Big Data

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 :)

***¡¡¡ Pura Vida !!!*** Come alone, leave with friends! This is what Meetup is all about. Being able to join and do what you wanted to do . . just not alone. We are going to Costa Rica for 9 nights/10 days of exploration and tropical adventures. . . . **Best Meetup ever!**! To see how fun it is . . . Here are photos from when we did go before [https://photos.app.goo.gl/cswRyeNZp1r6WW9t9](https://photos.app.goo.gl/cswRyeNZp1r6WW9t9) Costa Rica is a playground for the adventurous and an eco-tourist's dream! It is an unspoiled tropical paradise. * Beautiful beaches * Rainforest biodiversity * Misty volcanoes * Roaring rivers * Lush jungles * Exotic flora and fauna * And more!! **And we are going there to enjoy it, learn about it and make memories of a lifetime!** This event is a true Meetup. We are creating it from scratch, and bringing like-minded people together on this adventure. Along the way making lifelong memories and friendships. Together . . . let’s make a Meetup to remember! * Hike around the base of the Arenal Volcano * Selvatura Zip Line Canopy Tour * Guided visit to Finca Luna Nueva Farm * Caño Negro Refuge Tour/Visit * Rio Frio Wildlife Refuge Boat Tour * Hanging Bridges Walking Tour * Ecotermales Hot Springs * Monteverde Night Walk Tour * Monteverde Cloud Forest Reserve Tour (daytime) * River Floating Tour * Tamarindo Beach * Sunset Sailing * Snorkeling Tour * And more! For a detailed Day By Day itinerary **[Click Here](https://forms.gle/cQdqYw74gAYqphXX8)**[ to fill out our info request form](https://forms.gle/cQdqYw74gAYqphXX8) **Land Tour cost $3350 per person, double occupancy** (we match roommates for those traveling solo, and most of us are doing just that). If you want your own room: **Solo occupancy additional $950** The only way to secure your spot for this meetup is a $300 deposit that is refundable up to 90 days before departure. **[Click here for secure deposit link](https://www.paypal.com/instantcommerce/checkout/24X2UREP9XPKC)** When you make a deposit be sure to fill out this [ATTENDEES FORM](https://docs.google.com/forms/d/11uywUNCIB5ONrpZ-gU_4mk3bvpc4p_nhhL3ewsbkC5A/edit)**.** As we mentioned, . . . the cost is $3350. This is for the "Land" portion only. Airfare is not included. This gives you the flexibility to have a flight with timing that works best for you. Or to use points/miles. I can also help arranging your airfare. To receive an offer, **[CLICK HERE and send me a message.](https://secure.meetup.com/messages/?new_convo=true&member_id=14363992)** **What is Included in this trip:** * **9 Nights hotel accommodation** * **9 breakfasts, 4 lunches, 2 dinners.** * **Meet & Greet at the airport.** * **Pick-up from airport to our hotel, and hotel to airport at the end of the trip** * **Transportation throughout the trip** * **Private naturalist English speaking tour guide** * **All entrance fees and tours mentioned in the itinerary day-by-day description** * **Daily water bottles for the group** * **Hotel and Added Value Tax** Does not include: ***x*** *International Airfare* ***x*** *Meals other than specified* ***x*** *Optional Tours* ***x*** *All items of personal nature (telephone calls, Laundry, room service, etc.)* ***x*** *Tipping for tour guides and drivers* **Want more info?** **[Click Here to fill out our info request form](https://forms.gle/cQdqYw74gAYqphXX8)** **OR** **RSVP to the event with your email to receive additional info.** **OR** **[CLICK HERE to send me a message](https://secure.meetup.com/messages/?new_convo=true&member_id=14363992)** Whatever is easiest for you! *Still have questions?* **We do a Q & A Zoom once a month.** **[CLICK HERE](https://www.meetup.com/moretoexplore/events/296044209/)** for our Q & A Zoom. RSVP on that event to get a reminder for the zoom. [Click here for the ](https://www.meetup.com/moretoexplore/events/305233138/)**[MAIN ](https://www.meetup.com/moretoexplore/events/288444641/)[location of this event on Meetup](https://www.meetup.com/moretoexplore/events/305233138/)** RSVP there to post any discussion and to get notice of any comments and discussions. As well as any updates and reminders **We believe in good decent social.** **SOT 2000318-10** **[Click Here to see all our other events](https://www.meetup.com/CulturalArts/Events)**

