Deep Reinforcement Learning

Some friends of PyData are organising the following event, and we think it would be great to share it with the community. Pixels2GenAI is an exhibition by software developers creating computer art. We have used equations, algorithms, and AI models to generate images and installations. The artists explore the space between hand-programmed images, the aesthetics of mathematical rules, and AI as an art-making tool. Works by the following artists will be on display: * Burak Kağan Yılmazer * Sara Maras * Alexander Hendorf * Hansu Kim * Maris Niewenhuis * Ewa Rother

***This is Heartcore:*** For fans of post‑hardcore, metalcore, and the emo‑soaked places in between. **A warm place for the heart shaped ones :)** We're meeting at least once a month to hang out, exchange new music, and make new friends. This time we are meeting at **Roderich** to reminisce in the best of emo, pop punk and metalcore.🥀 Join us for a cocktail and tell us all about your favourite bands and why they matter to you so much. We are meeting in front of the restaurant, if you can't find us, just comment in the event! Can’t wait to see you there, heart-shaped friends! 🖤✨

Sunday afternoon is perfect to play some lazy liar games, if you have nothing better to do. We are a group of friendly people who will teach you how to play these easy social deduction games . Amazing way to meet new people and have some good company during weekend. Today we are saying goodbye to Brewdog - after almost 10 years **IMPORTANT** It's relaxed playing, nothing for ambitious gamers or people who take it too serious. Waiting list policy: When spots open up, we try to bring in a good mix — some regulars we can count on and some new faces to keep things fresh. That means not everyone will get picked every time, but don’t take it the wrong way — it’s just about balance. There’ll always be more chances to join!

**You like sketching but feel your drawings lack depth?** **A solid grasp of the basics will definitely help.** Learn or refine pencil hatching and shading techniques and embrace the potential of a medium as powerful and versatile as the pencil! Take your pencil skills further with exercises to build tone, texture and volume. We will start from the basics with a broad overview, covering pencil softness, pressure control, angle, tip shape, paper tone and highlights, gradually progressing to more advanced hatching techniques. This format offers a flexible and supportive approach, adapting to each participant’s level, from helping beginners get started to guiding intermediate artists through their individual challenges. I am Alessia Sinopoli, an Italian professional artist based in Berlin, and I will be your instructor throughout this journey. **What we will do step by step:** **We will combine theory and practice with hands-on exercises.** Introduction to materials and getting familiar with the tools we will use, exploring the differences between pencils of various hardness and using graphite grades such as 2H, 2B and 6B to achieve a rich tonal range from light to dark. Hand posture and proper pencil grip for shading, with control of pencil angle. Pressure control training to learn how to vary pressure and achieve smooth tonal transitions. Contouring to define the forms with attention to angle and direction. Layering and blending by building up graphite in light layers, practicing hatching without blending tools to gain full control over tonal transitions, and then experimenting with blending to observe the differences. Enhancing highlights by using white pens or precision erasers to reinforce the brightest areas of the drawing. Sketching practice by drawing simple objects such as cherries, spheres or apples, focusing on progressive construction and conscious use of hatching to define form, depth and contrast. Discussion of common mistakes, identifying frequent pitfalls and learning how to avoid them. Personalized guidance and open Q&A throughout the workshop. **Break and refreshments:** While drawing, we will enjoy some tea. Between the first and second parts of the workshop, we will take a break, a perfect moment to connect, share a cup of coffee and enjoy a sweet treat together (vegan option available). **What is included?** **Leave home as light as a butterfly, everything is provided!** All materials are available for use during the workshop: graphite pencils of various degrees of hardness, high-quality drawing paper, precision eraser and erasers, pencil sharpeners and drawing references. Refreshments are included: tea, coffee and a sweet treat. **Who is this workshop for?** This workshop is for those who want to spend a cozy and relaxing Saturday in a creative environment while learning. We will engage intensively in shading and learn essential techniques that provide a solid foundation for drawing with pencils. *A solid foundation gives your creativity room to flourish, helping your drawings become uniquely yours.* **Location:** The workshop takes place at Artcave Berlin, an inspiring art studio with a strong focus on community projects, offering kind and welcoming hospitality.

