Data Mining

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.

**We'll have two meetings covering AI - this second one is for Positron** We will review which AI features are linked in for Positron, and how to use them. **Location:** The meetup will be at SPARK's ([https://annarborusa.org/](https://annarborusa.org/)) Ann Arbor site: [SPARK HQ (Ann Arbor)](https://urldefense.com/v3/__https://www.google.com/maps/place/Ann*Arbor*SPARK*Headquarters/@42.2792515,-83.7447708,17z/data=!3m1!4b1!4m5!3m4!1s0x883cae3effe193cb:0x5296a53db2a282bf!8m2!3d42.2792515!4d-83.7447708?hl=en-US__;Kysr!!HXCxUKc!3EEdBNXRJKknP6LCGkZetSuEsdtChFojQnOVitFUC5C0fyilqXEbiMstT9ajBR3Cw-55qoFkrElCjQvjMdTxUw$). There is on street parking, and parking at local structures. **This will be a hybrid meeting - the Zoom session starts at 6:30 PM.** **Time:** The doors will be open at 6:00, with pizza and beverages provided. We will have a meet-and-greet-and-pizza session, and then at 6:30 we'll have a presentation. **Zoom information:** https://us06web.zoom.us/j/86862937929?pwd=woa95D1r85dobjqxQ07NfBLNdTa9hc.1 Passcode: 705462 **If you can't get in, please call me at: 734 223-3307** **Document source:**

Why are we unhappy? Where does emotional pain come from? Studies show that people who suffer from long-term emotional pain have painful experiences in their lives that were never fully resolved in their mind. In other words, there were issues in the past that were not completely dealt with. This can include abuse in childhood, breakups, divorce, death of a loved one, to name a few. How do you know whether you have gotten over something painful? Here is an easy test: Do you still have attention on what had happened to you? For instance, do you still find yourself thinking about something painful that you went through? If you are, then you are not over it. In fact, in severe cases, people find themselves playing a "tape" in their mind over and over again. So how do you heal from your past? How do you stop the "tape" playing in your mind? In this meeting, you will learn a technique to help you with that. Come join us! 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 Dianetics and Scientology life improvement center.

Bring your business cards and network in person with other business professionals! Gold Star Referral Clubs is one of the most established professional networking organizations in the country, with multiple groups in central Ohio. Join us!

**Confidence & Connection: Using Your Authentic Truth to Find Your People** Confidence isn’t just about believing in yourself, it’s about knowing where you belong and who you can grow alongside. In this April Confidence Lab Happy Hour, we’ll explore how living in your authentic truth helps you find your people, build meaningful collaborations, and create spaces where vulnerability is met with respect rather than risk. Together, we’ll reflect on what it looks like to advocate for yourself with clarity and care, and how confidence deepens when it’s rooted in connection rather than comparison. Featured speaker **Lachandra Baker**, founder of **[LBB Edutainment](https://www.lbbedutainment.com/)** and author of *Your Own Biggest Cheerleader*, will share reflections on authenticity, psychological safety, and the power of community over individual achievement. Drawing from personal stories—including the significance of turning 53—Lachandra will invite us into a conversation about showing up fully, being seen, and choosing relationships that support who you truly are. Expect a warm, welcoming atmosphere with space for reflection, shared insight, and intentional connection—plus drinks, light bites, and the kind of conversations that remind you you’re not meant to do this alone. Come as you are. Leave feeling clearer about your voice, your people, and the confidence that grows when both are aligned. **What is Confidence Lab?** Confidence Lab is a monthly community experience for bold, thoughtful leaders building confidence from the inside out. Whether you’re launching a business, leading a team, navigating change, or simply striving to show up more fully—you belong here. Our work demands clarity, courage, and conviction—but the pace of daily life can erode our sense of self. Confidence Lab creates space to reflect, reconnect, and grow with others doing purpose-driven work. It’s designed for entrepreneurs, nonprofit leaders, creatives, corporate professionals, activists, and anyone ready to lead with authenticity and impact. ***Please note:*** *All are welcome! If cost is a concern, please use promo code PUBLIC to access a free ticket—we want you to join us.*

Join us for our networking opportunities in a relaxed setting where you can recharge your social energy with positive, uplifting interactions. The atmosphere is always warm and welcoming, so don't hesitate to introduce yourself. A photo corner to capture the moment. This is your chance to step away from the screen and into real connection.

Join us for a two mile trail hike alongside the Brookside Trail at Blendon Woods Metro Park. This trail is largely gravel and does include some hills and stairs. Hopefully we will see some wildlife while hike this scenic trail! Join us!

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

**On Freestyle night** \- just bring a bottle to share\. There is NO formal wine tasting like on other weeks\. Door charge is $10 \(cash or Venmo only please\)\. We may have some left over wines to clear out\! Glasses are provided\. Take Care\. See you there\. **Parking**: There are several public parking lots near the Alive614 hall. Please be careful to NOT park in private parking lots. They do tow. Check Google maps to scope out your space. Anyone who is early could easily find a parking space on the street nearby. I am told that the Chase parking lot is safe after hours. **Glasses**: …will be provided. Please note that after the wine tasting, the EMPTY glasses need to be returned to the boxes at the service table. Please do not make me hunt down your empty glass. Please be gentle, our glasses are fragile. Uh, they are made of glass! (ps - empty the glasses into the sink, not the trash ... please) **Food**: You are welcome to bring a snack to share. It is not required. Most people do though. If no one brings anything, there will be nothing. **Code of Conduct**: Though mostly understood, it’s still worth mentioning. We don’t have rules per se, but we highly discourage the following topics of discussion because they are likely to incite anti-social responses - Sex, Politics, Religion. Please don’t mistake this as an attempt to limit your free speech rights but rather a guide to a place and time for appropriate discussions. **After the lights go out**: After the last sip of wine, when we clean up and turn the lights out, if you still haven’t had enough of us, it is typical for a group to get together and go to a local eatery for food and/or drinks or coffee. Again, We look forward to meeting new members and reuniting with old friends. Sincerely, ***Paul Uttermohlen***, **Red 1 Realty** *Your Hilliard Wine Club Host*

