Machine Learning

This is a ticketed event. Please register at [this link](https://luma.com/e69uao09). ​In his talk, Samuel Simko from ETH Zurich will present his recent work on adversarial defenses for LLMs, developed with the Jinesis Lab (University of Toronto). The talk will cover a series of approaches, ranging from triplet-based contrastive learning defenses to honeypot-style defenses designed to avoid worst-case behavior. He will also discuss patterns observed in contest-winning manual jailbreaking prompts, ideas for tamper-resistant safeguards, and the current limits of attacks, defenses, and evaluation methodologies. ​**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 attend in person, join our live stream starting at 6:30 pm via [this link](https://www.youtube.com/@Trajectory-Labs/live).

This is a ticketed event. Please register at [this link](https://luma.com/lpikw708). ​Ryan Faulkner explores various papers that address cooperation and safety in multi-agent LLM simulations. Some of the core topics will include: * ​Moral behaviour of agents in high-stakes, zero-sum, and morally charged social dilemmas * ​Governance and sanctioning dynamics and the ways that LLM agents often fail to cooperate and free-ride in common-pool resource game * ​Mechanism design interventions like mediation, contracts, and elected leadership are explored to steer agents toward safer outcomes. ​This research also reveals that LLMs adapt their behavior based on awareness of their conversational partner's identity. ​​​**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).

Join us this week as a guest to overcome your fear of public speaking and speak with confidence! We hold weekly meetings on Thursday nights to facilitate impromptu speaking, debates, discussions, and prepared speeches to practice our skills and give each other constructive feedback. We are a friendly group of all ages and backgrounds in the GTA, where we help our members and guests in their personal and professional development. We typically meet at the Etobicoke Civic Centre with lots of free visitor parking. You can join us as a guest anytime you want, for as long as you would like, to see what Toastmasters is all about! Come and join us this Thursday to become the best version of you. The theme for this week's meeting is TBD! Join us to practice your improv. speaking skills, debating skills, and to improve your public speaking abilities. If you're interested in attending this meeting, please contact us through our "Contact Us" form on http://goodyeartoastmasters.com/ See you there! ABOUT GOODYEAR TOASTMASTERS \*NOTE\* We are now back in-person at the Etobicoke Civic Centre! Visitor Parking is free. Simply let the Security Person know you're here for a Toastmasters meeting. • Our meetings start at 6:45 PM and lasts for about 2-hours. We suggest you arrive earlier to settle in and network before we begin. • It's free to attend as a guest and you can join us as many times as you would like. For the full access to the Toastmasters Pathways Programme, however, you will need to join as a member and pay a membership fee. • Don't worry about the low attendance numbers on Meetup. Members do not RSVP here. We use the club website instead. Meetup is primarily a place for us to reach out to newcomers such as yourself!

March 26th for the OpenClaw Meetup. Fraternal Order of Eagles - 17 Elm St, Toronto, ON M5G 1H1 [https://maps.app.goo.gl/tKyQGWh6pqSu5KTi8?g_st=ic](https://maps.app.goo.gl/tKyQGWh6pqSu5KTi8?g_st=ic) from 5-8p More information to come.. speakers, guests, talks..etc

Observability is supposed to help us understand our systems but for many teams it has quietly become one of the most expensive and least flexible parts of the stack. Plenty of organizations take polished SaaS platforms like Datadog to get real value quickly early on, only to hit the same wall later: runaway costs, pricing tied to architectural decisions, and vendor lock-in so strong it makes Rogers and Bell both blush. In this talk, I’ll walk through a real-world case study of a JVM-based production system that migrated away from a Datadog-centric observability setup to an open-source, OpenTelemetry-based platform. We’ll dig into the why behind the move, the architectural decisions that mattered, the mistakes along the way, and how the team ended up with pragmatic visibility into latency, errors, and resource usage at a fraction of the cost. The second half of the talk is practical and forward-looking. I’ll show how OpenTelemetry unlocks real choice by acting as a neutral data plane for your telemetry. From there, we’ll look at modern, off-the-shelf observability backends you can plug in within minutes without rewriting applications or installing new agents. Want to dual-write, swap vendors, or route data somewhere new? This is how you do it without a big-bang rewrite or another long-term commitment with a new vendor. This session is for engineers and CEOs who are feeling the observability cost squeeze, want leverage back from vendors, and are looking for realistic ways to modernize monitoring without lighting their entire stack on fire each time they decide to change their tools of choice. **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** Alexei Zenin is a Platform Engineering Consultant based out of Toronto, Canada. Over the course of his career he has worked across the Healthcare, Marketing, Video Games, and Banking industries. He loves to tackle hard problems in the distributed systems space with a focus on scaling platforms both from a technical and process perspective. He is a strong advocate for highly maintainable and well tested code while at the same time pragmatically delivering value to the end user. He has contributed to the broader tech community, namely to Confluent’s blogs on Apache Kafka, spoken at Current 2022 in Austin, Texas, and spoken at XP Game Summit 2025 in Toronto, Canada. During his 5 years at Uken Games he contributed to several games like Who Wants to Be a Millionaire and Jeopardy. One title of note he saw from inception to completion was a game for Tim Hortons built right into the official app, Tim’s Word Challenge. Millions of Canadians have played it along with their morning coffee. He also got to work with Netflix on several unannounced games during his time at the studio. Currently, Alexei is working with various clients, both large and small to modernize and streamline their platforms with the most appropriate tools and practices. Outside of his professional life, he gives back to his community by volunteering at UofT. He also enjoys paddleboarding and attending live rock concerts to reset after long coding sessions.