**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

**ProductTank NoVA is back!** After a brief hiatus, we are relaunching the chapter with a format that cuts out the fluff and gets straight to the reality of building. Every product feed is flooded with AI hype right now, but what does it actually look like on the ground? Instead of a polished keynote, we are hosting **0 to 1 with AI: Real Product Talks**—a "Show & Tell" featuring 3–4 lightning talks focused on the intersection of AI and product. The framing for the talks is simple: *"Here is what I'm building, and here is what I'm stuck on."* We want to look at the messy, 0-to-1 reality of integrating AI into your workflows and products. *(Want to share what you are working on? Reach out! The bar is low-pressure, just 10–12 minutes to talk about a real AI problem you are trying to solve.)* **Agenda:** * **5:30 PM - 6:00 PM:** Doors open, networking, & name tags * **6:00 PM - 6:10 PM:** Welcome + Chapter Relaunch Intro * **6:10 PM - 7:30 PM:** Lightning Talks (Three 12-min talks + 5 mins Q&A each, with a 5-min stretch break) * **7:30 PM - 8:00 PM:** Open networking * **8:00 PM:** Soft close **Location & Logistics:** Herndon Fortnightly Library (Extended Hours Meeting Room) 768 Center St, Herndon, VA 20170 * **Parking:** We'll meet at the library, located just behind the Herndon Municipal Center. There is plenty of free public parking available around the municipal center. * **Metro & Bus:** Take the Silver Line to Herndon Metro Station, then connect via Fairfax Connector Route 921 or 950 to Historic Downtown Herndon. * **Driving (via VA-267/Dulles Toll Rd):** Take Exit 10 North (Centreville Rd, which becomes Elden St). Turn left onto Station St or Lynn St. * **Driving (via VA-286/Fairfax Co Pkwy):** Take the Elden St West exit. Turn right onto Lynn St. Looking forward to seeing everyone again and getting back to building!

PyData London 2026 brings together data scientists, engineers, and researchers from around the world for three days of insightful talks, tutorials, and community connection. Hosted in one of Europe’s leading tech hubs, the event highlights the latest developments in Python, machine learning, and data science. Attendees can expect a mix of cutting-edge research, real-world applications, and opportunities to network with industry leaders. Whether you're a beginner or an expert, PyData London offers something for every level of the data science community. **THIS IS NOT A TICKET- TICKETS MUST BE PURCHASED ON CONFERENCE WEBSITE.** https://pydata.org/london2026

Our first Technoverts meetup had a great turnout, so we're doing it again, this time with an optional conversation theme: **How people are actually using AI in everyday work and life**. This is not a panel or presentation, and I do not have a fixed agenda, it's just a relaxed coffee conversation for people in tech (or tech-adjacent fields) who are curious about practical AI use cases, useful tools, workflow hacks, weird experiments, and what's generally helping people right now. *Topics might include:* * AI tools people actually use at work * Productivity and automation * Prompting successes and failures * Writing, coding, research, analytics and creative use cases * What feels overhyped vs. genuinely useful. No expertise is required. It's completely fine to come mostly curious, skeptical, or just interested in meeting thoughtful people in tech. *What to expect:* * Low pressure conversation * A mix of tech talk and normal conversation Location: (Subject to change as I do more research) High Point Pub Tyson's Whole Foods, 1635 Boro Pl. (This is the cafe space on the second floor of the Whole Foods at the Boro, Tysons. Parking is free in the garage with validation). Time: 11 am (this is when the cafe opens). Everyone covers their own coffee/snacks. I'll arrive early and grab a table and will post details about location in the event discussion. Address: 1635 Boro Pl. Whole Foods 2nd Floor Cafe

## **1 Million Cups Loudoun – Resource Presentation** **What You Really Need to Know from an HR Professional** **Presented by Donna Giarratana** **Wednesday\, May 27 \| 9:00 AM – 10:00 AM** **Venture X Loudoun** Join us for a practical and insightful resource presentation designed to help small business owners navigate one of the most critical — and often overlooked — areas of growth: **Human Resources**. *** ## **About the Session** As your business grows, so do the complexities of managing people, processes, and compliance. Many entrepreneurs wait too long to think about HR — and by the time they do, they’re already reacting instead of planning. In this session, **Donna Giarratana** will break down what small business owners *really* need to know about HR — in a way that is clear, actionable, and relevant to your stage of growth. This conversation is designed to help you move from uncertainty to confidence when it comes to building and managing your team. *** ## **What You’ll Learn** * When it’s the right time to hire * How to set your business up for success before bringing on employees * Why HR matters — even for small businesses * Common pitfalls and how to avoid them * The foundational HR knowledge every business owner should have *** ## **Who Should Attend** * Entrepreneurs preparing to hire their first employee * Small business owners currently managing a team * Founders looking to strengthen operations and compliance * Anyone who wants to build a business with a strong, scalable foundation *** ## **Why Attend?** * Gain clarity on one of the most important aspects of business growth * Learn how to avoid costly mistakes before they happen * Ask questions and get real-world insight from an HR professional * Walk away with practical knowledge you can apply immediately *** ## **About 1 Million Cups** 1 Million Cups is a national program that brings entrepreneurs and communities together to learn, connect, and grow through presentations and discussion. Loudoun’s chapter meets on the 2nd and 4th Wednesdays each month. Join us on **May 27** for coffee, connection, and a conversation that will help you build your business the right way from the inside out. We look forward to seeing you there.