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads**®**, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

**Welcome to the Women’s Columbus Bogleheads® Sub-Group** This sub-group is for **women who want to learn and discuss finances in a safe, supportive space**. For those interested in moving towards financial independence and retirement by learning investment basics, choosing your 401(k) investments, minimizing taxes, and more. We’re a local chapter of **Bogleheads®**, following a long-term, practical investment philosophy: [Investment Philosophy](https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy): https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy [Bogleheads Forum](https://www.bogleheads.org/index.php): https://www.bogleheads.org/index.php No question is too small, and no experience is too simple. Share, ask, and learn — at your own pace, without judgment, in a group of like-minded women. Let’s build confidence and knowledge **together**!

We will cover metadata-driven approach to building and operating data pipelines at scale on AWS. Discuss architecture, design trade-offs, and lessons learned from running a unified pipeline across multiple customers using configuration-driven workflows. **Presenter: Dilshad Nasirov** Seasoned Software Architect and cloud practitioner with 20+ years of experience building scalable systems and data platforms. Specializes in AWS, with deep expertise in data lakes, serverless architectures, and real-time data processing. Has led the design and delivery of enterprise-grade solutions across industries, helping organizations improve performance, reduce costs, and unlock data-driven insights. https://www.linkedin.com/in/dilshad-nasirov-4538431/ **CALL FOR SPEAKERS** Learn more: https://www.awscolumbus.com/get-involved/ **THANK YOU** *Leading EDJE* for hosting our meetup! Leading EDJE specializes in helping organizations innovate and solve complex problems. EDJE does this with their "A" player team of professionals using agile methodologies and SCRUM management techniques to give organizations a competitive advantage that sets them apart. Learn more at https://www.leadingedje.com/ **THANK YOU** *Amazon Web Services* for sponsoring pizza! Learn more at https://aws.amazon.com/. **DIRECTIONS** 6515 Longshore Loop, Suite 300 Dublin, OH 43017 (3rd floor) **FREE PARKING** at the Endres Garage across the street, 6540 Riverside Dr, Dublin, OH **Want to sponsor the pizza and/or bar tab for a future meetup?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

**Details:** If you haven’t yet built an Agent yourself, this is for you! A hands-on workshop where you build a production-ready AI chatbot from scratch using Python, Streamlit, Claude AI, and RAG (Retrieval-Augmented Generation). **Speaker Bio:** Gus Cavanaugh is a former strategy consultant turned GTM leader in data and analytics. He teaches Python, data, and AI through local meetups and enjoys helping others get hands-on with modern tools. He lives in Winston-Salem with his family and starts most days at 6am in the gym. **Audience Takeaway:** By the end of this workshop, you'll have created: * ✅ AI-powered chatbot that answers questions about uploaded documents * ✅ RAG implementation with vector search and semantic retrieval * ✅ Web search integration for current information * ✅ Professional web interface using Streamlit * ✅ Cloud-deployed application that runs immediately * ✅ Portfolio-ready code you can customize and share No AI experience required. No local installation needed. Everything runs in the cloud. **Zoom: This is a *hybrid* event. To attend online, join us on Zoom here at 6pm:** https://iit-edu.zoom.us/j/89379230295?pwd=NdETyE5sdYuSrvsrBZXSBFkUESBVkg.1 Meeting ID: 893 7923 0295 Passcode: 5t5WYn **Sponsor:** **[AlphaSense](https://www.tegus.com) will provide the meeting site, as well as pizza and soft drinks for the onsite participants.** * **Address:** 200 N. LaSalle Street. Suite 1100. Chicago, IL 60601 * **AlphaSense's Overview:** The world’s most sophisticated companies rely on AlphaSense to remove uncertainty from decision-making. With market intelligence and search built on proven AI, AlphaSense delivers insights that matter from content you can trust. Our universe of public and private content includes equity research, company filings, event transcripts, expert calls, news, trade journals, and clients’ own research content. * The acquisition of Tegus by AlphaSense in 2024 advances our shared mission to empower professionals to make smarter decisions through AI-driven market intelligence. Together, AlphaSense and Tegus will accelerate growth, innovation, and content expansion, with complementary product and content capabilities that enable users to unearth even more comprehensive insights from thousands of content sets. Our platform is trusted by over 6,000 enterprise customers, including a majority of the S&P 500. Founded in 2011, AlphaSense is headquartered in New York City with more than 2,000 employees across the globe and offices in the U.S., U.K., Finland, India, Singapore, Canada, and Ireland. * **Logistics**: To access the Tegus by AlphaSense building, we require **first and last names** of those who RSVP'd by Apr 15. Attendees will then present their **IDs** when they arrive at the front desk (right when they enter the building). They will be sent up in the elevator to the 11th floor where we will be.

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.

Let’s try this popular Italian restaurant in Reynoldsburg. This is the menu: https://scaliristorante.com/#4e468054-0235-43e2-81c2-44e061341e9e

**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