Stream Processing

The **Digitec Galaxus Product Development Meet-Up** is back — this time diving into **recommender systems** with two talks bridging data science and engineering practice. **Talk 1: Insights from Building and Operating a Recommender System for Migros Supermarkets** *Max Nolte – Data Scientist & Team Lead at Supermarkt IT, Migros-Genossenschafts-Bund* When you think of a Migros supermarket, you don't usually think about recommender systems. Over the past four years, my team and I have built and operated the engine behind personalized Cumulus coupons and a few other digital touchpoints. I'll share how it works, why we invest in it at a brick‑and‑mortar retailer, and what we've learned, covering data, models, measurement, and the practical realities of running it day to day. **Talk 2: Recommendations at Digitec Galaxus — From Data Science to Engineering Practice** *Michael Weiss, Senior Software Engineer & Robert Rosenbach, Senior Data Scientist – Digitec Galaxus* How do you go from a promising model to a recommender system that is fast, scalable, and maintainable in production? We will walk through the Digitec Galaxus recommendation stack end to end: the engineering architecture that keeps recommendations snappy and reliable, and the data-science side of model training — what to optimize for, which input signals matter, and the trade-offs involved in both. The two presentations will take roughly a combined hour, leaving plenty of time for discussions, questions, and exchange afterwards over drinks and snacks. Whether you come from a software engineering, data science, product, or any other background — we'd love to have you join us!

**After Work Painting in der Kreativwerkstatt Zürich** Feier den Feierabend mal anders! Anmeldung: [www.kreativwerkstatt.design](http://www.kreativwerkstatt.design) Tauche ein in Farbe, Pinsel und gute Vibes – ganz ohne Druck oder Vorkenntnisse. Wir malen, plaudern, trinken vielleicht ein Glas und lassen den Alltag einfach draußen. Kleine Runde – max. 10 Personen – so bleibt’s persönlich, gemütlich und kreativ. Ab 18:30 Uhr geöffnet – komm, wann es dir passt! Donnerstags (check die aktuellen Daten auf unserer Homepage) \-\-\- End your workday in a creative way! Join us for a relaxed evening of painting, chatting, and unwinding — no pressure, no experience needed. Just drop in, grab a brush, and let your creativity flow. Small group – max. 10 people – cozy, personal & inspiring. Doors open at 6:30 pm – come whenever it suits you! Thursdays (check the latest dates on our website) Sign up at [www.kreativwerkstatt.design](http://www.kreativwerkstatt.design)

Hare is Keys to the Treasure. Since Zurich Marathon weekend is approaching, this'll be an easy and short trail with a focus on fluid replenishment :) **Where**: Brauerei Oerlikon, in Oerlikon. Look for English speakers wearing running gear. **When:** We'll meet at 6:50 pm to start at 7:00 pm. There's a charge of CHF 5 for participating, which covers all you can drink beer/cider (and non-alcoholic alternatives) plus snacks afterwards. **All Welcome:** If you are new, curious, and want to get out of the house, stretch your legs, talk shit, enjoy a drink, and hopefully a laugh, then here's what you need to know: • We are a social running/walking group, physical fitness is not required, but a sense of humour is useful. • The aim is to find the '*Beer Stop*' at the end of the '*trail*' and have fun. • 'True Trail' is typically 4-7 km. Some will go less (especially those walking or walk/running), and some over-achieving fast runners will go further. • The '*Hare*', which changes each event (along with location), cleverly lays the trail (typically with flour marks) so that everyone reaches the end at the same time. • There is always a place to deposit your bag and sometimes a place to change. • **After Trail**, we group for \~20-40 minutes for drinks, snacks, and some fun. This '*Circle*' is typically outside, so leave something warm in your bag in winter (and bring a flashlight when it's dark). If you don't want to stand around drinking afterwards, you can head home. We occasionally all go to a restaurant afterwards. **Why bother leaving your warm & dry sofa?** If you enjoy getting outside, being around people, and doing something a bit different, you will probably enjoy hashing. Exercise is important, and this is probably the least boring way to get it. 'Hashing' and the idea of some physical activity to work up a thirst, have been around for almost 90 years and there are groups (*Hashes*) in most major cities. Its humor and 'traditions' can be explored on the internet - **or you can just come along and find out.** *See you there.* We are of many nationalities, all ages, full of misfits and idiots (at least there is no one taking themselves seriously!) and always welcome newbies 'Virgin Hashers' and visitors from other groups. For more about Zürich Hash House Harriers, check out [www.zh3.ch](http://www.zh3.ch/) ( [http://www.zh3.ch/](http://www.zh3.ch/) )

