Hadoop

📅 **Week 7: Presentation Day!** Each 7-week cycle focuses on a small, well-defined part of a larger system—and over time, these cycles build toward a complete, real-world project Feel free to join at any week and we will catch you up. There is no need to be at the beginning of the cohort to build. Complete beginners welcomed! 📌 By the End of a Full Cycle, You should Have 🎯 A working project in your own GitHub repo 🎯 A small but real portfolio piece you can demo or write about 🧠 **Current Project** This cycle’s shared project is an **image-based knowledge extraction system**. In **Week 7**, we celebrate and present. This is our **Showcase Night**. Participants will: * Present their project (5–10 minutes each) * Demo their pipeline or flashcard system * Share challenges, lessons learned, and technical decisions * Give and receive thoughtful feedback We’ve come a long way — from raw images on our phones to a complete, working portfolio project — and this week is about learning to clearly explain your ideas, your challenges, and the technical decisions behind your work. \*\*\* **👋 Who Is This For?** 🔹 Beginners who learn best by doing — no prior experience needed 🔹 Career switchers from product, engineering, design, marketing, or other fields who want to break into data 🔹 Analysts, engineers, and PMs looking to sharpen their skills or build real-world projects 🔹 Data professionals who want a creative playground outside of work 🔹 Anyone with big questions and a love for learning through experimentation \*\*\* **BUILD. LEARN. EXPERIMENT. OVER COFFEE.** Come hang out, meet like-minded people, and work on something fun. 📍 Based in Berlin – in-person meetups only (for now!) 💻 Laptops + ☕ highly encouraged Join our Discord → [https://discord.gg/dPnmzcCP8w](https://discord.gg/dPnmzcCP8w) Check out our program resources: [Google Drive](https://drive.google.com/drive/folders/15DmZqD4bLBk2vU4zpvh1HiB3_5n09v-q?usp=sharing) \*\*\* ✨ Who’s Hosting? I’m Lindsey, a senior data scientist working on AI, causal inference, and data products. I’ve built models for fraud detection, uplift modeling, and LLM-based systems. I am always open to suggestion for different format for this meetup.

Indoor Tennis-Infos: Max. 4 players on 1 court with licensed tennis coach Fees: 23€ (lesson with licensed tennis coach) Rackets: rent cost free (please notify via Whatsapp or SMS one day in advance) Shoes: Shoes with white sole & without profile. Option to rent a pair at the reception for a fee (2,5€ Cash)! court 1 See you on the court ;) The participant becomes a member of the sportclub association Tennis 'n Beach Rhein-Main Wiesbaden e.V. for the duration of the sporting event and accepts with their booking/participation the statutes TnB e.V. and the rules of procedure of the association called Geschäftsordung as well as the data protection rules. statutes TnB e.V.: https://tnb.pythonanywhere.com/static/documents/TnB-Satzung.pdf Geschäftsordnung: https://tnb.pythonanywhere.com/static/documents/TnB-AGB.pdf data protection: https://tnb.pythonanywhere.com/static/documents/TnB-Datenschutzerklaerung.pdf

**Fellow Humans, we're starting a book club!** We focus on understanding what's actually happening on the crowded stage of AI: the companies driving the AI race, the decisions being made on our behalf, and what it all means for the rest of us. Every few weeks, we'll choose and read one book together and talk about it. Bring your **thoughts**, your **questions**, your **highlighted passages**, and your **honest reactions**. **Our first pick: *Empire of AI* by Karen Hao**, who has worked for The Wall Street Journal and contributes to The Atlantic. *She argues that the pursuit of an artificial superintelligence has become its own figurative paper clip factory, devouring too much energy, minerals and human labour. She portrays OpenAI and other companies that make up the fast‑growing A.I. sector as a “modern-day colonial world order.”* (excerpt from the NYT review) **What to expect:** A relaxed, semi-structured conversation (around 2 hours). We'll dig into the themes together, share what stood out, and connect the ideas to what we're actually experiencing. **No expertise required, just read the book and show up curious.** **Why a book club?** Because some things can't be captured in a headline or a 60-second video. The questions AI raises for our work, our relationships, and our futures deserve more than a scroll. They deserve a real conversation with real people, and a book gives us common ground to start from. **After this first Meetup, you help define what's next!** Suggest books that have changed how you think about AI, technology, or what it means to be Human. This is your club. **No tech background needed. Just curiosity and willingness to think out loud with fellow critical thinkers.** **Join our [LinkedIn Group](https://www.linkedin.com/groups/10088542/) and [Substack](https://humanfuturehub.substack.com/)** for articles, perspectives, and resources between events. See you there, Your HFH Team! **Humans, together. Nobody is left behind.** ❤️

