Data Structures

[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/

Best way to get a hold of us is on our [WhatsApp chat](https://chat.whatsapp.com/KpFOsXEuXRWB7uOYorJNPU), also great way to join a community of amazing like-minded people :) Canada SBK brings you a Saturday afternoon salsa social in the heart of Toronto at the warm and cozy space of Trinity St. Paul church. Admission includes: DJ Geronimo's top Salsa, Bachata & Cha cha Latin hits. It's an excellent opportunity to practice and improve your dance to the tunes of world Salsa music by DJ Geronimo and guest DJs. Have a favourite song ? We're also accepting music requests Atmosphere: Friendly and Laid back. Dancers of all levels are welcome for social (No partner required) Door: $10 FREE LESSON (with admission to social dancing) 3:30pm SOCIAL DANCING 4:30pm-7:30pm \*Please check calendar as in some rare occasions time changes slightly Please check calendar as in some rare occasions time changes slightly Social dancing Venue: Trinity St. Paul Church, Bloor St. W, Toronto Bring your own beverage and snacks Everyone is welcome! Join our WhatsApp group: [https://chat.whatsapp.com/Kj63TzHIqYL5hPrRJolhyD](https://chat.whatsapp.com/KpFOsXEuXRWB7uOYorJNPU) Hosts: Maya & Gary Canada SBK (Formerly TSF)

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.

join us the Rockpile for Police Tribute Band. Cost ix 23$ at the door or at the following link . https://www.ticketweb.ca/event/message-in-a-bottle-rockpile-rock-bar-tickets/14773133

～English description below～ イベント参加費として、日本人の方(日本で生まれ育ち、現在英語を勉強している方)は$2、日本人以外の方(日本語を勉強している方)は$5頂いております。 皆さんから頂いたお金は、こちらのサイトの維持費や将来のランゲージエクスチェンジ施設利用料やソーシャルイベント等のために使われます。ご理解の程、よろしくお願いいたします。 予約受付開始：土曜日5:00PM 予約取消締切：土曜日14:00PM(当日) 予約受付締切：土曜日15:00PM(当日) スケジュール 5.15 PM - 5:30PM - チェックイン、グループ分け 5:30 PM - 6:15PM - 日本語の時間［または英語の時間］ 6:15PM - 7:00 PM - 英語の時間［または日本語の時間］ 【イベント内容】 Language Exchangeへようこそ！このグループでは、皆さんのレベルに応じて、3〜4名のグループにわかれ、同じ席になった人たちで各45分間、それぞれ英語と日本語でフリートークを行なっていただきます。決まったディスカッショントピックなどはございませんので、気軽に質問をしながらそれぞれのセッションを楽しんでいただければと思います。 開催場所：Atrium フードコート TJEXのサインボードを持ったオーガナイザーにお声がけください。(もしサインがなかったり、わからなければメッセージをお願いします！) 予約規約（⚠️重要） ・当日の不参加、もしくは15分以上の遅刻、また予約取消締切後の変更は原則不参加(No-Show)とみなします。不参加(No-show)が3回になりますと会員登録が抹消され、退会となりますのでご注意ください。 ・イベントに遅れそうな場合は必ずオーガナイザーまでメッセージをお願いします。イベント開始時間にいるメンバーでグループを組み直すこともあるので、連絡なしで到着された場合はイベントに参加できない可能性もあります。原則、30分以上遅れての参加はご遠慮いただいております。あらかじめご了承ください。 キャンセル待ち ・満席の場合、”キャンセル待ち”リスト(waiting-list)にご登録いただくことが可能です。“参加予定”リスト（going-list)中に空席が発生した場合は、”キャンセル待ち”への登録が早かった方を優先に、オーガナイザーが”参加予定”へ移動しますので、当日の参加状況の変更がないかご自身でご確認ください。 ※ご注意※ ・空席ができた際は、自動的に”キャンセル待ち”より”参加予定”へ変更されます。この時にMeetupよりお知らせがあるかはわかりません。 ・システムにより自動的に”参加予定”とされ、それに気づかずに参加しなかった場合でも、不参加とみなされますのでご了承ください。 Instagramアカウント @tjex.ca 最新情報やミートアップの様子を掲載しています。 ぜひこちらもフォローお願いします！ *** ***Although our group is a non-profit organization, we collect $ 5 per English Speaker for every event. All the proceeds are used to run this website and for social events*** RSVP: RSVP open: 5:00 PM RSVP cancel deadline: Saturday, 2:00 PM (day of the event) RSVP close: Saturday, 3:00 PM (day of the event) Day of Event: 5:15 PM - 5:30 PM - Check-in and Group placement 5:30 PM - 6:15 PM - Japanese conversation 6:15 PM - 7:00 PM - English conversation Event Description: This is an in-person language exchange! Members are placed into groups of three or four based on their language level. Each 45 minute session consists of friendly casual conversation, and/or informal study. Optional Dinner : After the Language event, we usually go for Dinner. Dinner is optional, you may or may not join the Dinner, it depends on you. However, Dinner is only for Participants that joined on the day of the event. Event Location: Atrium Food Court The food court is directly connected to the Dundas subway station. Leave the subway station and walk west along Dundas Street. At the intersection of Bay Street and Dundas Street, you will find an entrance. Proceed down the escalator. The food court is on the basement floor. Please talk to the organizer with the signboard showing TJEX. (If you can’t find them, please send a message to the organizer.) ⚠️RSVP & Late Policy: If you are unable to join on the day of the event, please change your status from 'going-list' to 'not going-list'. Failure to Not show up will result in 1 No -Show. Also, in case of arriving 15 mins late to the event will result in 1 No-Show. Members are removed from the group after 3 No-Shows. Waiting List: Members can join the waiting-list even if an event is full. When a spot becomes available, we will move you to the going-list. Going List: Only Members on the going-list can participate on the day of the event. Group Instagram - @tjex.ca Feel free to follow us!

