Data Vault Database Modeling

Our next meet-up is scheduled for March 18th....and we promise it will be a blast! ​Join us for a no-fluff, practitioner-led deep dive into two critical LLM challenges with focus on quantization and cheat-proof evaluations . ​This time we will handle a pannel discussion with two experts in the area - David Kоchoanov and Yordan Darakchiev. ​Pannel 1: Smarter AI at lower cost: How quantization makes LLMs more efficient? ​What can you expect? ​LLMs guzzle RAM and GPU like crazy. Quick rundown: inference modes, bottlenecks, the math behind it. ​Hands-on: when to use each and how to benchmark properly. ​The talk will provide a quick review of LLM inference modes, current bottlenecks, and numerics. The main goal is to explain post-training quantization methods that are most commonly supported by modern software and hardware, and give practical recommendations for their use and model benchmarking. We'll also provide a brief summary of the academic literature and discuss quantization-aware training and distillation. ​Who will present? ​David Kochanov has over 10 years of experience in computer vision research and development. In his current role at CARIAD (Volkswagen Group), he works on autonomous driving and driver assistance systems, with a focus on model deployment for real-time inference, including quantization and architectural optimizations. ​Pannel 2: Everybody Lies: How Language Models (and People) Cheat ​What can you expect? ​Teaching computers and people have the same temptations - students game grades, LLMs game benchmarks. We grade LLMs like exams: bad criteria reward test-taking tricks, not truth. The talk will present specially built for the pannel small BI-style benchmark (SQL, data summaries, and insight generation) with multiple LLM "judges" grade multiple models. With only couple of stress tests on the judges with small changes to the grading scheme all were broken - creating pure chaos! ​Rankings flip depending on who grades, response length beats correctness, and judges favour familiar model "accents". ​We'll end with an "academic integrity" toolkit for LLM evaluation: ensembles, invariance checks, length controls, and lightweight human calibration to make our LLM metrics harder to cheat on, and easier to trust. ​Who will present? ​Yordan Darakchiev is a data scientst and technical trainer. He has helped various teams turn data and ML into modern, measureable, production systems. His specialty are vision and language models, with a sharp focus on evaluation - fairness, privacy, trustworthiness, and robustness. He also teaches math and machine learning and has helped kickstart the career of more than 1000 data and ML professionals. ​Our next meet-up is scheduled for March 18th....and we promise it will be a blast! ​Join us for a no-fluff, practitioner-led deep dive into two critical LLM challenges with focus on quantization and cheat-proof evaluations . ​This time we will handle a pannel discussion with two experts in the area - David Kоchoanov and Yordan Darakchiev. ​Pannel 1: Smarter AI at lower cost: How quantization makes LLMs more efficient? ​What can you expect? ​LLMs guzzle RAM and GPU like crazy. Quick rundown: inference modes, bottlenecks, the math behind it. ​Hands-on: when to use each and how to benchmark properly. ​The talk will provide a quick review of LLM inference modes, current bottlenecks, and numerics. The main goal is to explain post-training quantization methods that are most commonly supported by modern software and hardware, and give practical recommendations for their use and model benchmarking. We'll also provide a brief summary of the academic literature and discuss quantization-aware training and distillation. ​Who will present? ​David Kochanov has over 10 years of experience in computer vision research and development. In his current role at CARIAD (Volkswagen Group), he works on autonomous driving and driver assistance systems, with a focus on model deployment for real-time inference, including quantization and architectural optimizations. ​Pannel 2: Everybody Lies: How Language Models (and People) Cheat ​What can you expect? ​Teaching computers and people have the same temptations - students game grades, LLMs game benchmarks. We grade LLMs like exams: bad criteria reward test-taking tricks, not truth. The talk will present specially built for the pannel small BI-style benchmark (SQL, data summaries, and insight generation) with multiple LLM "judges" grade multiple models. With only couple of stress tests on the judges with small changes to the grading scheme all were broken - creating pure chaos! ​Rankings flip depending on who grades, response length beats correctness, and judges favour familiar model "accents". ​We'll end with an "academic integrity" toolkit for LLM evaluation: ensembles, invariance checks, length controls, and lightweight human calibration to make our LLM metrics harder to cheat on, and easier to trust. ​Who will present? ​Yordan Darakchiev is a data scientst and technical trainer. He has helped various teams turn data and ML into modern, measureable, production systems. His specialty are vision and language models, with a sharp focus on evaluation - fairness, privacy, trustworthiness, and robustness. He also teaches math and machine learning and has helped kickstart the career of more than 1000 data and ML professionals. Agenda: 18:30-19:00 - Welcome drinks 19:00-20:00 - Pannel 1 & Pannel 2 20:00-20:30 - Q&A 20:30-21:30 - Networking ​Note: Event will be handled in English. ​Event is free but registration is mandatory: https://luma.com/8bbbxx1t

