Wiener Races

Speaker: **Hrvoje Novak, Anita Banjac,** **LARES - Laboratory for Renewable Energy Systems - FER** Title: **Python as a Research Workhorse: From Data to Optimal Control in Smart City Systems** Python is often seen as a glue language for automation and data analysis, but in research it becomes a powerful platform for modeling, optimization, and control. We show how it is used to build advanced decision-support and control algorithms for large-scale technical systems – starting from real-world measurements and nonlinear system models, we move through machine learning and optimization-based control, illustrating how these pieces come together in real smart city applications. We will take a behind-the-scenes look at how advanced control solutions are built, tested, and deployed in complex, real-world systems. \-\-\-\-\-\-\-\- We are in for a treat! Join us on **Tuesday** at MaMa to hear researchers from FER share their experiences from projects they did with industry partners solving real-world problems on a scale. Drinks and friendly discussion afterwards at [Old Pharmacy Pub](https://maps.app.goo.gl/AeaRdnBrMqPiRhvPA) 🍻🍷🥤☕️

**🎤 Introduction (10-30 minutes)** At the beginning of every meetup, we like to get to know each other better. Prepare to say a sentence or two about yourself. **🎤Main Event(1h 30min)** Topics to look forward to: * how Super ensures the quality of one of their most complex systems * enabling continuous deployment of customized solutions to new countries * minimizing the effort required to scale test coverage * using AI in QA processes that go far beyond generating tests with LLMs **⚡️ Lightning Talks (5 minutes each)** Apply at the event. **☕️ After the Meetup** We will continue the conversation with food and drinks. We are looking for hosts for meetups in 2026. If you would like to host Testival, let us know at [[testivaleu@gmail.com](mailto:testivaleu@gmail.com)]([mailto:testivaleu@gmail.com](http://mailto:testivaleu@gmail.com/)). **💰 Sponsor** This event is sponsored by [Super](https://www.super.xyz/).

🚀 **Poziv na 9. ZGBit: Otvoreni podaci za inkluzivniji Zagreb** Dragi svi, pozivamo vas na **9\. ZGBit**, u organizaciji Gradskog ureda za digitalizaciju, nove tehnologije i tehničke poslove Grada Zagreba, koje ovoga puta posvećujemo temi: 👉 **Kako otvoreni podaci mogu unaprijediti kvalitetu života osoba s invaliditetom** U suradnji s **Gradskim uredom za socijalnu zaštitu, zdravstvo, branitelje i osobe s invaliditetom**, istražit ćemo konkretne načine na koje tehnologija i otvoreni podaci mogu doprinijeti inkluzivnijem gradu. 🔍 **Što vas očekuje?** * inspirativni primjeri iz europskih gradova koji su već napravili značajne iskorake * pregled mogućnosti koje otvoreni podaci nude u području socijalnih usluga i pristupačnosti * otvorena rasprava između korisnika, stručnjaka i donositelja odluka * kratki, praktični rad u grupama gdje će IT zajednica zajedno s korisnicima pokušati osmisliti ideje za aplikacije ili druga digitalna rješenja 🤝 Događaj je namijenjen: * osobama s invaliditetom * predstavnicima institucija i lokalne uprave * članovima IT i open data zajednice * svima zainteresiranima za društveno korisne tehnološke inovacije * članovima istraživačke zajednice koji se bave temama vezanima uz invaliditet ⏱️ Trajanje: 2,5 sata 📍 Lokacija: Zagrebački energetski centar (ZEC) Cilj nam je zajedno osmisliti konkretne ideje i potaknuti suradnju između grada, zajednice i tehnološkog sektora. 📢 Prijave će biti dostupne ovdje, putem Meetup platforme ili na meetup@zagreb.hr – pratite nas i osigurajte svoje mjesto! Vidimo se na 9. ZGBit-u!

Speaker: **Hrvoje Novak, Anita Banjac,** **LARES - Laboratory for Renewable Energy Systems - FER** Title: **Python as a Research Workhorse: From Data to Optimal Control in Smart City Systems** Python is often seen as a glue language for automation and data analysis, but in research it becomes a powerful platform for modeling, optimization, and control. We show how it is used to build advanced decision-support and control algorithms for large-scale technical systems – starting from real-world measurements and nonlinear system models, we move through machine learning and optimization-based control, illustrating how these pieces come together in real smart city applications. We will take a behind-the-scenes look at how advanced control solutions are built, tested, and deployed in complex, real-world systems. \-\-\-\-\-\-\-\- We are in for a treat! Join us on **Tuesday** at MaMa to hear researchers from FER share their experiences from projects they did with industry partners solving real-world problems on a scale. Drinks and friendly discussion afterwards at [Old Pharmacy Pub](https://maps.app.goo.gl/AeaRdnBrMqPiRhvPA) 🍻🍷🥤☕️