CN Tower - $59 + Tax Ripley's Aquarium - $50 + Tax Food - Pay yourself.

**Join [TILE.]** at the **most popular Saturday Language Learning Social Event & Party in Toronto! 🍁** **[TILE.] = Toronto International Language Exchange [Instagram](https://www.instagram.com/tilelearning/)** **[TILE.]** now has a **2-for-1 special event,** which includes: **1.** From **[6:30 - 7:15 PM](https://www.meetup.com/english-class-with-certified-award-winning-teacher):** An optional new $5 small group 45-minute **[English language class](https://www.meetup.com/english-class-with-certified-award-winning-teacher)**[ ](https://www.meetup.com/english-class-with-certified-award-winning-teacher)led by a certified language teacher **2.** From **[7:15 - 11 PM](https://www.meetup.com/biggest-language-party-event-social-in-toronto):** Our usual huge group **[BIGGEST LANGUAGE EXCHANGE SOCIAL EVENT AND PARTY IN TORONTO](https://www.meetup.com/biggest-language-party-event-social-in-toronto)** (Cost: *$5, unless you already paid for the same day 6:30 English class right before, in which which case the 7:15 social is FREE)* Both events happen Saturday on the 2nd floor of the Madison Pub (14 Madison Avenue). ***Attend either or both events for $5!*** Meet Toronto locals and international friends. Talk to language teachers and speakers to learn English, French, Korean, Japanese, Spanish, and much more! Join us for board games, conversation, dancing, singing, and more! Make sure to get a nametag from one of our helpers. *You **must** read the full event description below before attending. By attending, you agree to all the terms listed.* **[TILE.] Toronto International Language Exchange** event details: * We are on the 2nd floor of the Madison pub on the patio with all the international flags! *The dance floor opens around 10 PM, and the live piano bar singer start around 10:30 on the 1st floor.* **PAY** **$5** right at the event by **CASH, CREDIT, or DEBIT**, or **SEND $5 E-TRANSFERS** to: **TILETORONTO1@GMAIL.COM**. You can also support the bar by buying a drink or appetizer. \-\-\-\-\-\- **IMPORTANT DISCLAIMER – Meetup Group** By attending any TILE events, including these ones, you acknowledge and agree to the following: * *The organizers and hosts of TILE events are are not liable for any loss, injury, damage, or other unforeseen outcomes that may occur before, during, or after any event.* * *Participation in TILE events is entirely voluntary and at your own risk. You are solely responsible for your own safety, personal belongings, transportation, behavior, and well-being. It is your responsibility to assess the risks involved in any activity or location and to act accordingly.* * *TILE and its organizers do not provide insurance and cannot guarantee the safety, accuracy of information, or quality of venues, third-party services, or other attendees.* * *By attending, you release TILE, its organizers, and affiliates from any and all claims or liability, and you agree to conduct yourself respectfully and in accordance with local laws and venue rules.* * ***If you do not agree with this disclaimer, please do not attend TILE events.***

