Red Hat

Join us for a fun session of improv theatre in English! A great opportunity to meet new people in Utrecht and learn something new with Improv Utrecht. Everyone can partcipate, you don't need any experience in theatre nor fluency in English. **Special topic: Movement & Theatre improv** Movement improvisation is a wonderful basis for all other forms of improvisation. Well before we had language we had movement; there is so much that can be expressed without words. Instead of the games that are used in theater improv, we work mostly with “scores”, or a kind of blueprint to what will happen in a space of time. A kind of a structure. We will do exercises that originate from Viewpoints, physical theater, and other forms of improvisation (including a bit of Contact Improv at times), and moving in/with/through the space, non verbal contact and how we can communicate through our bodies. Anyone can participate, you don’t need any experience in movement or theater nor complete fluency in English. This workshop is without shoes: bring non-slippery socks In this session you will: * Meet fellow international and local players. * Learn the basics of improvisation, a 21st-century skill that is useful in many aspects of life. * Get out of your head. * Enjoy failing. * Play funny and moving theatre games. * Laugh a lot, while surprising yourself and others. Doors open: 19:50-20:00, come in with the others ([SIDE entrance, at the Troelstralaan](https://maps.app.goo.gl/ntLDUqbkDxMHjp7B7)). After 20:01 the door may be closed, but you may find a participant who knows the door code. Workshop: 20:00-22:00 Every Friday except in school holidays Afterwards we have drinks at [O'Leary's](https://maps.app.goo.gl/gL878K1MZf8v5fpm7) pub together ### How to sign up Full details about how to sign up and any other questions you may have can be [found on our website](https://www.improvutrecht.nl/drop-in-workshops/). An RSVP in this Meetup event is not enough! We track attendance by counting the attendants in GrasshopperSignup. If you flag yourself as attending and can no longer make it, please delete your x in the sheet so that someone else can take your spot. If you leave your contact details at the Signup form we will contact you if there is a problem with a drop-in you are scheduled to attend. We also have a WhatsApp group with a variety of members from across Utrecht where we share events and updates. You can find our courses and shows on [our website](https://www.improvutrecht.nl). Participation is pay-what-you-can, but we suggest a donation of €10-20 by cash or Tikkie to help cover costs (location, travel) and show your appreciation for our professional trainers who dedicate their Friday to promoting improv.

Op vrijdagavond 27 februari is de EENENTWINTIG Bitcoin Utrecht meetup bij Wonders of Work! Je kunt je drinken betalen met Bitcoin Lightning, dus neem je wallet mee. Tijdens het Vierdevrijdag programma zal er kennis gedeeld worden over diverse tech onderwerpen. Heb je zelf een onderwerp over Bitcoin, neem dan contact op en we zetten deze op het programma. Het doel van deze meet-up is vooral om andere (toekomstige) bitcoiners te ontmoeten. Je bent welkom vanaf 19.00 en duurt zolang er mensen zijn (maar uiterlijk tot 22.00). Mocht je om 17.30 mee willen eten, geef dat dan aan op Telegram of Signal. Meer info over Vierdevrijdag is beschikbaar via https://wondersofwork.nl/agenda/vierdevrijdag-voorheen-tech-tuesday-27-02/

Let’s go to all nighter Speedy J at Club Basis

*Since the guided meditations for this event are in Dutch, this description is too.* Wil je je drukke week afsluiten en ontspannen aan het weekend beginnen? Dan ben je geheel vrijblijvend welkom bij de vrijdagavond meditatie van [Jewel Heart](https://www.jewelheart.nl/). Deze meditatieavond heeft een licht en open karakter. De meditaties bestaan uit drie delen. We beginnen met het gewaarworden van je lichamelijke sensaties. In een korter deel twee doen we een loopmeditatie en in deel drie is er een eenvoudige, geleide visualisatie meditatie. Het geheel wordt afgesloten met een gesprek onder het genot van een kop thee, voor wie daar zin in heeft. 📍[Jewel Heart, Hatertseveldweg 284, Nijmegen](https://maps.app.goo.gl/D4FzqLbkaqs2JNDG8). Loop de oprit op en dan is de ingang aan je rechterzijde 🕒Zaal open vanaf 19.30 uur, meditatie van 20.00 tot 21.00 Je bent van harte welkom! Aan deze activiteit kun je per keer meedoen. Er zijn geen verplichtingen. Op vrijwillige basis kun je op de avond zelf een donatie doen. Kijk ook naar onze -[Open activiteiten](https://www.jewelheart.nl/nl/open-activiteiten/) -[Cursussen](https://www.jewelheart.nl/nl/cursussen-overzicht/)

