MapReduce
Meet other local people interested in MapReduce: share experiences, inspire and encourage each other! Join a MapReduce group.
224,218
members
104
groups
Largest MapReduce groups
Newest MapReduce groups
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
Omnipresent Atheists Weekly Meetup (1st 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.
Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'!
Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life.
Mission: grow, support, and provide community for atheists in Central Ohio.
Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision.
Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge.
Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ).
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.
Data Cleansing using Data Bricks
The May Ohio North Database Training user group meeting will be held on **May 5th, 2026 at 5:00PM**. This will be a **HYBRID** event and we will be joined in person by **Sam Nasr.**
You're welcome to come meet in-person at our meeting location, the offices of Improving at
**[6000 Freedom Square Dr,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)**
**[Unit 110,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)**
**[Independence, OH 44131](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)**
[Teams Link ](https://teams.microsoft.com/meet/287759659366576?p=kCaammjECnUCvZzEJv)if anyone needs it after RSVP-ing for in person.
If you would like to subscribe to our email list outside of Meetup, we have changed platforms recently and you will need to register [here in Kit ](https://ohio-north-data-training.kit.com/b8f036f615)instead to receive emails.
Agenda:
**5:00 PM EST**: Online and in-person meeting begins with a social hour. This is an unstructured hour where you can join us to catch up and meet other group members before the session starts. There will be food brought in for in-person attendees.
**6:00 PM EST**: Elections, announcements, followed by our feature presentation. See below for presentation details.
**7:30 PM EST**: Optionally after the main presentations, the in-person crowd may go out for snacks and drinks at a local establishment.
We hope to see you there!
Session Abstract
### Data Cleansing using Data Bricks
Machine Learning is highly dependent on adequate data. Not only does quantity matter, but more importantly quality. In this session we’ll cover how to build a custom automated process using Data Bricks. This will provide methods for cleaning data in a data lake using functions in Azure.
\*Please note, that we will be using Microsoft Teams for the online portion of this meeting. You may want to join a few minutes early to ensure you do not have any issues. If you are attending in person, there are large TVs at the office, and you do not need to bring a laptop or use Teams.
Central Ohio Real Estate Investing Expo
(Note: RSVPing here on meetup does NOT reserve your seat. To do that, you’ll need to register at our website, [HERE](https://www.coreerocks.com/Events.aspx?ID=2026-Central-Ohio-Real-Estate-Investing-Expo-14-5-5-2026).)
We’re serious about helping you succeed in real estate.
That means not just teaching you—but putting you in the room with the people who help you get deals done.
Every deal depends on people.
The agent or wholesaler.
The lender.
The contractor.
The title company.
The insurance agent.
The problem is that most investors meet those people slowly.
This event fixes that.
One room full of:
• Lenders
• Contractors
• Title companies
• Insurance providers
• Property managers
• And active local investors
A place where you can:
• Build your team
• Find funding
• Solve real problems
• Make connections that lead to deals
If you’re serious about real estate, this is a smart room to be in.
Members and non-members at any level of knowledge and experience are welcome.
This event is free.
Remember, to actually reserve your seat, you have to go [HERE](https://www.coreerocks.com/Events.aspx?ID=2026-Central-Ohio-Real-Estate-Investing-Expo-14-5-5-2026) and register on our website!
Central Ohio Radio Enthusiasts - Radio Signal Analysis Using SDRs and OpenWebRX+
Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected.
This month we have **Radio Signal Analysis Using SDRs and OpenWebRX+**
with **Scott McCrory**.
Details are are [core.radio](https://core.radio/).
Vision Loss Support Group: Discussion of Ohio Theatre Tour
This meeting will be a discussion about a proposed tour of the Ohio Theatre led by Mary Cecil, Tour Coordinator of the Ohio Theatre and Jane Ehrenfeld, Audio Describer.
We will try to connect for a Conference Call option at (518) 263-8851.
MapReduce Events This Week
Discover what is happening in the next few days
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
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.
Burnaby Zoom Speed Dating For Introverts
🕊️ **Finally, Speed Dating Worth Showing Up For — Burnaby Singles on Zoom**
Great for anyone a little shy, anyone brand new to speed dating, and anyone who's simply decided they want more than what the apps have been offering.
The people who show up are after genuine connection. Long-term. Something they can actually feel proud of. Not another situationship that goes nowhere.
Runs entirely on Zoom. Private one-on-one rounds with Burnaby locals who are in your age range. No venue, no dress code, no awkwardness.
**Pick your age group and grab your spot:**
- Ages 18-32: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Burnaby&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=18-32&face_v=3.0)
- Ages 30-46: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Burnaby&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=30-46&face_v=3.0)
- Ages 40-58: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Burnaby&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=40-58&face_v=3.0)
- Ages 55+: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Burnaby&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=55+&face_v=3.0)
⚠️ RSVPing here does not hold your place. You must register through the link above and complete the short personality quiz to be confirmed.
---
**Your three steps:**
1. Follow the link for your age group, complete the registration, and answer the personality quiz.
2. At event time, open your Zoom link. Any device works — phone, tablet, laptop.
3. Chat one-on-one with Burnaby locals in timed rounds — matched by age, guided by a host.
4. Mutual matches are revealed after the event — reach out when you're ready.
This isn't a numbers game. It's a room of real people — kept deliberately small — all hoping for the same thing you are.
Vancouver Discover Local Singles From Home
🌸 **Online Speed Dating — Built for Vancouver Singles Who Mean It**
If you're someone who's been holding back — maybe you're a bit introverted, maybe you've never tried speed dating, or maybe you just haven't found the right setting — this is that setting.
