

What we’re about
Python Data Enthusiasts and Users, Data scientists & Statisticians of all levels from Slovakia.
This meetup group is for Data Scientists, Statisticians, Economists and Data Enthusiasts using Python for data analysis and data visualization. The goals are to provide Python enthusiasts a place to share ideas and learn from each other about how best to apply the language and tools to ever-evolving challenges in the vast realm of data management, processing, analytics, and visualization.
------------------------------------
Organizers:
GapData Institute (https://www.gapdata.org/) (GDI) is a nonprofit nonpartisan research institution harnessing power of data & wisdom of economics for public good.
|| Data. Think. Change. ||
--
NumFOCUS (http://www.numfocus.org/) is a 501(c)(3) nonprofit that supports and promotes world-class, innovative, open source scientific computing. The mission of NumFOCUS is to promote sustainable high-level programming languages, open code development, and reproducible scientific research. We accomplish this mission through our educational programs and events as well as through fiscal sponsorship of open source data science projects. We aim to increase collaboration and communication within the scientific computing community.
------------------------------------
Our PyData Slovakia & Bratislava (Facebook group) you can find here: https://www.facebook.com/groups/1813599648877946/
Our PyData Slovakia & Bratislava (Twitter account) here: https://twitter.com/PyDataBA
Our PyData Slovakia & Bratislava (LinkedIn group) here:
https://www.linkedin.com/groups/13506080
All materials from previous meetups on GitHub here: https://github.com/GapData/PyDataBratislava
Presentations from previous meetups on Slideshare here: https://www.slideshare.net/GapDataInstitute
Recordings of previous meetups on our YouTube here: https://www.youtube.com/watch?v=XYpKpmapqjI&list=PLISV6olKXnd9pE-KPtPgwwLe6qPXvb9K7
------------------------------------
PyData is an educational program of NumFOCUS, a 501(c)3 non-profit organization in the United States. PyData provides a forum for the international community of users and developers of data analysis tools to share ideas and learn from each other. The global PyData network promotes discussion of best practices, new approaches, and emerging technologies for data management, processing, analytics, and visualization. PyData communities approach data science using many languages, including (but not limited to) Python, Julia, and R.
The PyData Code of Conduct governs this meetup. To discuss any issues or concerns relating to the code of conduct or the behavior of anyone at a PyData meetup, please contact NumFOCUS Executive Director Leah Silen (+1 512-222-5449; leah@numfocus.org) or the group organizer.
Sponsors
See allTalk Title: "Under the Hood of LLM"
Description: In this talk we unveil the inner workings of Large Language Models (LLMs), explore the architecture of Transformers and how chatbots and AI agents works underneath. This talk also dives into the concept of Model Context Protocol (MCP), the limitless potential that it offers and how it differs from RAG and other protocols like A2A. Join us for an in-depth look at how these powerful AI models that you already use on daily basis really work, how they process data, generate responses and redefine and push the boundaries of artificial intelligence.
Speaker/Bio: Radovan Kavicky
Radovan Kavicky | President & Principal Data Scientist @ GapData Institute
https://www.linkedin.com/in/radovankavicky/ & https://radovankavicky.substack.com/
Radovan currently works as President & Principal Data Scientist at GapData Institute/GDI Institute and is an expert in XAI (Explainable AI), i.e. the field of scientific research at the intersection of mathematics and artificial intelligence, he also works as a AI Consultant (AI IXX/Dubai, UAE) for the implementation of AI and Data Science knowledge in business, economics and public administration
- in April 2025 he successfully completed the prestigious AI Connect program (nominated in 2024 as the only Slovak) under the auspices of the US Department of State (Bureau of Cyberspace and Digital Policy) and the Atlantic Council GeoTech Center, which aims to help countries such as Slovakia transfer technology and knowledge in the field of AI towards responsible and successful implementation in public administration and the economy
- in April 2024 he was invited (keynote) to represent the CEE region and Europe as the historically first Slovak at the Global AI Show 2024 in Dubai (with 10k+ attendees one of the world's largest AI events)
- previously a member of Slovak.AI and until May 2024 also worked as Data Science & AI Evangelist at AIslovakIA - National Platform for the Development of Artificial Intelligence in Slovakia and in cooperation with MIRRI/MIRDI (Ministry of Investment, Regional Development and Informatics of the Slovak Republic) led a mission of Slovak AI researchers at University of Cambridge
- Radovan is a member of several international and European professional and professional organizations in AI and data science, such as: British Computer Society (Member, #BCS), Slovak Economic Association (SEA), IEEE Computer Society (Member, #IEEE), Slovak.AI (#SlovakAI), CLAIRE/CAIRNE, European AI Alliance & TAILOR network, AAAI, EurAI, AI4SK, ELLIS, AIDA
- selected lectures from past: @Global AI Show (Dubai, 2024, Keynote) @WeAreDevelopers (Berlin, 2023) @TAILOR (Brussels, 2023) @CODECON (Bratislava, 2023, main talk) @DATAcated (New York, 2022) @PyData (Hamburg, 2022) @ML Prague (2023, 2022) @Data Science Summit (Warsaw, 2021) @PyData (Hong Kong, 2021) @ODSC Europe (London, 2021) @WeAreDevelopers (WeAreDevsLIVE, 2021) @Data Science Conference (DSG 5.0, 2019) @H2O.ai (Prague, 2019) @PyCon LT (PyData track, Vilnius, 2019) @VDSG (Linz, 2019) @TechSummit (Bratislava, 2017 & 2019) @PyData (Berlin, 2017)
LinkedIn: https://www.linkedin.com/in/radovankavicky/
Registration:
@Meetup.com group's event here (https://www.meetup.com/pydata-slovakia-bratislava/events/307439940/) & @Eventbrite registration here (https://www.eventbrite.com/e/pydata-slovakia-ba-meetup-29-radovan-kavicky-under-the-hood-of-llm-tickets-1335453710999). +our event you can find also @Facebook here (https://www.facebook.com/events/2193597837725593/) and LinkedIn here (https://www.linkedin.com/events/7320847136919564288/about/).
