Apache Spark

Do you want to play Beach Volleyball, just for fun? Are you a bit unfit, a bit old, or a bit Terrible? Want to have a relaxed game and maybe a drink after? Then Terrible Beach Volleyball is for you! NOT SUITABLE for competitive players - we just want to have fun with no pressure.

Andere drücken die Schulbank, wir aber wollen in gemütlicher (und realer) Atmosphäre wieder aufeinandertreffen und einen Deutsch-Spanisch-Tandemkurs aufleben lassen. Beim einfachen Zusammenkommen und kennenlernen lässt es sich schließlich viel effektiver lernen. und Spaß haben. ...

## Rhythm, Connection & Latin Energy #### Step into the world of Salsa, get to know new Friends & feel the music uplifting Your mood. ‍ This class invites You to explore connection, flow & expression through one of the most vibrant and social dance styles. Whether You are stepping onto the dancefloor for the first time or looking to refine Your basics, this session is designed to meet You where You are. Led by Ankit, a Berlin-based creative with over 10 years of experience on and off the dancefloor, this class blends structure with warmth and passion. Specializing in Salsa, Kizomba, and Bollywood, Ankit brings a unique teaching style that makes learning feel natural, engaging & fun. ‍ > In this one-hour session, You will learn the foundations of Salsa, develop timing and coordination & most importantly, enjoy the connection between music, movement & people. Expect a welcoming atmosphere, clear guidance & a space where You can build confidence and simply enjoy the dance. ‍ ##### PARTNER NEEDED? You are welcome to join on Your own or come with a partner. We will form pairs on the spot, creating a relaxed, social & inclusive atmosphere where everyone can connect and feel comfortable. ‍ Come to feel supported, energized, inspired & celebrate the joy of Salsa. ‍ **TICKETS:** available: at the Box Office before the class ‍ See You Soon. Love. Ankit & DNA. LEVEL: All levels WHAT YOU NEED: salsa shoes (recommended, not necessary) COSTS: €15 Regular (Online / Box Office) \- Free for DNA\. Members

As requested by many, we will now open our space for meditators every Monday from 8 to 9PM to just sit quietly and practice their own meditation. The support of our powerful temple, including the traditional Buddhist shrine, has been widely appreciated. Countless enlightened teachers have visited this space and taught there, retreats and group practices have happened here for more than 20 years. This is the ideal place for your Monday evening meditation. Note: Everyone is welcome. Note: Now, bookable through USC (Urban Sports Club) or just come by and donate via cash, bank transfer or paypal, minimum donation of 5 EUR.

📢 WICHTIG 📢 Diesmal organisieren wir das Treffen draußen, im Tilla-Durieux-Park gegenüber The Playce in Potsdamer Platz. Wir sitzen auf dem Gras, wo der Boden flach ist. Wenn möglich bring bitte Picknickdecken mit.

🇬🇧 **Japanese Language Kaiwa! #9** Hi guys, unfortunately I had to cancel the other event. I originally planned it for Saturday the 23rd, but I accidentally set the event for the wrong week, and next Saturday I won’t be available. So I’d like to try having it on Monday the 25th instead, since it’s a holiday. I know it’s super short notice, but I still wanted to give it a try. It’ll probably be a small group, but that’s ok. The rest stays the same: Meeting point at **Mauerpark**, starting at **4:00 pm.** Feel free to bring picnic blankets, drinks or snacks for yourself, or something to share with the group. Apologies for the confusion, and hopefully see you there! Mauro ーーーー 🇯🇵 **日本語会話会 Kaiwa! #9** みなさん、こんにちは！ 残念ながら前回のイベントはキャンセルすることになってしまいました。もともとは5月23日（土）に開催する予定だったのですが、間違えて別の週でイベントを作成してしまい、その日は参加できなくなってしまいました。 なので、祝日でもある5月25日（月）に開催してみようと思います。 かなり直前のお知らせになってしまいましたが、それでもやってみたいと思いました。たぶん少人数になると思いますが、それもそれでいいかなと思っています。 他の内容はそのままです！ 集合場所は**Mauerpark**、**16時**スタートです。 ピクニックシートや飲み物、お菓子など、自分用でもシェア用でも自由に持ってきてください。 混乱させてしまってすみません。 もし来られたら、ぜひ会いましょう！

