Neo4j

**🚀 Join our free Budapest Data Science Meetup!** In our first session, Tamás Németh from DataHub will explore the evolution of data catalogs into "Metadata Control Planes," explaining how authoritative context is the secret sauce for preventing "confident but wrong" AI agents. Then, Daniel Darabos, CTO of LynxKite will take us into the world of biotech, demonstrating how GPU-accelerated screening is fast-tracking drug discovery by targeting G-protein coupled receptors with unprecedented speed. **📅 Date & venue:** * **26 March 2026, Thursday, from 6 pm** * **Shapr3D Office 1054 Budapest, Akadémia u. 6. · Budapest** **Please note that the event's official language is English! By attending this event you agree to be photographed. Let us know if you would not like to appear in these pictures. We may use the pictures in social media.** **Schedule** **17:45 gates open** **17:45-18:15 Warmup and chit-chat** **18:15-19:30 Talks** **19:30 - 21:00 Drinks, snacks, networking** **Beyond the Catalog: The Control Plane for Modern Ecosystems and Agentic AI** **[Németh Tamás](https://www.linkedin.com/in/nemetht/),** [DataHub ](https://www.linkedin.com/company/datahub-cloud/) Software Engineer @ DataHub. Building Datahub, the open-source metadata catalog. Previously led the data-engineering team at Prezi and worked on a platform to fulfill all of the analytical needs at scale. Tamas is also a committer in the Apache Gobblin project. Abstract: Traditional catalogs are no longer sufficient for today’s complex, decentralized landscapes. This session explores their transformation into Metadata Control Planes, the operational “central nervous system” for enterprise information. As AI agents replace humans as primary consumers, this infrastructure becomes the critical bedrock for Context Engineering. Unlike people, these autonomous systems act directly on the information they find without seeking clarification; they require authoritative context to avoid “confident but wrong” outcomes. We will demonstrate how to repurpose your existing lineage, quality signals, and business glossaries to provide the provenance and semantic clarity these models crave. Discover how to evolve a passive inventory into a high-performance engine for reliable, enterprise-grade AI. **Drug discovery with AI: Targeting G-protein coupled receptors with GPU-accelerated screening** Abstract: GPCRs are an important but difficult drug target. The receptor we are focusing on, called Mas, has an important role in regulating the cardiovascular system and muscle growth. A natural compound that activates Mas is in phase 3 trials for treating old-age muscle loss (sarcopenia). As it's based on a plant extract, only a limited supply can be produced. The search is on for a highly efficient, safe, synthetic alternative! Join us to learn more about our GPU-accelerated solution for scoring billions of potential drug molecules with a variety of models. \*\*[Daniel Darabos ](https://www.linkedin.com/in/darabos/)\*\*is the CTO of **[LynxKite](https://www.linkedin.com/company/lynxkite/)**. He has studied at BME and worked at Google and Lynx Analytics previously. He's currently applying his experience with building data science and AI applications to drug discovery for age-related diseases.

