Tagged: Free and Open Source

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Getting started with SystemML

I have been exploring data as part of work and hobby for a long time. My process mostly involves clean up, analyze and visualize. Something that has always interested me but never gotten around to experiment was recommendations. I have done some rudimentary recommendations but never deep dive into it. Never explored machine...

M57 Ring Nebula 0

Exploring Astronomy with Internet connected telescopes

As a teenager I was very curious about stars and galaxies. Only time we could get to see something related was an yearly school trip to Jawaharlal Nehru Planetarium, Bangalore. As I grew up my interest moved to technology from science. Mostly because technology gave me an opportunity to tinker with. When I...

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Introduction to Querying JSON using JSONata

JSON is the defacto data format for web APIs. Usually getting the data you want out JSON means iterating through the arrays, find if the key exists and then accessing the data. It usually doesn’t stop there if you want to do some kind of aggregation. So its writing loops after loops. But...

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Going Serverless with OpenWhisk

I have been using Webhooks for a long time now. Webhooks are HTTP callbacks. They usually get called with HTTP Post request on an event. For example system one does a POST request on system two when something changes on system one. These are typically used by heterogeneous systems for plumbing. In my...

Expo Browser Preview 0

Expo.io – Building Android and iOS Apps using React Native Made Easy

I have used MIT’s AppInventor in class rooms. All non-professional programmers appreciate how easy it is to use AppInventor to create apps. I have also seen lot of professionals using it to create one time use apps including me. It’s a great tool except you can’t generate an iOS app. On the side...

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Community Created Free and Open Maps of India

Since the beginning of Data{Meet} maps have been hottest discussion subjects. Data{Meet} community has contributed to various maps over the years. But Data{Meet} is a small part of much bigger mapping community in India. This community has created a variety of free and open maps in India which institutions have failed to deliver...