It's a 16 km round tour from/to **train station Dallgow-Döberitz**, starting on **Saturday** at **12:40** pm (RB21 arriving at 12:37). We'll be mostly in green areas and have a nice tour on paths that are moderately easy to walk (could be a bit sandy in parts). *nature preservation zone: chances to see wild ancient horse breeds and deer - in general a nice, open landscape (heathland/Heidelandschaft) *area is a former military training grounds, landscape mostly untouched by human Depending on the composition of the group, it should take us around **4.5 hours** for the **16 km** pure walking time. We'll be doing a few **shorter stops** (5-15 min), so no designated "lunch stop". Komoot [Route](https://www.komoot.com/de-de/tour/1390642365?ref=&share_token=a8JZCwsAwGMoPMfwrSMvM20UIVFeibYmeXxw6tKnol64HWx513) Please don't forget to BRING enough food, liquids and clothes, ... according to the weather forecast. Please, please, please try to be on time. If not, please understand that I cannot make +10 people waiting idly. I can share my live location for those who are late, but for the sake of the group (and my nerves) cannot communicate much via chats after we start. I'm not a professional guide and according to Meetup rules not liable for anyone's safety. We're all grown-ups, everyone should be able to take responsibility for themselves. If you can't make it, please be respectful enough to update your confirmation of participation in a timely manner, to give those on the waiting list a fair chance to prepare. Membership fees at the moment for Organizers are at 174 $ per year. I want to avoid collecting money for the events, but maybe someone likes to support a bit with a tip to alleviate the costs. buymeacoffee.com/JanFred See you!

**What if your AI agent could decide for itself when to call a tool, or ask another agent?** Welcome to **Sprint #3 of the Agentic AI Engineering Lab**, where we level up from building protocols to building *decision-making agents*. In this hands-on lab, you’ll create an autonomous agent that: * speaks the **A2A protocol** to collaborate with other agents * registers to an agent hub for discovery * connects to an **MCP server** when tools are needed * intelligently chooses ***when to delegate vs when to execute*** No lectures. Just systems thinking + real building. *** ### What We’ll Do * **10:00** \- Quick round of introductions * **10:15** \- Recap: AI Agents\, MCP Protocol and A2A Protocol * **10:30** \- Build your decision\-making agent * **12:00** \- Live demos \+ technical teardown * **12:30** \- Wrap\-up \+ takeaways *** ### What to Expect * Hands-on building, not passive listening * Real agent-to-agent experiments * Collaboration with fellow builders * Fast ideas, quick tests, lots of learning * Unexpected behavior (the fun part) *** ### What Not to Expect * Long lectures * Step-by-step tutorials * Sales pitches * Perfect code This is a **lab**; we learn by building, breaking, and iterating. *** ### ‍ Who Should Join Curious developers, tinkerers, and engineers, with basic knowledge of AI Agents. **Bring:** * Laptop with dev setup * Access to an LLM (Claude / OpenAI / Ollama) * Comfort building small things in any language *** ###