“Resentment is like drinking poison and then hoping it will kill your enemies.” ― Nelson Mandela **(In english!)** Throughout history, human societies have wrestled with division. When identity hardens into polarization, coexistence becomes fragile. Differences can escalate into civil conflict, deepening distrust and resentment that often persist for generations. Yet history also offers rare examples of a different path: moments when cycles of hatred did not spiral into further violence, but instead turned toward reconciliation. In this session we will explore **Ubuntu** — the African ethical philosophy that shaped the moral framework of leaders such as Nelson Mandela and Desmond Tutu. Ubuntu — “I am because we are” — proposes that identity is not purely individual but relational. Even those we oppose remain part of our shared collective. This insight may be the hidden condition behind successful reconciliations. Beyond South Africa’s transition from apartheid, we can examine other cases of reconciliation: the American post–Civil War, the reconciliation between France and Germany, Japan’s postwar transformation, and the peace process in Northern Ireland. **Introduction of guests (15 minutes)** We start with a short introduction of the guests. **Kérdések (1 óra 45 perc)** 1. According to Ubuntu why is hope better than optimism? 2. Are we living in a time of self-respect? 3. Can Ubuntu be applied to someone who opposes Ubuntu? 4. What happens when “we” includes people who reject your values? 5. How does Ubuntu work when conflict is on-going? 6. Can the strength of the collective sometimes go the wrong direction? How to avoid that? 7. Have you put yourself in the shoes of someone you deeply reject? 8. How can we compare the european reconciliation with the South African or North-Irish reconciliations? 9. What is more important for reconciliation: leadership or strong institutions? 10. Can forgiveness be compatible with justice all the time? Is there a point where forgiveness becomes injustice? 11. Why is truth so important in reconciliation? 12. Can reconciliation hold when material inequality persists? 13. Can ubuntu help to undo polarization? 14. How can we apply ubuntu to social media? 15. Is ubuntu a way of individual-to-social maturity? 16. Is polarization a symptom of moral seriousness — or moral immaturity? 17. Is polarization driven more by inequality or by identity? **RSVP:** Please confirm your attendance here on Meetup to save your space and if you cannot assist, yield your space to another person in the waiting list. We welcome donations from 400 HUF to keep the costs of the meetup (If Paypal doesnt work, dont worry, you can donate on location with cash, Revolut, or transfer)

Please sign up in advance! Hot Paprika Presents: Budapest’s Best Pub Quiz! Register here: https://forms.gle/JKjGn4aGBr1r1dF48 Join us for the Hot Paprika Pub Quiz at A&O Hostel Budapest, kicking off at 8 PM! This isn’t your average trivia night—it's hosted by comedians, so expect uncomfortable laughs, unexpected twists, and an unforgettable time! What to Expect: Diverse Topics – From pop culture to history, no subject is off-limits! Comedian Hosts – The hilarious Tauseef Parvez & Fanni Pinter will keep you entertained. Big Prizes – Weekly winners score free comedy show tickets & bar discounts . Grand Prize – The season’s top team wins a 20,000 HUF bar tab! First Event: Donation-Based – Come, play, and support the show however you can! Gather your team, sharpen your wits, and let’s make trivia night legendary! Register now and don’t miss out!

**Step into Bitcoin’s wild beginnings with pioneer miner #20 and blockchain innovator Dan Conway, the top U.S. government official shaping blockchain standards!** As a seasoned professor and longtime Bitcoin/blockchain strategist who’s taught at Notre Dame, Indiana University, Virginia Tech, and now leads U.S. national blockchain standards under INCITS, Dan brings decades of deep tech perspective. Hear him unpack Bitcoin’s genesis, cutting‑edge ideas like quantum‑inspired consensus, and bold glimpses into blockchain’s future or even possibly the identity of Satoshi. The location for this event is Puzl CowOrKing in Budapest, Lajos u. 126, 1036. Doors open at 6:00 PM with the event kicking off at 7:00 PM. Join us for an exciting evening of talks, networking, and great people! (Please note speaker will be remote but meetup is in-person at Puzl)

El objetivo de este encuentro es romper el hielo, hablar de las historias que nos gusta escribir, de por qué escribimos, de los libros que nos gusta leer, de qué dificultades encontramos al enfrentarnos al folio en blanco y de qué esperamos del grupo. En definitiva, se trata de conocernos como personas para entendernos como escritores. No importa si has escrito diez novelas, cuatro cuentos o el precioso título de un poema sin versos. Aquí todo aspirante a juntaletras es bienvenido.