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)

**Who needs Sweden when you can enjoy an idyllic hike and a picnic at deep blue Liepnitzsee: One of the most beautiful and clearest lakes.** **HOW DO I JOIN THIS EVENT?** Click on link below to get complete info about this event & to get your ticket asap. [https://swedish-lake-hike-29mar2026.eventbrite.de](https://swedish-lake-hike-29mar2026.eventbrite.de) **WHY GO?** Experience an idyllic adventure as you explore the serene beauty of Liepnitzsee, one of Brandenburg’s clearest lakes, resembling the tranquil landscapes of Swedish and Norwegian lakes. This guided trip covers a 13-kilometer journey through lush beech forests, culminating in a community picnic, scenic breaks, and an optional swim. **WHAT IS THE PLAN?** **9:00 AM:** Meet in Berlin Hbf train station and wait for train **9:30 AM**: Catch train for Bernau (RE 3) and then bus (Bus - 894) from there to Wandlitz **10:30 AM:** Arrive at Wandlitz and meet the other participants that are joining directly from here. We will then do a short introduction (Why are you here? Which animal would you be?) We start our hike by walking through the forest from Wandlitz to Liepnitzsee. **01:00 PM:** At the North peak of Liepnitzsee we will have a picnic on the beach. Here you will have the opportunity to relax & chill. **02:00 PM:** After our break we continue to walk along the shore of Liepnitzsee, stepping by “Regenbogensee” until we circled the whole lake once. **03:00 PM:** At Brauhaus Wandlitz we will enjoy some food and cold drinks and reminisce about the day. There is a Veggie-friendly Menu. If you like beer, you will love this place! They have different sorts of home-made beers. **04:30 PM:** Arrive back at Wanlitz train station and proceed to bus stop to catch Bus (Bus 894) to Bernau and then onwards from there to Berlin Hbf. **6:00 PM:** Arrive in Berlin Hbf **What is included?** * Community leader & guide for the entire duration. * Transportation to and from Berlin (based on the ticket option selected). * Access to google photos album dedicated for this trip for sharing all your amazing pics & videos from the trip. * Access to a WhatsApp group for confirmed participants. **Note:** Please contact us immediately if you do not have WhatsApp & we can make alternate arrangements from our end to ensure you do not miss out on any communication. Please do join our WhatsApp / Telegram channel for updates about our future trips including possible early bird discounts, contests etc. 1. [Whatsapp Channel](https://bit.ly/unt_travel_channel) 2. [Telegram Channel](https://t.me/urbanaturetravel)

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!\*\***

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.**

Hi everyone. We'll meet and play a relaxed game of ultimate in Volkspark Rehberge if the weather cooperates. Our games focus on having great team play, where the teams work together to advance the disk down the field. It's more important to work well together as a team than have a few star players get a point with lucky shots. For this reason, players of all skill levels (especially those who have never played) are welcome to join Bring plenty of water, shoes you can run in and comfortable clothing that can get a bit dirty. Although we're an established group, newcomers are always welcome. After the game we try to spend some time together and have fun. Finding us: We meet in this big grassy area, it's a short bike ride from the subway stop Rehberge on the U6 or Amrumer Strasse on the U9. It can be a bit tricky to find the first time, so we've got a few methods to help out (don't trust the meetup map pin, it often shows some point in the park, not the exact spot where we are) 1. GPS: 52°32'54.9"N 13°19'51.0"E ; 52.548581, 13.330842 2. Google Maps: https://goo.gl/maps/xbZgaXzMSMt 3. the helpful picture here https://secure.meetupstatic.com/photos/event/2/8/8/f/highres_451930383.jpeg *This event may also be photographed and/or video-recorded, and published on social media channels such as meetup and eventbrite.* *By participating, you acknowledge and accept the risk of injury while playing Ultimate. Although adherence to the rules, proper equipment, and common sense reduce this risk, the risk of serious injury does exist; and, you willingly and freely assume all such risks.*

Sunday will hopefully be a sunny day. We’ll meet at S-Bahn station Grünau, on the sidewalk level inside the station (exit Adlergestell/Wassersportallee). We will hike this tour: https://www.komoot.com/de-de/discover/S%E2%80%91Bahnhof_Berlin-Gr%C3%BCnau/@52.4128380,13.5736270/tours?sport=hike&map=true&toursThroughHighlight=388182&focusedTour=1268215602&pageNumber=1 , but make a shortcut in the middle of the tour. Please prepare for a rather speedy hike. (Bring comfortable shoes, for instance.) There are no cafés or restaurants along the way, so bring your own food and drinks. If you need to contact other participants during the hike (for example, to find out where to meet us if you are running late), please use the Signal group link that I will send to all participants via private message three hours before the hike. This timing is intended to prevent non-participants from misusing the link for unwanted advertising, which has happened in the past. Signal also allows us to share our locations during the hike without involuntarily forwarding this information to the intelligence services of authoritarian or non-authoritarian states. For all other purposes, especially socialising and posting photos, please use the Telegram subgroup 'Event Chat & Photos': https://t.me/addlist/KAOk2PA4BDE0ZTY8 . The hike will take place if at least 6 people sign up. As long as there are more than 6 people, you can sign up and cancel as many times as you like. If there are 6 or less people, please avoid cancelling, as this might make the other participants feel insecure about whether the hike will take place (or whether there is something wrong with the hike and they should cancel as well --> [Matthew effect - Wikipedia](https://en.wikipedia.org/wiki/Matthew_effect)). If there are less than 6 participants, the hike will also take place unless the majority of the participants are in favor of canceling the hike.

