Spatial Data

Bachata (the dance of our generation) is a social couple dance like Salsa - no choreography. The community in Berlin is active daily - you will meet a lot of open-minded people and make new friends quickly! Every Monday we have Bachata dance classes in Berlin - we are usually a group of around 20 people (95% beginners): 🕖 19:00 - class: Technique for Beginners+ (0-1+ years experience) • No partner needed (we switch). • You can start from zero in any of these classes! 📍 Adress: Klosterstraße 44 ([Google Maps Link](https://maps.app.goo.gl/5VGEqaVSy9xBCoHv9)) - near S+U Alexanderplatz • Entry: Entrance A, code: 5928# - 5th floor (500). • Price: 12€ per class. ✅ Dance teacher contact: [WhatsApp-group](https://chat.whatsapp.com/IWKPsid0cBDAUHCWKZNL2B) / [Instagram](https://instagram.com/mahir.bachata.berlin) 🇩🇪: Bachata (der Tanz unserer Generation) ist ein sozialer Paartanz wie Salsa - keine Choreographie. Die Bachata-Szene in Berlin ist groß und täglich aktiv - du wirst schnell viele offene Leute kennenlernen und neue Freundschaften schließen! Jeden Montag findet dieser Bachata Tanzkurs statt - wir sind meistens eine Gruppe von 20 Leuten (95% Anfänger): 🕖 19 Uhr - Kurs: Technik für Anfänger+ (0-1+ Jahre Erfahrung) • Kein Partner nötig (wir wechseln). • Du kannst in diesen Kursen jederzeit von null starten! 📍 Adresse: Klosterstraße 44 ([Google Maps Link](https://maps.app.goo.gl/5VGEqaVSy9xBCoHv9)) - Nähe S+U Alexanderplatz • Zugang: Eingang A, Code: 5928# - drinnen Knopf drücken links an der Tür. 5. Etage (500). • Preis: 12€ je Kurs. ✅ Tanzlehrer Kontakt: [WhatsApp-Gruppe](https://chat.whatsapp.com/IWKPsid0cBDAUHCWKZNL2B) / [Instagram](https://instagram.com/mahir.bachata.berlin) Schreib uns gerne eine Nachricht, wenn du offene Fragen hast! Wir freuen uns auf dich ❤

🔑🔻 There are 2 Bachata dance classes this Monday: 🕖 19:00 - class: Beginners+ Bachata Technique (0-1+ years experience) 🕗 20:00 - class: Intermediate-1 Bachata Technique (1-2+ years experience) • No partner needed (we switch). ❗️ The Intermediate-1 class is only for dancers who have been to Bachata parties before or completed 10 beginners+ classes. 📍 Adress: Klosterstraße 44 ([Google Maps Link](https://maps.app.goo.gl/5VGEqaVSy9xBCoHv9)) - near S+U Alexanderplatz • Entry: Entrance A, code: 5928# - 5th floor (500). • Price: 12€ per class. ✅ Dance teacher contact: [WhatsApp-group](https://chat.whatsapp.com/IWKPsid0cBDAUHCWKZNL2B) / [Instagram](https://instagram.com/mahir.bachata.berlin) 🇩🇪: Diese 2 Bachata Tanzkurse finden am Montag statt: 🕖 19 Uhr - Kurs: Anfänger+ Bachata Technik (0-1+ Jahre Erfahrung) 🕗 20 Uhr - Kurs: Intermediate-1 Bachata Technik (1-2+ Jahre Erfahrung) • Kein Partner nötig (wir wechseln). ❗️ Der Intermediate-1 Kurs ist nur für Tänzer, die schon mehrmals auf Bachata Parties waren oder 10 Beginners+ Kurse besucht haben. 📍 Adresse: Klosterstraße 44 ([Google Maps Link](https://maps.app.goo.gl/5VGEqaVSy9xBCoHv9)) - Nähe S+U Alexanderplatz • Zugang: Eingang A, Code: 5928# - drinnen Knopf drücken links an der Tür. 5. Etage (500). • Preis: 12€ je Kurs. ✅ Tanzlehrer Kontakt: [WhatsApp-Gruppe](https://chat.whatsapp.com/IWKPsid0cBDAUHCWKZNL2B) / [Instagram](https://instagram.com/mahir.bachata.berlin) Schreib uns gerne eine Nachricht, wenn du offene Fragen hast! Wir freuen uns auf dich ❤

