GTUG

**First meetup of the Columbus AI Engineering group.** We’ll kick things off with a practical, beginner-friendly discussion on: **How LLMs like ChatGPT actually work — and how to build real applications with them.** We’ll cover: * what’s actually happening under the hood (at a high level) * why LLMs behave the way they do (hallucinations, prompt sensitivity, etc.) * how people are building real systems with them today * where things break in practice This will be a **short, informal talk (\~15–20 min)** followed by open discussion and Q&A. Whether you’re an engineer, builder, or just curious about how modern AI systems work, you’re welcome to join. No slides, no fluff — just real conversation about real systems. We’ll hang out afterward and get to know each other.

**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: Type Annotations with John Cassidy 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

Join us as we get together for a Discount Tuesday / Choose Your Movie event to see your choice of two great films! Option 1 is the dark comedy/drama based on a true story TOW! The film stars Rose Byrne as a homeless Seattle woman how battles a towing company. Option 2 is the off-the-rails, over-the-top, action-comedy-horror THEY WILL KILL YOU! The film stars Zazie Beetz as a woman who answers a help wanted ad to be a housekeeper in a mysterious New York City high-rise not knowing its mysterious past! Here are details, trailers and our plan for this event: TOW: This dark comedy/drama is based on a true story and follows a homeless Seattle woman who fights her way out of "tow-company hell" to reclaim the car that had held her life together after receiving a tow bill for $21,634. The film stars Rose Byrne, Ariana DeBose, Demi Lovato, Octavia Spencer, Dominic Sessa, Elsie Fisher and Simon Rex! The film premiered to solid reviews at last year’s Tribeca Film Festival where critics declared, “TOW is a winner!” It’s “a story of perseverance, heart, and real fight, the kind of small human story we see less frequently these days, but need now more than ever.” TRAILER: https://www.youtube.com/watch?v=qdkpcsuPAhA THEY WILL KILL YOU: A woman takes a job as a housekeeper in a NYC high-rise, unaware of the building's history of disappearances. She soon realizes the community is shrouded in mystery. The film is directed by Kirill Sokolov and Zadie Beetz, Myha'la, Paterson Joseph, Tom Felton, Heather Graham, and Patricia Arquette. The film is being released immediately following its premiere at this year’s SXSW Festival earlier this month. Early reviews say it’s “an adrenaline rush of action-packed fights, tons of blood and gore and plenty of laugh-out-loud moments” and a movie that’s “unafraid to march to its own campy, violent, and clever little drummer!” TRAILER: https://www.youtube.com/watch?v=XYqQPiXpi4w PLAN: Not exactly a “Choose Your Movie” event, more like an early show and a late one (or both if you’re feeling sparky)! \* If you’d like to see TOW, please purchase your ticket for the 5:00pm showing and meet in the upstairs lobby between 4:40 and 4:50pm! \* If you plan to see THEY WILL KILL YOU, please purchase your ticket for the 7:45pm showing and meet in the upstairs lobby between 7:25 and 7:35pm! \* Tickets for both films on sale now and advance purchase is advised! Tickets just $5.00 ($6.50 after online fees when purchased via the GFC website). Once you have yours, please list your movie of choice and seat number in the Comments section of this event. \* Also, as a reminder, close, convenient parking available in the nearby garage (Between 9th and 11th, just off High) and just $2 when you have your ticket validated at the theater! Look forward to seeing you there, Dan

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.