∫ntegrabℓε ∂iﬀerentiαℓs · unorganised notes, code, and writings of random topics

Keyword-only arguments, positional-only arguments, and Python decorators

September 27, 2022 blog code

In Python 3, we can define a function with keyword-only arguments and in Python 3.8, we can further define with positional-only arguments. The syntax is easy, as follows: [more]

Color PCL in macOS

August 10, 2022 blog system

It is quite a surprise that if you have a HP color laser printer, and you’re trying to use the PCL protocol to print, you will only print in black and white. If it is print using PostScript language, you can get the color. There is not an option for... [more]

Dey et al (2017) SigNet

June 13, 2022 paper

This is a paper proposing a siamese network for signature verification. Essentially, it can also be applied to other image matching tasks. The network, called SigNet, has the main branch to encode a signature image into a vector. With the signature pair, the encoded vectors are compared using contrastive loss... [more]

Copying weight tensors from PyTorch to Tensorflow (and back)

May 21, 2022 blog code

This is a remake of a previous post due to its popularity. Let’s consider a PyTorch network and a Tensorflow/Keras network. If they are in exactly the same architecture, we should be able to copy the weight parameters from one to another. But how? [more]

Cao et al (2019) OpenPose

May 12, 2022 paper

Goal of the paper: Human 2D pose estimation by identifying keypoints, supporting multiple persons in the same image. [more]