Pridruži se kolegama iz Fonoe, Shopify-a, Intercoma & Mindsmithsa na prvom Engineering × Product Talks, community večeri za senior inženjere, engineering managere i product lidere koji žele razgovarati o stvarnim izazovima izgradnje i skaliranja složenih softverskih sustava u eri AI-ja. Fokus večeri je na konkretnim odlukama, trade-offovima i iskustvima iz prakse, iz perspektive ljudi koji svakodnevno grade i vode sustave koji moraju raditi pouzdano na globalnoj razini. Fonoa će podijeliti kako pristupa izgradnji platforme za globalnu poreznu usklađenost u okruženju u kojem se regulativa stalno mijenja, a točnost, pouzdanost i auditabilnost nisu opcija, nego nužnost, te gdje AI sve više igra ulogu u povećanju efikasnosti i skalabilnosti bez kompromisa na kvaliteti. **Riječ je o problemu koji uključuje:** * kompleksnu logiku kroz više jurisdikcija * stroge zahtjeve za točnost i auditabilnost * skaliranje infrastrukture i integracija * balansiranje brzine razvoja, pouzdanosti i kvalitete podataka Drugim riječima, o sustavu u kojem je točnost zapravo proizvodna značajka. **O čemu ćemo razgovarati?** * kako donositi tehničke i produktne odluke pod pritiskom kompleksnosti * kako balansirati brzinu razvoja, pouzdanost i točnost sustava * kako graditi engineering timove s visokim ownershipom i jasnim standardima * kako product i engineering surađuju kada je sustav globalan i reguliran * kako AI uvodi nove arhitekturne i produktne trade-offove u modernim softverskim sustavima **Program** **Uvodna Prezentacija** * [Davor Tremac](https://www.linkedin.com/in/davor-tremac-662144a/) – CEO (Fonoa): What we build & why it matters Uvod u problem koji Fonoa rješava i zašto je izgradnja platforme za globalnu poreznu usklađenost tehnički i organizacijski izazov. **Fireside chat** * [Pablo Carranza](https://www.linkedin.com/in/pablocarranza/) – CTO (Fonoa) * [Filip Šturman](https://www.linkedin.com/in/filipsturman/) – COO (Fonoa) Moderator: [Ante Sladojević](https://www.linkedin.com/in/antesladojevic/) – Chovik, Founder Razgovor o skaliranju organizacije, donošenju tehničkih i produktnih odluka te izgradnji sustava u kojem je točnost ključna funkcionalnost, uz sve veću ulogu AI-ja u unapređenju procesa, donošenju odluka i razvoju proizvoda. **Panel diskusija - Product & Engineering: aktualni izazovi, organizacijski modeli i kultura ownershipa** **Panelisti**: * [Majana Havranek](https://www.linkedin.com/in/majanahavranek/) – Head of Product, Mindsmiths * [Igor Belša](https://www.linkedin.com/in/igorbelsa/) – Development Manager, Shopify * [Mario Kostelac](https://www.linkedin.com/in/mariokostelac/) – Principal Machine Learning Engineer, Intercom Moderator: [Antonio Krističević](https://www.linkedin.com/in/antoniokristicevic/) – Engineering Manager, Fonoa Kako danas izgledaju odnosi između Product i Engineering timova u modernim tehnološkim kompanijama? Kako se donose odluke, kako se dijeli odgovornost i koji organizacijski modeli najbolje funkcioniraju u praksi, uz sve veći utjecaj AI-ja? Na ovom panelu razgovaramo o stvarnim izazovima s kojima se susreću product i engineering timovi: od definiranja prioriteta i ownershipa, preko suradnje između funkcija, do izgradnje kulture koja omogućuje timovima da brzo donose odluke i isporučuju vrijednost korisnicima. Panel okuplja iskusne lidere iz različitih međunarodnih tech kompanija koji će podijeliti svoja iskustva o tome kako njihove organizacije strukturiraju timove, kako balansiraju product i engineering perspektive te kako grade kulturu odgovornosti i povjerenja. **AMA – Ask Me Anything** Direktno pitaj CEO-a, CTO-a, COO-a i paneliste sve što te zanima, bez filtera! **Nakon programa** Od 20:00 do 22:00 slijedi networking uz hranu i piće - prilika za nastavak razgovora, razmjenu iskustava i neformalne diskusije sa senior kolegama iz engineering i product zajednice. Sudionici će imati mogućnost i neformalnih razgovora s C-level timom Fonoe u opuštenijem formatu. **Kome je događaj namijenjen?** * Senior Software Engineerima * Staff+ Engineerima * Engineering Managerima i Tech Leadovima * Product Managerima i Product Leaderima Cilj je okupiti ljude koji žele razgovarati o sustavima, odlukama i leadershipu, a ne o buzzwordima. **Što možete očekivati?** * konkretne uvide iz prakse, bez marketing filtera * otvorenu diskusiju s C-level timom Fonoe * priliku za postavljanje pitanja i razmjenu iskustava * kvalitetan networking sa senior kolegama iz engineering i product zajednice Mjesta su ograničena – registrirajte se na vrijeme!

