Subscribe: blog@Yantrajaal
http://thoughtshoppe.blogspot.com/feeds/posts/default
Added By: Feedage Forager Feedage Grade B rated
Language: English
Tags:
computers  data  google sheets  jupyter notebook  means  new  quantum computers  quantum  space  spark python  spark  sql  technology  time 
Rate this Feed
Rate this feedRate this feedRate this feedRate this feedRate this feed
Rate this feed 1 starRate this feed 2 starRate this feed 3 starRate this feed 4 starRate this feed 5 star

Comments (0)

Feed Details and Statistics Feed Statistics
Preview: blog@Yantrajaal

blog@Yantrajaal



the incomplete thoughts of Prithwis Mukerjee



Updated: 2017-11-23T17:08:10.016+05:30

 



Managing GST efficiently with Blockchain and GSTCoin (⇞)

2017-11-02T08:09:44.915+05:30

Bitcoin is the rage! With an unbelievable appreciation in prices, many people want to invest in this red-hot cryptocurrency but whether the current valuation is a bubble that will burst is an open question. What is indisputable however is the immense versatility of the blockchain technology that is used in bitcoin -- and all cryptocurrencies. GST too is the rage, or rather the cause of rage



Google Sheets with SQL

2017-10-28T17:11:42.572+05:30

The Google App Suite ( or G-Suite) of products is a powerful and free alternative to the traditional Office Suite and includes among others Docs, Sheets and Slides. Google Sheets offers full spreadsheet functionality and in this post and sample, we show how data stored in Google Sheets spreadsheets can be accessed with SQL. This post assumes that the reader is familar with standard spreadsheet



Quantum Computers

2017-10-10T06:41:57.652+05:30

My presentation on Quantum Computers at the Cypher 2017 conference in Bangalore on 21 September 2017 more information about Quantum Computers is available in an earlier blog post.



A Central Cyber Defence Authority for Digital India

2017-10-02T18:51:32.533+05:30

The weekend of 8th - 10th July 2017 was a little different from most other weekends. First, late on Friday night, the Airtel network in the NCR region went down because of a data corruption in one of their critical computers. Then, and the exact time is not known, someone hacked, or illegally accessed, the Jio customer database, retrieved confidential identity data about customers, including



The IT Professional & the Zone of Comfort

2017-09-03T06:23:34.494+05:30

Rapid advances in machine learning and the spectacular success of artificial intelligence software in, say, self-driving cars, voice recognition and chatbots for customer service, is sending shivers of anxiety through IT employees. The havoc that robots and automation technology has played with the jobs of blue collared workers on the shop floor, is now travelling upward into white collar



Facebook : How it meddles with your mind

2017-08-10T15:15:55.515+05:30

Facebook is the mythical 800-lb gorilla in the media world that, as the original joke goes, “sits down wherever it wants to”. With 1.2 billion pairs of eyeballs eyeing it every day, it has an audience greater than any American, European or Asian TV news network, newspaper or online news portal. This immense reach also makes it the most effective medium of entertainment. In societies where it



OLAP Data Cube with SQL

2017-07-27T16:36:34.680+05:30

As an erstwhile DBA, a long time user and a great admirer of the SQL language -- that has stood the test of time for the last 30 years -- I have always sought to use SQL in many useful ways. In an earlier post, I had shown how SQL can be used to solve a classic data science problem, namely Clustering, using the K-Means algorithm and today, I demonstrate how SQL can be used to process OLAP data



Quantum Computers

2017-06-30T11:26:54.121+05:30

Quantum mechanics is a subject that has the strange property of simultaneously being logically rigorous and yet completely counterintuitive. So much so, that even a towering intellect like Einstein could never bring himself to accept its principles even though products based on the same exist all around us. The earliest oddity, identified by Schrodinger, one of the founders of quantum mechanics



Order, Stability or Chaos?

2017-06-03T10:05:39.328+05:30

Global, national and local societies face many threats. We are threatened by enemies -- internal and external -- who want to destroy our way of life. We are plagued with environmental degradation as we quickly try to ramp up the economy and improve our living standards. Finally our own social systems are in tatters because efforts to mitigate the effects of the first two reasons are stymied by



Biohackers & Biohackspaces

2017-05-05T18:40:14.628+05:30

The ubiquity of computers and smartphones and the pervasive presence of digital technology means that everybody who is reading this article is familiar with hackers. Hackers, as we all believe, are evil people, who either create viruses that ruin our machines or access our computers to steal confidential information with the intention to cause harm. We also have ethical, or white-hat, hackers,



Beautiful and unusual gift from PMI West Bengal

2017-04-23T07:10:57.244+05:30

Yesterday, I had the good fortune to have been invited to speak at the PMI Regional conference where instead of the regular, and pointless, bouquet of flowers that is traditionally given to the keynote speaker, I was presented with the following certificate what this means is that PMI has paid Sankalptaru.org some money to plant 10 trees on my behalf and "my tree" is visible in at the URL