Do you want to run regularly? Together in a group? Then run with us! #### **Every Thursday, 7pm at Lochergut, Zurich** We run about 7km and adjust the speed depending on the runners who join us. For us, running isn’t just about fitness and competition, it’s about community and connection. We believe that nobody should have to run alone, and that by running together, we can push each other to be stronger and more resilient. We look forward to welcoming you to the next run 🙌

It all sounded straight forward. Then the project started... Join us for an informal evening with fellow Agile practitioners, Scrum Masters, project managers, coaches, and anyone working with change, delivery, or transformation. We’ll meet at a local pizzeria, have some good food, and talk about the things that usually come up once the theory meets reality — challenges, lessons learned, different approaches, and questions we’re still figuring out. Nothing formal, just a chance to exchange ideas, meet people from the community, and have interesting conversations. Because some of the best discussions don’t happen in meeting rooms. They happen in the second floor private room of a pizzeria. 🍕 **The venue:** Da Raffaele brings a slice of Naples to the heart of Zürich's Altstadt. Think 48-hour dough, a 500°C wood-fired oven, and an amazing pizza. Two minutes from Central, close to HB — easy for everyone coming from across the city or the S-Bahn.

Hello Capitalists! This event is the meetup's regular gathering. Normally the event will be at the Insider Bar on Löwenstrasse, very near to the train station. https://www.insiderbar.ch/ We will start at 19:00. Please be constructive in your discussions, do not criticise other people's strategies and be open minded to new ideas. We're looking forward to seeing new people as well as the regulars. Thanks a lot! Andy

2 courts

Dear All, This session is mainly for the people who want to learn kundalini yoga/meditation in a traditional way. Traditionally the master will transfer his/her kundalini energy to the student to activate his important chakras (energy centre) including Third Eye and Crown Chakra. The student can start to feel his/her Kundalini Energy is rising from their base of the spine and feeling the energy vibration(Consciousness) in the third eye (the space between the eyebrows) from the Kundalini Activation. This session is helpful for the beginners who want to learn simple yoga-meditation exercises also. This is a general session to experience your inner kundalini energy. But if you need proper kundalini activation(Shaktipat), then pre-registration is mandatory. **What is included in this session?** * Simple stretching practices for Hip and Spine (not complicated, even beginners can do) * Kundalini Breathing Techniques * Sound Energy (Mantra) Meditation * Energy Healing Techniques * Formal Kundalini Activation (optional and only for pre-registered people) * Chakra Meditation * Yoga Nidra (Relaxation) **Some of the benefits of Kundalini Energy Activation are:** * Keeps the body healthy * Mind attains its natural peaceful state, so the meditation becomes easy. * Breathing pattern will be harmonized * Stress release and peace * Clear & sharp intellect * More intuition * Inner happiness * Clairvoyance and Clairvision * and to the ultimate SELF realization (which will lead to the blissful state - our true state) with enough years of practise **DONATION BASIS** **About the Teacher who conducts this session:** The kundalini wisdom teacher Jayaprakash is from India. He is practising kundalini yoga for the since 2005 under the guidance of Self Realized Indian Master "GuruMahan". He is teaching kundalini yoga since 2008 as part of a non-profit organization "Maha Shakthi Yogam Switzerland". He teaches Yoga/Meditation/Pranic Healing/Stress Relief courses in various places of Germany and Switzerland. He is the authorized kundalini yoga wisdom teacher from UPF(India) to give kundalini initiations (Shaktipat) with the Grace and Protection of his Master. All these events are conducted for non-profit purpose. Donations are collected on behalf of Swiss non-profit organization (Verein) "Maha Shakthi Yogam - Switzerland" **Eligibility:** Anyone can attend the session even if they don't have previous yoga/Meditation experiences. **Dress:** Wear a comfortable dress if possible yoga dress. We provide the yoga mat. **Please RSVP only you are really interested and coming ! Limited Seats !** **About Kundalini Shaktipat:** In every human being there is a source of natural energy that the yogis call the kundalini. In order to evolve in the yogic path, no matter what our path, the kundalini must be active. For most of us, the kundalini lies dormant at the bottom of the spine in the base chakra known as the Muladhar. When it awakens, it ascends through the chakras until it reaches the highest chakra, the Sahasrar. When that occurs, we merge with our True Self and attain SELF realization (our true nature). Shaktipat is the transfer of spiritual energy from the teacher to the student in order to awaken the kundalini. This process is compared to lighting one candle with another that is already lit and glowing. When the teacher is connected with the fully realized master and the energy is completely within his or her control, shaktipat initiation ensures that the student’s energy will remain active and stable. "Electricity is present everywhere, but there can be light only when the switch is turned on. Similarly the true master manifests the consciousness in the disciple through shaktipat.” **HAPPINESS is our TRUE Nature, which comes from within not from outside !**

Have you ever wanted to photograph people on the street—but didn’t dare to ask? You’re not alone. This meetup is a gentle, supportive space to explore street portrait photography by doing the one thing that feels hardest: approaching strangers. Together, we’ll walk, observe, and—when the moment feels right—ask people if we can take their portrait. It might feel uncomfortable at first. That’s okay. We’ll move at our own pace, encourage each other, and learn by doing. Along the way, you’ll discover: • How to approach people with confidence and respect • How to create a sense of trust in just a few seconds • How powerful a simple human connection can be Because sometimes, all it takes is a moment of courage to turn a stranger into something more—even if just for a photograph.