\| Neki istraživački projekti trebaju prenijeti ogromne količine podataka\. Korištenje stolnog računala i uobičajene mreže možda nije najbolja opcija za postizanje optimalnih performansi\. Postavljanje DTN čvora nije uvijek jednostavno: postoji više vrsta softvera\, određene parametre na poslužiteljima treba prilagoditi\, a udaljenosti dodatno smanjuju performanse TCP‑a\. Projekt GN4‑3, u sklopu aktivnosti WP6 T2, proveo je niz testova koristeći GÉANT Testbed Service (GTS). Rezultati su objavljeni u matrici, a dokumentacija i skripte za postavljanje čvorova u dockeriziranom okruženju dostupni su na DTN wiki stranici (https://wiki.geant.org/display/DTN). ## About Network engineer (CCNA, CCNP). My research interests are in the field of secure network communication, implementation of new network protocols and WANs technology (L2 MPLS, multicast, GMPLS, SDN...).

Boje nisu samo ono što vidimo – one su energija na različitim frekvencijama. Svaka boja donosi posebne dobrobiti tijelu i umu, održava ravnotežu, jasnoću i unutarnji sklad. Probudite svoju kreativnost, aktivirajte svoju unutarnju snagu i unesite više radosti i uspjeha u svoj život. Svojim dolaskom i donacijom izravno podržavate rad našeg Kluba. Hvala :)

**Beer, Pizza and IoT Meetup (Siemens Digital Twins Special)** AGENDA 18:30-19:00: Pizza and Beer (other drinks available) 19:00-20:00: Talk by Kazeem.Oladipupo and Ege Korkan on "Why simplifying IoT interoperability makes connected Digital Twins a reality?” 20:00-21:00: Networking with potentially more beer Look forward to seeing you all there. Due to limited capacity, we reserve the right to restrict admission. Pizza, beer and seats first come first serve! :)

Let's check out the Upcoming Horse Race Event at Worthington Hills Country Club with the Dublin-Rotary Worthington Club! Food will be served along with a cash bar! Cost is only $40.00 per Ticket plus a small fee: [Night at the Races - Dublin-Worthington Rotary - 2026 Tickets, Wednesday, Apr 22 from 6 pm to 9 pm | Eventbrite](https://www.eventbrite.com/e/night-at-the-races-dublin-worthington-rotary-2026-tickets-1980210210044?aff=ebdssbdestsearch) Purchase your tickets ASAP because they will stop selling them on April 7th. I haven't been to a Horse Race Event in awhile and feel that this will be an extremely fun and exciting opportunity! Horse racing is a thrilling sport. Worthington Hills Country Club is a Beautiful Club in Worthington, Ohio with Captivating Scenery and Prestigious Charm. Parking is FREE and widely available in the Large Parking Lot in front of Worthington Hills Country Club. We will meet at 6:00 PM the Main Front Entrance at Worthington Hills Country Club. Thanks and hope to see you come out!

Count down to Derby! They have a fun filled day planned at [Crooked Can](https://crookedcanohio.com/). This event is so well-run and festive! 6pm - Hat Parade Competition 6:50pm - Kentucky Derby Race 7-10pm - Live Music Feel free to come by earlier with your kids and grandkids for family fun til 4pm. Then some **Fun n Games**: 4-6pm Adult Horse Race Game & Beer Puppeteers. **Family Time**: 1pm Kids Horse Craft; 2-4pm Wiener Dog Races (Excited to be having wiener dog races again. This is always a lot of fun for all. We will be having several heats and then a final competition. Must sign up ahead of time by emailing megan@crookedcanohio.com) **Setting**: The Center Street Market is a locally owned and operated community market located in historic Old Hilliard that is open 7 days a week. Local products with multiple vendors that offer local food, natural, organic food, desserts, pastries, coffee and unique shopping all inside of one building. Gathering tables are indoors and outside on their huge patio! Anchored to the market is the Crooked Can Brewing Company, an on-site hand-crafted beer (plus cocktails, ciders, wine).