**This might be the girls night you didn’t know you needed.** Many women are living in constant “on” mode- always busy, always giving. And somewhere along the way, we forget how good it feels to simply *be together*. This is your invitation to a real **girls night, where you can come as you are.** Every 3 weeks we come together to relax, laugh, connect and support each other — without pressure, without fixing, without performance. **When women gather in a safe and supportive space, something powerful happens.** We uplift each other through shared laughter, honest conversations, and non-judgement presence. Being around other women who get it can make everything feel a little lighter and brighter. It helps us feel less alone, more supported, emotionally stronger - sometimes simply by being in the same room together. Sometimes we talk. Sometimes we listen, Sometimes we laugh - and even sing - until our bellies hurt. You’re free to share what’s on your mind, or simply enjoy the energy of being around other women who get it. There’s no agenda. No judgement. Just genuine connection, joy, and friendships that feel *easy and real.* And often, there’s that quiet thought: *“oh wow, I didn’t know I needed this.”* All I ask is that you come exactly as you are — tired, joyful, quiet, loud, curious, or unsure. Everything is welcome. We meet every 3 weeks - in Utrecht, Amsterdam or Leiden - because connection grows when we keep showing up for each other — not perfectly, just honestly. ✨ Come as you are. ✨ Leave feeling lighter, more connected, and a little more yourself.

SEA (Search Engines Amsterdam) is coming ! This session focuses on **IR evaluation for LLMs and agents**, featuring two speakers: **Arthur Câmara** from **Zeta Alpha** and **Mouly Dewan** from **University of Washington**. **Location:** Science Park 904, Room C3.161 **Date**: February 27 **Zoom link**: [https://uva-live.zoom.us/j/65011610507](https://uva-live.zoom.us/j/65011610507) Details below: **Speaker #1**: **Arthur Câmara** from **Zeta Alpha** **Title**: Evaluating (and automatically improving!) Deep Research agents **Abstract**: Given a user's complex information need, a multi-agent Deep Research system iteratively plans, retrieves, and synthesizes evidence across hundreds of documents to produce a high-quality answer. In our case, an *orchestrator agent* coordinates the process, while parallel *worker agents* execute tasks. Current Deep Research systems, however, often rely on hand-engineered prompts and static architectures, making improvement brittle, expensive, and time-consuming. Similarly, evaluating the quality of these agents is far from trivial, specially when no golden-answer exists. At Zeta Alpha, we are looking into improving **both** of these aspects and in how they may interact. Starting from our LLM-as-a-judge project RAGElo, we are looking into how the LLM-as-a-judge framework, specially using pairwise comparisons, may lead to better agents that can self-play and explore different strategies to produce high-quality Deep Research systems that match or outperform expert-crafted prompts. **Bio:** I’m a Senior Research Engineer working on agentic search and evaluation at Zeta Alpha, an R&D-oriented startup based in Amsterdam. Zeta Alpha develops a sovereign AI platform for enterprise costumers allowing large companies to deploy agents that work on their private data, with a high-quality search backend. Before joining Zeta Alpha, I obtained my PhD from TU Delft, working on Search-as-Learning and Neural IR. **Speaker #2: Mouly Dewan** from **University of Washington** **Title:** LLM-Driven Usefulness Judgment for Web Search Evaluation **Abstract:** Evaluation is fundamental to optimizing search experiences and supporting diverse user intents in Information Retrieval (IR). Traditional search evaluation methods primarily rely on relevance labels, which assess how well retrieved documents match a user's query. However, relevance alone fails to capture a search system’s effectiveness in helping users achieve their search goals, making usefulness a critical evaluation criterion. Recent LLM enabled evaluation works have mostly focused on relevance label generation. In this paper, we explore an alternative approach: LLM-generated usefulness labels which incorporate both implicit and explicit user behavior signals along with relevance to evaluate document usefulness. We introduce Task-aware Rubric-based Usefulness Evaluation (TRUE), a reproducible rubric-driven evaluation framework that leverages iterative sampling and Chain-of-Thought reasoning to model complex search behavior patterns. Our comprehensive study shows that: (i) pre-trained LLMs can generate moderate usefulness labels when provided with rich session-level context; and (ii) LLMs with TRUE framework outperform existing state-of-the-art methods as well as our systematically constructed baseline. We further examine whether LLMs can distinguish between relevance and usefulness, particularly in unique divergence cases between them. Additionally, we conduct an ablation study to identify key features for accurate usefulness label generation, enabling cost-effective evaluation. Overall, this work advances LLM-based evaluation beyond relevance by proposing a reproducible and scalable framework for usefulness judgment, addressing key reproducibility challenges and supporting large-scale LLM-based evaluation. **Bio:** I am Mouly, a 3rd Year PhD student in Information School at the University of Washington, Seattle. My research lies at the intersection of Interactive Information Retrieval (IIR) and Conversational AI, with an emphasis on developing and applying novel evaluation methodologies, particularly leveraging LLMs (LLM4Eval) to improve search, recommendation and proactive conversational information seeking systems. **Counter:** SEA Talks #299 and #300.

