Big Data & Hadoop
Meet other local people interested in Big Data & Hadoop: share experiences, inspire and encourage each other! Join a Big Data & Hadoop group.
28,590
members
27
groups
Largest Big Data & Hadoop groups
Newest Big Data & Hadoop groups
Frequently Asked Questions
Yes! Check out big data & hadoop events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the big data & hadoop events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find big data & hadoop events near your location here. Connect with your local community and discover events within your area.
Big Data & Hadoop Events Today
Join in-person Big Data & Hadoop events happening right now
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 Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code.
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
Bachata Dance Classes: Beginner and Intermediate (Every Monday)
**โ
Bachata Mondays with Todd Smith!**
**๐ Beginner Bachata Class**
**$15 In Advance / $20 At the Door**
7:00 pm โ 7:15 pm โฆ Registration
7:15 pm โ 8:15 pm โฆ Beginner Class
**๐ Intermediate Bachata Class**
**= $15 In Advance / $20 At the Door**
8:15 pm โ 8:30 pm Registration
8:30 pm โ 9:30 pm Intermediate Class
**๐ If You Take Both Bachata Classes**
**= $25 In Advance / $35 At the Door**
**๐ Buy Advance Tickets Now at:**
https://columbussalsadancing.com/bachata-mondays-dance-class-tickets/
Beginner and Intermediate Bachata Dance Classes with Todd Smith!
**โ
Bachata Mondays with Todd Smith!**
**๐ Beginner Bachata Class**
**$15 In Advance / $20 At the Door**
7:00 pm โ 7:15 pm โฆ Registration
7:15 pm โ 8:15 pm โฆ Beginner Class
**๐ Intermediate Bachata Class**
**= $15 In Advance / $20 At the Door**
8:15 pm โ 8:30 pm Registration
8:30 pm โ 9:30 pm Intermediate Class
**๐ If You Take Both Bachata Classes**
**= $25 In Advance / $35 At the Door**
**๐ Buy Advance Tickets Now at:**
https://columbussalsadancing.com/bachata-mondays-dance-class-tickets/
Beginner and Intermediate Bachata Dance Classes with Todd Smith!
**โ
Bachata Mondays with Todd Smith!**
**๐ Beginner Bachata Class**
**$15 In Advance / $20 At the Door**
.
7:00 pm โ 7:15 pm โฆ Registration
7:15 pm โ 8:15 pm โฆ Beginner Class
.
**๐ Intermediate Bachata Class**
**= $15 In Advance / $20 At the Door**
.
8:15 pm โ 8:30 pm Registration
8:30 pm โ 9:30 pm Intermediate Class
.
**๐ If You Take Both Bachata Classes**
**= $25 In Advance / $35 At the Door**
.
**๐ Buy Advance Tickets Now at:**
.
https://columbussalsadancing.com/bachata-mondays-dance-class-tickets/
CONNECTED Westerville Mastermind Group
Join the CONNECTED Westerville Mastermind Group for a dynamic afternoon of B2B networking! This event is perfect for professionals looking to expand their business connections, share insights, and foster collaboration within the community. Whether you are a seasoned entrepreneur or just starting out, this event offers a valuable opportunity to exchange ideas, build relationships, and grow your network in a supportive environment. Connect with like-minded individuals, explore potential partnerships, and discover new opportunities for professional growth. Don't miss out on this chance to enhance your business network and take your career to the next level with CONNECTED Westerville Mastermind Group! We meet the 4th Monday of every month from 11am-1pm. Welcome and general networking from 11am - 11:30am with core meeting 11;30 - 12:30 and a final round of networking from 12:30 - 1pm.
Libera Animae - Freeing the Soul
Main Library, Meeting Room 2B
Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. Weโll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen).
Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection.
All backgrounds are welcome.
Big Data & Hadoop 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
Level One Tuesdays (Bachata & Salsa Dance Lessons)
Click Here For More Videos:
https://www.facebook.com/share/r/17bwkttXhV/
***********************************
Salsamante Dance Academy will be at Swerve Every Tuesday Night to share the Rhythm & Energy of Bachata & Salsa.
These are Beginner Level lessons to get you comfortable and understand the two dances. Spread the Good News to all.
Swerve Dance & Fitness Complex
640 Lakeview Plaza Blvd A, Worthington, OH 43085
Bachata 7pm-8pm
Salsa 8pm-9pm
$15 - One Lesson
$20 - Both Lessons
Red, White & BOOM: A Black Love Summer Social
๐บ๐ธ Red, White & BOOM: A Black Love Summer Social โค๏ธ
Skip the downtown chaos and celebrate with great people instead!
Join Black Love & Friends as we spend the evening together in the beautiful, historic King-Lincoln District, just steps from Mayme Moore Park, with an incredible view of the Red, White & BOOM fireworks.
This isn't a formal eventโit's a relaxed summer gathering.
Come early or stop by later. Stay for an hour or stay all evening. We'll have our own private meetup space where you can kick back, meet new people, play a few games, enjoy light refreshments, and simply enjoy the holiday together.
Throughout the evening we'll explore the King-Lincoln District, soak up the atmosphere, laugh, connect, and then settle in as the Columbus skyline lights up with one of the biggest fireworks shows of the year.
โจ What to expect:
๐ Great views of the Red, White & BOOM fireworks
๐๏ธ Historic King-Lincoln District
โบ Private Black Love & Friends meetup tent
๐ฒ Lawn games & conversation
๐ฅค Light refreshments
๐ค New friends & great vibes
๐ธ Perfect summer photo opportunities
Event begins: 6:30 PM
Fireworks begin later in the evening, so arrive whenever works for you. Feel free to come and go throughout the night.