[Disclaimer: If you just mark "going" @Facebook event we can't guarantee your seat]
Language of the event: English
***
PyData Bratislava [Python Data Enthusiasts and Users, Data Scientists & Statisticians of all levels from Slovakia]
--
PyData is a group for users and developers of data analysis tools to share ideas and learn from each other. We gather to discuss how best to apply Python tools, as well as those using R and Julia, to meet the evolving challenges in data management, processing, analytics, and visualization. PyData is organized by NumFOCUS.org, a 501(c)3 non-profit in the United States.
The PyData Code of Conduct governs this meetup. To discuss any issues or concerns relating to the code of conduct or the behavior of anyone at a PyData meetup, please contact the organizer or NumFOCUS Executive Director Leah Silen (+1512-222-5449; leah@numfocus.org).
Our Facebook group you can find here: https://www.facebook.com/groups/1813599648877946/
Our Twitter account here: https://twitter.com/PyDataBA
Our LinkedIn group here: https://www.linkedin.com/groups/13506080
***
Organizers:
GapData Institute (https://www.gapdata.org/) (GDI) is a nonprofit nonpartisan research institution harnessing power of data & wisdom of economics for public good.
|| Data. Think. Change. ||
NumFOCUS (http://www.numfocus.org/) is a 501(c)(3) nonprofit that supports and promotes world-class, innovative, open source scientific computing. The mission of NumFOCUS is to promote sustainable high-level programming languages, open code development, and reproducible scientific research.
Upcoming events (4)
See all- PyData Slovakia @ ML Prague 2025O2 Universum, Praha
We’d like to announce that we are also this year [8th times in a row] community partner of the 10th edition of Machine Learning Prague conference, the European most practical Conference about AI & ML applications. If you are interested in participating, use this 15% discount code created for us when you purchase your conference and workshop tickets: pydatask15
---
The 10th international conference on Machine Learning and Artificial Intelligence applications, taking place in person in Prague and online.You can look forward to:
- 40 International Speakers
- 10 Hands-on workshops
- +1000 AI & ML enthusiast attendees
Learn more at mlprague.com
- PyData Slovakia & Bratislava Meetup #29 [Radovan Kavicky: Under the Hood of LLM]UNISPACE FEI STU, Bratislava-Karlova Ves
Talk Title: "Under the Hood of LLM"
Description: In this talk we unveil the inner workings of Large Language Models (LLMs), explore the architecture of Transformers and how chatbots and AI agents works underneath. This talk also dives into the concept of Model Context Protocol (MCP), the limitless potential that it offers and how it differs from RAG and other protocols like A2A. Join us for an in-depth look at how these powerful AI models that you already use on daily basis really work, how they process data, generate responses and redefine and push the boundaries of artificial intelligence.
