MapReduce

**Meet new people over great food in a relaxed, social setting.** This is a small-group social dining experience for people who enjoy good food, good conversation, and expanding their circle in a natural way. Everyone attending is there to meet others — no pressure, no awkward networking. **What to expect** * A small group (usually 4–8 people) * A friendly, low-pressure atmosphere * Easy, natural conversation **How it works** We coordinate the group and reserve the table once attendees confirm. The venue and details are shared with the group beforehand. Just show up, order what you like, and enjoy the experience. Each guest covers their own food and drinks. To keep groups balanced and confirmed, seat confirmations happen through #dine: https://www.hashtagdine.com/

Mom's Basement is a fun and intimate place out on the Danforth, with a nice selection of craft beers. They host trivia on the last Tuesday of each month; lotsa fun. (Thanks for the recommendation, Tim. Any tips, please let us know.) They do not serve food, but have no problem with anyone bringing outside food; there are many good options nearby. Seating is first come, first served. Game starts around 7.

Join us for an intimate evening in downtown Toronto at our **April Networking Mixer** — designed exclusively for **Toronto** business owners, entrepreneurs, and founders. Hosted by **Toronto Event Hub**, this event offers a unique opportunity to build meaningful connections, collaborate, and grow your network as we kick off an exciting year ahead. **Date:** Tuesday, April 28, 2026 **Time:** 7:30 PM – 10:00 PM **Venue:** Pizza Rustica **You must [buy your ticket here on Eventbrite to secure your spot](https://www.eventbrite.ca/e/april-networking-mixer-for-gta-business-owners-entrepreneurs-tickets-1985970061916?aff=meetup)**[ ](https://www.eventbrite.ca/e/april-networking-mixer-for-gta-business-owners-entrepreneurs-tickets-1985970061916?aff=meetup)\- an RSVP on Meetup does not count\. ✨ *Our events are more intimate that draw **15-40 founders & entrepreneurs** from a variety of industries & cities who believe networking should feel genuine — not transactional.* Check our events at [Toronto Event Hub](https://www.torontoeventhub.com/).

This is a ticketed event. Please register at [this link](https://luma.com/82gzzssz). ​Kathrin Gardhouse (Senior Associate, AI Governance at The Future Society) walks through what other jurisdictions are doing to regulate AI and asks what Canada should take from each. Given that Canada doesn't host frontier developers, has a market less than 10% the size of the EU's, and recently caved on its digital services tax under US pressure, what's actually on the table? Kathrin argues that Canada may not need to focus on regulating frontier developers, but could ensure there's no safe haven here, team up with the EU, and prepare for the most severe AI risks through resilience-building and fiscal shock planning. ​​​**Event Schedule** 6:00 to 6:30 - Food and introductions 6:30 to 7:30 - Presentation and Q&A 7:30 to 9:00 - Open Discussions

Join us for an intimate evening in downtown Toronto at our **April Networking Mixer** — designed exclusively for **Toronto** business owners, entrepreneurs, and founders. Hosted by **Toronto Event Hub**, this event offers a unique opportunity to build meaningful connections, collaborate, and grow your network as we kick off an exciting year ahead. **Date:** Tuesday, April 28, 2026 **Time:** 7:30 PM – 10:00 PM **Venue:** Pizza Rustica **You must [buy your ticket here on Eventbrite to secure your spot](https://www.eventbrite.ca/e/april-networking-mixer-for-gta-business-owners-entrepreneurs-tickets-1985970061916?aff=meetup)**[ ](https://www.eventbrite.ca/e/april-networking-mixer-for-gta-business-owners-entrepreneurs-tickets-1985970061916?aff=meetup)\- an RSVP on Meetup does not count\. ✨ *Our events are more intimate that draw **15-40 founders & entrepreneurs** from a variety of industries & cities who believe networking should feel genuine — not transactional.* Check our events at [Toronto Event Hub](https://www.torontoeventhub.com/).