Finding your place in a city isn’t just about locations — it’s about moments where you can exhale. This Social Butterfly Club Meetup is an invitation to slow down and connect in a way that feels grounded and real. A space for conversations that don’t need to impress, where different stories of “home” can exist side by side. 🌙 Some people feel at home through people, others through routines, places, or quiet familiarity. Wherever you’re at with that question — you’re welcome. ✨ Suggested Ice Breaker Question: “What helps you feel at home — wherever you are?” Orga This meetup is donation based. Your contribution helps keep this community alive and is highly appreciated. You can either contribute in cash or via Buy me a Coffee: [https://buymeacoffee.com/butterflyradar](https://buymeacoffee.com/butterflyradar) Questions? Check our FAQs: [https://socialbutterfly.berlin/meetup-faq/](https://socialbutterfly.berlin/meetup-faq/) Meet your host I’m Julia — a Berlin local who loves bringing people together. My path went from growing up in a dance school to studying philosophy to working in IT support, and somehow all of that led me here: hosting meetups and creating spaces where people can show up, relax, and connect. Insta [https://www.instagram.com/juwaberlin/](https://www.instagram.com/juwaberlin/) LinkedIn [https://www.linkedin.com/in/julia-waehnert/](https://www.linkedin.com/in/julia-waehnert/) About The Social Butterfly Club 🦋 is a Berlin-based community that has been bringing people together for over three years. Each gathering is part of a larger framework designed to help friendships grow through shared experiences in the city — with a long-term vision of turning Berlin itself into a shared, playful experience. Curious to learn more about the Social Butterfly Club? You can explore the bigger picture and stay connected here: [https://social-butterfly-berlin.kit.com/join](https://social-butterfly-berlin.kit.com/join)

English below Liebe Nachbarn und Freunde, Kommt vorbei und lernt eure Nachbarn kennen bei einer Runde Wizard, Just One, Dixit, Fluxx, und noch viel mehr. Ihr dürft natürlich eure Lieblingsspiele mitbringen und sie uns beibringen, falls wir sie noch nicht kennen. Teilnahme auf Spendebasis. Wo: offenes Wohnzimmer, Waldenserstr. 13, 10551 Berlin http://www.offeneswohnzimmer.org/ Dear neighbors and friends, The Offenes Wohnzimmer is hosting the next board game night. Come around and meet your neighbors around a game of scrabble, cards and more. You’re welcome to bring your favorite games. Participation donation based 🙂 http://www.offeneswohnzimmer.org/

