Deep Reinforcement Learning

📅 **Week 4 Focus: Calling LLM via API** 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 3, we trained a deep learning object detection model (YOLO) and learned how modern computer vision models are built. **In Week 4** we will try **LLM-based image understanding via APIs** to extract structured information from images and comparing this approach with traditional computer vision and building your own deep learning methods. * \*\*\* **👋 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.

Möchtest du Deutsch sprechen und dabei Spiele spielen und leckeren Wein trinken? Dann komm am Samstag um 17:00 Uhr vorbei! Wir spielen gemeinsam Charades, Codenames, Pictionary, trinken ein bisschen Wein und unterhalten uns nur auf Deutsch. Das ist eine tolle Möglichkeit, einfach entspannt Deutsch zu üben und tolle Abend mit tolle Menschen zusammenzubringen.

**Agentic AI Engineering Lab (Tech Event, Sprint #1)** **\- Build a Production\-Ready MCP Server** **Move from prompting to architecting** The Model Context Protocol (MCP) is an emerging open standard for connecting AI apps/agents to real tools and data sources. This session is not a talk — it’s a hands-on lab where we build MCP servers that can be tested immediately with an MCP-capable client (e.g., Claude Desktop / your preferred agent setup). **The Format** We are planning a series of agentic ai tech meetings for deep building. This event may be attended alone or be seen as part / sprint of the event series with upcoming events building on top of what we build here. This is a high-density micro-meetup limited to 6 seats. We prioritize builders: bring your laptop, ship code, and be ready to 'build and break' alongside other devs and engineers. **Future Sessions building on top may focus on ...** RAG systems, advanced MCP features, A2A, multi-agent workflows, production deployment Patterns or whatever we feel nice to build next. (We run our sessions like an anthology series: **Every meetup is a standalone sprint.** While we often build on previous results, each session provides a complete experience and remains fully accessible to first-time attendees.) **What you'll build** After a quick alignment on the technical scope, the floor is yours: build your solution using the stack and tools that fit your workflow. We provide the framework; you provide the execution. By the end, you’ll have a working MCP server (Python or TypeScript) with at least one real tool/resource, tested end-to-end. **Ideas: Choose one track (or bring own idea if it fits the scope)** **For Beginners (Foundational)** * Personal knowledge server (local files/notes) * Weather / external API integration * GitHub issues helper **Intermediate** * SQLite query interface * Slack/Discord notification tool * CSV/Excel analyzer **Advanced** * Multi-API aggregator (e.g., calendar + weather + tasks) * Document processor (PDF/DOCX parsing) * Lightweight system monitoring/control **Schedule (Saturaday, 10:00 - 15:00 CET)** * **10:00–10:30 — Foundations + Live Demo** Quick run through general MCP architecture (hosts/clients/servers), core primitives (tools/resources/prompts), basic patterns in order to get everybody on the same page. * **10:30–11:00 — Environment Sync** We wanna make sure everyone can run a “Hello World” MCP server (Python or TypeScript). * **11:00–12:45 — Build Sprint (Lab Time)** Implement your server + first tool/resource. Pair-debugging encouraged. * **12:45–13:00 — Break (Pizza/Snacks)** * **13:00–13:30 — Test & Iterate** Use MCP Inspector / your client to test, fix edge cases, tighten tool contracts. * **13:30–15:00 — Demos + Technical Teardown** Quick demos, what broke, what worked, and what we’ll harden in the next sprint. **Prerequisites (Please Read)** * You’re comfortable shipping small things in your preferred dev language and tools (e.g. Python, TypeScript/Node.js). * **Bring your laptop** + basic dev setup (Git, package manager). * Have access to an LLM client / API (Claude/OpenAI/etc.). * This is a lab for engineers, not a tutorial. We solve architectural problems together, but you are the master of your own dev environment. * **Mindset:** Build, Break & Iterate — broken code is welcome, passivity isn’t. **Logistics** * **Location:** Our private boardroom in the Grunewald area (near Martin-Luther Hospital). The exact address will be shared after RSVP. * **Capacity:** 6 seats (first come, first served; deposit required) **Commitment Deposit and No-Show / Late-Show** This meetup is strictly non-profit. To respect everyone’s time and ensure all 6 seats are utilized by committed builders, a €15 deposit is required. * **The Deal:** The deposit covers high-quality pizza, snacks, and drinks. Any surplus will be refunded to you via your original payment method after the event. * **Punctuality is Key:** We start at **10:00 sharp** with the technical foundations (door open from 09:45). To protect the group’s focus, late arrivals or no-shows will not be eligible for a refund. Their deposit will be fully contributed to the community's pizza & snack fund. * **Cancellations:** No refunds for cancellations within 24 hours of the start time.