-DROP IN - *(English below)* **Lindy Hop \| Swing Dance** Klassen (fast jeden Montag) 19:00 Uhr Starter 20:15 Uhr Improver / Refresher Für mehr Informationen & Kosten, bitte hier schauen: [SWING PATROL KOLLE 37](https://www.swingpatrolberlin.com/sp-kolle37.html) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Classes (almost) every Monday 19:00 Uhr Starter 20:15 Uhr Improver / Refresher For more information & cost, please look here: [SWING PATROL KOLLE 37](https://www.swingpatrolberlin.com/sp-kolle37.html)

While we are approaching the middle of the year and KotlinConf is just over - we are thrilled that Trade Republic hosts us again! So mark the date! **Line-Up:** 👉 **Lists, Sequences, and Flows: Scaling Data Processing in Kotlin without Melting Your Memory.** *by Daniela Valero* In this talk, Daniela shares her journey of meeting a major backend deadline while managing a data pipeline's memory footprint. You’ll learn how to transition from eager List operations to lazy Kotlin Sequences and jOOQ Streams (using database fetchSize chunking) to keep memory usage flat. Finally, we’ll explore using Kotlin Coroutines and Flow to introduce safe concurrency so your data processes quickly without straining your database. 👉 **The show must go on** *by Blagoja "Baki" Stamatovski* **👉 TBD** **Speaker Bios:** 🗣 **TDB**

Erlerne Meditations- und Entspannungsverfahren kennen und sorge damit für mehr Bewusstheit und Stressreduktion in deinem Alltag.

Join us for an evening on the practical side of AI agents. We'll dig into context engineering and why relevance matters more than prompt tricks, then look at what it takes to run autonomous agents safely alongside humans. Food and drinks provided — stick around after for networking. ✍️ RSVP asap as capacity is limited so grab your spot asap! 📅 **Date and Time** Wednesday, May 27, 2026 from 18:00-20:45 📍 **Location** [EBCONT office, beyond Quartier Heidestrasse, 34, 10557 Berlin](https://maps.app.goo.gl/aQGPgteqhQ2yrmx96) 📝 **Agenda** 18:00 – Doors open, arrivals and check-in 18:20 – Welcome note by EBCONT 18:30 – **Agent Builder Hope is not a strategy — relevant context for data driven agents** by Anderson Queiroz — Elastic *What are agents and context engineering? And why we think the "center of gravity" for context engineering is much more about relevance and your data than only prompts and memory management.* 19:00 – Q&A & quick break 19:15 – **Adapting to AI in Security** by Jenny Pinheiro — Tines *Best practices for autonomous AI and human interaction in the context of workflows.* 19:45 – Pizza, drinks & networking \*\*\* Invite your friends and join us for an evening of learning and networking with fellow engineers and speakers! Thank you to **EBCONT** for hosting and to **Tines** for teaming up with us on this one!

