GIS

**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 **no gi class** focuses on **[Brazilian Jiu-Jitsu](https://en.wikipedia.org/wiki/Brazilian_jiu-jitsu) (BJJ) concepts**, including **takedowns**, **positional drilling**, **submissions**, **transitions**, **situational sparring**, **strategy development**, and **live training**. While the class is scheduled for **90 minutes**, it may run longer depending on content and participation. This class includes both **instruction** as well as [rolling](https://www.howbjjworks.com/bjj-blog/2018/7/29/how-rolling-works-in-bjj) (**sparring**) and a **question-and-answer** section. **Some of the topics covered in this class include:** 🤼 **Wrestling** \-\- Takedowns\, ties\, and controlling the stand\-up game using wrestling fundamentals adapted for no gi BJJ competition and self\-defense\. 🤼 **Catch Wrestling** \-\- A traditional grappling system emphasizing submissions and relentless pressure \-\- [catch wrestling](https://en.wikipedia.org/wiki/Catch_wrestling) concepts add a ruthlessly practical dimension to no-gi BJJ. 🥋 **Judo adapted to no gi BJJ** \-\- Classical [Judo](https://en.wikipedia.org/wiki/Judo) throws and **off-balancing principles** translated into a no-gi context, giving grapplers a powerful and often underused takedown arsenal. 🧠 **[Constraints-Led Approach](https://www.bjjmentalmodels.com/constraints-led-approach) (CLA) to learning and games** \-\- A modern\, evidence\-based coaching methodology that uses structured games and constraints to accelerate skill acquisition naturally and intuitively\. 📌 **Pins** \-\- Controlling and maintaining dominant positions on the ground \-\- [pins](https://en.wikipedia.org/wiki/Pin_(sport_wrestling)) are the foundation of effective ground fighting and set up submissions, transitions, and pressure. 🔒 **Submissions** \-\- Chokes\, arm locks\, and [finishing techniques](https://en.wikipedia.org/wiki/List_of_Brazilian_jiu-jitsu_techniques#Submissions_(Most_Frequent_in_UFC_%E2%80%93_Sorted_by_Frequency)) applied from dominant positions -- the ultimate objective of BJJ ground fighting. 🦵 **Leg locks** \-\- Heel hooks\, kneebars\, ankle locks\, and toe holds \-\- [lower body submissions](https://en.wikipedia.org/wiki/Leglock) that are increasingly central to high-level no gi competition. 🔄 **Guard passing and guard retention** \-\- The core positional chess match of BJJ \-\- learning to break through an opponent's guard while protecting your own is fundamental to controlling a match\. ⚖️ **Kuzushi (off-balancing)** \-\- The Japanese principle of [disrupting an opponent's balance](https://en.wikipedia.org/wiki/Kuzushi) before executing a throw or takedown -- a concept borrowed from Judo that dramatically improves takedown success rates. 🔥 **Pressure and cooking opponents** \-\- Using body weight\, positioning\, and [relentless forward pressure](https://bjjfanatics.com/blogs/news/pressure-bjj) to physically and mentally exhaust opponents -- a high percentage strategy at all levels. The **drop-in fee** for non-members is **$20** and can be **paid on-site**, or **[sign up for a week of training for free](https://www.pedrosaueracademy.com/).**

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.