RSVP on Luma: https://luma.com/h4xm63a4 Silent Reading / Creating Club is a gathering for people who enjoy focusing together in public. Bring a book, a notebook, a sketchpad, knitting needles — whatever you’d like to spend a quiet hour with. All projects and all participants are welcome. ​This year is about creating more — quietly, consistently, imperfectly — and shaping environments that support that. If you’re building something of your own, you’re especially welcome here. ​We’re building a community of readers and creators who value depth, presence, and shared silence. The magic isn’t just in the quiet hour — it’s in the people who return and make it feel like a familiar room. ​(Please RSVP “yes” only if you can make it, so we can save a seat for you and others on the waitlist.) ​This quiet ritual unfolds at **W66 Café**. ​There’s no entrance fee, but please order at least one item from the café and don’t bring outside drinks 🙂 ​No assignments. No pressure. No productivity race. Just a shared hour of intentional silence, followed by relaxed conversation. 🕰 Our Agenda ​**10:30 – 11:00** Arrivals, ordering drinks/food, light social time ​**11:00 – 12:00** The Great Quiet Hour (Read. Write. Sketch. Code. Think. Sit.) ​**12:00 – 12:30** Optional socializing — share what you were reading or creating, or simply continue in quiet focus. ## **​🏡 House Guidelines** ​To keep this space calm and welcoming for everyone: ​• Silence during the focus hour (no calls or conversations) • Phones on silent mode • If using a laptop, please avoid meetings or audio — headphones welcome • Arrive before 11:00 if possible to minimize disruptions

A small NEXUS gathering built around movement rather than discussion alone. This is for high-bandwidth Mavericks who spend most of their time in conceptual thought and need some physical counterweight. Why bouldering? Because it’s deliberate: short problems, full focus, and immediate feedback. You’re on the wall, solving something tangible. The mental noise drops instantly! Conversations happen naturally in between climbs. No pressure, you move at your own pace. Some exchanges stay light. Others go deep. Both are fine. This is not about athletic achievement. It’s about presence, recalibration, and being around people who don’t require you to shrink or translate yourself. Come as you are. Try some bouldering problems. Rest when needed, and engage where it makes sense. **Bring comfortable clothes and climbing shoes if you have them (rentals are available at the gym).** *Registration equals commitment. If you sign up, you show up. Read the group description first and decide consciously. For context about NEXUS, visit our* ***[website](https://thenexusformula.com)*** *and* ***[newsletter](https://news.thenexusformula.com)****.*

**Worum geht’s?** Entdecke die Kraft der Worte – in Gemeinschaft. In dieser offenen Gruppe lesen wir gemeinsam kurze literarische Texte – Gedichte, Mikrotexte oder Auszüge aus längeren Werken – und lassen uns von ihnen zum Schreiben einladen. Nach dem gemeinsamen Lesen nehmen wir uns Zeit zum Nachdenken und Austausch. Anschließend schreiben wir 20–30 Minuten Seite an Seite – inspiriert von einzelnen Worten, Sätzen oder dem, was uns gerade bewegt. Im Mittelpunkt stehen nicht handwerkliche Aspekte, sondern das persönliche Erleben, das Gefühl von Verbundenheit und die Funken, die Worte in uns entzünden können – besonders für Menschen, die belastende Erfahrungen gemacht haben, und alle, die auf der Suche nach neuen Perspektiven sind. Wer möchte, kann am Ende den Text teilen, der während der Sitzung entstanden ist – genauso willkommen ist es, einfach nur zuzuhören. Das Teilen ist immer freiwillig. **Die Teilnahme ist kostenlos – und ohne Anmeldung möglich.** **Über die Gruppenleiterin** **[Ingrid E. Johnson](https://ingridejohnson.com/de)** ist Deutsch-Amerikanerin, Gründerin von RECASAS und Peer-Support-Spezialistin. Lesen und Schreiben haben ihr selbst durch schwierige Zeiten geholfen. Schreiben in Gemeinschaft bedeutet für sie eine andere Quelle von Kraft und Inspiration – und genau dieses Erlebnis möchte sie ermöglichen. Mehr Informationen hier: https://recasas.org/2025/10/01/lesen-schreiben-teilen/ In Zusammenarbeit mit RECASAS, im Rahmen der Sonntagsöffnung der Amerika-Gedenkbibliothek (ZLB), veranstaltet von artecom.

