Usability

**REGISTER AT THE LUMA EVENT PAGE!!!** https://luma.com/27ja5gwl Join us for an exciting talk by Mary Gibbs, Senior Applied Scientist at Relativity. ​ ​**​Agenda:** ​​6:00 - 6:30 PM - Welcome and mingle 6:30- 6:45 PM - Introductions 6:45 - 7:30 PM - Talk 7:30 - 8:00 PM - Wrap up **​​Description:** ​If you have ever shipped a model, watched your metrics improve, and later learned from your users that something was wrong, the metrics were always wrong. You just didn’t know it yet. An evaluation consists of three components, a benchmark, a scorer, and a claim about what a score represents. Each component has its own weaknesses. Benchmarks can suffer from narrow coverage, contamination, or saturation. Scorers are often chosen for ease of automation or computation rather than for their alignment with user outcomes. And the claim connecting a score to reality is rarely made explicit. These gaps compound across the model development lifecycle. When metrics improve, teams treat that as a signal and optimize directly against it, which is how a measurement problem becomes a model problem. This talk maps where evaluations can go wrong, considers counterarguments, and ends with practical advice for building better ones. **​Speaker Bio:** ​Mary is a Senior Applied Scientist at Relativity, tackling data science challenges in the e-discovery and legal tech space. She is also an organizer for Women and Gender eXpansive Coders DC (formerly Women Who Code DC), fostering a community dedicated to empowering women and nonbinary individuals to excel in their careers. Mary's experience spans various domains. She has developed data science solutions related to job search and career progression at Teal, cybersecurity challenges at LiveAction Software, and commercial and government consulting at Mosaic Data Science. Before venturing into the field of data science, Mary conducted and published research pertaining to the cellular and molecular mechanisms underlying neurodevelopment at the National Institutes of Health. In other words, she has dissected and imaged a lot of fruit fly brains. She holds a M.S. in Data Science from The George Washington University and a B.A. in Biological Sciences from Cornell University

This meetup is for people that want to play table games: board games, strategy games, episodic RPGs, eurogames, card games and co-operative games. NOT A GAMER BUT WANT TO LEARN? We teach them all... We are open minded on all games. Games we plan to teach and play include Ascension, Azul, Azul Summer Pavillion, Splendor, Magic The Gathering, Melee/Wizard, Backgammon, Castallan, Chess Variants, Compounded, Dead of Winters: Crossroads, Dixit, Dominion, Exploding Kittens, Flux, GravWell, Ghost Stories, Hanabi, Heroquest RPG, Hive, House Divided, House on the Hill, Illuminati, Ingenious, King of Tokyo, Lost Cities, Machi Koro, Munchkin, Pandemic, Pirate Dice, Ogre/GEV, Qwirkle, Race for the Galaxy, Roll Through The Ages, Ricochet Robot, RoboRally, Settlers of Catan, Sagrada, Sentinels of the Multiverse, Splendor, Spot-It, Sushi-To-Go, Takenoko, Ticket to Ride, Tsuro, Up Front, Yahtzee, Advanced Wizards Card Game, etc.

There is supposed to be a let up in the seemingly incessant rain. Let’s take advantage with a walk at Brookside Gardens. We will meet to the right of the visitors center. If anyone is interested we can go to lunch afterwards.

Bring a friend, bring family, and bring that neighbor that you kinda know... Come one, come all for some free table tennis. Note: Because we have been playing regularly for years, members tend not to RSVP. If there are any questions, feel free to message.

Did you know..... The National Portrait Gallery conducts free docent-led tours. No ticket needed! No hastle driving downtown either, the Green Chinatown Metro station is right across the street. Join us for the 1:00 p.m. "Highlights of the Collection" tour which will start in the F Street lobby. Afterward, we will walk several blocks to "54 Restaurant" for a pho soup lunch and conversation. Need more info.? Send me a message. Hope to see you there! ....Ross A.

You're invited to Weird Brothers Tabletop Tuesdays! We have some games and puzzles you can check out or bring your own and see who wants to play. Up to 16 seats available, reserve yours by selecting attend on this event.

Free flat-fix classes!! On the last Tuesday of each month, we host fix-a-flat classes! Bring your bike with you if you'd like to learn by using your own bike. We will cover basic flat fixes with an inner tube. We may be able to answer a few questions about tubeless, but the focus will be flat fixes for inner tubes.