Spark with Python in Jupyter Notebook on Amazon EMR Cluster

2017-04-17T07:23:02.049+05:30

In the previous post, we saw how to run a Spark - Python program in a Jupyter Notebook on a standalone EC2 instance on Amazon AWS, but the real interesting part would be to run the same program on genuine Spark Cluster consisting of one master and multiple slave machines. The process is explained pretty well in Tom Zeng's blog post and we follow the same strategy here. 1. Install AWS Command



Spark with Python in Jupyter Notebook on a single Amazon EC2 instance

2017-04-21T12:28:46.202+05:30

In an earlier post I have explained how to run Python+Spark program with Jupyter on local machine and in a subsequent post, I will explain how the same can be done an AWS EMR cluster of multiple machines. In this post, I explain how this can be done on a single EC2 machine instance running Ubuntu on Amazon AWS. The strategy described in this blog post is based on strategies described in posts



Raja Shashanka and the Calendar in Bengal

2017-11-11T08:21:13.879+05:30

The origin of the Bengali calendar On Saturday, 15th April 2017 Common Era, Bengalis in India, especially in West Bengal, Assam and Tripura, will celebrate the 1st Baisakh, or “Poila Boisakh”, 1424 Bengal Era (BE) -- the start of the Bengali New Year. Most of us are aware that the globally used Common Era, or Christian Era, starts with the birth of Jesus Christ in 1 CE, but what exactly is



The Entangled Future of Man & Machine

2017-04-06T14:30:00.721+05:30

First we had computers, then we had the world wide web and now we are talking about IOT, the Internet of Things. Computers are now pervasive and have occupied every nook and corner of life. Artificial intelligence seems to be growing bigger, faster and smarter everyday. Science fiction writers have often spoken of machines taking over the world but is that pure fantasy or is it a matter of time



Time Travel

2017-03-25T09:45:54.764+05:30

A historical perspective “What is time?” Asks James Gleick, in this history of Time Travel. “We know that it is imperceptible. It is immaterial. We cannot see it, hear it or touch it. Time is what clocks measure. But what is a clock? An instrument for the measurement of time. The snake swallows its tail again!” This is the kind of circular logic that the author tries to break out of in this



Faster, Cheaper .. CRISPR

2017-02-18T09:45:40.998+05:30

Let us imagine a quaint little colony where you and I live in peace but this peace is very often disturbed by outsiders who come in and dump garbage or play loud, ear-splitting music. What do we do? We collect photographs of the items that have created a nuisance in the past -- garbage bins, sound systems --  and store them in a photo album. We hire guards and give them  copies of photographs



Asimov’s Children - Robots in Space

2017-01-28T09:17:28.552+05:30

When I was a child, we used to spend Durga Puja at the foot of the Ayodhya Hills, Purulia where one of the fascinations was to spot artificial satellites, with our naked eyes, as they darted through the stars across the night sky. This Deepawali, parked in the pristine gardens of the Tumsong Tea Retreat near the dreamy town of Ghoom, Darjeeling, I was looking forward to a similar sky show when



Donald Trump -- why am I not perturbed?

2017-01-23T09:09:40.154+05:30

I just read in the newspapers that Donald Trump has been sworn in as 45th President of the United States and so the world is about to come to an end. It is the end of globalisation and the beginning of new protectionist order where the new mantra is buy American and hire American. It is the end of liberal democracy and the beginning of a new Putin-style illiberal autocracy. Francis Fukuyama and



Habitats in Space : Our Second Home

2016-12-25T17:31:27.152+05:30

If not on Earth, where else can humans beings be? Not as a traveller in a spacecraft or as a one-off tourist on the Moon but as an immigrant, or a colonizer who sets up a permanent residency for multiple generations. Given our current knowledge of physics and the state of propulsion technology, we really do not have the ability to travel to other stars in a reasonable amount of time, so our



Chidananda Rupaha Shivoham

2016-12-10T07:18:58.338+05:30

One of the finest expositions of the Indic School of Thought. Shivoham (शिवोऽहं ) by Adishankara - performed by John Scottus Students from Rutger Kortenhorst on Vimeo.



Engineering India for the Space Age

2016-11-28T07:19:50.014+05:30

Elon Musk may have suddenly become the glamourous mascot of a new, post Apollo, space age but the fact remains that the destiny of mankind is among the stars. While many people will keep on trying to salvage what remains of spaceship Earth from the environmental, social and political scourges that threaten it, it is but inevitable that a significant, space faring community will emerge that will



Smart-wallets to facilitate demonetisation

2016-11-24T12:58:07.845+05:30

The demon of demonetisation has scared the living daylights out of India’s cash-based economy. Whether the aam-aadmi is indeed suffering or whether the quantity of black money unearthed justifies the collateral discomfort is best debated on the sterile but bloody timelines of social media, but what we need right now is a way to facilitate payments -- small, ad-hoc payments -- that keep the



K-means Clustering with SQL

2016-11-20T08:23:36.772+05:30

Ever since I started my career in software and IT as a database administrator, I have had a great fascination, if not love, for the SQL language. I also know that there are many in the software fraternity (and sorority) who share my comfort with using SQL. Even after moving into the current enthusiasm, or should I call it a fad, with data analytics, I see that there exists many who prefer the