Thursday, December 30, 2021

Mechanical Sympathy - Closing post 2021


One of my techno-geek followers sent a note a  few weeks back asking for updates on my last post for this year and asked about my favorite post. Unfortunately, I have not been actively blogging in 2021, said that I  have been working offline with the engineering community actively on exploring new technologies. One of my favorites has been learning the machine learning area.  I would like to thank all my fellow engineers for their collaboration and engagement over the years. 

As we move on to 2022, I thought of looking back for my favorite post over the years and this post beats all others and is still my favorite. 

Quote posted around four years back from Jackie Stewart ""

“You don’t have to be an engineer to be a racing driver, but you do have to have Mechanical Sympathy.” 

– Jackie Stewart, racing driver

I wish all of you, Happy and Healthy New Year!!!

Tuesday, June 08, 2021

Why do we use np.random.seed()

This is a simple function but to my surprise lot of ML engineers had asked me about the actual usage of this function and why do I use it when i am working on an algorithm which will be shared with other engineers. 

The simple answer is :

the function generates a random deterministic number. It generated the same random number each time for a specified seed  

"It's a random function with deterministic output for a specified seed. This helps to share the code and get the same output each time. "

Try this :


np.random.randint(low = 1, high = 10, size = 20)

The output will be, each time till seed is specified as "1" 

array([6, 9, 6, 1, 1, 2, 8, 7, 3, 5, 6, 3, 5, 3, 5, 8, 8, 2, 8, 1])

Thursday, February 11, 2021

Installing Octave in Ubuntu running on Docker

I want to run Octave on Ubuntu running on docker.  Simple stuff but still manage to get errors and had to spend  few minutes on fine-tuning 

Here it goes

1- Start docket and get Ubuntu image from repo
    - Couple of commands
            - docker pull ubuntu
            - docker run -it ubuntu 

2- Install Octave 
    - ran command "apt-get install octave" and here it goes error "Unable to locate package Octave"

3- to come over this issue run below commands
    - apt-get update
    - apt-get install octave 


Gray Failures: What is it and how to detect one?

If you are reading this article , i guess you are curious to know about gray failures and different methods to detect gray failures.  Hopefu...