Indoor Tennis-Infos: Max. 4 players on 1 court with licensed tennis coach Fees: 23€ (lesson with licensed tennis coach) Rackets: rent cost free (please notify via Whatsapp or SMS one day in advance) Shoes: Shoes with white sole & without profile. Option to rent a pair at the reception for a fee (2,5€ Cash)! court 2 See you on the court ;) The participant becomes a member of the sportclub association Tennis 'n Beach Rhein-Main Wiesbaden e.V. for the duration of the sporting event and accepts with their booking/participation the statutes TnB e.V. and the rules of procedure of the association called Geschäftsordung as well as the data protection rules. statutes TnB e.V.: https://tnb.pythonanywhere.com/static/documents/TnB-Satzung.pdf Geschäftsordnung: https://tnb.pythonanywhere.com/static/documents/TnB-AGB.pdf data protection: https://tnb.pythonanywhere.com/static/documents/TnB-Datenschutzerklaerung.pdf

Join us for a relaxed, social run around Wannsee Island. One of the most scenic routes in Berlin. Distance: ~18 km (about 2 hours) Pace: easy and conversational, not a race Meeting point: 09:00 at S Wannsee. We start exactly at 09:00. Please don’t be late. If you’re running late, message in the chat. Important: • If you sign up but can’t make it, please let us know. • This is not a coached workout. We are not trainers — everyone is responsible for their own wellbeing. • There is no water provided and no water fountains on the route. Please bring your own. • There is no place to store bags/clothes. See you there!

AKRO YOGA Jeden 2. Sonntag: Kurs Jeden 1., 3., und 4. Sonntag: Open Jam 15 bis 18Uhr \*KURS\* Partner-Akrobatik im Offenen Wohnzimmer - Open Level Class Der Kurs richtet sich an alle, die noch nie Partnerakrobatik ausprobiert haben, aber motiviert und interessiert sind. Aber auch für Menschen, die schon Erfahrungen mitbringen, wird etwas dabei sein. Wir praktizieren L-Basing (bei der eine Person auf der Erde liegt und eine andere Person auf den Füßen oder Armen balanciert). Wir werden uns jede Woche mit einem neuen Flow beschäftigen, wobei unser Fokus vor allem auf sauberer Technik und Sicherheit liegt. Du kannst gerne alleine kommen, wir werden im Kurs Partner\*innen zum Ausprobieren der Flows finden. Du brauchst: Bequeme, eng anliegende Kleidung, etwas zu trinken. Matten sind vor Ort. \*OPEN JAM\* Partner-Akrobatik im Offenen Wohnzimmer - Offene Jam Du möchtest deine neu gelernten Flows und Figuren aus der Partnerakrobatik mit anderen Menschen ausprobieren? Dann bist du hier genau richtig. Wir wollen gemeinsam einen Raum schaffen, in dem wir gemeinsam an unseren Flows arbeiten und kreativ experimentieren können. Nach einem gemeinsamen Warm Up wird frei ausprobiert, um am Ende bei einem gemeinsamen Cool Down wieder zusammen zu kommen. Du kannst gerne alleine kommen, es wird genug potentielle Partner\*innen vor Ort geben. Du brauchst: Bequeme, eng anliegende Kleidung, etwas zu trinken. Matten sind vor Ort. \*\*\*\* Anmeldung erforderlich : melde dich bitte an unter [akro@filua.de](mailto:akro@filua.de)

