What is Epoch, Batch Size and Iterations?

One Epoch is when an ENTIRE dataset is passed forward and backward through the neural network only ONCE. Since, one epoch is too big to feed at once it is divided into several smaller batches of size batch_size. Iterations is the number of batches needed to complete one epoch. For example, a dataset of 1000 samples […]

What is input_data in TFLearn?

tflearn.layers.core.input_data (shape=None, placeholder=None, dtype=tf.float32, data_preprocessing=None, data_augmentation=None, name=’InputData’) In TFLearn, the input_data is the input layer to the neural network. It is used to specify how the input looks like, before adding any of the usual layer in the sequential model. For example, in the MNIST data set where a 784 array represents 28×28 images with […]

How to install yosys on Fedora 26

Unlike my other posts in the past decade where I referred to install anything from a rpmbuild, today I just want to get the install done and move on. Prequisites for the yosys installation: $ sudo dnf install clang tcl-devel readline-devel libffi-devel mercurial iverilog Yosys build: $ git clone https://github.com/cliffordwolf/yosys.git $ cd yosys/ $ make […]

Quartus 17.0 Prime install on Fedora 26

After installling Quartus on a x86_64 fedora 26, I fell upon the lib12.so.0 error. $ quartus quartus: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory The simple solution is $ sudo dnf install libpng12-devel.i686 Unfortunately I was not unable to program the bitstream on the fpga, thus […]

uvm_dpi 32-bit requirements on Fedora 26

This morning I was trying to compile uvm’ s dpi plug on Fedora 26 and ended with the following error: Model Technology ModelSim – Intel FPGA Edition vlog 10.5c Compiler 2017.01 Jan 23 2017 vlog “+incdir+uvm-1.2/src” uvm-1.2/src/dpi/uvm_dpi.cc ** Warning: ** Warning: (vlog-7032) The 32-bit glibc RPM does not appear to be installed on this machine. […]

Modelsim Intel-Altera 10.5c on Fedora26

This blog post is about how to run Modelsim Intel-Altera 10.5c on Fedora 26 (4.12.13-300.fc26.x86_64) after its installation. Modelsim Intel-Altera 10.5c comes with intelFPGA_pro 17.0. First install the 32-bit libraries. $ sudo dnf install glibc.i686 zlib.i686 bzip2-libs.i686 libXft.i686 libXext.i686 ncurses-compat-libs.i686 Download the freetype of el7 from here and copy the so files to modelsim’s internal directory. […]

Weights update process

The process of updating weights is one training iteration involving backpropagation. The latter can be broken down into 4 distinct steps: Forward pass In this first training step, the intention is to extract weight from the first pass of the training data into the neural network. Loss function The training loss (precision) is calculated from […]