Mit jelent neked a szabadság? Mennyire vagy szabad? Tudsz-e beszélni, érezni, mozdulni, szeretni, gyűlölni, hibázni, sírni vagy nevetni szabadon? Mikor érzed a legfelszabadultabbnak magad? A szabadság korlátoz vagy a korlátok/határok adnak szabadságot? Mi az, ami visszatart? A szabadságom az enyém vagy másé? Ezen a 6 alkalmas foglalkozáson belekóstolunk a művészetterápia palettájába - alkotunk, szöveggel dolgozunk, zenét hallgatunk, mozgunk és kapcsolódunk - szabadon, a saját tempónkban. Mert mi is a lényeg? Megélni azt, aki valójában vagy, szabadON. A foglalkozást vezeti: Nyerki Jennifer (művészet- és szocioterapeuta jelölt) Esemény: [https://www.facebook.com/events/1549730646255791/1549730656255790](https://www.facebook.com/events/1549730646255791/1549730656255790) Időpont: kéthetente csütörtökön, 17:45-20:45 (3 óra) Az első alkalom végén elköteleződés. Március 26. Április 9. Április 23. Május 7. Május 21. Június 4. Helyszín: Safespace Műhely, 7. kerület Részvételi díj: 8,500 HUF / alkalom Jelentkezéshez töltsd ki az űrlapot: [https://forms.gle/hLj19fa3QTbeAxBU9](https://forms.gle/hLj19fa3QTbeAxBU9)

Practice Buddhist meditation in the middle of Budapest! The meditation is suitable for beginners. Each regular meditation is guided and begins with a short introduction. (all together is about 30-40 minutes) Our regular Buddhist meditations have proven popular with people who want to integrate authentic Buddhist methods into their daily lives. For the modern lay person who is juggling work, relationships, and an active role in society, we teach a meditation that is easy to learn, and profound and powerful for experienced practitioners. The meditation originates from the Karma Kagyu tradition of Tibetan Buddhism. It has a cumulative effect on mind, leading to greater clarity and calmness. Fearlessness, joy, and active compassion are the result of regular practice of Buddhist meditation. * Do I need any special clothing? No special clothing needed. * Does the attendance cost anything? No, the meditation is free.

This month's topic is the all-in-one green platform beeco. If you are: * working or interested in sustainability, * interested in bringing climate action into your current role, * or just looking to grow your network, exchange ideas, and connect with like-minded people, …this event is for you! Whether you are new to Budapest, a local or just visiting, we encourage you to join us on the 27th March at 18:00 in the city center for a friendly event to mingle with like-minded people. Our events are in English, so don't worry if you don't speak Hungarian. **Let's meet at KUBIK Coworking office!** \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **What to expect:** 1. 17:45 - 18:00: Attendees arrive. 2. 18:00 - 18:10: **Greetings and introduction** 3. 18:10 - 18:50: **[Kristóf Hegedűs](https://www.facebook.com/hkristof1/) \- What is an all\-in\-one green platform?** Everybody has a really busy life these days, but humanity has an urgent topic to find a solution for: sustainability! How can a person do its best? What should I do? At beeco we are working on it and we hope you also have some ideas! Let’s build it together! 4. 18:50 - 20:00: **Mingling** Have thought-provoking conversations and exchange ideas with other community members on the topic of sustainability. Drinks and snacks included! This event's speaker is *Kristóf Hegedűs, co-founder of [beeco](https://www.beeco.hu/en)*: *A certified biomechatronics and medical engineer, rock climber, nature lover, and explorer, he is driven by his desire to live in harmony with nature in a more eco-friendly world.* \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Let's share, learn, and build something meaningful together! **Note**: The talks will be recorded and published on YouTube. By attending this event you accept that you might appear in a photo or video taken and published by the organizers. If you wish to remain private, please let us know on-site before the event. This event is hosted and organized by [Lombiq Technologies](https://lombiq.com/).