Im Jungfernheideweg 77, 13629 Berlin treffen wir uns zwischen 16.30 Uhr und 22.30 Uhr wieder um gemeinsam Brett- und Gesellschaftsspiele zu daddeln. Das Angebot richtet sich an alle Interessierten. Kinder bitte erst ab 12 Jahre. Eine Vielzahl toller Brettspiele sind vor Ort, es können aber auch gerne eigene mitgebracht werden. PS: Es wäre sehr hilfreich wenn die Leute, die sich anmelden und dann doch nicht können, sich auch wieder abmelden vorher. danke schön

!!! ABOUT THE MEETING SPOT !!! For some reason, the map pin keeps jumping back to the wrong meeting spot and [meetup.com](http://meetup.com/) won't let me change it! Please note that we will meet HERE: [https://maps.app.goo.gl/L8SuKJxoLLa8hXCdA](https://maps.app.goo.gl/L8SuKJxoLLa8hXCdA) \-\-\-\-\- 大家好！ Thanks to everyone joining in our past events - 很高兴认识你们! Now let's meet again to learn German and Mandarin Chinese together, because as they say in German: "Wer rastet, der rostet!" :) Feel free to bring a friend as well! We'll meet here, on the 3 wooden tree benches slightly left of the main entrance gate of Tempelhofer Feld: https://maps.app.goo.gl/L8SuKJxoLLa8hXCdA We'll meet at the meeting spot first and then - depending on the weather - decide as a group to either walk around Tempelhofer Feld or go to a closeby restaurant to warm up and chat. So please be on time. Or if you are running late or can't find us, just give me a call on 0176-21984345. See you all soon, 昊兴 (Matthias)

**✧ FOR YOU ✧** Maybe you want to release daily tension and reconnect with your body. Maybe you love good music and want to dance outside the club. Or maybe you’re simply curious to find more freedom in your movement. Whether you’ve danced a thousand times or never before —come as you are and bring some curiosity with you. ***No previous experience required.*** **✦ WHAT IS x-dance ✦** x-dance blends dance, self-expression, and meditation. There are no steps to learn or follow here - it's an invitation to spontaneous movement. Guided by an eclectic wave of sound and inspirational prompts, you’ll move through the 5Rhythms — five life energies that rise and fall like a wave. **✺ Three ingredients shape each journey ✺** ✺ Celebration of you - Nothing to get "right" ✺ Invitations - Follow what feels true for you ✺ Presence - Dance becomes a meditation in motion **⟢ CONTRIBUTION ⟣** ⟢ €15 \(Reduced\) \| €20 \(Regular\) \| €25 \(Supportive\) ⟢ Buy via[ this link](www.samarlinn.com/events/x-dance) or cash at the door **⋰ WHAT TO EXPECT ⋱** ⋰ Entry from 19.15 - Please note entry after 19.45 isn’t possible. ⋰ Warm-up + Introduction ⋰ Guided music wave — move, release, reconnect ⋰ Take it further - open space after class to connect ⋰ No phones on the dance floor

Welcome to Terrible Football Berlin!
Do you want to play football but don't want to pay? Are you a bit unfit, a bit old, or a bit Terrible? Want to have a relaxed kick about and a couple of beers after? Then Terrible Football is for you!
Anyone can play: any ability, any age, and any gender. Terrible Football is about miss kicked clearances, sweet half volleys and desperate diving saves. We play in the rain, sun or snow. It's completely free, and always will be. It's open, inclusive and Terrible.
We usually play on Astro (artificial grass) and sometimes on grass, depending on numbers. Bibs, balls, and cones are taken care of! Just bring sporty clothes and a pair of rubber studded football shoes you'll be good to go! You don't need shin pads and we don't allow hard plastic or metal studs.
The exact location of the event is in the Telegram group description (https://t.me/joinchat/OkWQBBcw3b7ptauwrIEfig Still trouble finding us? Send a message in our Telegram group and we'll help you out. You'll also stay up to date with last-minute changes!
See you on the pitch!
... and stay Terrible!
 \-\-\-\> GUIDELINES FOR THE SESSIONS <\-\-\-
 How the games will work:
 1\. We will have up to 18 players\.
 2\. Please RSVP on Meetup if you want to participate\.
 3\. If you sign up\, please try your best to attend the event to avoid disturbing the format\. If you cannot attend the session\, deregister asap \(Please check below how the waiting list will work\)\. LATEST CANCELLATION is 3 HOURS before the start of the event\. 4\. Regular no\-shows could be banned from future TF Meetups\.
 5\. We will NOT allow unregistered participants\.
 6\. The organizer group will ban repeat rule breakers\, so play nice\.

