Understanding transposed convolutions in PyTorch
This post explains transposed convolution and relevant module arguments in PyTorch.
Category Algorithms
A vectorized Mann-Kendall trend test implementation using numpy + scipy
In this post we are going to work out a vectorized Mann-Kendall trend test implementation using numpy and scipy.
Create a convolutional neural network using numpy
In this post we put together all the building blocks covered in previous posts to create a convolution neural network, using numpy, and test it on the MNIST hand-written digits classification task.
Back-propagation in a convolution layer with numpy implementation
This post covers the derivations of back-propagation in a convolution layer, with numpy implementations.
2D and 3D pooling using numpy
This post covers the implementation of pooling layers in a convolutional neural network using numpy.
2D and 3D convolutions using numpy
This post will share some knowledge of 2D and 3D convolutions in a
convolution neural network (CNN), and 3 implementations all done using pure `numpy` and `scipy`.
Create a simple neural network using numpy
This post will share some basic knowledge of an artificial neural
network and how to create one from scratch using only numpy. We will build a classification network to
classify hand-written digits from the MNIST dataset.
Compute Sample Silhouette Values in a Clustering Analysis
This post shares a Python implementation to compute the Silhouette Values in a clustering analysis.
Ramer-Douglas-Peucker (RDP) algorithm in spherical coordinate
The Ramer-Douglas-Peucker (RDP) algorithm is a curve simplification method. To apply it on coordinates defined by latitudes/longitudes, we need to replace the Cartesian geometry with a spherical one.
2D convolution with missing data
The convolution functions in `scipy` do not work well with missing data. We create a 2D convolution function that allows a controllable tolerance to missing values. It is first implemented in Fortran, then using `scipy` in an FFT approach.