This is a 3 phase meetup. You can come at any time. 1.) 6:45 -7:00 p.m.: Gathering at the meeting spot (see gmaps link!) 2.) 7:00 - 7:30 p.m.: Walk & Talk to the Kerb food court. 3.) 7:30 - 10:00 p.m.: Immerse conversations in the Kerb food court. 🪑: Reserved tables for the meetup. **1.) How to the find Quartier 205 Stadtmitte:** [https://goo.gl/maps/6Fhft3LbPhcEsQrdA](https://goo.gl/maps/6Fhft3LbPhcEsQrdA) The exact meeting spot can be seen in the photo below! We meet on the 1st floor where the trash sculpture can be seen. Look for a meetup sign or organizer wearing a black or red lanyard with "staff" written on it. **2.) Walk & Talk to the Kerb food court** The best part. This time we'll walk all the way to Checkpoint Charlie, pass the Gropius Bau and end at the former Sony Center where our final destination - the Kerb food court - is located. **3\. How to find the Kerb food court** [https://maps.app.goo.gl/xJTQg9oBoGL67syz7](https://maps.app.goo.gl/xJTQg9oBoGL67syz7) Kerb is located at the former Sony Center. The new flagship food court of Potsdamer Platz. Most likely we will be sitting upstairs on the first floor next to the bar (take the stairs to the left). ***Best ways to get there:*** 1\. U2 \(subway\): Get off at Potsdamer Platz and walk around 7 min to Kerb. 2\. Bus M41 or M85 Get off at Potsdamer Platz and walk 5 min to Kerb. *Who is this meetup for:* 1\. Internationals who want to practice German or any other language\. 2\. Germans who want to improve their language skills\. 3\. Anyone who is interested in cultural exchange and wants to socialize\. *What you can expect:* 1\. A professionally organized meetup that can adapt to any changes given the current situation\. 2\. A Walk & Talk to break the ice\. 3\. A collaborating venue where you can further socialize with other members\. *important:* This event is at the same time and meeting location like the "Asian Languages & Culture Exchange 🍜日本語, 한국어, 汉语🍥" one. So I'm basically organizing 2 events at the same time which means that you can expect way more people than on the list. *** Whenever you attend a meetup, the most common as well as first question you get is: "Where are you from?" You probably heard this question a million times. Well, at least I did. From my own experience of attending over 200 international meetups in various countries such as Germany, Japan, Australia and Thailand, I can tell you that asking for the name is a better approach. “A person’s name is to that person, the sweetest, most important sound in any language.” - Dale Carnegie If you really want to connect with like-minded people you should remember their name, but you don't have to remember every persons name you've talked you. Be picky about that, don't be me who can somehow remember everyones name easily. Don't tell yourself sth. like "I'm bad at remembering names." It's all about developing the habit of asking for a name and keep the conversation going on. Furthermore, you want to learn German or any other language. Learning the local language is crucial to connect with the locals and developing a true friendship. This can be accomplished with immersion. My goal is to inspire you to go out of your comfort zone and improve yourself each time you join this meetup.

Come along, grab a coffee, shut up, and write! We will do at least two sessions of each 45 minutes of writing and two breaks. We will start the first writing session at 11:15. **For space reasons, we are limited to a certain number of attendees, so please update your RSVP if you can't come**. We often have a large waiting list, and not updating your RSVP or not showing up if you do RSVP yes means that others miss out. We also ask that if you do change your RSVP, do it with reasonable notice. Thanks! We typically take over all of the cafe, but try to share tables if you can to allow space for other customers. If you are new, come and say hello, as we know that suddenly going quiet for 45 minutes and staring at that blank page can be intimidating when it's your first time. We have a lot of long-term regulars who will be happy to help you feel welcome. In between sessions, we have a Telegram chat: https://t.me/joinchat/ERW3pxD5kfELGeWs9SUhjw For more information, visit [https://shutupwrite.com](https://shutupwrite.com/).