Let’s do some coding together at a cafe! No more working alone in the weekend. Here, we write code together. And I mean together together. Not occupying-the-same-space-but-separate together. Here’s how it works: Jennifer brings her mobile app project, tells everyone that it is like Pinterest for recipes and she’d like to work on the nav bar. Paul and Chloe think Jennifer's project is fascinating, and they join the group. They gather around Jennifer’s laptop and work on the nav bar for 2 hours. Jennifer is the one typing out the code while Paul and Chloe research, brainstorm, and offer suggestions. If you’re feeling stuck on your own project or need a motivation boost, bring it to mob programming! Want to learn by watching how others code and solve problems? Join someone else’s project at this event! Oh and we love your half-done projects that you are a bit embarrassed to share. Absolutely bring those to the event! **Discord**: We use Discord to share screen & code snippets during the event. Also feel free to share your projects here before the event! https://discord.gg/xwjDdVSw3E **Event policy**: * We have 0 tolerance for harassment. * We don’t allow the projects that are not meant to be shared in public such as school assignments, interview tasks, or trade secrets. * The goal is to write code. We discourage you from pitching business ideas here, doing code reviews, or spending the whole event on planning what to do. * Please buy a drink, and tip the barista well.

**Hands-on. Real-world. Team-based. AWS JAM is here!** Join us for an exciting evening of cloud-powered challenges at our **AWS JAM Session**, hosted during the **AWS User Group Toronto** April meetup. This interactive session will challenge individuals and teams to solve **real-world, open-ended problems using AWS services.** Whether you're a seasoned AWS builder or just getting started, JAM sessions offer a collaborative and gamified environment to learn, compete, and grow your cloud skills. *** ### **What to Expect:** * Hands-on problem-solving * Team-based format – form your squad onsite * friendly competition * Swag & prizes for top performers * Networking with AWS experts and cloud enthusiasts ### **What You’ll Need:** * Laptop with Wi-Fi access * AWS account (will be provided) * Curious mindset and collaborative spirit! ### **Date and Time:** **-> Thursday, April 30, 2026** **-> 5:30 PM – 7:30 PM EDT** *** ### **Location:** **AWS Office ;** Floor 47 - 40 King St W, Toronto, ON M5H 1H1 ### **Venue Note:** We’re hosting this at the **AWS Toronto Office**, So please RSVP early and update your status if your plans change. **Let’s JAM and build something awesome together! 💥**

Join the Toronto Founders Hub every other Saturday at 3:30pm for our regular meetup at 5 Elements Espresso Bar. Sit down with other entrepreneurs to network and discuss business ideas or strategies. \- Broaden your network \- Get critical feedback \- Socialize in low pressure setting I look forward to seeing you!

The playbook for AI agent integration is becoming predictable: build an MCP server, expose your APIs as tools, and define the rules in prompts. That approach works, but it often pushes workflow and guardrails into client-side logic, where they are harder to enforce and easier to bypass. This talk presents a different approach. HATEOAS (Hypermedia As The Engine Of Application State)—a largely overlooked part of REST—allows an API to describe allowed actions and constraints at runtime. That makes it a natural fit for agents, which need clear, machine-readable guidance about what they can safely do next. We’ll show this in action with MoneyMate, an AI agent that performs sensitive operations such as money transfers. Using the Spring HATEOAS project, the agent is guided entirely by the API rather than by hardcoded tools or fragile prompt logic. AI hype aside, this is ultimately a talk about architectural validation. For years, HATEOAS was the hill REST purists loved to die on—complete with finger-wagging about “doing REST correctly”—while everyone else quietly shipped simple JSON and moved on. It turns out the purists weren’t wrong—just 20 years early. Come see why that extra structure finally pays off when your client is an LLM. **About the venue** Free Times Cafe has bistro-style seating and a full food and drink menu. Please consider helping to support the venue by planning to have supper during the talk. **Speaker Bio** Adib Saikali is a distinguished engineer at Tanzu by Broadcom, focused on helping Tanzu’s largest customers design and build cloud native applications and platforms using Spring and Kubernetes. Adib is the author of Securing Cloud Applications a book that teaches application developers the fundamental security technologies and protocols required to secure cloud native applications. Over the past 25 years Adib has worked at startups and global enterprises on numerous software systems in a variety of roles, from software developer, architect, agile coach, and CTO. He has developed a 360-degree view of what it takes to build software systems efficiently, and economically.

