MapReduce

If you run an AI startup or you have a project or business idea, join us for first AI entrepreneur gathering of this group. Here is my Steve Kantor LinkedIn: https://www.linkedin.com/in/steve-kantor-594784. You? Feel free to connect. I was in original group started by Marc Pickett a decade ago and I am now a co-organizer. Text me 202-297-2393 if you register or cannot come to this event but want to connect with other startup founders. Help Each Other Anything is Possible

**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

Reboot Hour is a feel-good, drop-in happy hour for meeting great people, playing a few games, and resetting your week. **Come stressed, leave refreshed. Donate old tech too!** This is the **anti-event**: no agenda, no speakers, no pressure. Just good people + games + conversation. Quick community note: eWaste Warriors has been getting noticed — **Rob Link was named a RealLIST Connectors DC 2026 Top 20 Connector**. You’ll feel that energy in the room: a lot of those “connector” folks show up here to meet people and pull others in. **Optional bonus (1 minute): bring 1 working device** (phone/tablet/laptop/etc.). Donating feels good because it helps real people and keeps good tech in circulation. Accepted: phones, tablets, laptops, smartwatches, AR/VR headsets, game consoles, headphones. Not accepted: screens, CRTs, appliances, loose batteries. **When/Where:** Tue, May 26 • **5:00–7:30 PM** (drop in anytime) Carpool Ballston — 900 N Glebe Rd, Arlington, VA (Ballston Metro)

Brisk 3- to 4- mile urban hike starting outside Hotel Hive and finishing at their rooftop Hive Bar. We will hike to Theodore Roosevelt Island, across the Key Bridge, and back through Georgetown to Hive Bar for drinks and food. Closest metro GWU.

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.

We'll check out Lot 38 espresso bar in DC . This place closes at 2 PM, so please plan to come early if you're attending this meetup. After the coffee meetup, we will check out the Bluejacket for some sour and wild beers. Please have a picture profile so we can recognize you in the meetup. Please only sign up if you're sure about attending this meetup, and please update your RSVP as soon as possible if you need to cancel, thank you!

Hands-on learn how to save life & limb, when mired in the wilderness of an urban disaster zone, travel or rural area far from hospital, or natural area miles from an access point, during the critical minutes or hours before ambulance arrival. Come away with actual do-it-yourself care-giving skill and confidence, and 2-year SOLO certification. Counts as WFR Recertification, too. No prerequisites. YOUR SPOT IS NOT RESERVED UNTIL YOU'VE COMPLETELY REGISTERED AT WWW.SOLOWFA.COM \***Spaces are limited. REGISTER: www.solowfa.com or 434.326.4697** Can't make these dates? Check out more course locations and dates on our website. WHO: Open to the general public, adults & teens with solid attention spans. Know your loved ones are safe wherever they are. WHY: Mired in a disaster zone, travel or rural area far from a hospital, or natural area miles from an access point ... accidents, destructive weather, and terrorism happen, and all-too-often members of a group are not capable of dealing with the emergency. This leads to improper care of the patient, and endangers the entire group. Many recreational accidents are preventable, and improper care of trauma can compound even simple injuries. Very few first aid programs actually address the issues of providing emergency care in a setting where 911 is overwhelmed or not immediately reachable. In this course, classroom instruction and Q&A are interwoven with practical work and problem-solving exercises. Hands-on experience - a most powerful learning tool - during scenarios comprise \~50% of class. TIMING: This is a 2-day class, Saturday and Sunday, 8:00am -7pm each day. Fee: $295 (Earlybird)

**\*TO ATTEND REGISTER AT - [https://www.socialevents123.com/event-details.aspx?id=13390#tix](https://www.socialevents123.com/event-details.aspx?id=13390#tix)** Cost: $15- $20 depending on how early you register. (\*Multiple Meetup groups are co-organizing so RSVP's shown are just a small % attending. ABOUT: Do you know more than 6th Graders! Here is your opportunity to have some fun playing our Live interactive trivia game (Categories will be History, English/literature, Geography, Science, Math, Potpori). HOW IT WORKS: You can attend via a computer & Webcam or Smartphone/Ipad/Tablet. This completely online event will be LIVE and you will be able to see and hear the other participants while playing. In addition you get to meet and interact with other participants. At game time, your host will read off Trivia questions. Your goal is to come up with the right answer to each question and write it down on your paper. Once the round is over (about 6 questions), we will go through the answers and determine who had the highest score for the round. They will get a raffle ticket for a chance to win a prize at the end of the event. We will have multiple rounds of play and have a system to also virtually introduce you to other participants. HOW DO YOU FIND THE VIRTUAL ROOM: After you purchase your ticket, you will get a confirmation with the zoom link ON DAY OF THE EVENT. RSVPS ON HERE ARE NOT REFLECTIVE OF ACTUAL ATTENDANCE as this is a multi group event. **\*TO ATTEND REGISTER AT - [https://www.socialevents123.com/event-details.aspx?id=13390#tix](https://www.socialevents123.com/event-details.aspx?id=13390#tix)** Cost: $15- $20 depending on how early you register.