**💶 Wertschätzungsbeitrag: 10-20 Euro (nach eigenen Möglichkeiten)** **Du möchtest Deine Freundschaften, Partnerschaft & Arbeitsbeziehungen verbessern? Dieser Worskhop kann ein großer Schritt dazu sein.** Beziehungs- und Bindungstypen sind ein weit verbreitetes Modell, um typisches Verhalten in verschiedensten Beziehungen erklären. Warum klammert jemand? Warum Drama? Warum Rückzug? Warum Kälte? Warum Unsicherheit, Nervosität und Ärger? --- und wie sieht eine sichere & gute Beziehung aus (und fühlt sich an). Die Annahme: Ereignisse der frühen Kindheit & der Erziehungsstil unserer Eltern prägen, wie wir als Erwachsene unsere Partnerschaften, Freundschaften & Arbeitsbeziehungen leben. Für manche gut. Für manche weniger gut. Ich setze mich mit den Beziehungstypen auseinander, weil ich glaube, dass sie einen wesentlichen Einfluss auf die Gestaltung von Freundschaften haben (und auf Liebesbeziehungen sowie menschliche Beziehungen jeglicher Art). Dabei habe ich entdeckt, dass ich oft einen vermeidenen Beziehungsstil habe - ich weiche lieber aus, trenne mich oder spreche Probleme nicht an, weil ich wahrscheinlich in meiner Kindheit aus unterschiedlichen Ereignissen gelernt habe... dass bringt eh nichts, ich kann anderen nicht vertrauen, das macht man nicht, meine Bedürfnisse sind nicht wichtig, usw. In der Auseinandersetzung mit den Beziehungs- / Bindungstypen habe ich bemerkt, wie gut es mit tut, mit anderen mich darüber auszutauschen. Weil: * Ich bin nicht allein. * Ich lernen die Gefühle anderer kennen * Ich entwickle ein gutes Gefühl für die anderen Beziehungsstile (nicht nur meinen) * Ich löse das Thema für mich Schritt für Schritt - und werde immer sicher in meinen Bindungen & Beziehungen. In eine Workshop-Beschreibung zu schreiben, dass ich mich oft beim vermeidenden Beziehungsstil entdecke... ist kein Vermeiderverhalten mehr 😊. Halleluja! . **🎁 Das kannst erwarten** Ich lade Dich zu diesem Workshop ein, damit Du einen weiteren Schritt Richtung mehr Leichtigkeit & Ehrlichkeit in Beziehung gehen kannst. Ich werde eine kleine Einführung zu den Bindungsstilen geben - und dann steht der Austausch miteinander im Mittelpunkt: * Was sind Situationen, die mich triggern? * Wie geht es mir dann? * Wie reguliere ich mein Nervensystem? Meine Erfahrung ist: Austausch & Offenheit hilft, mit sich selbst und anderen relaxter zu werden. . Ein Link oder ein Buch zur Vorbereitung findest Du weiter unten. Es wäre gut, wenn Du eines von beiden bereits gelesen hättest oder von anderer Seite Vorwissen zu den Bindungstypen / Beziehungstypen hast. . . **⏰ Die Türen sind offen ab 18:15 Uhr. Komm am besten schon 18.15 Uhr** Mantel aufhängen, Toilette, eine Runde schwatzen und los ... . **❓ Darf ein zweites Mal kommen?** Ja, sehr gern. Ich halte es sogar für sinnvoll, mehrfahr zu kommen, wenn Dir der Workshop gefallen hat: Das Thema vertiefen, die eigenen Beobachtungen aus den letzten Wochen verarbeiten und sich mit neuen & alten Bekannten über das Thema weiter austauschen. 💬 **Agenda** 18:15 Uhr - Doors Open & Ankommen 18:30 Uhr - Start des Workshops * Einführung, Vorstellung * Kleines Kennenlernen * Einführung in das Thema durch mich * Verständnisfragen * Verschiedene Austauschrunden mit Vertiefungsfragen (der größte zeitliche Anteil) * Offene Fragen 21:30 Uhr - Ende . Zwischendurch machen wir eine kleine Pause. . Tausche Dich mit Gleichgesinnten über ein wesentliches Thema Deines Lebens aus. Du kannst immer wählen, mit wem Du Dich in welcher Tiefe unterhalten möchtest. Dein Gegenüber natürlich auch :). Nein heißt nein, Ja heißt Ja 🤗 . **🏠 Der Veranstaltungsraum** * Wir haben einen wunderschönen Raum im Kieztreff in Berlin Mitte (mit sauberen Toiletten!). * nähe Hackescher Markt. Sehr gut mit den Öffis zu erreichen. * Wenn Du vor Ort ankommst, ist alles ausgeschildert. . **🎒 Das bringst Du mit ...** * Etwas zu trinken (z.B. deine Wasserflasche, keinen Alkohol!) * Wenn Du magst: Zettel und Stift. * Du solltest satt sein und vorher gegessen haben * Bargeld für den Wertschätzungsbeitrag (10-20 Euro) . 📋 **Kann ich mich vorbereiten?** Ja! Vielen Menschen sind die Beziehungstypen bekannt. Wenn Du etwas Grundwissen hast, ist das sehr nützlich für den Workshop. Ansonsten empfehle ich diesen Link zu lesen: Link: [Welcher Beziehungstyp bin ich?](https://chrisbloom.de/blog/welcher-beziehungstyp-bin-ich-mit-test/) Dieses Buch ist eine sehr gute Einführung in den Workshop. Der Workshop wird sich daran orientieren: * **[Buch: Warum wir uns immer in den falschen verlieben](https://amzn.to/498A9js) (Werbung, Amazon-Link)** [Werbung: Als Amazon-Partner verdiene ich an qualifizierten Verkäufen.] Das Buch orientiert sich an Liebesbeziehungen, die Erkenntnisse sind meiner Meinung nach aber auf alle menschliche Beziehungen anwendbar. 🚫 **Was ist der Workshop nicht:** Der Workshop ist kein therapeutisches Angebot. Dafür bin ich nicht ausgebildet (bisher noch nicht mal im Selbststudium). Wenn Du aufgrund der Erkenntnisse beim Lesen des Buches, der Links oder der Gespräche auf dem Workshop zum Ergebnis kommst, dass eine Therapie für Dich sinnvoll sein kann, dann wäre das ein richtig guter Schritt. . 💫 **Warum der Workshop gut für Dich ist** * Ich glaube: Niemand ist perfekt. (und gleichzeitig deshalb genau richtig 🙂) * Ich glaube, dass jeder in wenigstens minimaler Form manchmal Arten von unsicheren Bindungsverhalten zeigt * Gleichzeitig wird jeder im Leben mit Menschen zu tun haben, die ein unsicheres Bindungsverhalten zeigen. . Mit sich selbst und anderen reflektiert umgehen zu können, finde ich eine zentrale Fähigkeit im Leben. . Ich finde, dass gute menschliche Beziehungen sind der zentrale Schlüssel zu einem erfüllten Leben sind (das finden laut Jacobsstudie übrigens 85 Prozent der Menschen in Deutschland). . Die Bindungstypen / Bindungsverhalten sind meiner Meinung nach ein zentrales Modell, um gute menschliche Beziehungen führen zu können. . 🧑🏼 **Mehr über mich:** Ich forsche seit 5 Jahren zu guten Freundschaften, wie man diese aufbaut und vertieft. Du erfährst mehr über mich auf [www.abenteuer-freundschaft.de](www.abenteuer-freundschaft.de). Auf Meetup veranstalte ich Freundschafts-Workshops, Wanderungen, Spaziergänge, Männerabende, Frauen-Freundschafts-Workshops und Themenabende zu Vertiefung psychologischer Fragen. Außedem bin ich ausgebildeter NLP-Lehrtrainer ([DVNLP](https://www.dvnlp.de/)) & Coach. **Ich freue mich Dich zu sehen und auf einen interessanten, efahrungsreichen Workshop!** \-\-\-\-\-\-\-\-\-\-\-\-\- **🌳 Vielleicht auch für Dich interessant:** **📘 Befreiung von Scham & Schuld:** Gemeinsame Besprechung eines Buches. Die Wurzel von Kindheitsprägungen & dysfunktionalen Glaubenssätzen verstehen. [https://www.meetup.com/abenteuer-freundschaft/events/312149793/](https://www.meetup.com/abenteuer-freundschaft/events/312149793/) \-\-\-\-\-\-\-\-\-\-\-\-\-\- **👋🏽 Get in touch & stay in touch:** **✈ Telegram-Kanal: [t.me/abenteuer_freundschaft](http://t.me/abenteuer_freundschaft)** für Events, Workshops & Neuste Erkenntnisse aus der Freundschaftsforschung (Überschriften) **✉ Freundschafts-Newsletter:** [https://abenteuer-freundschaft.de/newsletter](https://abenteuer-freundschaft.de/newsletter) Alle 4 Wochen das Neuste aus der Freundschaftsforschung; oft schreibe ich seltener, nämlich nur dann, wenn es wirklich etwas zu berichten gibt. **🔥 6 Zutaten großartiger Freundschaften** Seit 2020 forsche ich, was großartige Freundschaften wirklich ausmacht. Ein Ergebnis ist das 30seitige eBook: "Die 6 Zutaten großartiger Freundschaften". Du erhältst das eBook zurzeit kostenlos, wenn Du Dich für den Newsletter anmeldest: [https://abenteuer-freundschaft.de/newsletter](https://abenteuer-freundschaft.de/newsletter) **🎭 Meet-Up-Gruppe:** [https://www.meetup.com/g/abenteuer-freundschaft/](https://www.meetup.com/g/abenteuer-freundschaft/) Hier bist Du schon: Workshops, Spaziergänge, Wanderungen, Treffen, Eislaufen, Eisbaden, Männer-Abende, Freundinnen-Workshops, Sonntagsausflüge