✅**Please fill the** [SIGN UP FORM HERE](https://forms.gle/LaifWkFTDRn4gweQ7) **to join this Speed Friending event and spark connections** Looking to meet new people thru a fun and engaging experience ? Whether you're single, taken, or it’s... complicated, this event is for you! Join us for a unique **Traffic Light Speed Friending experience** to meet friendly faces with an interactive introduction, speed friending rounds with fun conversation cards, and enjoy Italian pizza together, everything is designed to help you spark connections 💖 🚦**The** **Traffic light concept** Upon arrival, you’ll receive colour-coded name tags that reflects your intensions so there’s no mixed signals 😉 💚Green – Single & open to date 🧡Orange – It’s complicated or just confused, but you’re open to making new friends ❤️Red – Taken, just here to make friends 👀**Here’s What to Expect:** 🙋🏻‍♀️**Starting with introduction & Guess the fun facts:** we’ll display the intro and fun fact you submitted on screen, and everyone will guess who it belongs to. It’s a fun way to learn about each other while skipping repetitive introductions and small talk. 🍕**Italian Pizza & a Welcome drink** – Mingle with each other over yummy italian pizza & drinks. Optional Spark Tote bag with fun questions printed on the merch where you can choose from the form when you sign up. 🚦**Traffic Light Speed Friending Rounds** – you will rotate every 5 minutes with conversation cards on the table to make the conversation easier so you can have fun discussions and skip the small talk. 🏆**Fun ice breaker games I designed with Prizes:** er and end the night with laughter 🎤**Optional Karaoke** at the end to sing to night away 👀[Sneak peak of our last speed friending event on Instagram ](https://www.instagram.com/reel/DPY7jWGCFvd/?igsh=Mm0yb2ppZTlhZnp4) ️🎟️**Ticket Price:** €35 Includes all activities, Italian break & Pizza, and a welcome drink (Student discount or unemployment discount available, just let us know in the form what’s you can contribute) ✅**Please fill the** [SIGN UP FORM HERE](https://forms.gle/LaifWkFTDRn4gweQ7) **to join this Speed Friending event and spark connections** 🚦Traffic light concept Upon arrival, you’ll receive colour-coded name tags that reflects your intensions so there’s no mixed signals 😉 💚Green – Single & open to date 🧡Orange – It’s complicated or just confused, but you’re open to making new friends ❤️Red – Taken, just here to make friends 👀Here’s What to Expect: 🙋🏻‍♀️Starting with introduction & Guess the fun facts: we’ll display the intro and fun fact you submitted on screen, and everyone will guess who it belongs to. It’s a fun way to learn about each other while skipping repetitive introductions and small talk. 🍕Italian Pizza & a Welcome drink – Mingle with each other over yummy italian pizza & drinks. Optional Spark Tote bag with fun questions printed on the merch where you can choose from the form when you sign up. 🚦Traffic Light Speed Friending Rounds – you will rotate every 5 minutes with conversation cards on the table to make the conversation easier so you can have fun discussions and skip the small talk. 🏆Fun ice breaker games I designed with Prizes: er and end the night with laughter 🎤Optional Karaoke at the end to sing to night away 👀Sneak peak of our last speed friending event on Instagram ️🎟️Ticket Price: €35 Includes all activities, special asian snacks & Momo dumplings, and a welcome drink Great news! Student discount or unemployment discount also available, just let us know in the form what’s within your budget. ✅Sign up HERE Please fill the SIGN UP FORM HERE to join this Speed Friending event 🔗 Traffic light speed friending WhatsApp Group: https://chat.whatsapp.com/FZJK9k42VJi2hl5PMMOvTj?mode=gi_t to get to know each other before the event 💖Check our vibes on Insta: https://www.instagram.com/sparkevents_510 Don’t miss out on an afternoon of joy, laughter, and meaningful new connections in a fun, vibrant atmosphere! Can’t wait to see you all soon! 🫶🏼

**Bob on Tour – IBM Bob live erleben 💙** Wie fühlt sich ein agentischer Coding Assistant im echten Entwicklungsalltag an? Bei **Bob on Tour** kannst Du IBM Bob gemeinsam mit Expert:innen hands-on ausprobieren. In einem eintägigen, technisch fokussierten Format arbeitest Du an realistischen Coding-Aufgaben, von geführten Labs bis zur Anwendung auf eigene Use Cases. Dabei lernst Du, wie Bob Entwicklungsworkflows ergänzt, Codebasen verständlicher macht und mehrstufige Aufgaben unterstützt. **Das nimmst Du mit:** ✅ Sicherer Umgang mit den wichtigsten Bob-Funktionen ✅ Praktische Erfahrung mit agentischer Coding-Unterstützung ✅ Impulse für reale fachliche und technische Problemstellungen 👉 **[Jetzt anmelden und IBM Bob live erleben](https://luma.com/5g0x9318)**

Looking for a fun, energizing way to move your body and meet new people? Join us for a Silent Disco Hip Hop Dance Workout a unique experience that combines music, movement, and connection 🎧💃 ✨ What to expect: • Fun icebreaker games to get to know each other • A full-body Hip Hop dance workout (beginner-friendly) • Learn cool dance move with silent disco experience • Spark Connections over a fun time We’ll kick things off with fun, easy icebreaker games to get to know each other. Then enjoy a 1-hour guided silent disco dance workout (with your own Bluetooth headphones) with dance music and simple moves. No experience needed! Come solo or with a friend, you’ll leave feeling energized, uplifted, and connected 💫 👉 Join the WhatsApp group to connect before the event: https://chat.whatsapp.com/GaUmXBIg1oy4BtYgxuxEsu?mode=gi_t 📸 Check our vibes on Instagram: https://www.instagram.com/sparkevents_510