Chitta Walks is for people whose days move fast, while the mind never fully lands. Thoughts keep looping even when nothing is urgent. The body moves, but attention is elsewhere. Over time, this disconnect drains clarity and ease. This walk is a simple reset. We meet in Berlin’s Tiergarten and walk at a gentle pace. Parts of the walk are in silence, with light guidance and a few short prompts. The walk itself is the practice, bringing body and mind back into the same moment. No apps. No performance. Just a clear space to slow down and notice what is happening. If you want to slow down without withdrawing from life, join a Chitta Walk. ✨ **What to expect (approx. 90 minutes):** * A short arrival and orientation * A guided silent walk (phones off, no conversation) * One concise science-based impulse on attention or stress * Optional reflection in pairs or small groups * A simple takeaway or experiment for daily life 🚶**Who this is for:** * Professionals, creatives, and people in transition. * People who feel mentally busy and want more clarity and balance. * Those curious about mindfulness, but grounded and practical. * Anyone comfortable with silence and gentle self observation. 🔔 **Practical notes:** * Duration: 60-90 minutes * Wear comfortable shoes and weather-appropriate clothing * No prior experience needed * Group size is limited to keep the space quiet and focused 🧭 **Facilitator:** My name is Partha Sarathi, you can call me PS. I have lived in Berlin for over 12 years. With a background in physics and materials science, my interest in mindfulness grew through personal experience with stress and health challenges. I facilitate the space and structure of the walk, inviting shared exploration rather than instruction. 🤔 **Why Chitta Walks?** Chitta is a Sanskrit word referring to the mind or field of awareness, used here in a practical, non-religious sense. Chitta Walks is about noticing how the mind works by slowing down and walking together. Mindful walking makes thought patterns visible in real time, while moving and sensing in the world. The name points to a simple capacity: noticing what is happening in the mind without immediately trying to fix, judge, or optimize it. 🌿 **Possible effects:** A calmer nervous system. Clearer attention. A felt sense of being more present in your body. Subtle insights into how your mind reacts under everyday conditions. A quieter, more grounded way of moving through the city. **Come as you are. Walk. Notice. Leave with a little more space inside.**

Hey everyone! I’m organising a co-working + socialising session for all of us who like to work on something (e.g. our own project, freelance or remote work) but don't feel like sitting alone at home. 🙂 To ensure that we have both **socialising** AND **working**, we will be using the so called “Pomodoro” technique: **50min of deep work** (silent), followed by **10min of break** to socialise. Then repeat! If you get into flow, you're also welcome to skip the breaks. It’s an effective way to stay focused - you can read more about it [here](https://en.wikipedia.org/wiki/Pomodoro_Technique). Anyone from any background is welcome, whatever project you are working on or whatever is your personal background. I (the host) speak English and German, so either is fine :-) ——————————————————- AGENDA: * **15min Intro** * Get to know everyone, talk about what you will work on today * **Pomodoro Session** (3x) - *Each Pomodoro session consists* *of...* * ...**50min** of uninterrupted “deep work” (no talking, no interruptions, no phones) * ...**10min** of break: share your progress with others, talk about what you are stuck on etc. * Repeat * Conclude and celebrate your progress Share your progress, socialise and get to know others 😊 ———— We'll be at the Social Hub Berlin (they have a food menu in case you get hungry). The structured part will end at 2:30pm, but you're welcome to stay longer, go for lunch together, or leave earlier. See you there 🩵 **\*\*We'll reserve the long table. Please update your RSVP in advance if you can't attend!\*\***