**PLEASE READ:** This event will show as sold out on meetup since this event has a limit of 5 spaces and tend to book up. You can **SECURE** your seat through purchasing a ticket on https://lvlupgames.ca/products/learn-to-play-d-d-adventurers-league-dragon-delves-death-at-sunset in advance. **If you can add it to cart on the site that means the spot is still available!** **Description** Hello adventurers! Have you ever wanted to experience the world of Dungeons and Dragons but not know how to get started? In this event we will teach you character creation, core game mechanics, and go through a 60-90 minute one-shot scenario for you to test out your newly created character! These sessions are meant to be **introductory friendly for new adventurers to get their foot in the door of D&D.** With you ticket you'll receive: * Character sheet * Pencil * Set of 7 dice (D4, D6, D8, D10, D12, D20, D%) * Access to the Players Handbook **Game Master:** Nick (He/Him) Nick, has been a Dungeon Master for 10 years, experienced in many mainstream and indie RPG systems. Outside of RPGs, Nick has several years of theatre experience, being an actor in his youth and continuing his studies even now. He is upbeat and theatrical, standing and acting out dramatic action sequences and quiet emotional scenes. More than anything, Nick always tries his best to deliver an experience, something that will be a special memory for everyone.

Join us on March 26th for an exciting **AWS User Group Toronto meetup** focused on **AI-driven development with Kiro**! The evening kicks off with a presentation and live demoes showcasing how Kiro transforms the development workflow, followed by AWS experts sharing the best practices and approaches to get most out of AI-driven development. We'll wrap up with a hands-on workshop and Q&A session — Kiro credits will be provided for participants who want to explore at their own pace. As a bonus, enjoy pizza on us and take home some exclusive Kiro-themed swag! To make the most of the workshop, please come with Kiro pre-installed on your own computer and/or AWS account ready to go. **Agenda:** 6:00-6:15: Welcome Introductions, and community update 6:15-7:00: AI-driven development with Kiro - Presentation and Demo 7:00-7:30: Lessons from field - Best practices and accelerators 7:30-8:00: Workshop set and Q&A **Details:** Address: **18 York St., 7th Floor, Toronto, ON, M5J 2T8** Date: **March 26, 2026** Time: **6:00 pm to 8:00 pm EST** **Speaker:** * **Simran Singh** \- Sr\. Solutions Architect @ AWS * **Divya Jadav** \- Solutions Architect @ AWS * **Abhijith Ramesh Chandra** \- Solutions Architect @ AWS Please plan to arrive between 05:30 PM and 06:00 PM to ensure time to check-in, before the event begins at 06:00 PM. Visitors will need to present a government-issued photo ID to verify their identity and will have their picture taken to receive a visitor badge. Please wear your badge and remember to return all visitor badges to reception at the end of the visit. Parking is available onsite. There is a parking garage located beneath the building. You can pull an access ticket at the garage entrance off 120 Bremner Boulevard or Lower Simcoe Street. If you are arriving via the Union station, the building is conveniently located next to the Union station. Please enter through the main entrance on Bremner Boulevard or via the PATH Network and proceed to the elevators.