We are hosting our next meetup in Sofia! **Address:** Barter Community Hub \| Puzl\, 47 Cherni Vrah BLVD\, Sofia\, Bulgaria https://www.barter-hub.com **Agenda:** 17.45: Doors open, join us for snacks and drinks 18:15: Building Data Products with Logstash 19.00: How Elastic Streams Simplifies Log Data Management 19.45: Networking 20.00: Close **Talks:** **Building Data Products with Logstash** This talk will demonstrate how Logstash can be used to pull data, perform cleanup and enrichment, and create a data product (e.g., asset tracking) visualized in Kibana. *Speaker: Tsvetan Paskov, Full-stack Developer, DevOps, Founder @Move2Chat* **How Elastic Streams Simplifies Log Data Management** Learn how to manage log data more efficiently using Elastic Streams. This talk covers the challenges of unstructured logs, the benefits of schema-on-ingest, and new stream processing capabilities for transforming and structuring log messages. You’ll see how to use AI-assisted Grok pattern suggestions, conditional processing, and the schema editor to map fields accurately. We also explore how to monitor data quality through degraded and failed document tracking, and how to set custom retention policies. Finally, you’ll get an overview of Wired Streams, Elastic’s unified log ingestion model that simplifies routing and stream partitioning post-ingestion. *Speakers: Boris Kirov (Observability - Senior Product Designer) and Giorgos Bamparopoulos (Senior Manager Software Engineering) @Elastic*

📣 #45 [Cyber Security Talks Bulgaria](https://www.linkedin.com/company/cyber-security-talks-bulgaria/ "https://www.linkedin.com/company/cyber-security-talks-bulgaria/") е готов. 📣 Този път ще говорим за Cloud security, Governance, Quantum threats and something more. 🚨 Подгответе се за едно страхотно събитие в офиса на нашия домакин - KPMG Delivery Network Bulgaria. Темите на събитието: * **Using AWS native solutions for compliance checks (Security hub CSPM and AWS Config) on scale** - *Светломир Балевски* – DevSecOps architect at KPMG Delivery Network Bulgaria (*talk in bulgarian*) * **Passwords, encryption and the quantum threat -** *Alon Rotem* – Manager of Solution Architecture at KPMG Delivery Network (talk in english) * **Cloud security posture and governance -** *Иванка Кабранова* – Identity Architect at KPMG Delivery Network Bulgaria (*talk in bulgarian*) 🆓Както всеки път, входът е безплатен, но се изисква регистрация: 📅ДАТА : 17 март ⏰ЧАС: 19:00 часа 📍КЪДЕ : Офис на KPMG Delivery Network Bulgaria, Бизнес Парк София, сграда 15А, етаж 3

“**A mentor is someone who allows you to see the hope inside yourself.**” – Oprah Winfrey ✨ And that’s the whole truth! 🥸 At the event **“The Power of Mentorship in My Career,”** Maria Saykova, VP Product Support 👩, will tell us more about the role her mentors have played in her career path 🤝, the lessons she has learned 📖, how to properly navigate the path of mentorship 🚀, and what AI mentoring is all about 🤖. The event is free, but **prior registration is required -** [https://luma.com/25egpx1d](https://luma.com/25egpx1d?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBEwWExlUkhYT3Y3SkVrVUc0SXNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR7i3nm8kC9n59ctarjyMXUlPlaD7HLthTigYvnr-PDwrxWIjArB3opCy7BiXg_aem_HBLFO9T_OM8lufotC4VnCA)