โ ๏ธ RSVP is required. Space at our tent is limited, so we'll only be able to accommodate those who register in advance.
Bring a chair if you'd like, wear your favorite red, white, and blue, and come celebrate community, connection, and summer with Black Love & Friends.
Good people. Great conversations. Amazing fireworks.
Columbus Medical Marijuana Meetup 6/30/26 - Network/Learn/Celebrate/Mix/Chill
Our next much-awaited **COLUMBUS** meetup is **Tuesday June 30th from 7-10 pm EST at ACE OF CUPS**. Meet patients, cultivators, processors, dispensary managers/staff, physicians, home growers, educators, activists, nonprofits, artists, attorneys, business owners, writers, students, and supporters to network, share our knowledge, collaborate, support each other and make new ones!
Hope you will be there too! Save the date and pass the word. **Please RSVP** so we know who is coming and how many to expect.
Find us to say hi and we will introduce you to others. We should be easy to spot. (The happy-looking group wearing cool nametags! See photos from our past events.) Sign in, grab a name tag, start your own bar/food tab, meet old friends and make new ones! Everyone is welcome. SEE YOU THERE!
๐ Lincoln Street Salsa Saturdays! ๐ Salsa, Bachata, and Merengue Dancing! ๐
**๐ฅ Lincoln Street Salsa HAS MOVED TO EVERY FRIDAY, NO MORE SATURDAYS!**
**๐ฅ Lincoln Street Salsa @ 1717 Brice Rd, Reynoldsburg 43068**
**๐ฅ Salsa, Bachata, Merengue Dancing!**
**๐ฅ NO PARTNER OR EXPERIENCE NEEDED!**
**๐ฅ Every FRIDAY, 8 pm - 1 am**
**๐ฅ 8:00 pm - 8:30 pm = Registration**
**๐ฅ 8:30 pm - 9:30 pm = Beginner Dance Class**
**๐ฅ 9:30 pm - 1:00 am = Open Dance Party**
**๐ฅ LincolnStreetSalsa.com**
**๐ฅ Questions? Text Todd 614-774-8146**
Big Data & Hadoop Events Near You
Connect with your local Big Data & Hadoop community
Data & Analytics Wednesday - Learning from Everyday Data
**Practical Curiosity: Learning from Everyday Data**
How do we actually get better at utilizing our day-to-day data? Fancy dashboards and complex models might look nice and draw attention, but thatโs not where most of us spend our time. In fact those shiny outputs frequently sit unused, while the real insights are drawn from the analystโs daily practice.
Sometimes itโs as simple and as powerful as noticing that a segment is shrinking, a channel is underused, or certain links keep getting all the clicks. Thereโs many different places that the spark of insight can come from, but you have to keep your head in the data and know where to look.
In this session, weโll explore real-world examples of how segmentation, testing, and click behavior can uncover practical digital marketing opportunities. Youโll leave with inspiration for your own use cases, along with a few simple ways to ask better questions, spot meaningful patterns, and make smarter decisions without overcomplicating it.
**About Our Speaker:**
[Elaine Armbruster](https://www.linkedin.com/in/elainearmbruster/) is a Director of Digital Experience at the [American Diabetes Association](https://diabetes.org/), where she focuses on using data and insights to create smarter, more effective digital experiences. A lifelong Columbus resident, she has built her career in email marketing and the broader digital user journey, and is finding she most enjoys working in the messy middle where systems, data, and big ideas donโt quite line up yet.
Thanks to our 2026 sponsors:
[Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro)
More info at [cbusdaw.com](https://cbusdaw.com)
Azure CBUS July
Want to be a speaker? submit your talk to our Call for Presenters!!!
https://sessionize.com/azure-cbus-2026/
ServiceNow AI Deep Dive: Hands-On Learning Session
We're planning a hands-on technical session focused on building AI solutions in ServiceNow - think skills, agents, and real-world use cases. If youโre curious about AI on the platform, RSVP now and stay tuned for more details. Let's build together!
Columbus PHP: Monthly Meetup
Our monthly PHP meetup.
A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm
IxDA Chat n Pancakes
You can sleep in on the Sesquicentennial (observed), weโre shifting to the following Friday.
But join the local UX community for a chat and some biscuits to catch up. If you were in CA for Figma Config, tell us all the lines and you can tell me how I can animate an SVG without coding it by hand, and why Iโd even want to.
Thanks to the team at Nationwide of supporting the group.
Cocoaheads
We have moved to guild.host. Look us up there.
https://guild.host/events/buckeye-cocoaheads-rcavwd
Stop Guessing: How to Measure and Improve LLM Outputs
Most people use LLMs by feel: ask a question, read the answer, decide whether it โseems good,โ and move on.
That works for casual use. It does not work when you are building software, automating workflows, writing important documents, or relying on AI for anything that needs to be repeatable.
In this talk, weโll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. Weโll cover how prompt changes affect results, how to compare outputs, how to build simple evaluation sets, and how math-based methods like similarity scoring can help you move beyond guesswork.
This will be beginner-friendly, so even if you don't know anything about AI, you should get something out of it. However, this will be a little more technical than our intro talks. You do not need to be an AI researcher, but programmers and technically curious attendees will get a lot out of it.
Weโll cover:
* Why โit looks goodโ is not enough
* How to improve prompts by changing the input, context, and constraints
* How to compare LLM outputs more systematically
* Basic evaluation techniques for accuracy, consistency, and usefulness
* How embeddings, cosine similarity, and scoring can help evaluate results
* Where automated evaluation works โ and where humans still need to stay in the loop
By the end, youโll have a practical mental model for treating LLMs less like magic and more like systems you can test, measure, and improve.
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.




