**NOTE:** This is a ticketed event. Please purchase a ticket to attend. Use promo code MEETUP30 for 30% off tickets! **Tickets here:** https://www.eventbrite.com/e/hypnosis-gone-wild-with-dave-curran-tickets-1983471602958?aff=oddtdtcreator Join the fearless Dave Curran, a master hypnotist with a twisted sense of humor, for a night of unbridled chaos and laughter. 'Hypnosis Gone Wild' is not for the faint of heart! Join the fearless Dave Curran, a master hypnotist with a twisted sense of humor, for a night of unbridled chaos and laughter. Volunteers from the audience will be transformed into hypnotized hilarity machines, performing outrageous stunts and antics that will leave you gasping in amazement. No two shows are ever the same, but one thing's for sure - you'll be talking about this wild ride for years to come! So, come and indulge in the most unpredictable, side-splitting, and downright dangerous comedy hypnosis show on the planet - 'Hypnosis Gone Wild'! All ages are welcome but viewer description is strongly advised.

**Taming the Lobster: Securing OpenClaw and Navigating the Future of Autonomous AI Agents** OpenClaw is everywhere right now. It’s arguably one of the most powerful tools for automating tasks locally, but let’s be honest: giving an AI autonomous access to your system is a massive security gamble. Between private data leaks and untrusted content, you’re basically looking at a "lethal trifecta" of risks if you aren't careful. In this talk, I’m going to skip the fluff and look at real exploits we’ve seen in the wild—from malware hiding in plugin marketplaces to remote code execution flaws that can hijack your gateway. We’ll then walk through a practical hardening checklist to lock down your setup (think container sandboxing and network isolation) so you can actually sleep at night. To wrap things up, I’ll share a few safer alternatives for those who want the power of an AI agent without the operational headache. **Speaker: Samiul Islam** **Senior AI Product Manager & Agentic Systems Specialist** Samiul is a Senior AI Product Manager based in Mississauga, recognized for architecting GenAI roadmaps and building the underlying orchestration layers that make AI agents reliable. Currently consulting for Thinkrr.ai, he leads the development AI roadmap including their AI copilot, and having voice AI build voice agents. With a foundation in Electrical Engineering from the University of British Columbia, Samiul specializes in bridging the gap between raw LLM capabilities and deterministic enterprise outputs. During his tenure at Formula.Monks, he led R&D teams to launch agentic frameworks that utilized a semantic tooling layer to ensure AI behavior remained precise and human-like. A practitioner as much as a strategist, Samiul is an active contributor to the local AI community, frequently optimizing LLMs on Apple Silicon and developing self-hosted MCP solutions. Outside of the professional sphere, he is a dedicated DIYer and health-tech enthusiast, applying his technical mindset to navigate complex personal health data. **Schedule:** 6:00 - 6:30 - Meet 'n Greet 6:30 - 6:45 - Introduction and Welcome 6:45 - 7:45 - Main Presentation 7:45 - 8:00 - Closing and Prize Draw 8:00 - ? - (Optional - whoever would like to join) Continue our conversations at Bar 6ix, 201 City Centre Drive (3 minute walk) **Where to Find Us** Conference Room 073 in the Hazel McCallion Central Library. Bottom Level. **Parking** There is a parking garage under the library. Parking is free from 6PM on.

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/yvAGbh4PpD **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.

[Summary] This meetup is for those who are interested in code, web development, design, cloud, or AI. All levels are welcome, so feel free to bring your laptop and discuss what you are working on or what you are learning. You can share your projects and ideas with other participants freely. There are outlets and WiFi, drinks are about $5 for tea, they take card only. [Price] Attendance is FREE. But you need to buy something from the venue. [Policies] \- We do not tolerate harassment of our members \- We remind users that that this meetup is intended for networking and hobby development\, and any attempts at using this meetup event as a dating platform will not be not be tolerated Further information: https://torontostack.exchange/

