Data Journalism

DubJUG 265, our live in-person event, presents Professor Ž (aka Željko Kozina!) Hear why Netflix dumped REST in favour of GraphQL and explore how memory management improves performance, the different parts of Java memory and the various garbage collectors. OFFICIAL BOOKING >>>>> https://ti.to/dublin-java-user-group/265-zeljko-kozina ## **Talk 1:** Netflix dropped REST, but should you? Last year, Netflix announced that it was dropping REST completely in favour of GraphQL. It is undoubtedly one of the popular kids on the Development playground right now. GraphQL is a new way to build APIs, one that's easier, faster, better, and more flexible than the old RESTful API system, or at least that's the promise. In this session, a REST developers' Assessment of Spring GraphQL, Željko will cover the basics of Spring GraphQL, explore its strengths and weaknesses, and determine whether it is a better option for your company than a conventional REST API. ## **Talk 2:** Trash Talk - Optimising Java Garbage Collection Understanding how Java organises memory is important for every Java professional, but this particular topic is a common knowledge gap for many software professionals. With the help of Željko, this talk explores how memory management can help you improve performance effectively, helping you understand the different parts of Java memory and the various garbage collectors so you can select your preferred one.

You'll meet your local guide at the meeting point a little before 11AM and show your booking. Then we'll commence a fascinating walking tour through the streets, sights, and sounds of Dublin old and new. You'll get an unrivalled insight to the history and culture that has shaped the capital you see today - warts and all, discover the lesser-known, intriguing oddities of our city, and get unique insider tips for the rest of your stay. Sites and topics covered include: Dublin Castle, Christchurch, Viking & Medieval Dublin, Temple Bar, fables, folklore and mythology, Trinity College, Stephen's Green, risings and rebellions, writers & rogues and so, so much more... please remember, places are limited and you must book your spot via: https://www.generationtours.com/dublin See you soon!

**IMPORTANT UPDATE:** Due to a fire incident at Kyodai Izakaya, It's been **temporarily closed**. Let's meet at J.R Mahon's on 1-2, Burgh Quay, Dublin 2 (across the river from Izakaya Kyodai). We still need a venue for presentations. If anyone can help, please get in touch (e.g. via Discord). The minimum requirement is a room with a screen, or projector. We have a Discord server, which you're welcome to join: https://discord.gg/nCBrCXB6 Clojure Ireland is sponsored by [Taxamo - a Vertex Company](https://twitter.com/taxamo).

Ever found yourself wrestling with Power BI limitations or implementing complex workarounds for what should be simple user requests? Enter Streamlit – the open source Python package that's transforming how we deliver value from data. In this session, you'll discover how Streamlit enables you to build beautiful, interactive data applications in minutes, not months, all without front-end development expertise. We'll showcase real-world applications we've built for clients that let users manipulate model parameters and instantly visualise impacts, delivering a level of engagement traditional BI tools simply can't match. By the end of this talk, you'll have everything you need to create your first Streamlit app, along with practical guidance for taking your prototypes from desktop to Azure deployment. See first hand how this transformative technology is helping organisations move users from passive dashboard consumers to active participants in the data experience. **🎯 Target Audience** * Data analysts and BI developers frustrated with traditional tools * Python developers and data scientists building interactive apps * Consultants delivering data solutions to clients * Organisations seeking better data engagement and insights * IT professionals deploying apps (e.g. to Azure) **📍 Event Details** **Location:** The Gamer Club, Glasgow **Venue Info:** A purpose-built basement venue for tech meetups — includes console lounge, arcade, kitchen/bar, PCs, projector, and gigabit internet. 💡 BYOB welcome \| Free tea & coffee available **Directions:** [https://www.thegamerclub.co.uk/gettinghere](https://www.thegamerclub.co.uk/gettinghere) **Date:** 2026-02-04 **Time:** 18:30 **Timezone:** Europe/London **🎥 Streaming** We aim to stream this talk live here: 👉 [Watch on YouTube](https://www.youtube.com/@PythonScotland/streams) **📬 Contact** If you have questions, get in touch: 📧 organisers@python.scot **💬 Matrix Chat** Matrix is an open, secure chat platform for communities and collaboration. Join our Python Glasgow matrix room to chat with organisers and attendees: [https://matrix.to/#/#python:glasgow.social](https://matrix.to/#/#python:glasgow.social)