Join us for a thrilling and empowering Martial Arts Training hosted by the **Juk Cheon Do** \- Self Defense and Martial Arts group\! Our monday training is focused on **Grappling.** This event is perfect for adults looking to enhance their self-defense techniques, improve fitness, and learn this unique Korean German Martial Art. Whether you are a newbie or have experience in MMA Mixed Martial Arts, BJJ, Judo, Wrestling or Sambo, this training will offer valuable insights and practical training exercises to bring your skills to another level. Get ready to boost your confidence, strength, and agility while embracing the physical and mental challenges of this martial arts training and enjoy this fantastic opportunity to make new friends within the community of like-minded individuals who share a passion for martial arts. We are not a huge group and like to train in a nice atmosphere with each other. Everybody is welcome weather you are a total beginner or experienced martial artist, weather your are top fit or you want to be it. Don’t be afraid and never forget, everybody starts at one point as a beginner. Important is the will to start. So no excuses! Start today! And of course we are also open to females, males and whatever. Here everybody is equal to share the same fun and pain. ;) Languages: German, English, Korean, Japanese. If the door is closed or you can’t find us, please call me: 01781830004 !

Bitte kauft in den Restaurants mindestens einen Artikel, damit wir keinen Ärger mit dem Manager bekommen. -> Location Berlin Potsdamer Platz -> The Playce -> Manifesto Markt Wir sitzen unten oft an den großen runden Tischen vor dem Restaurant Kumpir'a oder an den langen Tischen vor dem Pizza und Pasta Restaurant im Erdgeschoss. Dieses Treffen ist für: -Internationale Teilnehmer aus allen Ländern, die auf Deutsch Kontakte knüpfen wollen. -Deutsch-sprachige, die in netter Gesellschaft anderen helfen wollen, Deutsch zu sprechen, oder nur neue Kontakte knüpfen wollen.