Dinner and dancing

**💖 Speed Dating on Zoom – Personality Matched for Columbus Locals** For this online speed dating version, the host and the people in the room matter as much as the agenda. The experience is designed to feel guided, welcoming, and social. Ditch the apps. Meet Columbus singles face-to-face on Zoom tonight. Quick, hosted rounds on Zoom with Columbus singles paired to your age group and personality. No awkward pauses — just natural conversation. **Register under your age group:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Columbus&groupurlname=club-leading-local-singles-speed-dating&ar=18-32&face_v=2.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Columbus&groupurlname=club-leading-local-singles-speed-dating&ar=30-46&face_v=2.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Columbus&groupurlname=club-leading-local-singles-speed-dating&ar=40-58&face_v=2.0) **⚠️ Heads up — RSVPing here isn't enough.** Register through your age group link below and complete the quiz. Capacity is limited. --- 🎯 **Especially useful for:** - Anyone curious about speed dating in a relaxed setting - ⚡ Columbus locals after personality-matched dates - People fed up with swiping who want actual conversation 📌 **What to know** - **Format:** Zoom video session – short timed rounds - **Location:** From home – all you need is Wi-Fi and a webcam - **Host:** Live host handling rounds and introductions 🔄 **What to expect** 1. **Pick your age group** – Register through your link above. 2. **Take the personality quiz** – We use it to pair you with compatible Columbus singles. 3. **Hop on Zoom** – Join the call and your host will walk you through it. 4. **Meet your matches** – Cycle through short chats with compatible Columbus singles. 💡 **Tip:** Check your Zoom setup and pick a quiet, well-lit spot ahead of time. ⭐ *"10/10. The host was fantastic and I actually had fun on the dates."* – Columbus first-timer --- ✨ Register, take the quiz, and connect with Columbus locals tonight. ✨ ✨ Short-form version for faster scanning. Everything important, without the extra padding. 🤝 **Community angle** - The atmosphere is guided, social, and easy to join - The community matters as much as the session itself - Repeat attendees help create familiarity and momentum The long-term goal is a room people want to come back to, not a one-off event people forget about.

**🫶 Detroit Speed Dating – Personality Matched & Hosted on Zoom** For this online speed dating version, the host and the people in the room matter as much as the agenda. The experience is designed to feel guided, welcoming, and social. A straightforward, fun way to meet local singles without stepping out. Each round is a brief one-on-one Zoom chat with a Detroit local paired by age and personality. A host keeps the pace comfortable. **Register under your age group:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Detroit&groupurlname=downtown-local-singles-mixer-and-mingle&ar=18-32&face_v=3.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Detroit&groupurlname=downtown-local-singles-mixer-and-mingle&ar=30-46&face_v=3.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Detroit&groupurlname=downtown-local-singles-mixer-and-mingle&ar=40-58&face_v=3.0) **⚠️ Important: RSVP ≠ registration.** To join, pick your age group below, sign up, and finish the personality quiz. Spots are limited. --- 🎯 **Great fit for:** - First-timers new to speed dating - 🚀 People fed up with swiping who want actual conversation - 🎯 Busy professionals who don't want to waste evenings 🧭 **How the session runs** 1. **Pick your age group** – Register through your link above. 2. **Fill in the matching quiz** – Helps us find your ideal matches for the evening. 3. **Join on Zoom** – Click the link, jump on, and the host handles the rest. 4. **Speed date** – One-on-one rounds with personality-matched Detroit locals. **At a glance** - **Format:** Virtual on Zoom – hosted and well-structured - **Location:** Wherever you're comfortable – no venue, no travel - **Host:** Experienced host steering the session **Frequently Asked Questions** **Do I need experience?** Not at all. The host walks you through everything. **How long are the chats?** **What's the personality quiz for?** **Is my info private?** --- ✨ Register, take the quiz, and connect with Detroit locals tonight. 💘 ✨ Compressed version with the essentials only. Built for clarity over length. 🤝 **Community angle** - The atmosphere is guided, social, and easy to join - The structure is designed to help people settle in quickly - Repeat attendees help create familiarity and momentum It is meant to feel like the start of ongoing relationships, not just a single session on the calendar.