**This is a ticketed event. Please register at [this link](https://luma.com/gprawfks).** In this talk, Sheikh Abdur Raheem Ali: 1) Discusses rare cases where deployed LLMs have been observed to engage in self-directed behavior which would have led to catastrophic outcomes if the agent escaping containment were equipped with stronger capabilities. 2) Introduces arbitrium, a peptide-based communication method used by certain bacteriophages which release small molecules known as autoinducers to decide coordinated population-level behavior, and in particular lytic and lysogenic pathways, with a quorum-sensing mechanism. 3) Explores landmark results from alignment science which inform our current understanding of LLM biology (<250 malicious documents required to poison training datasets vs <100 viral particles required to produce infection in humans). 4) Analyzes early findings from experiments which attempt to investigate scalable improvements to defenses that monitor the internal activations of production transformer models (such as probes) and demonstrates how these enable targeted interventions on known distributions which are more difficult to achieve with input/output only methods (such as prompted classifiers) in certain cases (such as long context windows or latent reasoning models) ​​​**Event Schedule** 6:00 to 6:30 - Food and introductions 6:30 to 7:30 - Presentation and Q&A 7:30 to 9:00 - Open Discussions ​​​​​​If you can't make it in person, feel free to join the live stream starting at 6:30 pm, via [this link](https://www.youtube.com/@Trajectory-Labs/live).

This group is for badminton enthusiasts who are passionate about exploring the connections between metabolism, energy, and exercise. We are welcome beginner plus, intermediate and advance level players looking to improve your skill or a seasoned player seeking to optimize your performance on the court, this group is for you! Join us for friendly games. This badminton session is a weekly event and it is followed with dinner together but it is optional. Birdies: Please bring one birdie with you. However, if you are intermediate plus or advanced level, bring two birdies with you. Court fee: It will be informed at the comment section by 4pm. Cost per person is either $162 (for 3 courts) divided by the number of players attended OR $108 (for 2 courts) divided by the number of players attended. My email address will be provided at that time for etransfer.

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

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.

It feels like we just saw each other 🤷. Join members of the local design and UX community for our monthly breakfast. For May we’re stopping in for Rooh’s popup breakfast/cafe concept. You know someone is getting the lobster yuzu croissant, and that’s not even the prettiest thing on the menu!.

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant. *** Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'! Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life. Mission: grow, support, and provide community for atheists in Central Ohio. Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision. Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge. Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ).

**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

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant. Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'! Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life. Mission: grow, support, and provide community for atheists in Central Ohio. Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision. Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge. Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ). This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us.

The May Ohio North Database Training user group meeting will be held on **May 5th, 2026 at 5:00PM**. This will be a **HYBRID** event and we will be joined in person by **Sam Nasr.** You're welcome to come meet in-person at our meeting location, the offices of Improving at **[6000 Freedom Square Dr,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Unit 110,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Independence, OH 44131](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** [Teams Link ](https://teams.microsoft.com/meet/287759659366576?p=kCaammjECnUCvZzEJv)if anyone needs it after RSVP-ing for in person. If you would like to subscribe to our email list outside of Meetup, we have changed platforms recently and you will need to register [here in Kit ](https://ohio-north-data-training.kit.com/b8f036f615)instead to receive emails. Agenda: **5:00 PM EST**: Online and in-person meeting begins with a social hour. This is an unstructured hour where you can join us to catch up and meet other group members before the session starts. There will be food brought in for in-person attendees. **6:00 PM EST**: Elections, announcements, followed by our feature presentation. See below for presentation details. **7:30 PM EST**: Optionally after the main presentations, the in-person crowd may go out for snacks and drinks at a local establishment. We hope to see you there! Session Abstract ### Data Cleansing using Data Bricks Machine Learning is highly dependent on adequate data. Not only does quantity matter, but more importantly quality. In this session we’ll cover how to build a custom automated process using Data Bricks. This will provide methods for cleaning data in a data lake using functions in Azure. \*Please note, that we will be using Microsoft Teams for the online portion of this meeting. You may want to join a few minutes early to ensure you do not have any issues. If you are attending in person, there are large TVs at the office, and you do not need to bring a laptop or use Teams.