Welcome to the PyData Berlin January meetup! We would like to welcome you all starting from 18:30. There will be food and drinks. The talks begin around 19.15 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**: **Spiced Academy** is excited to welcome you to this month's version of PyData. \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* The Lineup for the evening **Talk 1: From Grape Stomping to Gorilla Trekking: AI-Driven Discovery of Novel Interests at GetYourGuide** **Abstract**: UX research shows that discovering new, unexpected and unique things to do in a destination is among the most important needs for travelers. However, surfacing these “hidden gems” at scale is a major challenge for any dynamic marketplace. At GetYourGuide, we tackled this by combining large language models, semantic vector embeddings, and a robust human-in-the-loop process to automatically identify and categorize novel customer interests. Join me as I dive into how we created this AI-driven solution and how we achieved scalable, granular and relevant categorization of our activities. **Description:** How do you help a traveler find something they never knew they wanted? In this talk, I will explore the exciting journey of developing an AI-driven solution to identify novel customer interests at GetYourGuide. With thousands of new activities onboarded weekly, manual categorization became impractical, prompting the need for automation. This talk will walk you through our end-to-end solution: * The problem: the challenges travelers face in discovering relevant and unique experiences, the organizational complexity of this on our platform and its business impact * The AI journey: From raw LLM-based extraction to vector embeddings, clustering, all the way to a robust human-in-the-loop pipeline. I’ll share how we iterated from noisy prototypes to an impactful system, launching 300+ new interests and driving significant engagement and net revenue uplifts * What we learned: The realities of working with LLMs in production-like settings, more specifically hallucinations and issues with relevance, granularity and semantic deduplication. We found out that the line between useful innovation and unwanted noise can be surprisingly fine when using LLM’s. I’ll share practical examples of these challenges and how we addressed them. * Impact and future directions: How we achieved a 10x increase in manual acceptance of AI-suggested interests in just two iterations, and what’s next for AI-driven discovery at GetYourGuide **Bio**: **Morena Bastiaansen** holds a master’s degree in Econometrics from the University of Amsterdam and currently works as a Data Scientist at GetYourGuide in Berlin. She combines her passions for machine learning, language, and travel to build impactful systems for travelers worldwide, with a current focus on personalization in email marketing. Morena is also actively involved in the local tech and ML community. **Talk 2: Deep dive into data streaming security** **Abstract**: Data streaming is powering everything from fraud detection and real-time analytics to patient monitoring and order fulfillment. But as the role of streaming grows, so does the risk - because many streaming platforms, like Apache Kafka, aren't secure by default. In this talk, we’ll take a practical look at data streaming security through the lens of Kafka, one of the most widely adopted streaming platforms in the world. We'll walk through what can go wrong - real examples of exposing 14M patient-doctor messages, or years of real-time delivery info to the internet - and what it takes to do it right. We'll cover the key pillars of securing a streaming system: encryption in transit and at rest, access control, monitoring, and key management. Along the way, we’ll look at the trade-offs like disk encryption vs. end-to-end encryption, what is behind field-level and envelope encryption, and the realities of using customer-managed keys in regulated industries. We'll also explore how streaming security has evolved, how real vulnerabilities (like CVE-2019-12399) highlight the need for patching and monitoring, and what successful multi-layered security looks like in production - from financial institutions to healthcare platforms. If you're building, running, or scaling streaming systems, this talk will help you see the security blind spots and give you concrete steps to protect the data flowing through your pipelines. **Bio**: Olena Kutsenko is a Staff Developer Advocate at Confluent and a recognized expert in data streaming and analytics. With two decades of experience in software engineering, she has built mission-critical applications, led high-performing teams, and driven large-scale technology adoption at industry leaders like Nokia, HERE Technologies, AWS, and Aiven. A passionate advocate for real-time data processing and AI-driven applications, Olena empowers developers and organizations to use the power of streaming data. She is an AWS Community Builder, a dedicated mentor, and a volunteer instructor at a nonprofit tech school, helping to shape the next generation of engineers. As an international speaker and thought leader, Olena regularly presents at top global conferences, sharing deep technical insights and hands-on expertise. Whether through her talks, workshops, or content, she is committed to making complex technologies accessible and inspiring innovation in the developer community. **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 \*\*\*

Open Source Frühstück: enjoy food and deep technical talks Open your day with a solid breakfast and practical discussions on **Apache Kafka**, **ClickHouse**, **PostgreSQL** and much more. Enjoy a session designed for data engineers, architects and technical decisions-makers like you, who want to address the challenges they face in data-infrastructure. No high-level pitches but straight into practical discussions on how to build scalable, efficient open sourced-powered data platforms. What's on the menu (other than a delicious breakfast): * **Deep dives** into new features and upcoming technical roadmaps, including **Aiven Inkless**, **Kafka,** **Apache Iceberg**, **OpenSearch**, **PostgreSQL**, and **ClickHouse** * **Real case studies** demonstrating how top engineering teams are solving core data problems with these stacks, including search, observability, and analytics use cases powered by OpenSearch. * **Optimization techniques** for performance, cost-efficiency, and operational simplicity. So what are you waiting for? Secure your seat now!

**📅 Week 1 Focus: Kickoff & New Shared Project Theme** We’re starting a new **7-week cycle** with a clear theme: **building one data science project together from start to finish.** 👩‍💻 No experience required 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 (covering data engineering, data science, and deployment). You’re welcome to work on your own project if you prefer, but the shared project gives everyone a common foundation and learning rhythm. 🧠 2026 First Project This cycle’s shared project is an **image-based knowledge extraction system**., including: * Taking photos of book pages or documents * Extracting and cleaning text from images * Structuring that information into something useful (e.g. flashcards, notes, summaries) 📌 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 🎯 Experience going from messy inputs → concrete outcomes Perfection isn’t the goal—finishing something real is. ✨ 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—and I care a lot about learning through building, not hype. 📅 When: Saturday, Jan 24 · 9:30–11:30 📍 Where: Torstraße 59, Forward Earth 💻 Bring: Your laptop, an idea—or just curiosity