**Join us for the second event at our new location: *The Social Hub Amsterdam City!*** **Tech Drinks + Pitching** is our regular meet-up for the tech and entrepreneurial community in the Netherlands, hosted in Amsterdam. Each month we bring together tech start-ups and individuals to have drink, pitch ideas, swap stories, share failed experiments, and plot a bit of world domination. **If you're interested in pitching during the event, please apply via this** **[form](https://airtable.com/appljL4XpOxxrhj9N/pagARYxyKd1i9mD4n/form).** Follow Tech Makers **[here](https://luma.com/techmakers?k=c)** for upcoming events, interesting people, and a little mischief *Looking for a cofounder? Try the matching platform we created, [https://findyourcofounder.nl](https://findyourcofounder.nl/)* *Register for free and let's boost entrepreneurship in the Netherlands !!*

Join in for a morning of crafting & chatting over a drink. Just bring your own project and payment for drinks. Meet fellow crafting enthusiasts, whether it's knitting, crocheting, stitching, origami, or something more unique! We talk about our projects, exchange tipps, but also just get to know each other and enjoy a relaxed Sunday morning in good company. All ages, levels and crafts welcome! And don't be shy, we have newcomers most weeks! **We have limited space at the café, so if you've RSVPd and can't make it, please cancel as early as possible so another person can join!** We now also have a WhatsApp group, where we want to organise get-togethers and other events. Ask one of the organisers at the next Meetup you join for more information and access.