Are you ready to break, aim, and pocket your way to a fantastic time? Join us for an exhilarating pool playing event that caters to everyone, from beginners eager to learn the ropes to seasoned experts looking for a friendly challenge! **What to Expect:** 🌟 **Fun and Inclusive Atmosphere:** Whether you're a newbie or a pro, everyone is welcome! Our event is designed to create a friendly and welcoming environment for players of all skill levels. 🎓 **Learn the Basics:** New to pool? No problem! Our event will feature a brief tutorial session to get beginners acquainted with the rules, techniques, and fundamentals of pool playing. 🔥 **Friendly Competition:** For the seasoned players, get ready to showcase your skills and engage in some exciting matches. Challenge others, make new friends, and enjoy the thrill of friendly competition. 🍻 **Refreshments and Socializing:** Take a break between games to enjoy some beers and socialize with fellow pool enthusiasts. Share tips, tricks, and stories about your best shots or most memorable games. **How to Join:** **1.** **RSVP**: Secure your spot by confirming your attendance on the Meetup page and purchasing your tickets online. **2.** **Bring Friends:** The more, the merrier! Invite your friends and colleagues to share the joy of playing pool and mingling.

I swear it's a sport! Let's meet and play! **VERY IMPORTANT :** * Please keep reading comments and/or direct messages as long as you are on main OR waiting lists. * Sign-out as soon as you know you won't participate (even from waiting list). * Non-replied direct message ==> declined participation on Friday. **HOW TO JOIN** 1. Sign up to the event 2. Paypal on signup, 12€/person to https://paypal.me/berlinhorizon (use Friend&Family option !) 3. Join on Sunday * Guaranteed refund until cancellation deadline : -48h (=> Friday 1PM). * If **waiting list**, please **don't pay until** you get contacted and **moved to main list**. Contact if needed : berlin.horizon22@gmail.com **__________________________________________________________________________________** **Alternative no paypal (Cash, EXACT AMOUNT please)** 1. Reply 'Y' to RSVP question 2. Join on Sunday * Cancellation deadline (Friday 1PM) remains. * Late cancellation will be asked to pay. **__________________________________________________________________________________** **Timing :** * **13.00** : Meeting outside of main hall (or inside if rain) -> Introduction -> Desk registration (shoes check, rental...) * **13.15** : START PLAY * **14.45** : END PLAY !! Every 10th session you attend is for free !! (in form of a later refund. Still have to pay on the actual participation) **Facility :** TiB 1848 e.V, Columbiadamm 111 (close to Templehofer Feld) **Equipment :** * RACKET : Bring your own or rent one there (2€). * SHOES : checked at desk. Rental for 2€ -> Non-marking -> Light sole -> Not worn outside * Shower, locker available. * Sauna open at TiB discretion. Last but not least : no worries about level, we play for fun before all. The keyword of the event is sweet & sweat ! Looking forward to see you on the court :)

Join us for intermediate and advanced play on **indoor** 2v2 courts. If you are not yet at the intermediate level (F1+) or want to play 3v3/4v4, sign up via [the simultaneous event](https://www.meetup.com/berlin-volley/events/) instead. We play with beach rules: do not use open hands for the first or last touches, do not touch the net, etc. We overbook slightly to ensure we have enough players and to allow individuals to take breaks. After playing, you can join us for socials with drinks and snacks at the bar area. It's recommended that you come 10 minutes early so you have time to change and find the fields. If it is your first time, 15 minutes might be even better. We play in domes that are heated up to at least 15C. You can join whatever court you like and move between courts during the event. We self-organize, so once you finish a game, you can start a rematch, mix with another court, or take a break as you see fit. Upon arrival, join the warmup happening on one of the courts. Join our WhatsApp community via [https://volley.berlin/WhatsApp](https://volley.berlin/WhatsApp) ([QR code](https://secure.meetupstatic.com/photos/event/b/f/d/5/highres_532249109.webp)) Follow us on Insta at [https://www.instagram.com/berlinvolleyball](https://www.instagram.com/berlinvolleyball) **Rules**: Do not join if you have an infectious disease. **Venue**: We play at BeachMitte. There are changing rooms, toilets, and hot water showers that cost 1 EUR. There are no lockers. There is a bar that sells drinks and snacks. **Payment**: You pay in advance via Meetup. Payment via PayPal or Urban Sports Club is not possible. **Refunds**: The venue does not provide refunds. Thus, we cannot refund you either, even in cases where the event is canceled due to bad weather. If you know you can't make it in advance, you can try selling your spot to someone else via WhatsApp or the comment section. You get a full refund if the event gets canceled due to poor attendance. Pictures might be taken and shared publicly, such as on Meetup or Instagram. You can opt out by letting the organizer know you do not wish to be photographed. By RSVP'ing to this event, you acknowledge and agree to the following: Participation in this volleyball event is at your own risk. The organizer is not responsible for any injury, loss, or damage sustained during the event, whether caused by negligence or otherwise. You are aware of the inherent risks involved in park volleyball and voluntarily assume these risks. You agree to hold the organizer harmless from any claims, liabilities, or expenses arising from your participation, including any medical costs. Share anonymous feedback with the organizer via [https://www.admonymous.co/entropy](https://www.admonymous.co/entropy)