Meet us for talks with EBCONT on January 20, 2026! Doors open at 18.00, first talk starts at 18.20. We wrap up at 20.30. Please make sure you sign up with your full name. 📅**Date and Time:** Tuesday, January 20, from 6:00-8:30 PM 📍**Location:** [Beyond Office, Heidestrasse 34, 10557 Berlin](https://maps.app.goo.gl/QJTtLBsyWdBXo9iA6) We will need your full name to allow your entrance at the building. 📝 **Agenda:** * **18:00 - Doors Open** * **18:20 - Talk #1** **\- Elastic Agent: Ingesting log files\, how hard can it be?** **[Denis Rechkunov](https://www.linkedin.com/in/rdner/)**, Principal Software Engineer at Elastic **Abstract:** Logs are the foundation of any observability solution, but to make them useful, they need to be ingested into a search index. One of the features provided by our Elastic Agent offering is to ingest log files into Elasticsearch so our customers can quickly navigate events in their systems. Reading files and sending data to Elasticsearch sounds simple, right? Not quite. In this talk we're going to dive deep into challenges associated with reading log files and sending them to Elasticsearch. * **18:50 - Talk #2 Flexible Chatbots with Elasticsearch - Integrating Elasticsearch, Confluence, and LLMs** **[Christoph Eder](https://www.linkedin.com/in/christoph-eder-0ab776194/)**, Senior IT Consultant at **[EBCONT](https://www.ebcont.com/en)** **Abstract:** In this talk, we'll show how we developed a flexible enterprise search solution using Elasticsearch — one that not only works in the cloud and with LLMs, but can also run on-premises and be easily combined with different LLMs. * **19:20 - Pizza, drinks and networking** * **20:30 - Wrap up** Invite your friends and join our meetup. Special thanks to our partner **[EBCONT](https://www.ebcont.com/en).** Want to speak at our next meetup? Submit your talk on **[this link](https://sessionize.com/elastic-meetups/)** and we will get in touch with you as soon as possible.

Complete your event RSVP here: [https://gdg.community.dev/events/details/google-gdg-cloud-berlin-presents-gathering-at-google-berlin/](https://gdg.community.dev/events/details/google-gdg-cloud-berlin-presents-gathering-at-google-berlin/) 🔖 We’re all about keeping things friendly and welcoming. Please take a moment to check out our Code of Conduct to help us make this event great for everyone. 👀 Have any ideas for future events or questions about sponsorships? Feel free to reach out! We really appreciate your feedback and are eager to build a strong and fun community together. *** **Agenda:** 6:00 PM ▶️ Arrival, Food & Networking 6:30 PM 📜 Opening Remarks 7:00 PM ⏯️ Patrick Löber: Building Agentic Applications with Gemini 3 7:40 PM ⏸️ Stretch and refresh 8:20 PM ⏯️ Steffen Hoellinger Pattern Recognition and Anomaly Detection for event-driven AI Agents with Apache Flink and Kafka 9:00 PM 🎤 Open Mic Session & Networking 9:30 PM ⏹️ Doors close ***