Welcome to the PyData Berlin May meetup! We would like to welcome you all starting from 18:00. There will be food and drinks. The talks begin around 18.30 and the doors will close at 18:45. **Make sure to arrive on time!** Please provide your first and last name for the registration because this is required for the venue's entry policy. If you cannot attend, please cancel your spot so others are able to join as the space is limited. **Host**: **GetYourGuide** is excited to welcome you to this month's version of PyData. \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* The Lineup for the evening **Talk 1: Text2SQL in the Wild — Agentic Workflows & Semantic Models on Customer Data** **Abstract**: Translating a business user's natural language question into a reliable SQL query has huge value for business analysts, but doing it accurately at scale, on messy enterprise data, for complex queries, is incredibly difficult. This talk walks through a production Text2SQL system built on four pillars: semantic models built on customer data, RAG-based semantic search, an agentic verification and correction loop for building the SQL, and an evaluation framework for the entire process. Raw schema information is not enough for text2sql to work. Rather, thorough documentation including business metrics, synonyms, and qualified example queries, are required. We'll cover how to automate this documentation pipeline by mining query logs, generating descriptions with LLMs, and organizing everything into a knowledge graph and vector search index. From there, we'll dive into the agentic flow that takes a user question and iteratively generates, validates, and fixes SQL against a live database. The agentic framework analyses syntax errors and execution results to help it fix the SQL. Participants will leave with practical takeaways on RAG architecture for structured data, agentic retry patterns, and how to think about evaluation for Text2SQL systems in production. **Speaker**: Oren Matar **Bio**: Oren Matar is a principal data scientist and algorithms developer, with a background in social sciences and Bayesian methods. He specializes in NLP and time series forecasting, as well as agentic methods for data retrieval and processing. **Talk 2: Interpreting and Communicating Statistical Models** **Abstract**: Extracting actionable insights from complex statistical models remains a challenge, as raw coefficients are often uninterpretable due to nonlinearity, interactions, or hierarchical structures. This talk introduces a unified framework for model interpretation based on the principles of the Marginal Effects project ([https://marginaleffects.com/](https://marginaleffects.com/)). We move away from internal model parameters toward quantities of interest, such as marginal effects and adjusted predictions that translate statistical output into the "natural language" of the data. We will demonstrate these concepts in Python using the Bambi interpret module, showcasing a seamless workflow for interpreting Bayesian models built on PyMC. The audience will learn how to use the four primary interpretative pillars: Predictions, Comparisons, Slopes, and Marginal Means to compute average marginal effects and visualize conditional relationships. By the end of this session, you will be equipped to turn sophisticated GLMs and multi-level models into clear, rigorous narratives that are easily communicated to stakeholders. **Speaker**: Juan Orduz **Bio**: Juan is a Mathematician (Ph.D. Humboldt Universität zu Berlin) and Principal Data Scientist at PyMC Labs. He is interested in interdisciplinary applications of mathematical methods. In particular, time series analysis, Bayesian methods, and causal inference. **Lightning talks** There will be slots for 2-3 Lightning Talks (3-5 Minutes for each) between the two main talks. Kindly let us know if you would like to present something :) \*\*\* NumFOCUS **Code of Conduct** THE SHORT VERSION Be kind to others. Do not insult or put down others. Behave professionally. Remember that harassment and sexist, racist, or exclusionary jokes are not appropriate for NumFOCUS. All communication should be appropriate for a professional audience including people of many different backgrounds. Sexual language and imagery are not appropriate. NumFOCUS is dedicated to providing a harassment-free community for everyone, regardless of gender, sexual orientation, gender identity, and expression, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of community members in any form. Thank you for helping make this a welcoming, friendly community for all. If you haven't yet, please read the detailed version here: https://numfocus.org/code-of-conduct \*\*\*

