Are you a data analyst who works with Spark and often gets confused by failures you don’t understand? Marcin Szymaniuk will present a case study of multiple DataFrame queries in Spark which initially do not work and a step by step of how to fix them. berlinbuzzwords.de/18/session/dat…

It's almost time for #bbuzz 2018 to begin! Join us today from 15:00 for the Barcamp, a series of short discussions driven by you, the attendees berlinbuzzwords.de/18/barcamp-bar

My #bbuzz talk is about to start! You can find slides here: goo.gl/ku6wgA and first use case I will talk about: goo.gl/VwKePJ

In case you didn't get a chance at #bbuzz 2018 you can watch Marcin Szymaniuk's talk – DataFrames in Spark - the analysts perspective - on our YouTube channel youtu.be/4Lngj22dFiA

When pushed with the GDPR, @spotify gives you a huge amount of telemetry data from their app (for me, 850mb of JSON files). Includes your A/B testing history, anything you've ever drag-dropped, connected, so on. This is how software works today.

#geecon Prague 2018 Call For Papers is now open! Join us! 2018.geecon.cz/cfp/

This thoughtful article by Martin Fowler on the pros and cons of remote working is made even better by featuring a tortoise on a rocket-powered skateboard 🐢🔥 martinfowler.com/articles/remot…

Get the analysts perspective on DataFrames in Spark from Marcin Szymaniuk as he presents a case study of multiple DataFrame queries in Spark which initially do not work and explains step-by-step how to fix them. youtu.be/4Lngj22dFiA

In the run up to 2019's 10th edition of Berlin Buzzwords we are planning some very special events for you. We are very excited to announce that we will be hosting an Apache Spark Workshop on November 22nd, 2018. Details here: berlinbuzzwords.de/19/news/apache…

Save the date! We are thrilled to announce the dates for Berlin Buzzwords 2019. Our 10th anniversary edition takes place from 16-18 June 2019 at Kulturbrauerei in the heart of Berlin. Details here: berlinbuzzwords.de/19/news/save-d…

Simple, but common problem with shuffle in Spark. Something I will be talking about at @Geecon tomorrow. #geecon tantusdata.com/spark-shuffle-…

Join us for a full day of Apache Spark! On November 22nd, 2018 we are holding an Apache Spark workshop for beginners presented by Marcin Szymaniuk (Marcin Szymaniuk) at idealo Berlin. Details and tickets here berlinbuzzwords.de/19/apache-spar…

No plans for June so far? We present you two more exciting satellite events! You can either participate in Marcin Szymaniuk's Apache Spark workshop for beginners or learn everything about Elasticsearch with Philipp Krenn. Be quick, seats are limited! Learn more here: berlinbuzzwords.de/19/hackathons-…

Check out our satellite events on 19 June 2019! We recommend you three very special events: MICES, Marcin Szymaniuk and Philipp Krenn invite you to more talks, workshops and more discussions about E-commerce, Apache Spark orElasticsearch. Learn more here: berlinbuzzwords.de/19/hackathons-…

Before "You want machine learning", insert "Have you tried heuristics?" Try something simple first. If you go to machine learning, benchmark your models by comparing to something simple. Are they better than random? Moving average? Linear regression? Most ML users cannot answer

During the #Covid19 response, data and analytics has been heavily used, but also gravely misused, or not sufficiently used. I recorded a presentation where I go through ... youtu.be/e54W1UonQH0 slideshare.net/lallea/mortal-… #analytics #dataops 1/n

Forgive the self-congratulatory retweet… I must say I worked hard on the text’s flow, not just the facts, so I’m glad to see it appreciated. x.com/julianbrowne/s…

My slides from the #CodestarNight : slideshare.net/MarcinSzymaniu…

Slides for #ApacheSpark presentation at bit.ly/2rlA86h #javadayistanbul

Hello #GeeCON, you can find my slides there: bit.ly/2rlA86h