**IMPORTANT PLEASE RSVP AT:** https://www.meetup.com/pydata-berlin/events/312771201/ \*\*\* We would like to welcome you all starting from 18:30. There will be food and drinks. The talks begin around 19.15 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**: **Spiced Academy** is excited to welcome you to this month's version of PyData. \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* The Lineup for the evening **Talk 1: From Grape Stomping to Gorilla Trekking: AI-Driven Discovery of Novel Interests at GetYourGuide** **Abstract**: UX research shows that discovering new, unexpected and unique things to do in a destination is among the most important needs for travelers. However, surfacing these “hidden gems” at scale is a major challenge for any dynamic marketplace. At GetYourGuide, we tackled this by combining large language models, semantic vector embeddings, and a robust human-in-the-loop process to automatically identify and categorize novel customer interests. Join me as I dive into how we created this AI-driven solution and how we achieved scalable, granular and relevant categorization of our activities. **Description:** How do you help a traveler find something they never knew they wanted? In this talk, I will explore the exciting journey of developing an AI-driven solution to identify novel customer interests at GetYourGuide. With thousands of new activities onboarded weekly, manual categorization became impractical, prompting the need for automation. This talk will walk you through our end-to-end solution: * The problem: the challenges travelers face in discovering relevant and unique experiences, the organizational complexity of this on our platform and its business impact * The AI journey: From raw LLM-based extraction to vector embeddings, clustering, all the way to a robust human-in-the-loop pipeline. I’ll share how we iterated from noisy prototypes to an impactful system, launching 300+ new interests and driving significant engagement and net revenue uplifts * What we learned: The realities of working with LLMs in production-like settings, more specifically hallucinations and issues with relevance, granularity and semantic deduplication. We found out that the line between useful innovation and unwanted noise can be surprisingly fine when using LLM’s. I’ll share practical examples of these challenges and how we’re iterating to address them. * Impact and future directions: How we achieved a 10x increase in manual acceptance of AI-suggested interests in just two iterations, and what’s next for AI-driven discovery at GetYourGuide **Bio**: **Morena Bastiaansen** holds a master’s degree in Econometrics from the University of Amsterdam and currently works as a Data Scientist at GetYourGuide in Berlin. She combines her passions for machine learning, language, and travel to build impactful systems for travelers worldwide, with a current focus on personalization in email marketing. Morena is also actively involved in the local tech and ML community. **Talk 2: Deep dive into data streaming security** **Abstract**: Data streaming is powering everything from fraud detection and real-time analytics to patient monitoring and order fulfillment. But as the role of streaming grows, so does the risk - because many streaming platforms, like Apache Kafka, aren't secure by default. In this talk, we’ll take a practical look at data streaming security through the lens of Kafka, one of the most widely adopted streaming platforms in the world. We'll walk through what can go wrong - real examples of exposing 14M patient-doctor messages, or years of real-time delivery info to the internet - and what it takes to do it right. We'll cover the key pillars of securing a streaming system: encryption in transit and at rest, access control, monitoring, and key management. Along the way, we’ll look at the trade-offs like disk encryption vs. end-to-end encryption, what is behind field-level and envelope encryption, and the realities of using customer-managed keys in regulated industries. We'll also explore how streaming security has evolved, how real vulnerabilities (like CVE-2019-12399) highlight the need for patching and monitoring, and what successful multi-layered security looks like in production - from financial institutions to healthcare platforms. If you're building, running, or scaling streaming systems, this talk will help you see the security blind spots and give you concrete steps to protect the data flowing through your pipelines. **Bio**: Olena Kutsenko is a Staff Developer Advocate at Confluent and a recognized expert in data streaming and analytics. With two decades of experience in software engineering, she has built mission-critical applications, led high-performing teams, and driven large-scale technology adoption at industry leaders like Nokia, HERE Technologies, AWS, and Aiven. A passionate advocate for real-time data processing and AI-driven applications, Olena empowers developers and organizations to use the power of streaming data. She is an AWS Community Builder, a dedicated mentor, and a volunteer instructor at a nonprofit tech school, helping to shape the next generation of engineers. As an international speaker and thought leader, Olena regularly presents at top global conferences, sharing deep technical insights and hands-on expertise. Whether through her talks, workshops, or content, she is committed to making complex technologies accessible and inspiring innovation in the developer community.

Join us for a C++ meetup, proudly organized by think-cell, on **Wednesday, January 21, 2026**. The event is for C++ engineers eager to learn about "Lightweight: fast yet type safe database access". Connect with fellow engineers and industry experts over pizza and beer in the new year. **Agenda** 18:30 Doors open, snacks & drinks 19:00 Welcome speech by think-cell 19:05 Talks + Q/A 20:15 Pizza and beer, networking 21:30 Farewell **Venue** The meetup will be held at a new location this year. Say hello to [42 Berlin](https://42berlin.de/de/), a vibrant and welcoming space perfect for our gathering. We would like to extend our gratitude to42 Berlin for their generous cooperation in hosting this event. Address: Harzer Str. 42, 12059 Berlin Google Maps: [https://maps.app.goo.gl/tRUZuNqXvCoySysA6](https://maps.app.goo.gl/tRUZuNqXvCoySysA6) **Talk** This talk introduces Lightweight, a new C++ SQL library that aims to provide a user-friendly API while maintaining high performance and type safety. We'll discuss the design philosophy behind Lightweight and the challenges we overcame to create a solution that hides most boilerplate and low-level processes. The presentation will cover the library's iterative development, highlight practical usage examples, and offer an outlook on what's to come, including plans for C++26. **Speaker** **Yaraslau Tamashevich** is a Software Developer at **LASTRADA**, a leading software provider for the construction materials industry. He writes modern C++ code during the day and maintains multiple open-source projects, including a Contour terminal emulator that he attempts not to leave. Before relocation to Berlin, he wrote computational code in Julia to solve nonlinear light–matter interaction problems. He also worked on algorithms for electromagnetic compatibility solutions using C++. **Lightning Talk** *Slint a Modern UI Framework with First-Class C++ Support* by **Olivier Goffart**, **Co-founder at SixtyFPS**. Slint is a modern UI framework for building native applications, with a focus on performance and developer experience. This talk introduces Slint and shows how it can be used through a clean and idiomatic C++ API. We'll also look behind the scenes at how Slint C++ wrapper is made around the Rust implementation, how C++ and Rust interoperate, and how CMake integration is handled so that using Slint from C++ feels natural. **Registration** Seats are limited, so register to secure your spot. We look forward to an evening of technical deep dives and networking with fellow C++ engineers!

