Big Data
Meet other local people interested in Big Data: share experiences, inspire and encourage each other! Join a Big Data group.
10,290
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9
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Largest Big Data groups
Newest Big Data groups
Women in Big Data, Inc - North Carolina Chapter
46 Members
East Bay Apache Kafka Meetup® by Confluent
278 Streamers
Chicago Analytics and Data Science in the Cloud
1,199 Members
LA Practical Data Mining & Analytics
245 data-driven decision-drivers
Chicago Booth Big Data & Analytics Roundtable
4,102 Strategic Data/Analytics Users
Data, Cloud and AI in Indianapolis
1,298 Members
Frequently Asked Questions
Yes! Check out big data 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 events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find big data events near your location here. Connect with your local community and discover events within your area.
Big Data Events Today
Join in-person Big Data events happening right now
Doubles Volleyball, BB+ Level @ Bluemont
Let's get together to play some fun BB level Double games at Bluemont.
**Format**: Doubles
**COST**: FREE
**Court Type**: Outdoor grass
**Minimum Skill Requirements**: Intermediate-BB (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details)
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**Smiley Social documents:**
1. [Group Rules ](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg)
1. [Liability Waiver ](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco)
1. [Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/)
Little City Write-In!
Join us for another optional writing session! Feel free to bring a project you're already working on or start something new with us.
If anything interesting comes up while you're writing, you can share it with the group, but no pressure!
Big Devils Stairs (Rating: A)
You must read the following NVHC Sign-in Sheet Statement/Liability Disclaimer, [https://nvhc.com/signin.pdf](https://nvhc.com/signin.pdf) and then answer the question that you will see when you RSVP with "I accept" to be permitted on the hike.
This is a 10 mile hike from the boundary of SNP to a spectacular gorge. It has an elevation gain of about 2200 feet. This hike is rated A for difficulty. We start at a small parking area along Rt 625 at the Mount Marshall Trailhead. We immediately start climbing. We make a left on the Bluff Trail. Then we descend to the overlook on the Big Devils Stairs Trail for a snack/lunch before retracing our steps back to the cars.
Leader: Maryellen Trevisan 202-730-5314 (C)
Rating: A
Pace: 2.5 to 3.3mph
Carpools: Meet at the Centreville Park and Ride at 7:15am to depart by 7:30am. Suggested carpool fee is $6. The leader will not be at the carpool location. GPS Coordinates: 38.836038, -77.455371
https://goo.gl/maps/UhxfSAbcao4mCWC96
Meet at the Mount Marshall Trailhead at 8:45am. GPS Coordinates: 38.7478506,-78.1940236
[https://goo.gl/maps/VvgSpAddeyUPJXCy9](https://goo.gl/maps/VvgSpAddeyUPJXCy9)
Neither the Club nor the hike leaders are responsible for coordinating transportation to/from the trailhead. Hikers are not guaranteed to get a ride to the trailhead from the carpool location. Carpooling is organized by the participants and they participate at their own risk.
Park Entry Fee: $0.
Map for hike: Big Devils Stairs on AllTrails:
[https://www.alltrails.com/explore/custom-routes/custom-route-14687c8?u=i&sh=rr7xq6](https://www.alltrails.com/explore/custom-routes/custom-route-14687c8?u=i&sh=rr7xq6)
Driving time to trail head: 1 hour 15 minutes
**You must be experienced in hikes of this distance and elevation gain.**
Open Bar & Seminar (Free but RSVP required)
After hosting successful events, I always think that we could have done better and relate it to our day to day life and make it educational. In this connection, I wanted to show off my investment and trade hat and organize series of Happy Hours around Investment & Trade.
We will have speakers from different sectors and industries, at each Happy Hour. At this particular event, the speakers will discuss retirement savings with an overview of annuities and how they can be used in retirement.
Topics will include:
* Today’s retirement savings challenges and approaches
* Sources of income in retirement
* Annuities and how they can be utilized for retirement savings and income
• RSVP is required.
The address will be sent to members who RSVPed, before the Event.
Enjoy!
World Soccer France vs Sweden
FREE ADMISSION!!! Join us at the Arlington Drafthouse for France vs Sweden! Drink specials and a big screen!!! \*Due to the popularity of this event, if you reserve you have a seat until the whistle blows! Please arrive early for prompt service\* 21 and Over unless with parent/guardian
Movie Outing
Amici,
Time to show off my Polyglot's hat, particularly the Italian one. The winning of The Great Beauty (La grande bellezza), at this years Oscar is a sign of Italian cinema is back.
Another Italian film with a winning potential will be screened at West End Cinema. Let us check it out!
It has an English subtitle and you don't need to speak Italian and feel free to invite friends and family.
Ci vediamo allora!
http://www.youtube.com/watch?v=kSmAoJfJxYU
Miele is the story of Irene a 30 years old girl who helps suffering people.Terminal patients who want to make shorter the struggle with death, people whose suffering injure the dignity of an human being. One day a 70 years old man in good health, who simply thinks to have lived enough, asks her to help him. The meeting will put to the test Irene’s convictions. It will open a stringent debate between the two.