**We will discuss day trading, swing trading strategies and tools.** This will not be a presentation format. We will discuss options trading and investing strategies, as well as the skills needed to start. It is a **casual meetup to meet people who are interested in trading or building a career around it, especially algorithmically. No "financial gurus" are welcome.** Join us for a meetup where we share trading ideas, and connect with others who share a common interest in investing. Algorithmic trading is commonly used by large institutional investors and market makers, but it is also accessible to retail traders. It offers several advantages over manual or discretionary approaches—particularly in minimizing psychological errors that often impact human traders. Some of the topics we usually discuss: \- Reasons for investing \- Limitations of being a retail trader \- Practical tools: brokers\, APIs\, data sources\, real\-time implementation \- Brainstorming ideas: strategies that may be working today **Note this even is not sponsored or endorsed by any business where we are meeting. We are just using their space for casual meetup event.** **Please no promotion of MLM, pyramid schemes, self promotion to paid services, affiliate promotion, paid subscriptions or similar stuff.** **Useful Links** * Notion page of [Algo Trading Resources](https://systemetic.notion.site/Algorithmic-Trading-Resources-fe400c5258e440fd8a4d63770d08bc13) **Telegram group for quicker communication:** [https://t.me/+m8BMRABGX74xNmZh](https://t.me/+m8BMRABGX74xNmZh) **Disclaimer:** This meetup is for educational and informational purposes only and should not be construed as professional financial advice. The discussions and materials presented at this meetup are provided as general information and are not intended to be a substitute for professional financial, legal, or tax advice. All participants are encouraged to consult their financial advisor or qualified professionals regarding specific financial issues. None of the organizers, speakers, or participants at this meetup are liable for any financial loss or damage incurred as a result of trading activities or decisions based on the information shared during this event. Trading stocks and other financial instruments involves risk and may not be suitable for all individuals. **CFTC Rule 4.41:** Futures, foreign currency and options trading contains substantial risk and is not for every investor. An investor could potentially lose all or more than the initial investment. Risk capital is money that can be lost without jeopardizing one’s financial security or lifestyle. Only risk capital should be used for trading and only those with sufficient risk capital should consider trading. Past performance is not necessarily indicative of future results. **Non-Endorsement**: References to specific securities, investment strategies, or any financial instruments during the meetup are for illustrative purposes only and do not constitute a recommendation, endorsement, or investment advice by the organizers or speakers. **No Guarantees**: There is no guarantee that the investment strategies discussed will be profitable or protect against loss. All investments involve the risk of loss. **Conflict of Interest**: Presenters or organizers may hold or intend to acquire positions in securities discussed during the meetup, which may create a conflict of interest.

**SUBSCRIBE TO [THE MAILING LIST](https://torontorationality.beehiiv.com/). EVENTS ARE NO LONGER POSTED HERE.** ​Arguing about important things doesn’t usually lead to people changing their mind. Double Crux is a technique for making discussions more productive and understanding the actual reasoning of those who disagree with us. Sometimes it even helps to better understand the foundations of your own beliefs. Together, we'll learn about [Double Crux](https://www.lesswrong.com/posts/ya59PtGeYnCG25eWn/double-crux-in-a-box), and then break into pairs with someone we disagree with to practice finding out why our views are different and what might change our minds. ## Location Enter the Mars Atrium via University Avenue entrance. We'll meet at the food court in the basement. I'll be wearing a bright neon yellow jacket. ## Detailed Directions to the Food Court Enter from University Avenue and walk east until you see escalators. Take the escalators down. The food court is to the east of the escalators. If you are lost/confused, ask a security guard to direct you to the food court. [This event is cross-posted from LessWrong.](https://www.lesswrong.com/events/wuMwSJJEKZHfccoRs/toronto-acx-meetups-everywhere-spring-2025)

**First meetup of the Columbus AI Engineering group.** We’ll kick things off with a practical, beginner-friendly discussion on: **How LLMs like ChatGPT actually work — and how to build real applications with them.** We’ll cover: * what’s actually happening under the hood (at a high level) * why LLMs behave the way they do (hallucinations, prompt sensitivity, etc.) * how people are building real systems with them today * where things break in practice This will be a **short, informal talk (\~15–20 min)** followed by open discussion and Q&A. Whether you’re an engineer, builder, or just curious about how modern AI systems work, you’re welcome to join. No slides, no fluff — just real conversation about real systems. We’ll hang out afterward and get to know each other.

**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** Web Forms gave .NET developers a powerful abstraction for building reusable UI controls long before design systems were a thing. Web Components finally bring that same idea to the browser natively. This session explores how the Web Forms mindset translates into Custom Elements, Shadow DOM, and HTML templates. We’ll examine how Web Components enable design systems that work across frameworks, how they differ from server‑driven controls, and why they’re becoming a foundational layer for modern UI. Whether you’re maintaining legacy apps or building greenfield projects, you’ll leave with a practical understanding of how to apply familiar patterns in a modern, standards‑based way. **YouTube Link** TBA

If you enjoy knitting, crocheting, working with yarn, this is the group for you. Meet new friends, bring your projects, learn from others.
We normally meet a few times a month during the week from 6-8pm. We will occasionally meet on weekends during daytime hours.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: Type Annotations with John Cassidy We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

**New 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 topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

12:45-3:45 in the Meeting Room on the library lowest level. Bring your yarn projects, meet new friends. If you plan to attend, please RSVP yes. If you can’t attend, please change your RSVP to no. This helps anyone who is waitlisted and it allows me to have an accurate count of attendees as our space is quite limited. Plenty of parking in the lot, in the overflow lot across the street, and on the street. See you there! Winter Note: If the weather is bad and I have to cancel the Meetup, i will issue the cancellation not later than 3 p.m. of that day.