Danceintime runs Cuban Salsa Classes & Social Dancing Every Saturday, all year-long. Come at 1:15 pm to sign in. Stay till 4 pm. Some of us go out for coffee or a bite to eat afterwards and everyone is welcome! $15/person. Cash, PayPal, Venmo, Apple Pay, or Card accepted. Chevy Chase Baptist Church; 5671 Western Ave. NW; Washington DC 20015. NOTE: Enter through back corner door of the church. Danceintime classes are great fun. The dance moves are beautiful, fun, and our class creates a bonded community... Check it out! Class will be held every Saturday in December....celebrate the holidays with dance! For more info: danceintime.com/classes Questions? Contact Barbbernsteintalks@gmail.com

DeafPlusAdvocate is hosting our monthly ASL Social event in the DMV. Join us for a late spring ASL Social at Garden Social. Also, enjoy Hawaiian cuisine and great outdoor and indoor space. .If you are Deaf/hearing, interested in socializing, or looking for practice with American Sign Language (ASL), join us! All ASL levels are welcome! This is the perfect place for you! We will host ASL Social on Saturday, May 30th, at the L&L Hawaiian Barbecue from 5:00 PM - 8:00 PM. The address is: 4363 John Marr Dr, Annandale, VA 22003. If you have any questions, please don't hesitate to contact the DeafPlusAdvocate team.

[Book Your Classes by Clicking This Link! ](https://crowndancestudio.com/group-classes/) Friday: Advanced Expression End the work week with high-energy **Advanced Rhythm** from **7:00 PM to 8:30 PM**. This session dives deep into the technicalities of Latin and Ballroom styles like Rumba, Samba, or Mambo, designed for dancers who value precision and artistic expression. For $25, you'll receive intensive instruction that pushes your physical boundaries and refines your competitive or performance edge in a high-vibe atmosphere. **When: Every Friday** **Time: 7:00 pm to 8:30 pm.** **1 Dances per month:** **\*Please check the flyer on the group class page for the dance of the month. Or contact us to find out.** **Cost:$25 per person for 90 min.**

**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

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.

Couldn't make Knowledge? Or want to debrief the dancing robots or Autonomous Workforce? Join us for a Knowledge '26 recap, insights sharing, a couple rounds of golf, and fun at Topgolf. As always, drinks and food will be provided. More details to come — mark your calendar, RSVP, and save your spot today!

This is an in-person meeting. At this meeting you will get answers to depression and anxiety. Find out the source of them and how to get rid of them. Did you know that unwanted emotions like anxiety, depression, unhappiness, loneliness, hopelessness, anger, fear, or feelings of irritation don’t just fall on you for no reason. They are not random occurrences that simply happen to people's minds. They are definitely not due to a chemical imbalance in your brain from some nebulous chemical reaction "by chance". Your negative emotions are the symptoms of the painful experiences that you have which are not healed, and which are still affecting you. The effects of these painful experiences are exacerbated by the pressures or difficulties of the other problems in your life. Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Hubbard Dianetics Foundation of Central Ohio and Church of Scientology of Central Ohio.

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

Communication is everything in life! You are only as successful as your ability to communicate. \- What if you could confidently talk to anyone? \- What if you had the ability to calmly control every conversation? \- What if you could close that sale\, ask for that date\, make new friends\, repair problematic relationships\, get that raise\, or effortlessly express any idea with confidence? You can! The secret to success relies on your ability or inability to effectively communicate. Attend a free seminar and gain a better ability to communicate. Hosted by the Church of Scientology of Central Ohio For more information, contact Rhiannon, the Event Host at 614-221-5024

Some trained COUNT volunteers work together once a month at RMH (http://www.rmhc-centralohio.org/volunteer.php) as Housewarmers (usually on the 1st Sunday from 1 – 5 PM). Some schedule other shifts at their convenience. You may try this out with less fuss by following a "Fast track" or go through the normal process. Fast track • Arrange a time to shadow a COUNT volunteer. Call Dave Nohle at 614-268-9558 (cell). • Show up and try it out. • Complete application, etc. later. Normal process • Complete an online application (http://rmhc-centralohio.org/volunteer/). • Attend orientation in advance. • At orientation you will complete forms agreeing to keep family/patient info private and allowing a background check and tour the facility. • Complete one training shift. Daily shifts are: morning 9 AM - 1 PM, afternoon 1 - 5 PM and evening 5 - 9 PM. • Schedule shifts online using the on the RMH scheduling system (http://www.volgistics.com/ex/portal.dll/?FROM=32895). The Ronald McDonald House (RMH) provides housing and meals for families with sick children. The Columbus RMH is the largest in the world with 137 rooms. COUNT has been volunteering there since May 2014. Housewarmers work with RMH guests to provide a home-like environment - greet, assist with family needs, answer phones, give tours, assist with checkin/checkout, prepare guest rooms after checkout, clean facility, laundry, restock supplies and staff the front desk. RMH Housewarmers volunteer at least one four-hour shift a month. All Housewarmers must complete an application and agree to a background check before they can be full fledged volunteers.