**Agenda :** * 4.45 to 5.00 PM ET: Food and Networking * 5.00 to 5.50 PM ET: "Data Science & Machine Learning with Microsoft Fabric" Hello Everyone! Please join us for our March 12th edition of the AI-ML MeetUp. **Please note this is an in-person meeting and light refreshments/food will be provided. You will need a government-issued ID to enter the facility.** **Title:** Data Science & Machine Learning with Microsoft Fabric **Description:** Explore Microsoft Fabric’s integrated Data Science experience across ideation, preprocessing, modeling, & deployment. Learn how to ingest and prepare data via OneLake and Lakehouse, leverage Notebooks, Data Wrangler, Spark, SynapseML, MLflow for experimentation, & operationalize predictions with batch scoring and Power BI direct integration. Also, learn to build generative AI Q&A systems using Fabric Data Agents. **Location:** The meeting will be hosted in the Applied Information Sciences ( AIS ) office in Reston, at 11440 Commerce Park Dr # 600 · Reston, VA. The location is also right off the Silver Line metro's Wiehle-Reston Metro Station. **Parking:** Parking is paid and can be validated at the AIS office reception. We will meet in Room Lake Anne. We hope to see you all there!!!!

**Agenda:** * 6-6:30 pm: Networking and food/drinks * 6:30-7:15 pm: Announcements and presentation * 7:15 pm-7:30 pm: Q&A and close-out **Hacking the Stack: Using OpenSearch Dashboards as an Application Framework** Most developers treat OpenSearch Dashboards (OSD) strictly as a visualization layer—a place for charts and graphs. They are missing the bigger picture. OSD is a powerful, untapped environment for full-stack application development. In this session, we peel back the architecture of **an enterprise-grade risk, compliance, and security platform built entirely *on top of* OSD**. We moved beyond simple plugins and pushed OSD to its limits to create a seamless, interactive application experience. Join us for a deep dive into the engineering reality of the OpenSearch stack, including: * **The Analysis:** Why the OpenSearch stack beat out the competition. * **The Build,** **Beyond Visualization:** How to implement custom React components to build complex workflows and interactive UIs within OSD. * **The Integrations:** Integrating Wazuh for agent management and ingesting data at scale. * **The “Gotchas”:** Honest, real-world lessons on data handling, state management, and what to look out for. **If you are ready to push your plugins from “reporting tools” to “robust software,” do not miss this session!**

RSVP here: **[https://reg.experiences.redhat.com/flow/redhat/3558153/redhatfieldeventspreregnoappform/page/landingregistrationpage?sc_cid=](https://reg.experiences.redhat.com/flow/redhat/3558153/redhatfieldeventspreregnoappform/page/landingregistrationpage?sc_cid=)[RHCTN1260000475092](https://reg.experiences.redhat.com/flow/redhat/3558153/redhatfieldeventspreregnoappform/page/landingregistrationpage?sc_cid=RHCTN1260000475092)** Is configuration drift silently killing your stability? Join us for the next Red Hat User Group (RHUG) event in Washington D.C. and discover the future of IT infrastructure management with Red Hat Enterprise Linux (RHEL) 10 Image Mode. This isn't just another operating system update—it's a new paradigm. You’ll learn how to treat your entire OS as a versioned, container-native artifact, bringing the speed and control of DevOps to your foundational layer. **Event Highlights:** * Deep Dive: Deploying and maintaining a truly immutable, compliant operating system. * Expert Insight: How to use familiar container-native tools to build bootable RHEL images. * Networking: Connect with peers, Linux administrators, security engineers, and infrastructure architects. Don't miss this opportunity to transform your IT services. Date: Wednesday, March 26, 2026 Time: 12:00 PM – 3:00 PM EST Location: Red Hat Tysons Corner, McLean, VA Secure your spot today and get ready to eliminate operational "noise" for good. We look forward to seeing you there! Your RHUG Team

Face-to-face Role Playing Game Session

We will be meeting at Starbucks to learn together. Come with an online class you're already going through or an interest and we will try to connect you with a course where you can learn it. Already have a skill you want to contribute to a Kaggle Datascience competition? We will work on these too! Laptop required :)