**🟢🟢 ABOUT OUR WATERCOLOR PAINTING PARTY / AMERSFOORT** 🎨🥳🍷🏢 Amersfoort - Utrecht Province / Center of the City / Easy access from train station. Create your very own **portrait, animals, landscape, or figurative** masterpiece in only **2.5 HOURS using watercolor and our secret mixed media techniques!🧪🧫.** This session is not about perfection; it is about capturing emotions and personal expression. **No experience required** **\- trust us\!** our professional artist will guide you step-by-step through this unique self-portrait journey. You can look forward to a fun and exciting evening with other participants, **so it doesn't matter if you want to come with friends or alone - you are very welcome!** This is the perfect after-work or weekend activity where you'll unleash your creativity while creating something deeply personal. You will create a portrait combining painting, drawing, and creative techniques to bring your unique vision to life. When finished, you'll take home your newly created self-portrait artwork to cherish or share with loved ones. Each participant will have pencils, colored pencils, watercolor, acrylic/gouache paints, and a surface. You'll work from an image we will bring. **🎟️ READY TO HAVE FUN?** Get your Ticket and book your seat **✨[HERE](https://buymeacoffee.com/artloversclub/e/430555) ✨** 🤔 **Questions?** Speak with a member of the team in **[WHATSAPP HERE](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) 💬** .................................... **🟢🟢 WHAT'S INCLUDED?** 🔶 All supplies included 🔶 **2.5-HOUR [TICKET SESSION](https://buymeacoffee.com/artloversclub/e/430555)** 🎟️ 🎁 **EXTRA BONUS:** **FREE TICKET**🎟️ to participate in our Drawing and Painting Cafes in Amersfoort or Our Online Still-Life sessions if you live far away. 🔶 New friendships and Conversations💬 🔶 Freedom to work at your own pace 🔶 **English tutored activity** (And of course, you can speak in your local language with your friends!🍷🥰🥰🍹) ⭐ No experience needed **🎟️ BOOK YOUR SEAT🪑 IN ADVANCE ✨[HERE](https://buymeacoffee.com/artloversclub/e/430555) ✨!** 🤔 **Questions?** Speak with a member of the team in **[WHATSAPP](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) 💬** **🕑 2026 CALENDAR OF UPCOMING EVENTS:** First Sunday or every month from 11.00 AM - 1:30 PM. .................................... **🎟️ ART LOVERS CLUB / ABOUT US** **ART LOVERS CLUB** is a community where art enthusiasts come together to explore their creativity and connect with new buddies through various events and sessions ( In-Person and Online) . Whether you're a seasoned artist or just starting, we have something for everyone!⭐ To share with you more about what we do, you can see here the overall atmosphere of our events in Amersfoort and also follow us if you want⭐: **[https://www.instagram.com/art_lovers_social_club](https://www.instagram.com/art_lovers_social_club)** 🤔 **Questions?** Speak with a member of the team in **[WHATSAPP](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) 💬** **🕑 2025 CALENDAR OF UPCOMING EVENTS:** First Sunday or every month from 11.00 AM - 1:30 PM. **See you soon. We are looking forward to painting and having Fun Together! 🎨👩🏼‍🎨👨🏼‍🎨👩🏼‍🎨🧑🏼‍🎨🎈**

JULIANALAAN 100 park Angerenstein ( Entrance )

Give your still good laptop a second life instead of ditching it because Windows 11 says it is no good... Or you heard Linux is cool. If you have a backup of your data, that is great, else indicate that you do not, so we can help you. Do so in an extra message, else I don't receive your information. Geef je laptop die het nog prima doet een tweede kans in plaats van hem af te schrijven omdat Window 11 dat zegt... Of omdat je hoorde dat Linux gaaf is. Als je al een backup van je data hebt gemaakt is dat perfect. Of verwacht je dat wij dat doen? In dat geval graag aangeven hoe vol je harde schijf nu is... Doe dat in een extra bericht, want de info komt anders niet door.

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **Join the Utrecht Coffee Club and make new friends!** Each meetup brings together 4–6 people for casual conversations over coffee. We use the Groupvibe platform to facilitate the meetup and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com/](https://groupvibe.com/) We’ll share the exact location of the upcoming meetup the night before only if you have bought a ticket or membership plan. **Why this works:** \* Smaller groups make real conversations easier. \* Discover new cafes in your city, together. \* Curated cafes with good coffee and vibe. \* If you hit it off with your group, there’s plenty of time to hang out afterwards. **Note:** RSVPs on Meetup don’t reflect total attendance. Many attendees register directly via our website. The event on [Meetup.com](http://meetup.com/) is only a placeholder. This meetup is organized by Groupvibe, a small team passionate about helping people form meaningful friendships offline.