The people who show up are after genuine connection. Long-term. Something they can actually feel proud of. Not another situationship that goes nowhere.
Everything runs on Zoom. You'll meet Vancouver locals in quick private rounds, matched by age. It fits in an evening and you never have to leave home.
**Pick your age group and grab your spot:**
- Ages 18-32: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Vancouver&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=18-32&face_v=3.0)
- Ages 30-46: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Vancouver&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=30-46&face_v=3.0)
- Ages 40-58: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Vancouver&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=40-58&face_v=3.0)
- Ages 55+: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Vancouver&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=55+&face_v=3.0)
📌 Note: this RSVP alone doesn't secure your seat. Use the link above to complete registration and the personality questionnaire.
---
**Here's what to do:**
1. Register through your age group link and answer a few quick personality questions.
2. Join the Zoom at the event time — no app downloads needed, works on any device.
3. Go through a series of short private rounds with age-matched Vancouver singles, all guided by a friendly host.
4. Once it's over, you'll find out who felt the same — then it's yours to take forward.
Groups are small on purpose. That's what makes it work. If you're ready to take this seriously, here's your chance.
Richmond Create Connections From Your Couch
🕊️ **Speed Dating for Richmond Singles Who Want the Real Thing**
You don't need to be outgoing. You don't need experience. You just need to be curious, open, and genuinely interested in meeting someone worth keeping around.
These are people who've decided casual isn't cutting it anymore. They want depth. They want honesty. They want someone who actually shows up.
Live on Zoom from wherever you are. Short rounds, real people, all local to Richmond. Matched by age so conversations actually go somewhere.
**Choose your age bracket to claim your place:**
- Ages 18-32: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Richmond&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=18-32&face_v=3.0)
- Ages 30-46: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Richmond&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=30-46&face_v=3.0)
- Ages 40-58: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Richmond&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=40-58&face_v=3.0)
- Ages 55+: [Register Here](https://tempodating.com/product?productId=481.0&productType=onlineSpeedDating&city=Richmond&groupurlname=serious-hearts-finding-meaning-through-brunch&ar=55+&face_v=3.0)
📌 Note: this RSVP alone doesn't secure your seat. Use the link above to complete registration and the personality questionnaire.
---
**Your three steps:**
1. Follow the link for your age group, complete the registration, and answer the personality quiz.
2. Log into Zoom when the event starts. Works in browser, no downloads required.
3. Go through a series of short private rounds with age-matched Richmond singles, all guided by a friendly host.
4. Once it's over, you'll find out who felt the same — then it's yours to take forward.
Small groups. Real rounds. Actual chemistry. If finding someone meaningful matters to you, this is the most direct path there.
COUNT Discussion Meeting: Topic: Current Events
We may pick a specific topic and post in advance or may discuss current events and various ad hoc topics . We would love to spend time hanging out and getting to know one another.
Atheist, agnostics, other non-theists, and atheist-friendly people are welcome to join us.
Note: COUNT operates a Facebook page at www.facebook.com/groups/COUNT.discussions (http://www.facebook.com/groups/COUNT.discussions/) to promote discussions among members and visitors.
MapReduce Events Near You
Connect with your local MapReduce community
Building Scalable Customer Identity Resolution Pipelines on AWS Using AI
Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs.
This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context.
We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing.
**SPEAKER BIO**
Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments.
https://www.linkedin.com/in/mosaic-basha-syed-92300856
**CALL FOR SPEAKERS**
Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/)
**THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/)
**DIRECTIONS**
8800 Lyra Dr #450 · Columbus, OH
go to 4th floor.
**Want to sponsor the pizza and/or bar tab?**
Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com
Omnipresent Atheists Weekly Meetup (2nd 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.
***
Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'!
Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life.
Mission: grow, support, and provide community for atheists in Central Ohio.
Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision.
Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge.
Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ).
CBusData - Practical AI for Power BI Developers
Practical AI for Power BI Developers
A year ago, “agentic AI” was mostly hype for Power BI teams. Today, it deserves your undivided attention. For Power BI pros, there is now a real opportunity to reduce repetitive development work, accelerate delivery, and help developers do more, but only when strong DataOps practices are in place to make AI workflows effective.
This session is a no-nonsense introduction to effective AI patterns for Power BI and Fabric development. Along the way, we will make sense of the growing pile of terminology, including skills, plugins, hooks, and MCP. You will see examples of how modern AI tooling can help with development tasks across Power BI and Fabric, along with the prerequisites, guardrails, and DataOps principles needed to use it responsibly.
Whether you're burned out on AI hype or already using Copilot CLI daily, this session will show you the foundations that are finally making AI-assisted development genuinely useful.
COhPy Monthly Meeting
**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: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades.
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
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.
LLM Showdown: ChatGPT vs Claude vs Gemini vs Local Models
Join us for a practical, beginner-friendly guide to choosing the right large language model. We’ll compare major models like ChatGPT, Claude, Gemini, and Llama, talk about when to use hosted APIs versus local models, and break down the tradeoffs around cost, speed, quality, privacy, context windows, coding ability, and reliability.
You’ll leave with a clearer mental model for picking an LLM based on your actual use case instead of hype, benchmarks, or brand names. No deep AI background required.
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.
Building Agents with Microsoft Agent Framework
We will show how to build custom agents with Microsoft Agent Framework. Attendees will learn how to build and custom host agents when Microsoft Foundry is not a viable option.




