📚 **AI Ebook Empire – Write, Publish, Earn** Use AI to write and publish ebooks that sell while you sleep. ⚠️ Register below to confirm your place — RSVP is not your ticket in. ### [🔗 SECURE YOUR SPOT](https://remoteready.io/product/AIEbookBusiness?city=Dublin&groupurlname=circle-of-passive-income-strategy-seekers&startgmtdatetime=2026-05-06T17:00:00Z) --- What's covered: - Write full ebooks with AI in hours, not weeks - Publish across platforms for passive income - Scale to multiple titles without burning out *One system. Recurring income.* ✍️

This beautiful and historic building has 365 rooms and is officially the largest Orange Hall in the world. It contains two museums: covering Orangeism and the British forces. It's approx three quarters of a mile from Lurgan station and looks out on some 200 acres of parkland. The tour incl access to the museums and costs 12 pounds p.p. for over 66s and 15 pounds for under 66s. The dining facilities are excellent, main courses start around 16 pounds. We'll meet at Connolly station in time for the 9.50 Enterprise train. It's best to get a Dublin to Belfast return ticket but we'll alight at Portadown to get a local train for Lurgan. Your Dublin/ Belfast ticket covers you for travel between Portadown and Lurgan. If you want to go straight home after seeing the museums you'll make the 16.00 hrs train from Lurgan which connects at Portadown with the Enterprise, at 16.30, to arrive at Connolly Station at 18.13 hrs. If you want to walk around the grounds with me we'll make the 17.30 train at Portadown, arr Connolly around 19.13 hrs. As I'm booking lunch places in Brownlow and agreeing numbers with the owners please RSVP only if you're definitely coming. Payments for the tour and meal can be made by debit card or Sterling on the day. Please do not offer payment in euros.

📊 **Profit from Predictions – Polymarket Strategy** Learn to read and win prediction markets consistently. Data-driven and repeatable. ⚠️ RSVP here AND register via the link below to lock in your seat. ### [🔗 REGISTER NOW](https://remoteready.io/product/Polymarket?city=Dublin&groupurlname=circle-of-passive-income-strategy-seekers&startgmtdatetime=2026-05-06T17:00:00Z) --- What you'll learn: - Polymarket strategies that generate consistent daily profit - How to read market signals others miss - A systematic approach to forecasting outcomes *Turn your predictions into income.* 📈

Hi all, Our first Meetup will be a casual get-together for anyone interested in Time Series Analytics, Forecasting, and Data Analytics. The idea is simple: meet new people, share your background, talk about your work/study experience, exchange ideas, and enjoy a coffee or a beer together in a relaxed atmosphere. We’ll meet at the bar on the ground floor of the Camden Court Hotel Camden Street Lower, Saint Kevin's, Dublin, D02 W086 www.camdencourthotel.com/en/ I’ll be there, so feel free to join! See you soon! Simone

Adult Bachata and Salsa dance classes with practice social at Coolock Ardlea Scout Den Coolock Village. This is a mirror studio located upstairs from the hall with nice wooden floors. This is a weekly Thursday event. Come down, learn and have fun! Men and Women are welcome. Free taster for first timers and discount for students, request via dm. Beginners cost 10 euro for all beginner classes and practice.