Join us for the new session of our discussion series **“A Night With…”**, where we dive into timeless myths and their universal messages. Following our last session, where we explored the duality of Apollinian & Dionysiac, this the time to delve into the journey of Orhpeus. **What to expect:** * I will open the meetup with a short introduction to Orpheus’ myth and share (or suggest) a few possible interpretations and connections. * After that, the floor is yours! Bring your thoughts, reflections, and any links you see between this myth and other domains, e.g. literature, art, philosophy, psychology, history or even your own creative work. * If you’re an artist and your work resonates with the divine twins' story, feel free to share it with the group. **Before the event:** Take 5 minutes to read the quick snippet of Orpheus’ myth (provided below👇🏽) and think of: * A book, artwork, or personal reflection that relates to her story. * Any modern parallels or insights you’d like to discuss. This is a space for **open dialogue, creativity, and shared exploration**. ### **🫧The story of Orpheus in Brief** **🎼Orpheus is the legendary poet–musician** of Greek myth, famous for playing the lyre so beautifully that animals, trees, and even stones were said to be **moved by his song.** He marries Eurydice, a nymph (or mortal woman in some versions), and their happiness is brief: Eurydice dies suddenly, most commonly after being bitten by a snake while fleeing danger or wandering in the fields. Stricken with grief, Orpheus refuses to accept her death. **He descends alive into the Underworld to bring her back.** There, his music softens the hearts of the rulers of the dead, Hades and Persephone. Moved by his devotion and the power of his art, they agree to release Eurydice, on one condition: Orpheus must lead her upward to the world of the living without looking back at her until they have both reached the surface. Orpheus begins the ascent, hearing her footsteps behind him but unable to see her. Near the exit, at the threshold between darkness and daylight, **doubt and longing overwhelm him**. He turns to look. In that instant Eurydice is lost again, fading back into the Underworld, unreachable. Orpheus tries to follow, but the passage is closed to the living; he is forced to return alone. After this second loss, Orpheus withdraws from love and society. In many versions, he is eventually killed violently (most famously torn apart by maenads). Even then, the myth insists that his song persists: his severed head and lyre continue to “sing” as they drift downstream, and the lyre is later placed among the stars as a constellation. 📃📜**Principal ancient sources:** * Plato, *Symposium* * Apollonius Rhodius, *Argonautica* * Virgil, *Georgics* * Ovid, *Metamorphoses* * Pausanias, *Description of Greece* * Hyginus, *Astronomica* * | | | --- | |

Hello everyone, Take a break from your week, make progress on your reading in good company, then join a relaxed chat about what everyone's been reading. ️Schedule 10:30 \- 11:00 \| Arrival & Introduction round 11:00 \- 12:00 \| Silent Reading Hour 12:00 \- 13:00 \| Chat & Discussion **The After-Event (New Trial!)** \* This Saturday, we’re trying something new: heading to a nearby café for a coffee or sandwich. We’ll see if there’s a need for this kind of "after-session" style, so feel free to join and help us test it out! Location Metropolitan Ervin Szabo Public Library, Boulevard Library It will take place in the event room. After you enter the library, turn right, cross the lounge, and go down the stairs at the far end. If you bring snacks, you can have them in the lounge area. Whether you're a regular or a first-timer, you're welcome. See you there! **[Facebook Page](https://www.facebook.com/people/Budapest-Silent-Book-Club/61567388151835)** (previous books read in sessions) **[Goodreads](https://www.goodreads.com/group/show/1271292-budapest-silent-book-club)**[ ](https://www.goodreads.com/group/show/1271292-budapest-silent-book-club)(monthly book club voting) **[Silent Book Club](https://silentbook.club/pages/about-us)** (the idea itself, where did it come from?) **Support Us** This is a free event, but Meetup has its own fee. If you'd like to contribute and help keep this going, you're welcome to donate via Revolut, every bit helps! [Donate via Revolut](https://revolut.me/schmidtpeter) We keep track of all donations in this [spreadsheet](https://docs.google.com/spreadsheets/d/1C_N9CN_pQO5aUYezqzQW4GS7pr8IfplchwG8-ruZ19g/edit?usp=sharing) — full transparency! sheet for it

