Druid Learning

The recipe for successful A/B testing is quick computation, no duplication, and no data loss. So, we used Apache Flink and Doris to build our data platform.

A/B Testing was a Jerk, Until we Found the Replacement for Druid

Learn how TimescaleDB's compression features reduced storage needs by 83% while maintaining query performance.

PostgreSQL Couldn’t Handle Our Time-Series Data—TimescaleDB Crushed It

Learn everything you need to know about Big Data via these 361 free HackerNoon stories.

361 Stories To Learn About Big Data

Learn everything you need to know about Sql via these 213 free HackerNoon stories.

213 Stories To Learn About Sql

Learn everything you need to know about Database via these 369 free HackerNoon stories.

369 Stories To Learn About Database

My first experience with crypto wasn’t under very good circumstances: a friend who takes care of several servers at his job was infected with ransomware – and this malware was demanding he pay the ransom amount in a cryptocurrency called Monero (XMR). 

How I Power My Trading Bot with TimescaleDB

Do you know why microservice design is so popular within the development of BI tools? The answer is clear: it helps to develop scalable and flexible solutions. But microservice architecture has a great drawback. Its performance usually requires great improvements.

Business Intelligence in microservices: improving performance

<a href="https://blog.cerebralab.com/#!/a/Clickhouse,%20an%20analytics%20database%20for%20the%2021st%20century" target="_blank">You can read this article on my own blog, if you prefer that to medium.</a>

Clickhouse, an analytics database for the 21st century

<a href="https://getstream.io/" target="_blank">Stream</a> is an API that enables developers to build news feeds and activity streams (<a href="https://getstream.io/try-the-api/" target="_blank">try the API</a>). We are used by over 500 companies and power the feeds of more than 300 million end users. Companies such as Product Hunt, <a href="https://stackshare.io/under-armour/connected-fitness" target="_blank">Under Armour</a>, Powerschool, <a href="https://stackshare.io/bandsintown/bandsintown" target="_blank">Bandsintown</a>, <a href="https://stackshare.io/dubsmash/dubsmash-scaling-to-200-million-users-with-3-engineers" target="_blank">Dubsmash</a>, Compass and Fabric (Google) rely on Stream to power their news feeds. In addition to the API, the founders of Stream also wrote the most widely used <a href="https://github.com/tschellenbach/stream-framework" target="_blank">open source solution for building scalable feeds</a>.

Stream & Go: News Feeds for Over 300 Million End Users

In this part of the series, we will learn how to build <a href="https://hackernoon.com/tagged/graphql" target="_blank">GraphQL</a> endpoints with new AWS service called — AppSync <a href="https://aws.amazon.com/blogs/aws/introducing-amazon-appsync/" target="_blank">launched at the re: Invent 2017</a>. I will be creating a backend for a mini Twitter App using AppSync with DynamoDB, ElasticSearch, and AWS Lambda integrations and show you how to configure and deploy AppSync using new <a href="https://github.com/sid88in/serverless-appsync-plugin" target="_blank">Serverless-AppSync-Plugin</a>.

Running a scalable & reliable GraphQL endpoint with Serverless

As Developers, we’re often met with many different technologies, all new and foreign to us, and with someone telling us it’s the next big thing and we must learn it. I’ve listened to those people for years now and I’ve found some patterns for a suitable abstraction of what types of technologies should be in your toolbox. So here there are…

What Should be in a Coder’s Toolbox?

I often get asked which analytics tool one should use. This often leads to a large debate over the extremely large amount of tools on the market. I’ve been a big advocate of a few products in the analytics space and was previously the Head of Product at <a href="https://taplytics.com" target="_blank">Taplytics</a> (YC W14).

What we’re missing in product analytics

tl;dr The <a href="https://app.meeshkan.com" target="_blank">Meeshkan Machine Learning Public Beta</a> is officially live. Go learn something on it!

Meeshkan Machine Learning

Discover how 404 error pages evolved from technical glitches to powerful UX and branding tools that guide, engage, and delight users.

Error Pages Through the Ages: How Smart Brands Make Wrong Turns Feel Right

Metasploit is a strong tool used by security experts around the world to find and fix security problems, especially with remote access.

Turn Your Android into a Cybersecurity Toolkit with Metasploit and Termux

An in-depth study of Arabic websites highlights font inconsistency, cultural image practices, and future research directions for enhanced usability.

What's in Store for the Future of Arabic Web Design and Usability

In this paper, researchers propose a new majority voting approach to ransomware detection.


Majority Voting Approach to Ransomware Detection: References and Appendix

Majority Voting Approach to Ransomware Detection: Related Work

Leveraging LLMs for Generation of Unusual Text Inputs in Mobile App Tests: Conclusion and References

An article on the history, present and future of Machine Learning in trading.

How Useful are Computational Models to Traders in Their Decision Making?

From co-design workshops to a technology probe deployment, this article unveils a novel approach to dark pattern mitigation. 

A Roadmap for User Empowerment in the Dark Pattern Landscape

“Talking wanton nonsense.... Any professional archaeologist would laugh, simply laugh....”

THE ENCOUNTER AT STONEHENGE

The Witcher 3's fame as a story-based RPG has persisted half a decade since it first came out. We talk about our favourite story moments from the game. 

The Best Moments in the Witcher 3 

Exploring the role of consumer robots before, during, and after the current pandemic

Will the Robots (Finally) be Arriving?

In a sector that is experiencing massive digital disruption, we allow educational publishers \u0026 content creators unlock the digital potential of their existing content \u0026 open up new revenue streams that were previous inaccessible to them

DRUID LEARNING

druidlearning.com

1-10 emps

Since 2021

Druid Learning's stories on HackerNoon

A/B Testing was a Jerk, Until we Found the Replacement for Druid

PostgreSQL Couldn’t Handle Our Time-Series Data—TimescaleDB Crushed It

361 Stories To Learn About Big Data

213 Stories To Learn About Sql

369 Stories To Learn About Database

How I Power My Trading Bot with TimescaleDB

Business Intelligence in microservices: improving performance

Clickhouse, an analytics database for the 21st century

Stream & Go: News Feeds for Over 300 Million End Users

Running a scalable & reliable GraphQL endpoint with Serverless

What Should be in a Coder’s Toolbox?

What we’re missing in product analytics

Meeshkan Machine Learning

Error Pages Through the Ages: How Smart Brands Make Wrong Turns Feel Right

Turn Your Android into a Cybersecurity Toolkit with Metasploit and Termux

What's in Store for the Future of Arabic Web Design and Usability

Majority Voting Approach to Ransomware Detection: References and Appendix

Majority Voting Approach to Ransomware Detection: Related Work

Leveraging LLMs for Generation of Unusual Text Inputs in Mobile App Tests: Conclusion and References

How Useful are Computational Models to Traders in Their Decision Making?

A Roadmap for User Empowerment in the Dark Pattern Landscape

THE ENCOUNTER AT STONEHENGE

The Best Moments in the Witcher 3

Will the Robots (Finally) be Arriving?

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