Join us every **Tuesday** from **6:00 PM** to **7:00 PM** at the [Pedro Sauer Academy of Self-Defense](https://www.pedrosaueracademy.com/) (PSA) in [Herndon, VA](https://en.wikipedia.org/wiki/Herndon,_Virginia) for a women's only [Brazilian Jiu-Jitsu](https://en.wikipedia.org/wiki/Brazilian_jiu-jitsu) (BJJ) **gi class** designed for **all experience levels**. The **drop-in fee** for non-members is **$20** and can be **paid on-site**, or **[sign up for a week of training for free](https://www.pedrosaueracademy.com/).** Beginners and experienced grapplers alike will find a **welcoming**, **supportive environment** where women **train together**, **grow together**, and **push each other forward**. **What to expect**: Each session covers practical BJJ techniques with a focus on real-world **[self-defense](https://en.wikipedia.org/wiki/Self-defense)**, **body mechanics**, and **positional grappling** \-\- building **functional fitness** alongside genuine **technical skill**. Class runs from **6:00 PM** to **7:00 PM**, followed by **open mat** for those who want to **continue training**, **drill techniques**, or **get additional sparring rounds** in. This class is for you if: * You're curious about BJJ and want to try it in a **women's only setting** * You want to **develop practical self-defense skills** * You're looking for a **fitness routine** that's **challenging**, **fun**, and **actually useful** * You already train and want **dedicated mat time with other women** No gear? No problem! Just show up -- **loaner gis** are available if you don't have one yet.

## Please read all below before you sign up **Cost:** Free **Court Type:** Outdoor Grass **Level:** BB/A **Transportation:** Parking will be right by the grass. **What to bring:** at least 3 bottles of water and a ball/net if you have one. **8 persons per net max** **Host's Philosophy on This Event:** The purpose of this meetup is to create a fun and supportive environment where we can improve our skills, enjoy competitive games, and connect socially. While we do aim to play seriously and challenge ourselves, the focus is more on growth and enjoyment than simply winning at all costs. That’s why the title doesn’t include “competitive” or “social”—we want a healthy mix of both. We do expect a mindset geared toward learning and getting better over time. That said, this event isn’t intended for total beginners; an understanding of the game is expected so that everyone can contribute to meaningful and engaging matches. The host holds the right to remove you from the game if they believe that you are at a C level (absolute beginner). If you can't pass to the setter, for example, you are a beginner. **Skill Level:** 1. **If you want to know your level, please see the link below:** [Smiley Social Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/edit) **YouTube:** The games may be recorded and uploaded to our channel here: Let the host know if you have an issue with this. [Youtube](https://www.youtube.com/@mp02626) **ATTENDANCE:** **Player Selection:** Regulars > Your Vibe > Skills > \*Flaky-ratio (your attendance ratio) > New Members \*If you have attended 3 events and dropped 6, you may or may not be invited. Anyone with a flaky ratio of -.50 or lower. If you have a recent no-show, you may not be invited. The host takes attendance very seriously. Please remove yourself from the event (if you can't make it) as early as possible to allow others to join. You will be marked as a ***no-show*** if you don't show up to the event. [Smiley Social Rules](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg/edit) **Q&A** *-Bringing your dog or cat is welcome and encouraged.* -Can I come if I don't know how to play? \*No, you may not. The host does teach a beginner's volleyball class that you may attend on Saturdays. -Can I be late or leave early? *The host expects you to be there **on time** and leave on time. If you need to come late or leave early, please let the host know ahead of time.* -Can I come even if I am not on the going list? \*No, sorry -How can I improve my flaky ratio? *You can attend other Smiley events. Commit to showing up.* -Why are new members accepted last? *Because they are the most flaky.* -NO SMOKING (anything) **Smiley Social Important Links:** 1. [Group Rules](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 2. [Liability Waiver](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco) 3. [Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/)