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 :)

Members of the public are invited to view the wonders of the universe through the telescopes of NOVAC volunteers at the Smithsonian's Udvar-Hazy Center in Chantilly, VA. You do not need to be a member of the club or own any astronomical equipment to attend. Telescopes will be provided by the Smithsonian and pre-approved members of the NOVAC. No other personal telescopes are permitted at the event. The event will take place on the bus parking lot of the museum. **Please park your vehicle at the south end of the main visitors lot and follow signs and red lights to the observing site. As a reminder, parking during the event is free.** Have a cosmic question? One of NOVAC's astronomers or museum staff will be happy to help you. As the sky gets dark, be prepared to enjoy the wonders of the night sky! Don't forget to dress warmly. Please check the weather forecast. For lighting, cover a flashlight in red cellophane (the darker the better). Bring along water to keep hydrated. Note: This outdoor event is weather-dependent and may be cancelled because of significant cloud cover or precipitation.

Join Nextgen Birders for a fun-filled day of birding at **Lake Fairfax Park** followed by a board game session at the **Northern VA Bird Alliance (NVBA) HQ**! Feel free to join us for the **morning walk**, the **afternoon game session**, or **both**! ***Agenda:*** * **9:00 am - 11:00 am:** Birding around Lake Fairfax Park * **11:00 am - 1:00 pm:** Board games and trivia at NVBA HQ ***Morning Birding Detail*s** (Lake Fairfax Park) * **Meeting Spot:** Main parking lot (near the restrooms and playgrounds) * **Address:** 1400 Lake Fairfax Dr, Reston, VA 20190 * **The Walk:** We will walk a portion of the trail along the lakeshore, looking for waterfowl and other birds of interest. * **Trail Note:** The trail includes both paved and unpaved sections. We highly recommend wearing **closed-toed shoes**. ***Afternoon Board Game Details (NVBA HQ)*** * **Location:** National Wildlife Federation Building (approx. 12 mins drive from the park) * **Address:** 11100 Wildlife Center Dr suite 100, Reston, VA 20190 * **Games:** We will have multiple sets of **Wingspan** as well as bird-themed **trivia** and more! * **Refreshments:** Light snacks and drinks will be provided. You are welcome to bring a festive treat to share! ***Additional FAQs:*** * **Parking:** Parking is **free** at both Lake Fairfax Park and the NVBA HQ. * **Metro:** The closest Metro stop is **Wiehle-Reston East** (Silver Line). Please note that both locations are a sizeable walk from the Metro, so taking an Uber or bus from the stop is likely the easiest option. We look forward to seeing you there!

NOTE: You MUST sign up and pay via our website to reserve your spot (https://flyingbuddhastudio.com/#Events). Simply responding yes to attend via Meetup does not hold your spot. Thank you for your understanding! If you are brand new to aerial yoga this workshop is the start of your journey! We will introduce you to using the aerial hammock as a yoga prop. Students will learn the basics of aerial yoga; including terminology, wrist wraps, hammock placement, inversions, and safety practices. We will also help you understand the difference between the various aerial yoga class offerings. Leaving you feeling confident and ready for classes on our weekly schedule. Please email us at info@flyingbuddhastudio.com if our workshop days/times are not possible with your schedule or if you’d prefer a private one-on-one or private group setting, we can make arrangements for you. This workshop is the prerequisite to taking any aerial yoga class listed on our weekly schedule. Class is limited to 12 students. Sign up early to reserve your spot! Cost of workshop: $55 without hammock rental, $65 with hammock rental \*Please note that we require a hammock rental to cover the costs of properly sanitizing our hammocks after each use. There is also the option to purchase your own hammock (payment plans are available). If you are bringing your own hammock that was not purchased at our studio please let your instructor know so they can evaluate the equipment for safety. Only climbing grade equipment may be used in our studio. Sign up: https://flyingbuddhastudio.com/#Events

Our local amphibians and reptiles are both susceptible to habitat destruction and pollutants and can often be victims of being misunderstood. Join Loudoun Wildlife Conservancy for an introductory look at our local amphibians and reptiles, what our citizens can do to help protect their habitats, and what related programs are available through Loudoun Wildlife to help monitor populations and increase community awareness of these often overlooked and fragile species. This presentation takes place at Rust Library and is co-sponsored by the Loudoun County Public Library and Loudoun Wildlife Conservancy.

**What makes one market a goldmine and another a money pit?** Success in real estate starts long before you make an offer. Choosing the right market and knowing how to analyze a deal are what separate confident investors from expensive mistakes. At this month’s meeting, we’ll talk about how to evaluate markets, spot demand drivers, and understand local fundamentals. We’ll also walk through how to analyze properties, run the numbers, and determine whether a deal actually makes sense before you move forward. Come for the training, stay for the networking! ━━━━━━━━━━━━━━━━━ **Did you miss it?** [Watch all GRID Reston event playback on YouTube](https://www.youtube.com/playlist?list=PLOTh5kxLLJI1G3VH6Pqhlhu0uTA8yrdpi) ━━━━━━━━━━━━━━━━━ **Join the GRID Facebook Community** [Join the online GRID community here](https://www.facebook.com/groups/gridinvestor) to post deals, ask questions, and connect with other investors across the globe.