Welcome to the Competitive Play Session. This session takes place every Saturday from 10:45 to 12:15 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Players are accepted into the session based on skill suitability. This session is for experienced players looking for quality games. Play is focused on doubles with a competitive mindset and consistent rallies. You should be comfortable smashing, return smashes and keeping up a moderate tempo throughout the session. New players and those who are new to badminton are welcome to join the PM Session (Open Level Play). Payment can be made via TWINT after the session.

**[⚠️>>Ticket needed (click here)<<](https://eventfrog.ch/en/p/concerts/singer-songwriter/social-circle-x-sofar-sounds-speed-friending-live-music-7446627530260406071.html) or** **[www.social-circle.ch](http://www.social-circle.ch/)** **Social Circle x Sofar: Speed Friending & Live Music** Get your ticket here : [https://www.sofarsounds.com/events/64678](https://www.sofarsounds.com/events/64678) **Discount code if you come through Social Circle : SOCIALCIRCLE10-BB670** Ready to swap small talk for real connections? Join us for an evening that blends the thrill of meeting new people with the magic of a secret live show. Join our whatsapp group ((for live music lovers) for updates: [https://chat.whatsapp.com/FO7KwPbfft2A8miluRzH8p](https://chat.whatsapp.com/FO7KwPbfft2A8miluRzH8p) **The Experience** Forget the typical crowded gig where you only talk to the person you came with. We’ve teamed up with **Sofar** to create a night of discovery: * **Speed Friending:** Kick off the night with curated rounds of "speed friending" designed to help you meet like-minded music lovers and local creatives. * **Intimate Performances:** Once the ice is broken, settle in for a lineup of incredible artists in a unique, non-traditional venue. * **The Element of Surprise:** You won’t know exactly where you’re going or who you’re seeing until the very last minute. **Essential Info** * **When:** Friday, 10 April * **Doors:** 19:30 \| **Show:** 20:00 * **Location:** A secret space near **Hardbrücke**. * **The Reveal:** We’ll send the exact address to your inbox **36 hours** before the first note hits. **Note:** Spaces are limited to keep the vibe intimate. Grab your spot and get ready to experience the city’s music scene in an entirely new way. What’s your favorite thing about discovering new music—the atmosphere of the venue or the thrill of hearing a sound you’ve never heard before? ​📸 Photos and short videos may be taken during the event. Let the host know if you prefer not to be in them. Tickets are non refundable. Want more events like this? Join our community! [https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM](https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM)

Welcome to the Open Level Play Session. This session takes place every Saturday from 12:15 to 13:45 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Open to players of all skill levels. This session is for doubles with a relaxed and social focus. Ideal for casual play, improvement and meeting new players. Payment can be made via TWINT after the session.

Hares (someone to set the route) are Dr NOB and Saddam Come join us! In a semi-d erect democratic event, a vote was taken to move this hash out of the Easter week to a later time. The majority have spoken and the move to Sat 11 is now the order. Although the numerical sequence is not. So come for the beer and stay for the run or in whatever order you prefer. Bon temps rouler! A to A trail with lots of woods and some off road trails. **Where**: Niederweningen Dorf Station. Mobility car. Please see the photo below. Unless someone is driving and can donate the interior space for bags and beer. Look for English speakers wearing running gear. The meetup map function for location (bless it's heart) thinks that the Niederwenigen Bh is the same as Niederwenigen Dorf so if you find yourself at Neiderwenigen Bh please proceed several hundred meters east to Niederwenigen Dorf. See ya **When:** We'll meet at 13:50 to start at 14:00. There's a charge of CHF 5 for participating, which covers all you can drink beer/cider (and non-alcoholic alternatives) plus snacks afterwards. **All Welcome:** If you are new, curious, and want to get out of the house, stretch your legs, talk shit, enjoy a drink, and hopefully a laugh, then here's what you need to know: • We are a social running/walking group, physical fitness is not required, but a sense of humour is useful. • The aim is to find the '*Beer Stop*' at the end of the '*trail*' and have fun. • 'True Trail' is typically 4-7 km. bot on weekends it may be more. Some will go less (especially those walking or walk/running), and some over-achieving fast runners will go further. • The '*Hare*', which changes each event (along with location), cleverly lays the trail (typically with flour marks) so that everyone reaches the end at the same time. • There is always a place to deposit your bag and sometimes a place to change. • **After Trail**, we group for \~20-40 minutes for drinks, snacks, and some fun. This '*Circle*' is typically outside, so leave something warm in your bag in winter (and bring a flashlight when it's dark). If you don't want to stand around drinking afterwards, you can head home. We occasionally all go to a restaurant afterwards. **Why bother leaving your warm & dry sofa?** If you enjoy getting outside, being around people, and doing something a bit different, you will probably enjoy hashing. Exercise is important, and this is probably the least boring way to get it. 'Hashing' and the idea of some physical activity to work up a thirst, have been around for almost 90 years and there are groups (*Hashes*) in most major cities. Its humor and 'traditions' can be explored on the internet - **or you can just come along and find out.** *See you there.* We are of many nationalities, all ages, full of misfits and idiots (at least there is no one taking themselves seriously!) and always welcome newbies 'Virgin Hashers' and visitors from other groups. For more about Zürich Hash House Harriers, check out [www.zh3.ch](http://www.zh3.ch/) ( [http://www.zh3.ch/](http://www.zh3.ch/) )

