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

Creating a command line program automatically from a Python function

October 8, 2022 blog code

Undeniably Python is quite idiot-friendly language that you don’t need too much learning to get something done. A lot of code out there to copy and the concise language helped too. While writing a Python function is easy, it seems quite a lot of boilerplates needed additionally to make a... [more]

Diskless Debian with NBD

September 30, 2022 blog system

A previous post about diskless Debian setup was using NFS. This is an attempt to try network block device. This can solve some problem caused by NFS, for example, running a docker daemon on such a system that uses overlay storage driver, which only supports a few backing file systems.... [more]

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]