December 2020 19
Apache Airflow Readings
Posted By : Alexander Goida

I accumulate here the list of articles which have interesting information about Apache Airflow. Subjects of the articles covers topics from installation and management to implementation of DAGs and best practices.

January 2020 17
Siddhi: Update partially in-memory table
Posted By : Alexander Goida

Siddhi is a language which belongs to the group of Streaming SQL languages, offering SQL-like approach to process data streams. This short code snippet shows one of the basics scenarios when you need to update

January 2019 04
Data Science Group level up
Posted By : Alexander Goida

I’m very exciting to tell you that with Data Science Society of Sofia we’re launching a continuous event for everyone who wants get real experience with Data Science. You definitely need to got to the

September 2018 22
Bike Sharing Demand Questions
Posted By : Alexander Goida

Recently a group of enthusiasts in Data Science which I lead had a discussion about Kaggle competition Bike Sharing Demand. I presented a possible solution and during discussion were raised several questions which I was

March 2018 15
Data Science Glossary
Posted By : Alexander Goida

In this article I put everything which I think important to be aware when you start learning Data Science. It includes math, statistic, DS concepts. I put examples where I can. The article is updated

March 2018 10
Data Science self-assessment topic list
Posted By : Alexander Goida

Running a group by specialization is connected with understanding of the current awareness of the group about the subject that they’re interested in. This knowledge gives the opportunity to build a relevant road map for