**RSVP DOES NOT GUARANTEE YOUR SPOT. You must register via our website:** [https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm](https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm) **Defensive Skills & Setting Camp** This camp is designed for **adult volleyball players (ages 20 & above)** looking to improve their defensive & setting skills. Ideal for **all skill levels**, this camp offers an opportunity to receive skill instruction from George Washington's coaching staff. Defense & Setting Skills Camp is designed to develop well-rounded back-row defenders and setters by blending high-level defensive training with position-specific setting work. This session allows defenders to sharpen their floor skills while providing setters with focused, individualized technical training. **What to Expect:** Players will work on defensive techniques including platform control, reading hitters, movement patterns, & ball tracking in fast-paced, game-like drills. Back-row defenders will also learn how to set out-of-system to expand their skill set & decision-making. Setters will receive high-level 1v1 technical training while also spending time working on their own defense & blocking, helping them become more complete, well-rounded players on the court. We will spend the first hour & a half on skill instruction & the last 30 minutes playing competitive 6v6. 6v6 play will be recorded & distributed to participants so you can track your progress! **Camp Schedule:** 🗓️ *Tuesday, May 26th* * 6:45 PM – Doors Open, Check-in begins at the Charles E. Smith Center * 7:00 PM – Camp Begins * 9:00 PM – Camp Ends **Important Info:** * **You must register via our website:** [https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm](https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm) * This camp is for **adults only** – you must be **above the age of 20 or have exhausted your NCAA eligibility.** * You will enter the Charles E. Smith Center at the **Ticket Office Entrance**, located on 22nd St. * **Please do not arrive early; basketball will be finishing up their practice at this time & we cannot accommodate your arrival earlier.** * Payment is due at the time of signup. * If you have questions, please contact us at katiereifertvolleyballcamps@gmail.com * *By registering, you agree that we may use your photo for marketing.* We can’t wait to see you there!

\-\-\-\-\-\- [REGISTER FOR THE EVENT HERE (ON LUMA)!](https://luma.com/be8kjf6n) \-\-\-\-\-\- Join us for an evening of collaborative problem-solving as we work on a variety of civic tech projects together. Project needs vary but often include brainstorming, researching, writing, coding, or analyzing data. Check out [our website](https://www.civictechdc.org/projects) for a list of projects which may make an appearance! Meet other civic tech enthusiasts. Learn new skills. Contribute to a project to improve a local civic issue. **All are welcome and collaboration is encouraged.** Laptops are recommended but not required. **Where do I register?** To better serve our growing community, we’re transitioning our event registrations to [Luma](https://luma.com/civic-tech-dc)! **We still love Meetup** Meetup has been an incredible platform for us to build and connect with our community. We’ll continue sharing upcoming events there so that new people can find us, but [Luma](https://luma.com/civic-tech-dc) will be our primary registration platform moving forward. **Why we're making the switch** Meetup’s registration system has some limitations, and we need more flexibility to manage sign-ups and engagement. \-\-\-\-\-\- [REGISTER FOR THE EVENT HERE (ON LUMA)!](https://luma.com/be8kjf6n) \-\-\-\-\-\-

This **no gi class** focuses on **[Brazilian Jiu-Jitsu](https://en.wikipedia.org/wiki/Brazilian_jiu-jitsu) (BJJ) concepts**, including **takedowns**, **positional drilling**, **submissions**, **transitions**, **situational sparring**, **strategy development**, and **live training**. While the class is scheduled for **90 minutes**, it may run longer depending on content and participation. This class includes both **instruction** as well as [rolling](https://www.howbjjworks.com/bjj-blog/2018/7/29/how-rolling-works-in-bjj) (**sparring**) and a **question-and-answer** section. **Some of the topics covered in this class include:** 🤼 **Wrestling** \-\- Takedowns\, ties\, and controlling the stand\-up game using wrestling fundamentals adapted for no gi BJJ competition and self\-defense\. 🤼 **Catch Wrestling** \-\- A traditional grappling system emphasizing submissions and relentless pressure \-\- [catch wrestling](https://en.wikipedia.org/wiki/Catch_wrestling) concepts add a ruthlessly practical dimension to no-gi BJJ. 🥋 **Judo adapted to no gi BJJ** \-\- Classical [Judo](https://en.wikipedia.org/wiki/Judo) throws and **off-balancing principles** translated into a no-gi context, giving grapplers a powerful and often underused takedown arsenal. 🧠 **[Constraints-Led Approach](https://www.bjjmentalmodels.com/constraints-led-approach) (CLA) to learning and games** \-\- A modern\, evidence\-based coaching methodology that uses structured games and constraints to accelerate skill acquisition naturally and intuitively\. 📌 **Pins** \-\- Controlling and maintaining dominant positions on the ground \-\- [pins](https://en.wikipedia.org/wiki/Pin_(sport_wrestling)) are the foundation of effective ground fighting and set up submissions, transitions, and pressure. 🔒 **Submissions** \-\- Chokes\, arm locks\, and [finishing techniques](https://en.wikipedia.org/wiki/List_of_Brazilian_jiu-jitsu_techniques#Submissions_(Most_Frequent_in_UFC_%E2%80%93_Sorted_by_Frequency)) applied from dominant positions -- the ultimate objective of BJJ ground fighting. 🦵 **Leg locks** \-\- Heel hooks\, kneebars\, ankle locks\, and toe holds \-\- [lower body submissions](https://en.wikipedia.org/wiki/Leglock) that are increasingly central to high-level no gi competition. 🔄 **Guard passing and guard retention** \-\- The core positional chess match of BJJ \-\- learning to break through an opponent's guard while protecting your own is fundamental to controlling a match\. ⚖️ **Kuzushi (off-balancing)** \-\- The Japanese principle of [disrupting an opponent's balance](https://en.wikipedia.org/wiki/Kuzushi) before executing a throw or takedown -- a concept borrowed from Judo that dramatically improves takedown success rates. 🔥 **Pressure and cooking opponents** \-\- Using body weight\, positioning\, and [relentless forward pressure](https://bjjfanatics.com/blogs/news/pressure-bjj) to physically and mentally exhaust opponents -- a high percentage strategy at all levels. The **drop-in fee** for non-members is **$20** and can be **paid on-site**, or **[sign up for a week of training for free](https://www.pedrosaueracademy.com/).**

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)

This class will provide instruction into various concepts of **Jiu-Jitsu** as a form of **martial art**. Participants will have the opportunity to **study**, **practice**, and **experiment** with **submission holds** and **strategic fighting controls** that are the hallmark of the now famous methodology of Professional MMA athletes and professional combatives users. This **gi class** is held every **Tuesday** and **Thursday** and includes **one hour of instruction** and **30 minutes** (sometimes longer, TBD) of **open training**. Gis are available if you need one. Drop-in fee for non-members is **$20** which which can be paid on-site. Note that we are in **Suite #130**.

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.

**\*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.

NOTE: This working session is at Lamond-Riggs Library not MLK. It is near the Fort Totten Metro Station. A game development **Working Session** involves 3 key parts: 1. Tell people what you're going to do 2. Actually do stuff 3. Show people what you did **What to bring**: Laptop, Charger, maybe a power strip if you have one handy, any other game development tools you need. Try to download any software you need before the working session. There is Wifi at this location, but it may be slow if you have to download any large files.

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/

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

**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** https://youtube.com/live/BltmWMH1zG0?feature=share

The number of ticks and tick diseases in Ohio have quickly multiplied over the last 10 years. Dean Kreager discusses tick species, tick pathogens, tick-borne diseases, tick bite prevention, and proper tick removal. Kreager is an Agriculture and Natural Resources Educator with OSU Extension in Licking County * Lakewood Public Library (in Hebron)- May 26 at 7pm [https://events.lickingcountylibrary.org/event/tick-talk-29621](https://events.lickingcountylibrary.org/event/tick-talk-29621) * Johnstown public library at 7:00 pm June 8 [https://events.lickingcountylibrary.org/event/ctick-talk-29622](https://events.lickingcountylibrary.org/event/ctick-talk-29622) Free to attend, no RSVP needed

**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

We'll get in around 4 miles at Three Creeks Metro Parks, primarily natural trails. 17-18 minute miles, no one left behind, and faster walkers are free to lead out. Optional lunch after! If you're joining for hiking all the metro parks, this is the sixth one!