 2011 (diff | hist) Neural Networks
- 00:23, 27 February 2011 (diff | hist) UFLDL Tutorial
- 00:22, 27 February 2011 (diff | hist) N Logistic Regression Vectorization Example (Created page with "Consider training a logistic regression model using batch gradient ascent. Suppose our hypothesis is :<math>\begin{align} h_\theta(x) = \frac{1}{1+\exp(-\theta^Tx)}, \end{align}<...")
- 00:15, 27 February 2011 (diff | hist) N Vectorization (Created page with "When working with learning algorithms, very often having a faster piece of code means that you'll make progress faster on the problem. For example, if your learning algorithm ta...")
- 23:46, 26 February 2011 (diff | hist) N Sparse Autoencoder Notation Summary (Created page with "Here is a summary of the symbols used in our derivation of the sparse autoencoder: {| class="wikitable" |- ! Symbol ! Meaning |- | <math>\textstyle x</math> | Input features fo...")
- 23:42, 26 February 2011 (diff | hist) UFLDL Tutorial
- 23:41, 26 February 2011 (diff | hist) N Visualizing a Trained Autoencoder (Created page with "Having trained a (sparse) autoencoder, we would now like to visualize the function learned by the algorithm, to try to understand what it has learned. Consider the case of traini...")
- 23:40, 26 February 2011 (diff | hist) N File:ExampleSparseAutoencoderWeights.png (Example of trained weights in a sparse autoencoder.) (top)
- 23:38, 26 February 2011 (diff | hist) N Autoencoders and Sparsity (Created page with "So far, we have described the application of neural networks to supervised learning, in which we are have labeled training examples. Now suppose we have only unlabeled training ...")
- 23:36, 26 February 2011 (diff | hist) N File:KLPenaltyExample.png (Plot showing an example of the KL penalty used in the sparse autoencoder.) (top)
- 23:36, 26 February 2011 (diff | hist) N File:Autoencoder636.png (Autoencoder with 6-3-6 architecture.) (top)
- 23:35, 26 February 2011 (diff | hist) N Gradient checking and advanced optimization (Created page with "Backpropagation is a notoriously difficult algorithm to debug and get right, especially since many subtly buggy implementations of it---for example, one that has an off-by-one er...")
- 23:33, 26 February 2011 (diff | hist) UFLDL Tutorial
- 23:26, 26 February 2011 (diff | hist) Backpropagation Algorithm
- 23:20, 26 February 2011 (diff | hist) Neural Networks
- 23:14, 26 February 2011 (diff | hist) N Backpropagation Algorithm (Created page with "Suppose we have a fixed training set <math>\{ (x^{(1)}, y^{(1)}), \ldots, (x^{(m)}, y^{(m)}) \}</math> of <math>m</math> training examples. We can train our neural network using ...")
- 23:05, 26 February 2011 (diff | hist) Neural Networks
- 22:58, 26 February 2011 (diff | hist) UFLDL Tutorial
- 22:56, 26 February 2011 (diff | hist) Neural Networks
- 22:55, 26 February 2011 (diff | hist) N File:Network3322.png (Neural Network with 3-3-2-2 architecture.) (top)
- 06:23, 26 February 2011 (diff | hist) Neural Networks
- 06:20, 26 February 2011 (diff | hist) Main Page
- 06:04, 26 February 2011 (diff | hist) Neural Networks
- 06:03, 26 February 2011 (diff | hist) N File:Network331.png (Neural network with 3-3-1 units (3 input, 3 hidden, 1 output).) (top)
- 05:55, 26 February 2011 (diff | hist) N Template:Double image (Created page with "{{!}} style="padding: 0; margin: 0; b<includeonly>{{#switch: {{{1|}}} <!-- first parameter inserts a <div> with a left, right or central float --> | left = <div class="thumb tlef...") (top)
- 05:53, 26 February 2011 (diff | hist) N Template:Multiple image (Created page with "{{#if:{{{image1|}}}{{{image2|}}}{{{image3|}}}{{{image4|}}}{{{image5|}}}{{{image6|}}}{{{image7|}}}{{{image8|}}}{{{image9|}}}{{{image10|}}}|<div class="thumb {{#switch: {{{align|}}...") (top)
- 05:41, 26 February 2011 (diff | hist) Neural Networks
- 05:40, 26 February 2011 (diff | hist) UFLDL Tutorial
- 05:38, 26 February 2011 (diff | hist) N File:Sigmoid Function.png (Plot of the sigmoid function.) (top)
- 05:37, 26 February 2011 (diff | hist) N File:Tanh Function.png (Plot of the tanh function.) (top)
- 05:36, 26 February 2011 (diff | hist) Neural Networks
- 05:32, 26 February 2011 (diff | hist) File:SingleNeuron.png (top)
- 05:31, 26 February 2011 (diff | hist) File:SingleNeuron.png (uploaded a new version of "File:SingleNeuron.png": Single Neuron)
- 05:30, 26 February 2011 (diff | hist) N File:SingleNeuron.png (Single Neuraon)
- 05:29, 26 February 2011 (diff | hist) N Neural Networks (Created page with "Consider a supervised learning problem where we have access to labeled training examples <math>(x^{(i)}, y^{(i)})</math>. Neural networks give a way of defining a complex, non-l...")
- 05:09, 26 February 2011 (diff | hist) Sandbox
- 04:49, 26 February 2011 (diff | hist) N Sandbox (Created page with "'''This is a sandbox page. Feel free to edit below this line.''' ---- This is a caption")
- 04:44, 26 February 2011 (diff | hist) N File:Cartoon Moon Rocket.png (Cartoon moon rocket. (Public domain image from openclipart.org).) (top)
- 03:30, 26 February 2011 (diff | hist) Main Page
- 03:29, 26 February 2011 (diff | hist) N UFLDL Tutorial (Created page with "* Autoencoders * Backpropagation * Exercise:Sparse_Autoencoder")