**Latest 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 speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

Newark Area Traders and Exchangers Please join us! You won't want to miss this meeting! We have new investor topics every week. Finally, we will go over properties for sale, needs, and wants. Please carve out time to come join us Friday at 8 a.m. EST Don't forget to like us on Facebook, Newark Area Traders and Exchangers. NEWARK AREA TRADE & EXCHANGERS 975 Mt. Vernon Rd. (Entry at the front doors) Newark, OH 43055 Dues are $5 minimum per person, per week. Part of this goes to our treasurer to fund the meeting and the balance to the church for the use of their room. “Opportunity for Generosity”! Founders: Gerald DePalmo and Furman Tinon (and others) Established 60 +/- years ago and still going strong! Zoom meeting. Topic: NEWARK AREA TRADE & EXCHANGERS Time: 08:00 AM Eastern Time (US and Canada) Please download and import the following iCalendar (.ics) files to your calendar system. Weekly: [https://us02web.zoom.us/meeting/tZcrfuuoqTMvH9Ox4pAJb3wmj1KuwP_Vuylj/ics?icsToken=98tyKuGrqDIoGtOdtRyARpwqBIr4a_TwtlxYgvpyhEv1IgpRMRT7PLNpJ6VPL-7F](https://us02web.zoom.us/meeting/tZcrfuuoqTMvH9Ox4pAJb3wmj1KuwP_Vuylj/ics?icsToken=98tyKuGrqDIoGtOdtRyARpwqBIr4a_TwtlxYgvpyhEv1IgpRMRT7PLNpJ6VPL-7F) Join Zoom Meeting [https://us02web.zoom.us/j/83692078557?pwd=OXNKVGk4alRPNG1BdlNhdFNDQTFSUT09](https://us02web.zoom.us/j/83692078557?pwd=OXNKVGk4alRPNG1BdlNhdFNDQTFSUT09) Meeting ID: 836 9207 8557 Passcode: 215853 One tap mobile +13462487799,,83692078557#,,,,\*215853# US (Houston) +16699006833,,83692078557#,,,,\*215853# US (San Jose) Dial by your location +1 346 248 7799 US (Houston) +1 669 900 6833 US (San Jose) +1 929 205 6099 US (New York) +1 253 215 8782 US (Tacoma) +1 301 715 8592 US (Washington DC) +1 312 626 6799 US (Chicago) Meeting ID: 836 9207 8557 Passcode: 215853 Find your local number: [https://us02web.zoom.us/u/kc1yVEZLS1](https://us02web.zoom.us/u/kc1yVEZLS1)

**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 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** TBD

Click Here For More Videos: https://www.facebook.com/share/r/17bwkttXhV/ *********************************** Salsamante Dance Academy will be at Swerve Every Tuesday Night to share the Rhythm & Energy of Bachata & Salsa. These are Beginner Level lessons to get you comfortable and understand the two dances. Spread the Good News to all. Swerve Dance & Fitness Complex 640 Lakeview Plaza Blvd A, Worthington, OH 43085 Bachata 7pm-8pm Salsa 8pm-9pm $15 - One Lesson $20 - Both Lessons

ASH is Atheists, Skeptics and Humanists of First Unitarian Universalists of Columbus Ohio TBD Snacks are usually available, and you are welcome to bringing something to share!

While some are still meeting online, this is an in person event. Please note that we have attendees of all levels of speaking, including some native speakers. All are welcome! Also, as we meet at the same time and place each week, many don’t RSVP on the app, so we will likely have more attendees than noted here. Note: if you are asked to pay and upgrade the Meetup app, this is not necessary. You can ignore this and still attend our meetings. Find us on our [Facebook group](https://www.facebook.com/share/g/1EKw86WJCp/?mibextid=wwXIfr).

Join us as we get together to see Paul Rudd in the latest comedy-drama-musical from John Carney, POWER BALLAD! The film follows a washed-up wedding singer, a fading boy band singer and a stolen hit song. Here’s a description, trailer and plan for this event: DESCRIPTION: Rick, a washed-up wedding singer, and Danny, a fading boy band star, bond over music and a late-night jam session. When Danny turns Rick's song into a hit, Rick sets out to reclaim the recognition he believes he deserves. Power Ballad is written/directed by John Carney, the master of the modern musical and creative mind behind Once, Begin Again and Sing Street! It stars Paul Rudd, Nick Jonas, Peter McDonald, Marcella Plunkett, Havana Rose Liu and Jack Reynor. BUZZ & ACCLAIM: The film premiered to rave reviews at this year’s Dublin International Film Festival where critics call it “a sure-fired crowd-pleaser” that “just might be the feel-good hit of the year!” Others say, “Paul Rudd delivers a career-best performance in this charmer” that’s both “hilarious and deeply moving!” SUMMER OF ICE CREAM, VOL 2: SHAKE NO. 8! Ranked the #1 Ice Cream Shop in Columbus in 2024, this is the perfect place to kick off our Summer of Ice Cream and grab a sweet treat after the show! Their menu features an array of traditional, specialty and vegan shakes, hot cocoa, and more! You can check out their full menu here: [https://www.shakeno8.com/menu.php](https://www.shakeno8.com/menu.php) PLAN: We’ll plan for a 7pm-ish showing and will meet in the lobby area about 20 minutes before the show. Once showtime is announced, advance ticket purchase is advised! Once you have yours, please list your seat number in the Comments section of this event. We'll head to nearby Shake No. 8 immediately following the show! Should be a fun one, Dan