**IMPORTANT: If you haven't already, please make an account on [budapestracketclub.com](https://budapestracketclub.com/), soon it will be our main platform for scheduling events. Thank you!** We’ve confirmed our reservations for two courts and we are all set for our upcoming badminton session! Here are the details: * **Date:** Sunday, 29 March 2026 * **Time:** 12:00 - 14:00 * **Location:** Tüskecsarnok –[ Google Maps](https://maps.app.goo.gl/urUMXA9WHcp3xJjb6) * *Note*: Navigating to this pin will take you directly to the ramp leading down to the entrance of the sports center. If you need help, reach out via WhatsApp or MeetUp! This will be a relaxed afternoon: open rallying on three available courts with players rotating into mixed doubles as numbers allow. No strict schedule—just come ready to play and meet fellow badmiton enthusiasts. **Skill Level** We welcome players of all skills, ages, and abilities. There are no level expectations, but be prepared to play with mostly beginner and intermediate players and adjust your expectations accordingly. The goal is to have fun and enjoy the game! **Need a Racket?** Loaner rackets are available; please reach out via WhatsApp or the comments if you’d like one set aside. **Costs** This will depend on the final number of attendees but please be prepared to pay **at most** 3,000 Ft per person for the court rental. We will confirm the final price on the day of. **Next steps:** 1. **Create an account on** [https://budapestracketclub.com/](https://budapestracketclub.com/) 2. **RSVP on MeetUp** so we can track attendance and confirm court numbers. 3. Spread the word—the larger our community, the sooner we can set up more recurring sessions, tournaments, and social events: * **Website:** [https://budapestracketclub.com/](https://budapestracketclub.com/) * **WhatsApp:** [https://chat.whatsapp.com/Dofz0CpQIpU5bNhcvbw0g9](https://chat.whatsapp.com/Dofz0CpQIpU5bNhcvbw0g9) * **Facebook Group:** [https://www.facebook.com/groups/budapestracketclub](https://www.facebook.com/groups/budapestracketclub) See you on the court!

Every Saturday at 8:00 PM, we gather in the city to share languages, cultures, and conversations. [[Click this whatsapp groupchat link to join](https://chat.whatsapp.com/CGM1Jm8JfNS291xA1zMobk) ] Our group is made up of friendly 20s–30s people — locals, expats, and travelers alike — who come together to meet new people and explore different ways of thinking. Whether you’re new to Budapest or call it home, this meetup is your chance to connect in a relaxed, open-minded space. Join us to swap stories, practice new languages, and build genuine friendships across cultures.

FlowDan’s Mix is a Latin-inspired dance party workout. High energy, easy-to-follow choreographies, and nonstop good vibes! Each class has a theme we dance through Class fee: 2500 Huf 5 class pass: 10000 Huf

.

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: Type Annotations with John Cassidy We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

**New Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

**First meetup of the Columbus AI Engineering group.** We’ll kick things off with a practical, beginner-friendly discussion on: **How LLMs like ChatGPT actually work — and how to build real applications with them.** We’ll cover: * what’s actually happening under the hood (at a high level) * why LLMs behave the way they do (hallucinations, prompt sensitivity, etc.) * how people are building real systems with them today * where things break in practice This will be a **short, informal talk (\~15–20 min)** followed by open discussion and Q&A. Whether you’re an engineer, builder, or just curious about how modern AI systems work, you’re welcome to join. No slides, no fluff — just real conversation about real systems. We’ll hang out afterward and get to know each other.

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 **Abstract** Web Forms gave .NET developers a powerful abstraction for building reusable UI controls long before design systems were a thing. Web Components finally bring that same idea to the browser natively. This session explores how the Web Forms mindset translates into Custom Elements, Shadow DOM, and HTML templates. We’ll examine how Web Components enable design systems that work across frameworks, how they differ from server‑driven controls, and why they’re becoming a foundational layer for modern UI. Whether you’re maintaining legacy apps or building greenfield projects, you’ll leave with a practical understanding of how to apply familiar patterns in a modern, standards‑based way. **YouTube Link** TBA

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow

The Humanist Monthly Program is our longest running event and still a community favorite. In the old days it used to be called "Going to HCCO" and we still like to think of it as our flagship event. We will be hearing from Becca Powell, Director of Advocacy and Outreach at Unchained At Last, an organization whose mission is dedication to ending forced and child marriage in the United States through direct services and systems change. Unchained At Last's mission clearly meshes and addresses several of our Humanist Ten Commitments. Becca will educate us about an issue many of us may not be familiar with--but should be. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Going forward our meetings will be hybrid. You can meet us in-person or attend online Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC) The formal presentation will start at noon