Hello filmmakers, we welcome you to our next in-person networking Meetup! On Sunday March 1, we will meet again in the city center of Utrecht. We will meet in Lebowski (a cozy bar in the shadow of the Dom Tower), without a designated area, so this Meetup will be a quite informal, unstructured event, aimed at one-on-one networking, and getting to know other (aspiring) filmmakers. This meetup provides filmmakers (writers, directors, actors, composers, cinematographers, editors, everyone..) with the opportunity to meet and network with one another, share ideas, and potentially collaborate on present or future projects, all in a relaxed and informal setting. So if you have any specific project in mind that you would like to start up and are looking for people to collaborate with, or if you want to participate in upcoming projects initiated by others, don't hesitate and join this Meetup! If you want to exchange ideas before the Meetup, please do so on our Discord channel. The invite link can be found on our web page: www.openfilmmakingnetwork.nl Filmmakers with an idea are warmly invited to share it with us during the Meetup, in the form of a well-prepared tagline and/or pitch. So bring your ideas, skills and creative self to this meeting & see you then! This is a free Meetup. Please note there is no group account for our table—drinks and food should be ordered and paid for individually at the bar. Keep an eye on this page, as we sometimes move next door to Bar Walden, in which case we'll announce it here. btw: maybe needless to say, but you can walk in (and out) any time from 2 to 5. PS: Please update your RSVP so we'll know who to expect.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

Do you feel introverted when you are in a group setting? Are you shy? Do other people have more fun than you do? There are simple life hacks you can use to improve your connection to others and improve your social life. Talking is one thing. Truly connecting is altogether another. It's the whole experience of connecting with people and forming relationships. It includes the joy, understanding, and love formed among people. * In our meetings, you will learn: * A simple life hack to increase your liking and tolerance of other people, or even of yourself! * How to become more interested and enjoy conversations with people. * How to be comfortable in social settings. * How to be yourself * How to become more extroverted and, * How to make connections with people. Feeling lonely, isolated, or bored? This local meeting is exactly what you need! Come join us! Be sure to click on the red "Attend" button below to come to the local event. We look forward to seeing you there. This group is created by the Dianetics and Scientology life improvement center.

Meeting @ Improving's office in Downtown Columbus, near Cosi. Parking is paid, food & drink are free! This time we're hanging out after the long winter break. We are going to look at a group-member's project used to help learn the fundamentals of Go, and if time allows, we can take a look at how we like to build Go projects using AI.

Do you sometimes feel like you do well in life then something happens and you slide back, never quite getting ahead. At this Meetup you'll find out how to identify what actually causes the lows, the highs and everything in between. More importantly you’ll get the secret of how to gain control over your life so the highs are higher and the lows go away. Wouldn’t it be nice to stop the wild roller coaster ride for good? Or at least make it a fun roller coaster ride, with more ups and downs. There is a hidden factor that will be going over and you’re going to be quite surprised what it is and how much it affects your life. Be sure to click on the red "Attend" button below to come to the event. We look forward to seeing you there. This group is hosted at the Dianetics and Scientology Life Improvement Center.

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

Do you want more Self Confidence, less Self Doubt, more Happiness, less Anxiety, and more Love? This event is an introduction to how to handle irrational emotion. How often are yours or another's emotions out of control? What is that about??? I have asked these questions and after much search have found answers and am sharing. Maybe you have suffered a traumatic experience, a deep loss or been through a painful breakup? After that, you try to move on but you just can't. Possibly you have a thought or emotion that hangs around for days and you just can't shake it. What is all this stress, anxiety, depression, and self doubt? It's just crazy! It's not the real you. You can find out what is at the root of all this. This is a local event. Areas you can change with the right information: * Control of unwanted emotions * Lack of confidence * Grief * Anxiety * Anger management * Creating ideal relationships * Memory * and more... This is a local meeting that can start you on the way to a better life, more confidence and less negativity. All the happiness you have lies within you. Let's find it! Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Dianetics and Scientology life improvement center.

**New Dojo Location!** **Draft Day Columbus** 1130 Dublin Road Columbus, OH 43215 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)