**Hi Everyone Rumberos/as !!!** Sundays in Dublin just got a whole upgrade 🔥💃🕺🔥 Salsa & bachata classes right in the city center – get ready to unleash your inner fire 💃🕺 **💃 Every Sundays Nights Just Got Hotter! 🕺** Join us every Sunday for an unforgettable night of salsa and bachata classes followed by the best Latin party in the heart of Dublin, all in one place! #QuedadasSalseras 👀 **💥Quedadas Salseras💃🕺** **‼️Dublin City Center‼️** **📍🪩Lost Lane 🪩** 1-2 Adam Court, Grafton Street D2 [https://g.co/kgs/j7VBCsU](https://g.co/kgs/j7VBCsU "https://g.co/kgs/j7VBCsU") 🗓 **Sunday 10 May - 2 ROOMS** **🗓Event Lineup:** **🕖 17:00 Salsa Class \| 2 Levels** **Beginners & Intermediate** **🕖 18:00 Bachata Class \| 2 Levels** **Beginners & Intermediate** **🪩Social Dance 🪩** **🕖 19:00 - 00:00** **Room Salsa** **Room Bachata** **️ 🤫After social - Disco Dj** **⏰12:00 am to 01:30 am** **TappedDublin - Lost Lane** 🫵🏻 Don’t miss out? **Pass Options:💰** **✅2 Classes + Party + Drink : €20** **✅2 Class + Party : €15** **✅Only Party + Drink : €15** **✅Extra Token Drink : €5 🚪** **💳You can pay by card, cash, revolut,🚪or eventbrite** 🎟️[https://goo.su/fjXus](https://goo.su/fjXus "https://goo.su/fjXus") More info 👉🏼 [https://www.instagram.com/quedadassalseras/](https://www.instagram.com/quedadassalseras/ "https://www.instagram.com/quedadassalseras/")

Welcome to a vibrant community created for men and women who are ready to connect, explore, and thrive together as friends! This group is all about bringing solo people together in a fun and welcoming space. Where new friendships are formed and fresh experiences await. **Get your ticket here on Eventbrite link:** https://www.eventbrite.ie/e/solo-meets-social-make-new-friends-cocktail-masterclass-at-nyx-tickets-1988123067614?aff=oddtdtcreator **Important information:** Limited spots. Strict ticket event. Tickets will be scanned at check in. **Do not show up without an Eventbrite ticket.** Please bring ID in case the doorman ask you for proof of age. Minimum age to attend is 23. RSVPs are not a true representation of the people attending. You can get a ticket whether you're on the RSVP or Waitlist. 1st come, 1st serve. By joining this event, you accept our T&Cs, check them out on our website: Yinyangevents.ie Follow us on Insta: https://www.instagram.com/yinyangevents.ie/

💌 **Online Speed Dating for Dublin Singles — Real Connections, Long-Term Thinking** This is for singles who are done with apps that go nowhere. Done with casual. Ready for a genuine conversation with someone who might actually matter. Live on Zoom. Personality matched. Built for people who want something that lasts. **Choose your age group to register:** - Ages 18-32: [Register Here](https://tempodating.com/product?productId=470.0&productType=onlineSpeedDating&city=Dublin&groupurlname=meaningful-conversations-during-our-weekend-brunches&ar=18-32&face_v=2.0) - Ages 30-46: [Register Here](https://tempodating.com/product?productId=470.0&productType=onlineSpeedDating&city=Dublin&groupurlname=meaningful-conversations-during-our-weekend-brunches&ar=30-46&face_v=2.0) - Ages 40-58: [Register Here](https://tempodating.com/product?productId=470.0&productType=onlineSpeedDating&city=Dublin&groupurlname=meaningful-conversations-during-our-weekend-brunches&ar=40-58&face_v=2.0) - Ages 55+: [Register Here](https://tempodating.com/product?productId=470.0&productType=onlineSpeedDating&city=Dublin&groupurlname=meaningful-conversations-during-our-weekend-brunches&ar=55+&face_v=2.0) 🌿 RSVP here alone does not hold your place. Complete your registration through the link above and finish the short personality quiz. --- **How it works:** 1. Register via your age group link and complete the personality quiz. 2. Join Zoom at the event time — works on any device, no downloads needed. 3. Meet Dublin singles in short one-on-one rounds matched by age and personality. 4. Mutual matches are shared after — take it forward at your own pace. 🤍 Spots are kept small to keep things personal. If you are serious about finding the right person, this is where it starts.

