Análisis de datos con R

**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)

Highlights and Hidden Gems in SQL Server 2025 With so much emphasis on cloud data platforms and AI these days, SQL people can feel left behind by all the marketing hype. SQL Server 2025 was officially released in November of 2025, though, and contains a ton of improvements that will make our SQL Server deployments a bit faster, better, and more secure. There are even more improvements tucked into the release that never made a marketing blog or press release that you'll likely be learning about for the first time in this session! Join this session to learn about what makes your high availability a little more available, your performance a bit more performant, and your database more developer and app-friendly. Come spend an hour with SQL people talking SQL Server 2025 – the good, the "not quite ready for prime time", and the hidden awesomeness.

💖 𝐌𝐚𝐫𝐫𝐢𝐚𝐠𝐞-𝐌𝐢𝐧𝐝𝐞𝐝 𝐒𝐢𝐧𝐠𝐥𝐞𝐬 💖 𝐁𝐞𝐠𝐢𝐧𝐧𝐞𝐫 𝐁𝐚𝐜𝐡𝐚𝐭𝐚 𝐃𝐚𝐧𝐜𝐞 𝐂𝐥𝐚𝐬𝐬! 𝐒𝐮𝐧𝐝𝐚𝐲, 𝐉𝐮𝐥𝐲 𝟏𝟗, 𝟐𝟎𝟐𝟔 𝟕 𝐩𝐦 – 𝟗 𝐩𝐦 𝐀𝐠𝐞𝐬 𝟐𝟓-𝟒𝟎 💖 𝐓𝐡𝐞 𝐋𝐨𝐯𝐞 𝐨𝐟 𝐘𝐨𝐮𝐫 𝐋𝐢𝐟𝐞 𝐂𝐨𝐮𝐥𝐝 𝐁𝐞 💖 𝐉𝐮𝐬𝐭 𝐎𝐧𝐞 𝐃𝐚𝐧𝐜𝐞 𝐀𝐰𝐚𝐲! 👉 Are you tired of wasting time on people who aren’t serious? 👉 Are you all swiped-left and swiped-right out? 👉 Are you tired of false starts and situationships? If you answered yes to any of the above, then this event was created with YOU in mind! 𝐃𝐨𝐧’𝐭 𝐦𝐢𝐬𝐬 𝐭𝐡𝐢𝐬 𝐅𝐔𝐍 𝐨𝐩𝐩𝐨𝐫𝐭𝐮𝐧𝐢𝐭𝐲 𝐭𝐨 𝐦𝐞𝐞𝐭 𝐢𝐧𝐭𝐞𝐧𝐭𝐢𝐨𝐧𝐚𝐥 𝐩𝐞𝐨𝐩𝐥𝐞, 𝐦𝐚𝐤𝐞 𝐧𝐞𝐰 𝐟𝐫𝐢𝐞𝐧𝐝𝐬, 𝐠𝐞𝐭 𝐲𝐨𝐮𝐫 𝐝𝐚𝐧𝐜𝐞 𝐨𝐧, 𝐛𝐮𝐫𝐧 𝐬𝐨𝐦𝐞 𝐜𝐚𝐥𝐨𝐫𝐢𝐞𝐬, 𝐚𝐧𝐝 𝐦𝐚𝐲𝐛𝐞 𝐞𝐯𝐞𝐧 𝐦𝐞𝐞𝐭 “𝐲𝐨𝐮𝐫 𝐩𝐞𝐫𝐬𝐨𝐧!” The dance class is for BEGINNERS, so therefore no dance experience is required or expected! If you do have experience dancing bachata, then we won’t hold that against you, either! 😂 We will be rotating partners CONTINUOUSLY, so you will have the opportunity to meet and converse with everyone! 𝐓𝐡𝐢𝐬 𝐨𝐧𝐞-𝐨𝐟-𝐚-𝐤𝐢𝐧𝐝, 𝐁𝐞𝐭𝐭𝐞𝐫-𝐓𝐡𝐚𝐧-𝐒𝐩𝐞𝐞𝐝-𝐃𝐚𝐭𝐢𝐧𝐠 𝐞𝐯𝐞𝐧𝐭 𝐰𝐢𝐥𝐥 𝐜𝐨𝐧𝐬𝐢𝐬𝐭 𝐨𝐟: ✅1. Registration and Meet-And-Greet ✅2. Beginner Bachata Dance Class ✅3. Dance Practice and Mutual Matching 𝐑𝐄𝐆𝐈𝐒𝐓𝐑𝐀𝐓𝐈𝐎𝐍 𝐈𝐒 𝐑𝐄𝐐𝐔𝐈𝐑𝐄𝐃! 👉𝐕𝐢𝐬𝐢𝐭 𝐭𝐡𝐞 𝐥𝐢𝐧𝐤 𝐛𝐞𝐥𝐨𝐰 𝐭𝐨 𝐫𝐞𝐠𝐢𝐬𝐭er: MarriageMindedSinglesDance.com Questions? Text Todd Smith 614-774-8146

Ciao a tutt\*! Let's meet Monday at 6.30pm at the Upper Arlington Library (**Tremont** Branch) in **Meeting Room A** to speak in Italian for 1 hour.

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.

**🔥 Lincoln Street Salsa HAS MOVED TO EVERY FRIDAY, NO MORE SATURDAYS!** **🔥 Lincoln Street Salsa @ 1717 Brice Rd, Reynoldsburg 43068** **🔥 Salsa, Bachata, Merengue Dancing!** **🔥 NO PARTNER OR EXPERIENCE NEEDED!** **🔥 Every FRIDAY, 8 pm - 1 am** **🔥 8:00 pm - 8:30 pm = Registration** **🔥 8:30 pm - 9:30 pm = Beginner Dance Class** **🔥 9:30 pm - 1:00 am = Open Dance Party** **🔥 LincolnStreetSalsa.com** **🔥 Questions? Text Todd 614-774-8146**

**✅ Bachata Mondays with Todd Smith!** **👉 Beginner Bachata Class** **$15 In Advance / $20 At the Door** . 7:00 pm – 7:15 pm … Registration 7:15 pm – 8:15 pm … Beginner Class . **👉 Intermediate Bachata Class** **= $15 In Advance / $20 At the Door** . 8:15 pm – 8:30 pm Registration 8:30 pm – 9:30 pm Intermediate Class . **👉 If You Take Both Bachata Classes** **= $25 In Advance / $35 At the Door** . **👉 Buy Advance Tickets Now at:** . https://columbussalsadancing.com/bachata-mondays-dance-class-tickets/