Their relation becomes more and more full of implications and emotional ambiguities.
96 min. • R • Dir. Valeria Golino • In Italian with English subtitles
Big Data Events This Week
Discover what is happening in the next few days
Post AWS DC Summit: Meet the Community Evening
Join us for a special post-AWS DC Summit **“Meet the Community” evening** with **AWS DMV User Group** with special guest, AWS Principal Developer Advocate, Aaron Hunter!
This casual networking session is a great way to connect with fellow builders, cloud enthusiasts, and AWS community members after the AWS DC Summit. Whether you’re a student, developer, architect, or just curious about cloud, this is a perfect space to meet like-minded people, exchange ideas, and grow your network.
Expect light conversations, meaningful connections, and a relaxed atmosphere as we bring the community together after the big event.
📅 **Date:** July 2, 2026
🕠 **Time:** 5:00 PM – 8:30 PM
📍 **Venue:** Amazon HQ2, WAS19 2.103 + 2.104. 525 14th St S, Arlington, VA 22202
Looking forward to seeing everyone there and discussing the summit with great energy and conversations! Please RSVP with the same name as is on your state-issued ID, which will be required to check in at security.
Learn all things Data Science and Compete on Kaggle
We will be meeting at Starbucks to learn together. Come with an online class you're already going through or an interest and we will try to connect you with a course where you can learn it. Already have a skill you want to contribute to a Kaggle Datascience competition? We will work on these too! Laptop required :)
Cruise: All-inclusive. Royal Caribbean. Bermuda.
Social Sips & Bites is setting sail in style! 🚢✨
Join us for an unforgettable escape filled with ocean views, elegant evenings, and island indulgence. The Bermuda await.
Exciting updates coming soon—keep an eye out!
6 Miles Hiking In Arlington
We will start at the Four Mile Run Trail Parking Area in Bluemont Park, follow the Four Mile Run Trail to Columbia Pike, then return and take the Lubber Run Trail to complete a 6-mile loop
Exact location to meet
[https://goo.gl/maps/mdHTq7ucwKdBpAH4](https://goo.gl/maps/mdHTq7ucwKdBpAH46)
Cost: Free
Walking speed: 2.5 -3 mph
Note:
We start on time, so please arrive early or on time to join the group
Dinner:
At the end of the walk, we’ll take a vote for dinner. If more than 5 people choose to join, we’ll go to dinner, otherwise, we’ll skip dinner
The DMV’s Biggest Outdoor Event . Great Falls Park Hike. FREE ENTRY DAY
TRADING THE DANCE FLOOR FOR THE TRAILS
The disco lights are taking a breather, but Social Sips & Bites is keeping the high energy alive in the great outdoors. We are hitting the trails, and the timing couldn't be better.
National Park Service is waiving its usual vehicle entrance fees for Free Entry Day, so we’re bringing the whole DMV community together for an epic morning of fresh air, jaw-dropping views, and massive group vibes.
Whether you’re recovering from the last party or prepping for the next one, this is the perfect excuse to get outside, move your feet, and meet some incredible people.
From the rushing waters of the Potomac to the winding, shaded dirt paths, this isn't just a walk in the park. It’s a chance to unplug, swap stories with familiar faces, and explore one of the absolute best natural wonders right in our backyard.
No RSVP cap, no exclusive guest list. Just good people, great views, and unmatched Sunday energy.
See you on the trail! 🙌
On https://blackecon101.podbean.com/ every Thursday at 6 pm
• What we'll do
On https://blackecon101.podbean.com/ Thursdays at 6 pm. discussing the economy....
Big Data Events Near You
Connect with your local Big Data 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 that’s not where most of us spend our time. In fact those shiny outputs frequently sit unused, while the real insights are drawn from the analyst’s daily practice.
Sometimes it’s as simple and as powerful as noticing that a segment is shrinking, a channel is underused, or certain links keep getting all the clicks. There’s 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, we’ll explore real-world examples of how segmentation, testing, and click behavior can uncover practical digital marketing opportunities. You’ll 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 don’t 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)
Stop Guessing: How to Measure and Improve LLM Outputs
Most people use LLMs by feel: ask a question, read the answer, decide whether it “seems good,” 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, we’ll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. We’ll 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.
We’ll cover:
* Why “it looks good” 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 — and where humans still need to stay in the loop
By the end, you’ll 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.
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
IxDA Chat n Pancakes
You can sleep in on the Sesquicentennial (observed), we’re 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 I’d even want to.
Thanks to the team at Nationwide of supporting the group.
Level One Tuesdays (Bachata & Salsa Dance Lessons)
Click Here For More Videos:
https://www.facebook.com/share/r/17bwkttXhV/
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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
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 you’re curious about AI on the platform, RSVP now and stay tuned for more details. Let's build together!





