📌 Let's meet in **Sofia** on **March 19th 2026** for an interactive conference and an enriching networking session! Come and discover Odoo, the all-in-one integrated software that will simplify your day-to-day business. Say goodbye to double coding, lost invoices and budgets; create your website in a few clicks... Odoo offers you a wide range of tools built for IT.🧐 🔎 **AGENDA** 🔍 18h00: Welcome! 18h15: Conference - Interactive demo & tips to digitize your company. 20h00: Networking - Snacks and drinks. ➡️ Are you convinced? You can subscribe at the following link: https://www.odoo.com/r/RfP The event is free, but registration is mandatory.❗ **Important:** 📍 Where? Sofia Grand Hotel - 1, General Gurko St str, 1000 Sofia, Bulgaria 📅 Date? Thursday, March 19th , 2026 📝 Registration? https://www.odoo.com/r/RfP 💰 Price? FREE! Hope to see you soon!

**Founders Running Club** (FRC) brings founders, investors, tech, creative people and startup enthusiasts together for weekly easy runs and networking. We like to be comfortable when we run and finish with coffee and conversations. Choose your pace or follow a pacer—pets, friends, family, are welcome. 🗓️ Launched in San Francisco, July 16, 2022 🌍 Now in 35+ cities 📅 Running + Networking events + Community **Join the community** [http://foundersrc.com/chats](http://foundersrc.com/chats) **Stay updated**: Instagram [http://instagram.com/foundersrc/](http://instagram.com/foundersrc/) Podcast [http://podcast.foundersrc.com/](http://podcast.foundersrc.com/) LinkedIn [http://linkedin.com/company/foundersrc/](http://linkedin.com/company/foundersrc/) Strava [http://strava.com/clubs/foundersRC](http://strava.com/clubs/foundersRC) Website [http://foundersrc.com/](http://foundersrc.com/)

Discover Kiro, AWS’s innovative development environment that adapts to your workflow. Whether you prefer specification-driven development or a more intuitive, vibe-based approach, Kiro empowers you to build applications your way. In this session, speakers will explore Kiro’s core functionality and its evolution through re:Invent 2025, along with demonstrations of prompts used to create APIs, hooks, and steering documents. In the latter part of the session, watch as we build a complete example from scratch, showcasing Kiro’s agentic AI workflow in action for spec-driven development and vibe coding. What You'll Learn - Core Kiro concepts and development philosophy Feature evolution: pre and post re:Invent 2025 Practical examples: API creation, hooks, and steering docs Live coding demonstration with real-time problem solving Who Should Attend - Developers, solutions architects, and technical leaders interested in modern AWS development tools and AI-assisted coding workflows. **Speakers Bio:** Matthew Jorat: Matthew Jorat is a Customer Solutions Manager at AWS with nearly three decades of expertise in AI, cloud transformation, migration, modernization, IT, technology, and business. His career spans infrastructure engineer, solutions architect, security auditor, customer success director, support and services director, and operations officer. He was an early adopter of AWS services as a customer, and his current role at AWS uniquely blends his technical and business skills as he partners with executive teams to translate strategic priorities into measurable business outcomes through cloud adoption, AI implementation, and operational excellence. Matt leads end-to-end AI initiatives for enterprise customers, identifying high-impact use cases and maintaining relentless focus on measurable ROI. He holds eight AWS certifications and serves as Adjunct Professor at Franklin University teaching cloud computing and AWS architecture. His expertise encompasses GenAI, agentic AI systems, migration, modernization, and optimization strategies that drive transformation at scale. [https://www.linkedin.com/in/mattjorat/](https://www.linkedin.com/in/mattjorat/) Girish Bhatia: Girish Bhatia is a seasoned technology delivery leader with deep expertise in cross-domain program management. He holds multiple AWS certifications, including AWS Certified Solutions Architect – Associate, AWS Certified Developer – Associate, and AWS Generative AI Practitioner, and is also an AWS Community Builder. Girish brings over two decades of experience in the information technology industry. Throughout his career, Girish has led major technology-driven business transformation from modernizing on-premises applications to driving large-scale cloud migrations. His work includes API-based integration platforms, data-center and mainframe modernization, and enterprise cloud adoption initiatives. Based in Columbus, Ohio, Girish works at a tech-forward fintech company. He is passionate about AWS serverless architectures, Generative AI and emerging cloud technologies. An avid learner and builder, he continues to explore and apply the latest innovations in AWS to help organizations accelerate their digital transformation. https://www.linkedin.com/in/girishbhatia/[https://www.linkedin.com/in/girishbhatia/](https://www.linkedin.com/in/girishbhatia/) **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