GM Jason will run an Ultraviolet Grasslands session. Stay with me, here: what would happen if we mashed up Oregon Trail with Dying Earth with Mad Max? Well, UVG answers that question (that nobody ever asked) with this heavy metal psychedelic fantascience pointcrawl game. Please the horned catlords by hitching your lime green fox-ocerous pony to your wagon and heading west to see if you can’t trade all this vampire wine for some profit! None of those words will make any more sense to you after playing, probably, but we’ll have an amazing time exploring! This will be way more about the joy of exploration, the tedium of travel, and the thrill of commerce than it will be about battle. If that sounds refreshing, come try something new with us! If you’d like to try to roll up a new character, DM the DM and I’ll get you instructions. New players welcome! No prep needed! **Where**: 1111 Belle Pre Way, Alexandria. Right across the laneway from Lost Dog. Looking for a place to play in-person RPGs and make new friends? Burnt out on internet D&D? Interested in trying games like Shadowdark and Dungeon Crawl Classics? Look no further than DMV RPG - Open Table! Whether you're a seasoned player or just getting started with tabletop role-playing, our group offers a welcoming, inclusive, and safe environment for all gamers to gather and embark on epic adventures together. From Dungeons & Dragons to sci-fi sagas, there's something for everyone here. Join us for regularly scheduled meetups, make new friends, and unleash your imagination in a fun and collaborative setting. Let the games begin! **Rules**: always teachable at the table **Gaming is for everybody**: Welcoming, inclusive, and safe **Pregens**: the GM will have pre-made characters so you can jump right in **Game**: Old School & New School, but likely lightweight **Multiple GMs**: We run games in a rotating GM format, so come to play and make friends, but we'll be looking for your interesting one-to-three shots to try.

**\*\*You must purchase a ticket [here](https://sommcircle.clubexpress.com/content.aspx?page_id=4002&club_id=650343&item_id=2926832). \*\*** Ever find yourself nodding along at a wine tasting, wishing you knew what to actually say — or even what to look for? This is the evening that changes that. Speak Fluent Wine is a hands-on tasting experience designed to teach you the exact framework wine professionals use to evaluate what's in the glass. You'll go from "I just know what I like" to understanding \*why\* you like it — and having the words to say so. Here's what we'll cover: ?? Sight — What color and clarity reveal before the first sip ?? Nose — How to train your sense of smell and identify aromas with confidence ?? Palate — Decoding what your taste buds are picking up: sweetness, acidity, tannins, body, and finish ?? Structure — How the elements of a wine interact, including how acidity softens sweetness and tames tannins ??? Language — The vocabulary professionals use, demystified and made practical Once we've broken down the framework, Total Wine's expert staff will lead a short guided tasting — putting everything you've just learned directly into practice. Snacks and water will be provided. Cost is $25 No experience necessary. No judgement. Just great wine, a welcoming atmosphere, and the confidence you've been waiting to find. **\*\*You must purchase a ticket [here](https://sommcircle.clubexpress.com/content.aspx?page_id=4002&club_id=650343&item_id=2926832). \*\***

Ausarian Tantra Yoga is a practice that infuses the spirit and power of enlightenment through synchronizing breath, movement, meditation, and silent affirmation. Ausarian Tantra Yoga incorporates postures that reflect some of the principles of the Kemetic culture. It is a practice wherein gradual and deliberate movement allows moments for the mind, body, and spirit to connect and express oneness. **Please reserve your spot at www.piesfitnessyoga.com**. The session is offered both InStudio and OnLine. The Zoom link for the OnLine session will be emailed 15 minutes before class starts to those who are registered at www.piesfitnessyoga.com. **Sign up for sessions must be made at least 2 hours prior to class.** The address is 1322 Prince St Alexandria, VA 22314. Our entrance is located on the side of the building, parallel to West St. **Street parking is available and additional parking is located at Shiloh Baptist church, spaces 36,37,38,39.** The church is located across the street from the studio, on the corner of Duke St. and West St. Discount is available to seniors, teachers, students, emergency responders, and military. All can save by purchasing class packs.