Join us for chill **indoor** beach volley! 🏐 🏐 🏐 This event is for everyone who enjoys chill games and is not a *complete* beginner (A1.5+). We play 3v3 (or 4v4) with beach rules. There are no trainers at this event. Register via [the simultaneous event](https://www.meetup.com/berlin-volley/events/) for higher-level 2v2 matches (F1+). After playing, you can join us for socials with drinks and snacks at the bar area. We often play a social deduction game, which you're also welcome to join. We play in domes that are heated up to at least 15C. It's recommended that you come 10 minutes early so you have time to change and find the fields. If it is your first time, 15 minutes might be even better. You can join whatever court you like and move between courts during the event. We self-organize, so once you finish a game, you can start a rematch, mix with another court, or take a break as you see fit. Upon arrival, join the warmup happening on one of the courts. Join our WhatsApp community via [https://volley.berlin/WhatsApp](https://volley.berlin/WhatsApp) ([QR code](https://secure.meetupstatic.com/photos/event/b/f/d/5/highres_532249109.webp)) Follow us on Insta at [https://www.instagram.com/berlinvolleyball](https://www.instagram.com/berlinvolleyball) **Rules**: Do not join if you have an infectious disease. For everyone's safety, we do not allow kicking the ball during games with beginners. Be respectful of your fellow players. **Venue**: We play at BeachMitte. There are changing rooms, toilets, and hot water showers that cost 1 EUR. There are no lockers. There is a bar that sells drinks and snacks. **Payment**: You pay in advance via Meetup. Payment via PayPal or Urban Sports Club is not possible. **Refunds**: The venue does not provide refunds. Thus, we cannot refund you either, even if the event is canceled due to bad weather. If you know you can't make it in advance, you can try selling your spot to someone else via WhatsApp or the comment section. In the rare cases that we cancel an event due to poor attendance, everyone gets a full refund. Pictures might be taken and shared publicly, such as on Meetup or Instagram. You can opt out by letting the organizer know you do not wish to be photographed. By RSVP'ing to this event, you acknowledge and agree to the following: Participation in this volleyball event is at your own risk. The organizer is not responsible for any injury, loss, or damage sustained during the event, whether caused by negligence or otherwise. You are aware of the inherent risks involved in beach volleyball and voluntarily assume these risks. You agree to hold the organizer harmless from any claims, liabilities, or expenses arising from your participation, including any medical costs. Share anonymous feedback with the organizer via [https://www.admonymous.co/entropy](https://www.admonymous.co/entropy)

Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message **Chris (the organizer)** with a **title and short description** of what you’d like to share. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services)

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.

If you enjoy knitting, crocheting, working with yarn, this is the group for you. Meet new friends, bring your projects, learn from others.
We normally meet a few times a month during the week from 6-8pm. We will occasionally meet on weekends during daytime hours.

**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** TBD **YouTube Link** TBA

This meetup is a beginner-friendly, hands-on workshop focused on building shaders in Unity using Shader Graph. Instead of slides or theory-heavy lectures, we'll build real shaders together step-by-step. The format is structured but interactive. You'll watch a quick demo, then build each shader yourself with guidance. By the end, you'll have created multiple shaders you can immediately use in your own projects—and understand how to make more. **What to Expect:** * Build 4–5 complete shaders from scratch * Color tints, snow accumulation, scrolling water, dissolve effects, and more * No prior shader experience required * Checkpoint files provided if you fall behind * Resources for continued learning All experience levels are welcome. Whether you've never opened Shader Graph or just want to fill gaps in your knowledge, this is a supportive space to learn by doing. **Food and drinks provided. Join us to learn, build, and level up your shader skills.**