**Details:** This talk reviews the fundamental academic research literature in financial economics, distilling key findings with rigor while debunking suboptimal investing decisions. It draws on decades of empirical research and statistical analysis with the aim of guiding how to think about sound investing. **Audience Takeaway:** Attendees will gain a practical, research-based approach to assessing investments, interpreting risk, and making choices that support long-term financial independence, informed by decades of published financial studies. **Zoom: This is a *hybrid* event. To attend online, join us on Zoom here at 6pm:** https://iit-edu.zoom.us/j/87434065239?pwd=mK8gkDO6FTL2NBCXrgnViDwVJU14YT.1 Meeting ID: 874 3406 5239 Passcode: 826532 **Sponsor:** **[Tegus by 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 * **Tegus by AlphaSense's Overview:** Tegus by AlphaSense is the leading market intelligence platform for key decision makers. We power some of the world’s most well-respected institutional investors, corporations, and consultancies through the largest and most comprehensive database of primary and market information. Our products and services enable clients to discover unmatched insights and answers to the most challenging questions they face to help them make better informed decisions. We are an end-to-end investment intelligence and research platform that modernizes the research processes. With an ecosystem that combines at-cost, on-demand expert calls with a 55K+ transcript library; quantitative financial workflows that streamline research across company disclosures, management presentations, earnings calls and filings; and 4K+ fully-drivable financial models and company benchmarking data, including every KPI and comparison that matters, Tegus by AlphaSense enables investors to move faster, gather deep research and surface high-quality insights to drive better decisions. The company serves customers worldwide, including investment analysts, portfolio managers and key decision makers across public and private businesses in markets of all sizes. * **Logistics**: To access the Tegus by AlphaSense building, we require **first and last names** of those who RSVP'd by Mar 18. 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.

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/

**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 **Abstract** TBD **YouTube Link** TBA

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

Builders, creators, architects, admins, consultants - come one, come all. This one's for you. We're bringing a little friendly competition to the Columbus ServiceNow community while highlighting the cool things people have built on the platform. Five presenters will take the stage to showcase something they've built, solved, designed, or imagined on the ServiceNow platform - and a panel of judges (plus YOU, our amazing audience) will score them live. So basically, America's Got Talent but make it ServiceNow's Got Talent. Bring a notepad if you'd like 'cause you'll definitely be learning something new. Each presenter gets 10 minutes max to wow the crowd with: • A demo • A real-world business solution • A bold idea • A UX transformation • Or a creative use of the platform Judging Criteria: 🏆 Business Value 🚀 Innovation ✨ User Experience This event is about celebrating ideas, sharing knowledge, and showing how ServiceNow can drive both business impact and meaningful user value. Come learn. Come support. Come get inspired. Refreshments and bites will be provided. And maybe next time… you’ll be on stage.

**Our March pick is *God of the Woods* by Liz Moore.** **This month’s novel is an award-winning literary mystery that blends family drama with psychological suspense. It explores women’s voices and relationships while delivering an exciting, eerie, and deeply suspenseful story. The book is 576 pages in print or 14 hours and 35 minutes on audiobook.** Early morning, August 1975: a camp counselor discovers an empty bunk. Its occupant, Barbara Van Laar, has gone missing. Barbara isn’t just any thirteen-year-old: she’s the daughter of the family that owns the summer camp and employs most of the region’s residents. And this isn’t the first time a Van Laar child has disappeared. Barbara’s older brother similarly vanished fourteen years ago, never to be found. As a panicked search begins, a thrilling drama unfolds. Chasing down the layered secrets of the Van Laar family and the blue-collar community working in its shadow, Moore’s multi-threaded story invites readers into a rich and gripping dynasty of secrets and second chances. It is Liz Moore’s most ambitious and wide-reaching novel yet.