Speaker/Bio: Radovan Kavicky
Radovan Kavicky | President & Principal Data Scientist @ GapData Institute
https://www.linkedin.com/in/radovankavicky/ & https://radovankavicky.substack.com/Radovan currently works as President & Principal Data Scientist at GapData Institute/GDI Institute and is an expert in XAI (Explainable AI), i.e. the field of scientific research at the intersection of mathematics and artificial intelligence, he also works as a AI Consultant (AI IXX/Dubai, UAE) for the implementation of AI and Data Science knowledge in business, economics and public administration
- in April 2025 he successfully completed the prestigious AI Connect program (nominated in 2024 as the only Slovak) under the auspices of the US Department of State (Bureau of Cyberspace and Digital Policy) and the Atlantic Council GeoTech Center, which aims to help countries such as Slovakia transfer technology and knowledge in the field of AI towards responsible and successful implementation in public administration and the economy
- in April 2024 he was invited (keynote) to represent the CEE region and Europe as the historically first Slovak at the Global AI Show 2024 in Dubai (with 10k+ attendees one of the world's largest AI events)
- previously a member of Slovak.AI and until May 2024 also worked as Data Science & AI Evangelist at AIslovakIA - National Platform for the Development of Artificial Intelligence in Slovakia and in cooperation with MIRRI/MIRDI (Ministry of Investment, Regional Development and Informatics of the Slovak Republic) led a mission of Slovak AI researchers at University of Cambridge
- Radovan is a member of several international and European professional and professional organizations in AI and data science, such as: British Computer Society (Member, #BCS), Slovak Economic Association (SEA), IEEE Computer Society (Member, #IEEE), Slovak.AI (#SlovakAI), CLAIRE/CAIRNE, European AI Alliance & TAILOR network, AAAI, EurAI, AI4SK, ELLIS, AIDA
- selected lectures from past: @Global AI Show (Dubai, 2024, Keynote) @WeAreDevelopers (Berlin, 2023) @TAILOR (Brussels, 2023) @CODECON (Bratislava, 2023, main talk) @DATAcated (New York, 2022) @PyData (Hamburg, 2022) @ML Prague (2023, 2022) @Data Science Summit (Warsaw, 2021) @PyData (Hong Kong, 2021) @ODSC Europe (London, 2021) @WeAreDevelopers (WeAreDevsLIVE, 2021) @Data Science Conference (DSG 5.0, 2019) @H2O.ai (Prague, 2019) @PyCon LT (PyData track, Vilnius, 2019) @VDSG (Linz, 2019) @TechSummit (Bratislava, 2017 & 2019) @PyData (Berlin, 2017)
LinkedIn: https://www.linkedin.com/in/radovankavicky/
Registration:
@Meetup.com group's event here (https://www.meetup.com/pydata-slovakia-bratislava/events/307439940/) & @Eventbrite registration here (https://www.eventbrite.com/e/pydata-slovakia-ba-meetup-29-radovan-kavicky-under-the-hood-of-llm-tickets-1335453710999). +our event you can find also @Facebook here (https://www.facebook.com/events/2193597837725593/) and LinkedIn here (https://www.linkedin.com/events/7320847136919564288/about/).
[Disclaimer: If you just mark "going" @Facebook event we can't guarantee your seat]
Language of the event: English
***
PyData Bratislava [Python Data Enthusiasts and Users, Data Scientists & Statisticians of all levels from Slovakia]
--
PyData is a group for users and developers of data analysis tools to share ideas and learn from each other. We gather to discuss how best to apply Python tools, as well as those using R and Julia, to meet the evolving challenges in data management, processing, analytics, and visualization. PyData is organized by NumFOCUS.org, a 501(c)3 non-profit in the United States.The PyData Code of Conduct governs this meetup. To discuss any issues or concerns relating to the code of conduct or the behavior of anyone at a PyData meetup, please contact the organizer or NumFOCUS Executive Director Leah Silen (+1512-222-5449; leah@numfocus.org).
Our Facebook group you can find here: https://www.facebook.com/groups/1813599648877946/
Our Twitter account here: https://twitter.com/PyDataBA
Our LinkedIn group here: https://www.linkedin.com/groups/13506080
***
Organizers:
GapData Institute (https://www.gapdata.org/) (GDI) is a nonprofit nonpartisan research institution harnessing power of data & wisdom of economics for public good.|| Data. Think. Change. ||
NumFOCUS (http://www.numfocus.org/) is a 501(c)(3) nonprofit that supports and promotes world-class, innovative, open source scientific computing. The mission of NumFOCUS is to promote sustainable high-level programming languages, open code development, and reproducible scientific research.
- PyData Slovakia & Bratislava Meetup #30 [Maryam Alimardani: Navigating the PhD]Swiss Re, Bratislava
Talk Title: "Navigating the PhD Journey"
Description: In this talk, we will share how PhD. research on robotics and brain-computer interfaces shaped her academic path as an interdisciplinary researcher who combines different approaches from various fields such as engineering, neuroscience, and human-computer interaction to address real-world problems. Maryam will present specific projects that exemplify this interdisciplinary approach, highlighting the challenges and lessons learned along the way.