**✧ FOR YOU ✧** Maybe you’re curious about eroticism as life force — about playing with sensuality, clothing, and aliveness in a safe(r) space. Maybe you just love good music and want to dance outside the club. CLOSER x-dance is for all who want to explore the meeting of movement, creativity x life force energy. CLOSER x-dance is open to all, creating a safe(r) space for different horizons, sexual orientations and experiences. ***No previous experience required.*** **✦ WHAT IS CLOSER x-dance ✦** CLOSER x-dance is a dedication to unshackling any chains that teach us to separate our inherent er-t\*c aliveness from the rest of ourselves. It is an invitation to embrace the sensual when it arises, to grant permission to our emotions, and to move with creative play in a spontaneous movement journey. 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 at www.samarlinn.com/events 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

Hallo zusammen! In Rahmen der PAKD Gallery Kurse bieten wir euch einen Zeichenkurs an. Wenn Ihr Zeichnen liebt und eure Fähigkeiten weiterentwickeln möchtet, dann seid Ihr hier genau richtig. In diesem Video erzähle ich euch von meinem Kurs für realistisches Zeichnen mit Bleistift - und wie er Eure künstlerische Arbeit auf ein neues Level bringen kann. Hattest Du schon immer das Gefühl, zeichnen können zu wollen - Dir fehlt aber die richtige Anleitung? In diesem Kurs lernst Du realistisches Zeichnen mit Bleistift, einfach, verständlich und Schritt für Schritt: • Korrekte Perspektive • Licht und Schatten • Materialdarstellung wie Glas, Keramik, Stoff, Metall Der Kurs ist perfekt für Anfänger und für alle, die ihre Fähigkeiten verbessern möchten. Wenn dieses Video Eure Leidenschaft für das Zeichnen mit Bleistift geweckt hat, dann schickt mir einfach eine E-Mail und lasst uns gemeinsam eure Reise in die Welt des realistischen Zeichnens mit Bleistift beginnen. Kleiner Kurs, große Wirkung. Maximal 12 Teilnehmer\*innen! Anmeldung:Ä [kifan@pakd-gallery.com](mailto:kifan@pakd-gallery.com) Sichere dir deinen Platz, bevor alles ausgebucht ist. Dienstag 18:30 - 21:30 Uhr. 25€ für eine einzelne 3- stündige Einheit 200€ für ein 10er-Paket, flexibles einlösbar.

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

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.

**The Data-Driven Brand: Using Analytics to Shape Perception** Can you use analytics to improve tacos? This being CBUSDAW, we think the answer is probably “yes”, but we’re not sure how to implement or test this theory. For our April meetup we’ve got Sara Kear, CMO of Condado Tacos, to investigate this delicious question. Sara will explore how she blends quantitative data and qualitative customer feedback to shape brand positioning and drive business decisions. We all know that marketing and analytics go way beyond attribution. Sara will show how Condado uses customer insights to inform product and pricing strategy. She’ll also highlight how Condado leverages customer feedback at scale to influence operational priorities, positioning marketing as the voice of the customer across the organization. In the last 12 years Condado has gone from one location in Columbus to 52 locations across 10 states, so we’re guessing there’s more to that growth than really good guac (though the guac probably helps). Ultimately, this talk focuses on the intersection of art and science—using data to inform creativity and build a brand that resonates with customers in a measurable way. **About Our Speaker** Sara Kear is Chief Marketing Officer at Condado Tacos, where she oversees brand, restaurant design, menu and pricing strategy, off-premise including catering, and customer data strategy. Since joining in 2021, she has helped grow the brand from 19 to 52 locations while building a data-driven marketing organization focused on loyalty and customer insights. Condado has since been named to the Inc. 5000, recognized as Breakout Retailer by Chain Store Age, and consistently ranked among FastCasual’s Top 100 Movers & Shakers. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).

12:45-3:45 in the Meeting Room on the library lowest level. Bring your yarn projects, meet new friends. If you plan to attend, please RSVP yes. If you can’t attend, please change your RSVP to no. This helps anyone who is waitlisted and it allows me to have an accurate count of attendees as our space is quite limited. Plenty of parking in the lot, in the overflow lot across the street, and on the street. See you there! Winter Note: If the weather is bad and I have to cancel the Meetup, i will issue the cancellation not later than 3 p.m. of that day.

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads**®**, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar