MapReduce
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Frequently Asked Questions
Yes! Check out mapreduce events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the mapreduce events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find mapreduce events near your location here. Connect with your local community and discover events within your area.
MapReduce Events Today
Join in-person MapReduce events happening right now
Monday Morning Courthouse Run/Walk - 40 Min
On Monday, we'll meet in front of the Courthouse Library, 2100 Clarendon Blvd, and head towards the Arlington Cemetery and Memorial Bridge.
Notes:
If you're not familiar with the area, please review the routes. If it's cold, take cover inside the foyer area of 2100 Clarendon Blvd.
Routes:
We'll run 20 minutes out and then turn around and run 20 minutes back to Courthouse. Everyone runs at his/her own pace, so the distance will depend on your speed.
1. Courthouse Library > N Rhodes St. Bridge > Arlington Blvd > N Meade St. > Iwo Jima/Marine Corps Mem > Arlington Cemetery > Memorial Bridge. Depending on your preferred pace, you may turn around at any point on the route.
Pace:
All paces are welcome! We'll be doing an out and back route, so everyone will turn around at the halfway time marker. That way we should all start and end at the same time.
Free Parking at Courthouse Plaza:
The underground garage is on Clarendon Blvd btwn Wayne and Veitch Sts. (near Strayer/CVS and the AMC Theater). If the first 2 levels on the left are full, you can park on the lower levels to the right. Street and Surface Parking lots should be free in the area as well.
Metro:
Orange or Silver line to Courthouse Station.
Note: Photos taken during the event may end up on Instagram, Meetup, Strava and similar platforms.
Read & Reflect: A Social Reading Circle.
Shared Pages, Shared Insights.
📚 Do you love reading, but wish you had a structure and a community to share your insights with?
Join our small circle of curious minds (just 4 members per gathering) as we come together for an hour of focused reading—in the calm setting of a library or the cozy atmosphere of a café.
Here’s how it works:
First part: Quiet reading on your own—bring a book you’re exploring, whether it’s philosophy, history, psychology, literature, or anything meaningful to you.
Second part: We regroup and each person shares key takeaways, insights, or questions sparked by their reading. This sparks a structured yet free-flowing conversation around ideas, perspectives, and personal reflections.
Why join?
Add structure to your reading habit.
Discover new books, authors, and ideas through others’ choices.
Build real connections by sharing and listening deeply.
Socialize around something meaningful instead of small talk.
Level 1 Bachata & Salsa Group Classes
7:45 PM – Beginner Bachata
8:30 PM – Beginner Salsa
This Class is for absolute beginner and up.
[Book Your Class Here. ](https://crowndancestudio.com/group-classes/)
Choose the date. then Click "book now."
$18 Per Person for 1 Class $25 Per Person for 2 Classes
Do I need Partner? NO
Is it a Series? No. But we review similar materials on the consistent basic.
Can I drop-in? Yes.
Membership & Class pass available for your better growth and progress.
[www.crowndancestudio.com](https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.crowndancestudio.com%2F%3Ffbclid%3DIwAR2zhtlRxGhExkt_lh7UddK-BeWO8Qs1-EOyoeOGv-J3T0iFQh1Mcj2yiCA_aem_AcwNtPvUfkDahcWu-o_1owBvR7kH5cPtGKRaZN0cwvsy7zAKFAW0zv11GyJZeHFK3sXTqcwkHzYjvnhIdj_bZzn9&h=AT03tOQ7TaMbm8BWrbY5GVWwm5AUCbspa2tH6WSZj2P19MdXsK-Ih8hbVRlM9y0i0DuAMcN1QoF5tRzsQ-8aq-F0hneUu0Qayohk--xGdi4ODLmv7dW1y3B0veXR6xDUMxTNH1ui5a1qQMb1Cw&__tn__=q&c[0]=AT23QwS2XzF8mb_UChFebvxb_ZwrfUwkBaJHK5_0MHCyY9o9eHFqWNQPS2IJpCgWWS7KJfldFCk2N1JPAXQQGplryaicqsu-5Hpj0tsphsZ3balIXhHgvlOSxKBXhiUaH8GLAXguklvbM9QOeUG2qAJKdQJ6)
Address: 2820 Dorr Avenue Fairfax, VA 22031 See less
Vintage Cube at Your Hobby Place - Old Town Alexandria
**NEW UPDATE:** Additional members of the cubing community have reached out to me and we all agree, the more cubing the better! I have removed the 12 person limit and we are adding an overflow cube for those also interested in non vintage type cubes! These guest cubes may consist of the following:
\- Alex's Enchantment Cube: [Enchanted to Meet You](https://cubecobra.com/cube/list/enchantedCube)!
\- Matthew's Avatar cube: [Avatar: The Last Airbender Power(ful) Cube](https://cubecobra.com/cube/list/avatarTLA)
Priority will still fall to firing the vintage cube but what this means is if we reach 12 members we can offer the option to fire both cubes at 6 and 6 or just the vintage cube at 2 pods each. If we reach over 12 we will divide up the players between the two cubes with earlier RSVPs getting priority on their choice.
If you have a cube that you are interested in having as a spill over cube please reach out to me and we can coordinate. Thank you!
Come join and casually draft a vintage cube that is open to everyone. No cost to enter! The store provides promo booster packs and I usually throw in a pack of the most recent standard set to award to the people with the best records at the end of the night. [What is Cube?](https://www.youtube.com/watch?v=rNDBTRG6keM)
What: Vintage Cube Draft
When: 6:00pm
Where: Your Hobby Place in Old Town Alexandria (Your Hobby Place, 700 N Washington St, Alexandria, VA 22314)
We aim to start drafting shortly after 6:00pm as the store's register closes at 9:00pm. The store owner is kind enough to keep the space open for us to finish rounds. In previous events we've usually wrapped up around 9:45. All skill levels are welcome and all cards, lands, tokens needed are provided so you only need to bring yourself and potentially some dice and playmat if you prefer.
The list can be seen here: [https://cubecobra.com/cube/list/proxybacon](https://cubecobra.com/cube/list/proxybacon)
Join Your Hobby Place's Discord and grab the Cube Role in the mtg-chat channel for the most up to date information on cube at their location: [https://discord.gg/9je3G8vzXh](https://discord.gg/9je3G8vzXh)
**Important Notice:**
I have seen an increased number of signups and no shows amongst brand new accounts. In an effort to make sure we have room for everyone if this is your first time joining and you have just created a meetup account please reach out to me via Meetup or discord.
**Late Policy:**
RSVPing will hold your spot for up to 10 minutes after 6. If you expect you may be running late please reach out to me via the store's discord. My username is iluvbacon610.
Mon Night Pickup
Friendly game. No slide tackling, rough play, or coaching. Bring a white and dark colored shirt.
Ideally we will play 10 vs. 10 on half the field, but will split into multiple games if we have numbers.
MapReduce Events This Week
Discover what is happening in the next few days
Your Evals Are Bad: Evaluation and the Model Development Lifecycle
**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
Lot 38 espresso bar in DC
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!
Disaster+Travel+Wilderness First Aid (In-Person) Certification Course
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)
Singles Dinner
Foodies, I was able to secure a good deal for a three course dinner @ $ 32 per person without tax & gratuity! We have three different choices for First and Second Courses; and two choices for Third Course.
First Course Âś(Choice of) :
1. Fire-Roasted Tomato Soup
Served with crouton
2. Beet Salad
Roasted beet with Baby Arugula, blue cheese and spicy walnuts tossed in a cranberry dressing
3. Seared Scallops
Scallops served with cauliflower mousse, golden Raisins & brown butter
ÂťSecond Course (Choice of) :
1. Wild Mushrooms Ravioli
Ravioli staffing with ricotta cheese, Creamy butter Sage sauce and shaved parmesan cheese
2.Pan-Roasted wild Halibut
Halibut served with tri-color quinoa, baby bok choy and roasted tomato relish
3. FLAT IRON STEAK
Grilled Flat Iron served with garlic mash potato wilted broccoli rabe and merlot reduction sauce
Âť
Third Course (Sweet Ending) :
Âś
1. White Chocolate Bread Pudding
Served with warm caramel sauce & vanilla ice cream
2. Lemon Blueberry Crumb Cheesecake
Served with warm caramel and whipped cream
Cuban Salsa/Rueda de Casino Class & Social Dancing
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
ONLINE LIVE- Are you Brighter than a 6th grader? Trivia
**\*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.
MapReduce Events Near You
Connect with your local MapReduce community
DoJo (Informal Python Meeting)
**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
Omnipresent Atheists Weekly Meetup (4th Tues)
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.
ServiceNow Knowledge 26 Recap + Topgolf Happy Hour
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!
In-Person Event: The Answers to Depression & Anxiety
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.
Feel Good Friday: POWER BALLAD at the Gateway Film Center + SHAKE NO. 8!
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
The Power of the Subconscious Mind - Free Lecture
**How to take control of your subconscious and harness its power!**
Join us for an eye-opening lecture where the speaker will break down complex ideas in a clear and practical way.
You’ll gain insights into:
âś… The true definition of the subconscious
âś… How it generates unwanted emotions
âś… Its real purpose and function
âś… What determines the pressure it exerts on you
And the most important topic:
**How do you take control of your subconscious!**
But this isn’t just another lecture where you sit and listen passively. It’s interactive and engaging—you can ask questions at any time.
đź“… Reserve your spot now!
Seats are limited, so don’t wait too long to sign up.
Location: 1266 Dublin Rd, Columbus, OH 43215
Hosted by the Hubbard Dianetics Foundation
COUNT RMH Housewarmer Volunteering (Ronald McDonald House)
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.





