Speaker/Bio: Dr. ing. Maryam Alimardani
Maryam Alimardani | Associate Professor @ Vrije Universiteit Amsterdam
https://www.linkedin.com/in/maryam-alimardani-a25a5b64/ & https://scholar.google.co.jp/citations?user=QGYjBQoAAAAJ&hl=enMaryam Alimardani is an associate professor at Vrije Universiteit Amsterdam in the Netherlands, specializing in brain-computer interfacing (BCI) and human-computer interaction (HCI). She earned her PhD from the Intelligent Robotics Laboratory at Osaka University, Japan. Her research focuses on developing BCI systems that facilitate personalized interactions with technology, particularly for adaptive training and learning purposes. By utilizing EEG brain signals and advanced AI models, she designs intelligent interfaces capable of monitoring users’ mental states—such as attention and workload—and delivering tailored feedback. Her work has integrated BCI systems into various interactive technologies, including virtual reality (VR) simulations and socialrobots, enhancing user control and overall experience.
And not only that/successful academic and top level AI researcher. Maryam's TED-Ed talk (Are you a body with a mind or a mind with a body?) has over 3 Million views and is also among the most viewed on YouTube platform as for this topic.
https://youtu.be/ILDy6kYU-xQ?si=b0RQq8Tnyr6YDqoQ
https://research.vu.nl/en/persons/maryam-alimardani https://sites.google.com/site/maryamalimardany/home https://www.researchgate.net/lab/Maryam-Alimardani-Lab-2 https://ieeexplore.ieee.org/author/37085
https://independent.academia.edu/MaryamAlimardani2s
https://www.catalyzex.com/author/Maryam%20Alimardani
https://www.youtube.com/watch?v=YjEwbAMrfH0
https://www.catalyzex.com/paper/predicting-workload-in-virtual-flightLinkedIn: https://www.linkedin.com/in/maryam-alimardani-a25a5b64/
Moderator and Host of the event:
Radovan Kavický, President & Principal Data Scientist @ GapData Institute; former AI & Data Science Evangelist @ AIslovakIA - National platform for AI development in SlovakiaFun Fact: Radovan already interviewed Maryam in past (IEEE conference/DISA in Košice) and was published here/if interested, you can find the interview here: Vedkyňa skúma, ako sa dá vidieť do mozgu. Pýtali sme sa, čo s tým robiť
Registration:
@Meetup.com group's event here (https://www.meetup.com/pydata-slovakia-bratislava/events/307510355/) & @Eventbrite registration here (https://www.eventbrite.com/e/pydata-slovakia-meetup-30-maryam-alimardani-navigating-the-phd-journey-tickets-1341011775319?aff=oddtdtcreator). +our event you can find also @Facebook here (https://www.facebook.com/events/1823801225067220) and LinkedIn here (https://www.linkedin.com/events/7322307170060935168/about/).
[Disclaimer: If you just mark "going" @Facebook event we can't guarantee your seat]
Language of the event: English
***
PyData Bratislava [Python Data Enthusiasts and Users, Data Scientists & Statisticians of all levels from Slovakia]
--
PyData is a group for users and developers of data analysis tools to share ideas and learn from each other. We gather to discuss how best to apply Python tools, as well as those using R and Julia, to meet the evolving challenges in data management, processing, analytics, and visualization. PyData is organized by NumFOCUS.org, a 501(c)3 non-profit in the United States.The PyData Code of Conduct governs this meetup. To discuss any issues or concerns relating to the code of conduct or the behavior of anyone at a PyData meetup, please contact the organizer or NumFOCUS Executive Director Leah Silen (+1512-222-5449; leah@numfocus.org).
Our Facebook group you can find here: https://www.facebook.com/groups/1813599648877946/
Our Twitter account here: https://twitter.com/PyDataBA
Our LinkedIn group here: https://www.linkedin.com/groups/13506080
***
Organizers:
GapData Institute (https://www.gapdata.org/) (GDI) is a nonprofit nonpartisan research institution harnessing power of data & wisdom of economics for public good.|| Data. Think. Change. ||
NumFOCUS (http://www.numfocus.org/) is a 501(c)(3) nonprofit that supports and promotes world-class, innovative, open source scientific computing. The mission of NumFOCUS is to promote sustainable high-level programming languages, open code development, and reproducible scientific research.
- Network event325 attendees from 135 groups hostingPyData London 2025Needs location
Get ready to unleash your inner data aficionado at PyData London 2025, happening June 6-8 at Convene Sancroft, St. Paul’s! This three-day, in-person event is your golden ticket to dive into live keynotes, talks, and lightning sessions alongside fellow data enthusiasts.
Have an idea you want to share? Submit your talk proposal by Feb. 24. Tickets sold out in 2024, so don’t wait—grab yours today! Buy Here
Past events (34)
See all- Network event114 attendees from 131 groups hostingPyData Virginia 2025This event has passed