Manish Barnwal

...just another human

ROC and AUC - The three lettered acronyms

I don't feel bad to confess this that ROC curve, AUC, True-positive and related terms took quite some time for me to understand. If today I contemplate on the reasons why I found this topic confusing. The first would be there are not many resources that explains intuitively what ...

Vim/Vi editor shortcuts

Repetitive tasks should be done using as many shortcuts as possible. You are not doing anything new and hence not even an extra minute should be spent on doing the same. This post refers to the shortcuts that come in handy when working on the vi/vim editor.

This is ...

Hadoop Streaming

A few days ago, I had written a post on The Big Data Problem which attempted to understand why we need big data and what the fuss is all about. You may want to read it here.

Having understood why we need big data, let’s understand how we can ...

When R package is not available across the cluster

When deploying R codes across the cluster, many a times the reason for the failure of the task is unavailability of a particular package across all nodes of the cluster. We wait for someone to get the package installed across all the nodes. This may take some days. Do we ...

Things I have learned (So Far)

Today when I opened my blog on Quora, I saw a draft of this post that I had written some six months post to my first job. The learnings I had moving from college to corporate.

Things I have learned (So Far)

I graduated from my college almost six months ...

The Big Data Problem

Big data has become a sensation these days. Anyone and everyone wants to use this in their discussions. When I was still in my college and preparing for campus placements, I had attended almost all the pre-placement talks that companies gave to its prospective candidates.

American Express was one such ...

My first attempt at public speaking

Having graduated from college, it was just 6 months into my new job that I was asked to give a tech-talk on Introduction to Data Science. Imagine the thrill and fright of a fresher when he is presented with a situation like this. The first thing I asked my manager ...

Understanding HIVE for data science people

I have been working as Statistical analyst for the last 1.5 years and fortunately I got to work on Hadoop on one of my initial projects. Hadoop sounds scary to a lot of people and I am no exception. In this post, I would make an attempt to explain ...

Pre-Placement Talk Snippets

I'd attended PPTs (Pre-placement Talks) of almost all the companies I'd interest in during my placement time. Many students find attending PPTs a waste of time. I was not one of them.

I liked attending PPTs. I felt they gave me continuous motivation to be consistent in my ...