Weekly Saturday group ride, starting at Handy Bikes Retail Showroom. Come ride with locals in the area! This group ride is for average folks who want to go for an average ride. It's not quite a coffee ride, but it's definitely not a race! Routes will vary around the area, with an average speed around 14 mph (minimum of \~10 MPH) for around 15-30 miles. We'll be on pavement so bikes with smooth tires are encouraged, **helmets are mandatory**. Open to any riders who are willing and able to ride with a group including Class 1, 2, and 3 e-bikes. No speed demons please! Good group ride etiquette is a requirement. Shop opens at 10:00 am Show up and sign in by 10:15 am Roll out 10:30 am Please RSVP in advance, so that the ride leaders can prepare for the group's size. [Handy Bikes on Strava](https://www.strava.com/clubs/737920/leaderboard) [Handy Bikes on RideWithGPS](https://ridewithgps.com/organizations/14675-handy-bikes)

Join PSW Science® on May 29 at 8 PM as we welcome Michael Garrett (U. of Manchester) & Adam Thompson (NVIDIA). During the question and answer period, in-person attendees and live stream viewers may ask the speaker questions, and in-person attendees may also engage with the speaker during the post-lecture reception. Refreshments are served. For more information on this meeting, please visit: https://pswscience.org/meeting/2536 The meeting will be held in the John Wesley Powell Auditorium, adjacent to the Cosmos Club. The Powell Auditorium is located at 2170 Florida Avenue, NW Washington, DC 20008. Use of the Cosmos Club is restricted to the Powell Auditorium, the entryway to the auditorium, and the restrooms immediately outside the auditorium. Please note there is no onsite parking available. PSW Science, founded in 1871, is one of the oldest scientific societies in Washington D.C. Now, over 150 years later, we celebrate the Society's rich history and contributions to scientific discovery and cross-disciplinary collaboration. For information on how to become a member of PSW Science and membership benefits, please visit https://pswscience.org/join/

To secure your spot, RSVP on Eventbrite link for free ([https://www.eventbrite.com/e/live-band-karaoke-and-contest-tickets-650453934227](https://www.eventbrite.com/e/live-band-karaoke-and-contest-tickets-650453934227)). RSVPing only on the Meetup Page doesn't allow you to attend the Event. ADVANCE REGISTRATION IS REQUIRED. ABOUT THE EVENT Embrace your inner diva and flaunt your vocals all night! Whatever you want to sing, we want to hear it. The entire group accompanies you when you sing and we will be your background singers. Don’t sing, no problem. Sit back, relax and enjoy the show. Need a little liquid courage? We have you covered. Before taking the stage, we’ll have plenty of drink specials. You’ll be sure to work up an appetite, so we will also feature food specials all night. Grab your friends and get ready to be the star of the show. Dress code : Weekend Casual Event is free and 21+ * Come one, come all; YOU COULD FLY SOLO TOO:) This is the most friendliest event you have ever attended! * Feel free to invite your friends. They don't necessarily have to be a member * Ideal for either you are new in town or not, to make friends and acquaintances * We will have a registration station and check you in. * * METRO & PARKING INFO : Clarendon Metro Station is a block away. Parking might be a challenge and the event involves drinking, we highly recommend you to get a shared ride or taxi service. DRINK RESPONSIBLY! http://photos3.meetupstatic.com/photos/event/9/7/5/6/600_434918742.jpeg http://photos4.meetupstatic.com/photos/event/7/1/3/6/600_418768982.jpeg http://photos4.meetupstatic.com/photos/event/9/7/9/c/600_434918812.jpeg

Our first option for *Pippin* at Signature Theatre will be Saturday, May 30 at 8PM. If you cannot make that performance, we'll have another option, likely in July--please fill out this Doodle poll with all the options that can work for you: [https://doodle.com/group-poll/participate/e9XxzvJd](https://doodle.com/group-poll/participate/e9XxzvJd). I am unable to make the May 30th performance, so folks will need to buy their own tickets. You can purchase on [TodayTix](https://www.todaytix.com/booking/seating-plan?product_id=44342&content_product_id=44342&venue_id=10901&product_type=show&qt=2&showtime_id=2299954&slot=20:00&date=2026-05-30) or from [Signature Theatre's website](https://tickets.sigtheatre.org/syos/performance/13864). For folks who like front row seats, you could form a ticket block in Orchestra North. Stephen Schwartz’s (*Godspell*, *Wicked*) musical masterpiece of purpose, ambition, lust and glory sizzles for summer, thrillingly staged as only Matthew Gardiner can do. Medieval traveling performers bring to life the story of Pippin, the restless heir of Charlemagne, on his quest for purpose. Dreaming of greatness, he dives into war, passion, and even murder—only to find himself disillusioned at every turn in this dazzling and provocative coming-of-age parable about what it means to be extraordinary. Join us for this sardonic and witty extravaganza, flush with spellbinding dance and the iconic songs “Corner of the Sky,” “Magic to Do” and “Morning Glow.”