Whether you've never done improv before, or you've done it for so long you knew Del Close on a personal level, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup** for some fun and games! The idea behind improv is to create entire scenes from scratch based on a suggestion from the audience. This can be done in game form, like *Whose Line Is It Anyway*, *ComedySportz*, or *Wild 'n Out*; it could also be done to tell stories, like *Middleditch and Schwartz*. Our meetup, which is central Ohio's longest running (and free!) weekly comedy event, brings the games (and occasionally different forms) for you to play in a safe, supportive, and compassionate environment. Not only is it a lot of fun, but you get to work on thinking faster on your feet, plus it's an excellent way to meet new people and make friendships that'll last a lifetime! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "Yes, And" that you'll have fun!

We will cover metadata-driven approach to building and operating data pipelines at scale on AWS. Discuss architecture, design trade-offs, and lessons learned from running a unified pipeline across multiple customers using configuration-driven workflows. **Presenter: Dilshad Nasirov** Seasoned Software Architect and cloud practitioner with 20+ years of experience building scalable systems and data platforms. Specializes in AWS, with deep expertise in data lakes, serverless architectures, and real-time data processing. Has led the design and delivery of enterprise-grade solutions across industries, helping organizations improve performance, reduce costs, and unlock data-driven insights. https://www.linkedin.com/in/dilshad-nasirov-4538431/ **CALL FOR SPEAKERS** Learn more: https://www.awscolumbus.com/get-involved/ **THANK YOU** *Leading EDJE* for hosting our meetup! Leading EDJE specializes in helping organizations innovate and solve complex problems. EDJE does this with their "A" player team of professionals using agile methodologies and SCRUM management techniques to give organizations a competitive advantage that sets them apart. Learn more at https://www.leadingedje.com/ **THANK YOU** *Amazon Web Services* for sponsoring pizza! Learn more at https://aws.amazon.com/. **DIRECTIONS** 6515 Longshore Loop, Suite 300 Dublin, OH 43017 (3rd floor) **FREE PARKING** at the Endres Garage across the street, 6540 Riverside Dr, Dublin, OH **Want to sponsor the pizza and/or bar tab for a future meetup?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

Come attend a free in-person seminar where you will find out why you: -Feel isolated -Can't express yourself openly -Get nervous or anxious in front of people -Run out of things to say or feel tongue-tied -Feel introverted -Don't feel comfortable in any social setting -Can't make more friends -Are shy and miss opportunities to connect in a meaningful way And we cover what you can do about any one, some or all of the above. This seminar is the weapon against loneliness, isolation and boredom, come join us! COME TO THIS SEMINAR AND LEARN THE SECRETS TODAY This seminar is brought to you by the Dianetics & Scientology Life Improvement Center. 1266 Dublin Road, Columbus, Ohio 43215

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. 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) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

It’s time to take control of your mental health. How do you get rid of stress, anxiety and uncertainty? These emotions are buried deep in your reactive mind. Find out what the reactive mind is, and in the process find yourself. Here is the secret of being positive and free: Thinking positively is not enough. You also have to get rid of the negative thinking. Your mind is like a garden. You can plant many beautiful flowers in it, but if you don't get rid of the weeds when you plant your flowers, the weeds will soon take over the whole garden. A positive thought is like a flower in your mental garden, and a negative thought is like a weed. You cannot expect to have a positive mindset if you continue to have negative thoughts dwelling and growing there. So, how do you get rid of the negative thoughts? That's what this Meetup is all about. Attend this local meeting and find out! The Meetup event will be led by a consultant who had helped many people live happier in life. 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 & Scientology life improvement center.

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!