Hands-on Primer on Rasa – Part 3

In Part-3 of this primer series, we will enhance the custom Rasa helper chatbot such that, it is configured, trained, and deployed once, to leverage data from an external source for future knowledge expansion.

Here is the link to the article on enhanced Rasa custom helper chatbot:

Hands-on Primer on Rasa – Part 3

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Hands-on Primer on Rasa – Part 2

In Part-2 of this primer series, we will configure, train, and deploy a custom Rasa commands’ helper chatbot, which will help the users’ of the chatbot on what Linux command to use for a given situation.

Here is the link to the article on Rasa custom helper chatbot:

Hands-on Primer on Rasa – Part 2

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Hands-on Primer on Rasa – Part 1

In Part-1 of this primer series, we will provide an overview of the Rasa chatbot platform, setup an instance using docker, and get our hands dirty using both the command-line shell as well as the REST API endpoint.

Here is the link to the article on Rasa:

Hands-on Primer on Rasa – Part 1

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Hands-On with RFID/NFC

Most of us have been using some form of a badge or tag to enter the office building OR tap a credit card to make a payment at the checkout.

Ever wondered what is really going on behind the scene when we tap a card on the card reader ???

This is where the RFID/NFC technology comes into play. We will leverage a Raspberry Pi 4 along with a Mifare RC522 RFID module to get our hands dirty. Here is the link to the article demonstrating the concept of RFID/NFC:

Hands-On with RFID/NFC

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The JVM ‘Invoke…’ Instructions

Ever taken a peek at the Java bytecode of a class to see what is really going on under-the-hood especially with the various method calls ???

There are five different JVM method invocation instructions and they come into play at different scenarios. Here is the link to the article introducing the various JVMinvoke…‘ instructions:

The JVM ‘Invoke…’ Instructions

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Introduction to Apache Calcite

Ever wondered what is the common ingredient behind some of the most popular Big data frameworks, such as Apache Drill, Apache Druid, Apache Flink, Apache Phoenix, Dremio, and others ???

Apache Calcite is a popular open source Java framework for building and managing data sources using the SQL language. Here is the link to the article introducing Apache Calcite:

Introduction to Apache Calcite

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