Vision Language Models (VLMs) such as LLaVA, Qwen-VL, Nemotron VL and GPT-4o have unlocked a new era in AI where language and sight converge into a single reasoning system. These models can describe images, answer visual questions, read documents, and interpret charts — but their true power emerges when you fine-tune them on domain-specific data, teaching them to see and reason about the visual world that matters to you. In this hands-on session, we walk through the full fine-tuning pipeline for vision-language models. We begin by understanding how these architectures work — how a visual encoder like CLIP or SigLIP is coupled with a large language model through a projection layer, and how the interplay between image tokens and text tokens enables multimodal reasoning. We then move into the practical side: preparing image-text datasets, choosing the right fine-tuning strategy (full fine-tuning vs. LoRA vs. QLoRA), configuring training with frameworks like Hugging Face Transformers and PEFT, and evaluating results on real-world benchmarks. We will also discuss when and why fine-tuning a VLM is the right approach compared to alternatives like prompt engineering or retrieval-augmented generation, and how to avoid common pitfalls such as catastrophic forgetting, overfitting on small visual datasets, and misaligned image-text pairs. Bring your laptop, your curiosity, and — if you have one — a dataset you would like to try. By the end of the session you will have a clear, reproducible workflow for adapting any open-source vision-language model to a custom task. \*\*📅 Open to all levels — no prerequisites, just curiosity.\*\*

Practical AI for Power BI Developers A year ago, “agentic AI” was mostly hype for Power BI teams. Today, it deserves your undivided attention. For Power BI pros, there is now a real opportunity to reduce repetitive development work, accelerate delivery, and help developers do more, but only when strong DataOps practices are in place to make AI workflows effective. This session is a no-nonsense introduction to effective AI patterns for Power BI and Fabric development. Along the way, we will make sense of the growing pile of terminology, including skills, plugins, hooks, and MCP. You will see examples of how modern AI tooling can help with development tasks across Power BI and Fabric, along with the prerequisites, guardrails, and DataOps principles needed to use it responsibly. Whether you're burned out on AI hype or already using Copilot CLI daily, this session will show you the foundations that are finally making AI-assisted development genuinely useful.

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

**We'll have two meetings covering AI - this second one is for Positron** We will review which AI features are linked in for Positron, and how to use them. **Source documents:** the repository is public, at: https://github.com/BarryDeCicco/AARUG_2026_04_09_AI_In_Positron You can download documents, or clone/fork the repository. **Location:** The meetup will be at SPARK's ([https://annarborusa.org/](https://annarborusa.org/)) Ann Arbor site: [SPARK HQ (Ann Arbor)](https://urldefense.com/v3/__https://www.google.com/maps/place/Ann*Arbor*SPARK*Headquarters/@42.2792515,-83.7447708,17z/data=!3m1!4b1!4m5!3m4!1s0x883cae3effe193cb:0x5296a53db2a282bf!8m2!3d42.2792515!4d-83.7447708?hl=en-US__;Kysr!!HXCxUKc!3EEdBNXRJKknP6LCGkZetSuEsdtChFojQnOVitFUC5C0fyilqXEbiMstT9ajBR3Cw-55qoFkrElCjQvjMdTxUw$). There is on street parking, and parking at local structures. **This will be a hybrid meeting - the Zoom session starts at 6:30 PM.** **Time:** The doors will be open at 6:00, with pizza and beverages provided. We will have a meet-and-greet-and-pizza session, and then at 6:30 we'll have a presentation. **Zoom information:** https://us06web.zoom.us/j/6658850479?pwd=Snd1UmZTT3pjZktENlczUXh4SERwUT09&omn=89012971377 Passcode: 940392 **If you can't get in, please call me at: 734 223-3307** **The github repository is at: https://github.com/BarryDeCicco/AARUG_2026_04_09_AI_In_Positron**

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

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 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 speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

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!