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** TBD

By popular demand, the group wanted to read and discuss the semi-autobiographical novel by Henri-Pierre Roche, that inspired the Truffaut movie we watched last year. The book is available through the Columbus Library's interlibrary loan system. They reported there are twenty-eight copies available in the state of Ohio. If you have a library card, you can file an interlibrary loan request here: https://www.columbuslibrary.org/library-services/ . There are also used copies available on Amazon and eBay for under twenty dollars. You may want to rewatch the movie after reading the book, so we can compare and contrast in our discussion. The Columbus Library has four copies on DVD, and it's streaming on HBOMax.

Most people use AI like a search box: they type one sentence, hope for the best, and get frustrated when the answer is generic, wrong, or useless. But getting better results from tools like ChatGPT, Claude, Gemini, and other AI systems is not about memorizing magic prompts. It is about learning how to give the AI better context. In this beginner-friendly session, we’ll break down how to make AI dramatically more useful by improving the way you communicate with it. You’ll learn how to give clearer instructions, provide examples, set constraints, ask for better output formats, and use follow-up questions to turn a mediocre answer into a genuinely useful one. We’ll cover practical techniques you can use immediately for work, learning, writing, coding, planning, research, and everyday problem solving. We’ll also touch on why these same ideas show up in more advanced AI systems, including RAG, agents, evaluations, and AI workflows. No technical background required. Bring your curiosity, your questions, and maybe one real task you wish AI was better at helping you with. **What you’ll learn:** * Why “better prompting” is really about better context * How to structure requests so AI gives more useful answers * How to use examples, constraints, and output formats * How to iterate when the first answer is not good enough * How these skills connect to more advanced AI workflows This meetup is for anyone who wants to move beyond basic ChatGPT usage and start getting more practical value out of AI. 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.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

In the year 2044, in the age of AI, a woman named Gabrielle (Seydoux) tries to purify her DNA by purging the inherited memories of her past lives. She (re)lives her life in 1910 Paris and 2014 Los Angeles, and as the procedure goes on, the lines between her worlds become blurred. These three timelines have a lot of connective tissue holding them together; certain symbols and motifs appear repeatedly, not to mention Mackay’s Louis, a figure whom Gabrielle seems drawn to in each lifetime.

Join us as we get together to see Paul Rudd in the latest comedy-drama-musical from John Carney, POWER BALLAD! The film follows a washed-up wedding singer, a fading boy band singer and a stolen hit song. Here’s a description, trailer and plan for this event: DESCRIPTION: Rick, a washed-up wedding singer, and Danny, a fading boy band star, bond over music and a late-night jam session. When Danny turns Rick's song into a hit, Rick sets out to reclaim the recognition he believes he deserves. Power Ballad is written/directed by John Carney, the master of the modern musical and creative mind behind Once, Begin Again and Sing Street! It stars Paul Rudd, Nick Jonas, Peter McDonald, Marcella Plunkett, Havana Rose Liu and Jack Reynor. BUZZ & ACCLAIM: The film premiered to rave reviews at this year’s Dublin International Film Festival where critics call it “a sure-fired crowd-pleaser” that “just might be the feel-good hit of the year!” Others say, “Paul Rudd delivers a career-best performance in this charmer” that’s both “hilarious and deeply moving!” SUMMER OF ICE CREAM, VOL 2: SHAKE NO. 8! Ranked the #1 Ice Cream Shop in Columbus in 2024, this is the perfect place to kick off our Summer of Ice Cream and grab a sweet treat after the show! Their menu features an array of traditional, specialty and vegan shakes, hot cocoa, and more! You can check out their full menu here: [https://www.shakeno8.com/menu.php](https://www.shakeno8.com/menu.php) PLAN: We’ll plan for a 7pm-ish showing and will meet in the lobby area about 20 minutes before the show. Once showtime is announced, advance ticket purchase is advised! Once you have yours, please list your seat number in the Comments section of this event. We'll head to nearby Shake No. 8 immediately following the show! Should be a fun one, Dan