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  These notes accompany the Stanford CS class <a href="http://cs231n.stanford.edu/">CS231n: Convolutional Neural Networks for Visual Recognition</a>. 
  <br>
  For questions/concerns/bug reports regarding contact <a href="http://cs.stanford.edu/people/jcjohns/">Justin Johnson</a> regarding the assignments, or contact <a href="cs.stanford.edu/people/karpathy/">Andrej Karpathy</a> regarding the course notes. You can also submit a pull request directly to our <a href="https://github.com/cs231n/cs231n.github.io">git repo</a>.
  <br>
  We encourage the use of the <a href="https://hypothes.is/">hypothes.is</a> extension to annote comments and discuss these notes inline.
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    <div class="module-header">Spring 2017 Assignments</div>

    <div class="materials-item">
      <a href="assignments2017/assignment1/">
        Assignment #1: Image Classification, kNN, SVM, Softmax, Neural Network
      </a>
    </div>

    <div class="materials-item">
      <a href="assignments2017/assignment2/">
        Assignment #2: Fully-Connected Nets, Batch Normalization, Dropout,
        Convolutional Nets
      </a>
    </div>	  
	  
    <!--
    <div class="module-header">Winter 2016 Assignments</div>

    <div class="materials-item">
      <a href="assignments2016/assignment1/">
        Assignment #1: Image Classification, kNN, SVM, Softmax, Neural Network
      </a>
    </div>

    <div class="materials-item">
      <a href="assignments2016/assignment2/">
        Assignment #2: Fully-Connected Nets, Batch Normalization, Dropout,
        Convolutional Nets
      </a>
    </div>

    <div class="materials-item">
      <a href="assignments2016/assignment3/">
        Assignment #3: Recurrent Neural Networks, Image Captioning,
        Image Gradients, DeepDream
      </a>
    </div>
    -->
	  
    <!--
    <div class="module-header">Winter 2015 Assignments</div>

    <div class="materials-item">
      <a href="assignment1/">
        Assignment #1: Image Classification, kNN, SVM, Softmax
      </a>
    </div>

    <div class="materials-item">
      <a href="assignment2/">
        Assignment #2: Neural Networks, ConvNets I
      </a>
    </div>

    <div class="materials-item">
      <a href="assignment3/">
        Assignment #3: ConvNets II, Transfer Learning, Visualization
      </a>
    </div>
  -->

    <div class="module-header">Module 0: Preparation</div>

    <div class="materials-item">
      <a href="python-numpy-tutorial/">
        Python / Numpy Tutorial
      </a>
    </div>

    <div class="materials-item">
      <a href="ipython-tutorial/">
        IPython Notebook Tutorial
      </a>
    </div>
<!--
    <div class="materials-item">
      <a href="terminal-tutorial/">
        Terminal.com Tutorial
      </a>
    </div>
-->
    <div class="materials-item">
      <a href="gce-tutorial/">
        Google Cloud Tutorial
      </a>
    </div>

    <div class="materials-item">
      <a href="gce-tutorial-gpus/">
        Google Cloud with GPUs Tutorial (for assignment 2 onwards)
      </a>
    </div>
    <div class="materials-item">
      <a href="aws-tutorial/">
        AWS Tutorial
      </a>
    </div>

	 <!-- hardcoding items here to force a specific order -->
    <div class="module-header">Module 1: Neural Networks</div>

    <div class="materials-item">
      <a href="classification/">
        Image Classification: Data-driven Approach, k-Nearest Neighbor, train/val/test splits
      </a>
      <div class="kw">
        L1/L2 distances, hyperparameter search, cross-validation
      </div>
    </div>

    <div class="materials-item">
      <a href="linear-classify/">
         Linear classification: Support Vector Machine, Softmax
      </a>
      <div class="kw">
        parameteric approach, bias trick, hinge loss, cross-entropy loss, L2 regularization, web demo
      </div>
    </div>

    <div class="materials-item">
      <a href="optimization-1/">
        Optimization: Stochastic Gradient Descent
      </a>
      <div class="kw">
        optimization landscapes, local search, learning rate, analytic/numerical gradient
      </div>
    </div>

    <div class="materials-item">
      <a href="optimization-2/">
        Backpropagation, Intuitions
      </a>
      <div class="kw">
        chain rule interpretation, real-valued circuits, patterns in gradient flow
      </div>
    </div>

    <div class="materials-item">
      <a href="neural-networks-1/">
          Neural Networks Part 1: Setting up the Architecture
      </a>
      <div class="kw">
        model of a biological neuron, activation functions, neural net architecture, representational power
      </div>
    </div>

    <div class="materials-item">
      <a href="neural-networks-2/">
          Neural Networks Part 2: Setting up the Data and the Loss
      </a>
      <div class="kw">
          preprocessing, weight initialization, batch normalization, regularization (L2/dropout), loss functions
      </div>
    </div>

    <div class="materials-item">
      <a href="neural-networks-3/">
        Neural Networks Part 3: Learning and Evaluation
      </a>
      <div class="kw">
        gradient checks, sanity checks, babysitting the learning process, momentum (+nesterov), second-order methods, Adagrad/RMSprop, hyperparameter optimization, model ensembles
      </div>
    </div>

    <div class="materials-item">
      <a href="neural-networks-case-study/">
          Putting it together: Minimal Neural Network Case Study
      </a>
      <div class="kw">
        minimal 2D toy data example
      </div>
    </div>

    <div class="module-header">Module 2: Convolutional Neural Networks</div>

    <div class="materials-item">
      <a href="convolutional-networks/">
        Convolutional Neural Networks: Architectures, Convolution / Pooling Layers
      </a>
      <div class="kw">
          layers, spatial arrangement, layer patterns, layer sizing patterns, AlexNet/ZFNet/VGGNet case studies, computational considerations
      </div>
    </div>

    <div class="materials-item">
      <a href="understanding-cnn/">
        Understanding and Visualizing Convolutional Neural Networks
      </a>
      <div class="kw">
        tSNE embeddings, deconvnets, data gradients, fooling ConvNets, human comparisons
      </div>
    </div>

    <div class="materials-item">
      <a href="transfer-learning/">
        Transfer Learning and Fine-tuning Convolutional Neural Networks
      </a>
    </div>
 
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