Data Analytics

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.

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)

**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).

Yoga Classes with Hannah Fitzpatrick on Wednesday evenings at Anam Ashram, Tallaght, 7pm-8:8.30pm. This is a moderate paced class where we will stretch and strengthen our bodies in various ways, but we will also keep a keen awareness on our breath and body-sensation throughout. We'll aim to increase our connection and our compassion to ourselves, while also giving our bodies the refreshing and rejuvenating workout it adores and requires! We will end with a guided deep relaxation. Contact Hannah for more details and for booking on 083-4863900

💻 **Build Your AI Agent – OpenClaw Masterclass** Create a working AI agent from your browser in one session. No prior coding needed. ⚠️ RSVP alone won't hold your spot — complete registration below to confirm. ### [🔗 CLAIM YOUR PLACE](https://remoteready.io/product/OpenClawMasterclass?city=Dublin&groupurlname=circle-of-passive-income-strategy-seekers&startgmtdatetime=2026-05-06T17:00:00Z) --- What you get: - A real, working AI agent by the end of the session - Practical skills to automate tasks that eat your time - A browser-based setup you can use immediately *Don't just use AI. Build it.* 🤖

📊 **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.* 📈

Congratulations to members of our Group who raced last weekend, with many out on the streets of Da Nordside taking part in the Dublin City Half Marathon - Great running everyone. Well, this Wednesday, back on the Southside, we will be running to **Birchalls in Ranelagh** for our weekly exercise - The exercise that include a full legs and arm workout, as you get to run (legs), and enjoy a drink (arms) afterwards, not to mention meeting friends, old and new, afterwards. .. For newcomers, our Group Runs are great fun, safe for all, and once the run is complete, we can share a beer, have a good chat, make new friends, and look forward to the following week. The route map is here - https://www.mappedometer.com/?maproute=966581 Regards, Liam

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.

Newly started IG: https://www.instagram.com/letsgetsocialdublin/ Every event is **5 euros** to the host, you can pay by using Revolut or Cash. This helps me maintains the group as this takes a lot of time and effort. Get ready to reach new heights and forge lasting connections doing Indoor Bouldering Adventure this Sunday **at 14:30!** Whether you're a seasoned climber or brand new to the sport, this event is the perfect opportunity to challenge yourself, have fun, and meet fellow enthusiasts in a supportive and social setting. Located at the Bloc Climbing Gym in Ballymount, indoor bouldering social event is suitable for climbers of all levels. No climbing experience? No problem! Our friendly group will provide guidance, tips, and encouragement every step of the way. Whether you're learning or honing your skills, you'll find plenty of support and encouragement from your fellow climbers. After our exhilarating climb, we'll gather for some well-deserved refreshments and socializing, where you can swap climbing stories, share tips, and make new friends with fellow adventure-seekers. So lace up your climbing shoes, chalk up your hands, and get ready for an afternoon of adrenaline-pumping fun and friendship at our Indoor Bouldering Adventure this Sunday! Let's climb, connect, and conquer together. See you there! 🧗‍♀️🤝🧗‍♂️

**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/")

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.\*\*

We at Freesalsa Ireland believe in growing the community, something our friend DJ Leo also believes in. Therefore, we are delighted to promote his weekly practice here on our Meetup for those of you looking to spend their Sunday in the best way. There will be a 60-minute lesson before social with the award-winning DJ Leo until 17.00. Prices stand at a very affordable: €5: Only Social or Only Class €5: for beginners class and social €7: for intermediate/improvers class and social. *Please note, class capacity is limited, so arrive early to be sure of a spot; first come, first serve. This is why we dance. To spend time with folks and have new experiences. You won't find a better group to do that with than this. See you all then.

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/

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

**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 us for a practical, beginner-friendly guide to choosing the right large language model. We’ll compare major models like ChatGPT, Claude, Gemini, and Llama, talk about when to use hosted APIs versus local models, and break down the tradeoffs around cost, speed, quality, privacy, context windows, coding ability, and reliability. You’ll leave with a clearer mental model for picking an LLM based on your actual use case instead of hype, benchmarks, or brand names. No deep AI background required. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

**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

**Abstract:** This is a practical playbook for building a production-grade data lakehouse. It walks through foundational principles — naming conventions, least-privilege access, automated CI/CD testing — before diving into medallion architecture. Furthermore, metadata-driven design patterns show how configuration tables and dynamic notebook orchestration eliminates hard-coded pipelines. The deck covers star schema modeling, guidance on choosing between Spark, Pandas, and SQL, and data quality enforcement using DQX with YAML data contracts. Finally, we dive into security best practices and performance optimizations. **Host:** Justin Shea, Mehdi Jeddi, Erik Pak, and Sou-Cheng Choi **Talk Format:** This is a hybrid event. To attend online, join us on Zoom here at 6pm: https://iit-edu.zoom.us/j/89379230295?pwd=NdETyE5sdYuSrvsrBZXSBFkUESBVkg.1 Meeting ID: 893 7923 0295 Passcode: 5t5WYn **Sponsor:** Adyen, UIC College of Business, and PyData Chicago co-host this event. UIC will provide the meeting site. Adyen will sponsor pizza and soft drinks for the onsite participants. **Address:** University of Illinois - Chicago, Douglass Hall, Room 220, 705 S Morgan St, Chicago, IL 60607 **Logistics:** “UIC Douglass Hall” is recognized on Google Maps, which can guide you through campus. Once you arrive, proceed to the second floor, room number 220

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.