Meet other Day Traders, Swing Traders, Investors, and More! We're leveling up the meetup experience with a brand new venue! We've got the upstairs space at the newly opened **MooMoo Yorkville** all to ourselves. **95a Bloor St W, Toronto, ON M5S 1M1** 🕓 **4:00 PM – 6:00 PM** 👥 **25 spots only — RSVP required** Here's how the afternoon runs: MooMoo will kick things off with a quick presentation on their platform, then the rest of the time is ours. Talk markets, share what you're watching, ask questions, compare strategies, or just connect with like-minded people in the city. Whether you're a seasoned day trader or just getting started, you belong here. All levels welcome. **Bring your laptop, a notepad, whatever helps you think.** This is your time to learn, share, and connect. Join our Free Telegram to stay updated: [https://t.me/+m8BMRABGX74xNmZh](https://t.me/+m8BMRABGX74xNmZh) ⚠️ *Spots are limited to 25 people. Please only RSVP if you plan to attend — this is a small intimate setting and every spot counts. If your plans change, please release your spot so someone on the waitlist can join.* See you there! 📈 Disclaimer: This meetup is for educational and networking purposes only. Nothing discussed at this event constitutes financial advice. Always do your own research and consult a qualified financial advisor before making any investment decisions. This event is not affiliated with or sponsored by MooMoo unless otherwise stated.

한국어는 아래를 참조하세요! A warm welcome to CanAsian Station’s In-Person English x Korean Meetup! A weekly event where we invite you to enjoy sharing language and culture with each other. *Beginners are welcome, what’s important is you’re willing to learn! - Short on ideas? Fear not! We provide new topics each week ,also doubling as study material! Our participation fee is **$5 per event**. All fees are to be E-transferred to canasianstation@gmail.com We also accept payment in cash, but please be advised that E-Transfers are preferred. Looking very forward to meeting and sharing with you all! 😊 📍Location: Go to the food court downstairs. ⚠️ [Notice] Booking & Tardiness Policy We do not accept walk-ins. Please ensure you sign up in advance. We do not accept members who are more than 30 minutes late. Please be on time. No refunds will be provided for tardiness or no-shows. CanAsian Station의 대면 영어 x 한국어 만남에 오신 것을 환영합니다! 매주 열리는 행사로, 여러분이 서로의 언어와 문화를 나누며 즐길 수 있는 자리를 마련합니다. 초보자도 환영합니다! 중요한 것은 배우고자 하는 마음입니다. 아이디어가 부족하다면 걱정 마세요! 매주 새로운 주제를 제공하며, 그 주제들은 학습 자료로도 활용됩니다! 참가비는 **행사당 5달러**입니다. 모든 요금은 canasianstation@gmail.com으로 E-Transfer를 통해 송금해주세요. 현금 결제도 가능합니다만, E-Transfer를 선호합니다. 여러분과 만나고, 함께 나누게 될 것을 기대하고 환영합니다!😊 📍장소: 지하에 있는 푸드 코트로 와주시길 바랍니다 ⚠️ [필독] 예약 및 지각 관련 규정 안내 현장 접수 불가 (No Walk-ins) 사전 예약 없이 방문하실 경우 참여가 불가능합니다. 반드시 미리 신청해 주세요. 30분 이상 지각 시 입장 제한 (30-Minute Late Limit) 모임 시작 후 30분 넘게 늦으시는 분은 참여하실 수 없습니다. 시간을 엄수해 주세요. 지각이나 당일 불참(노쇼)으로 인한 환불은 불가합니다.

Cost: $16 per person (includes feather birdies). Plastic birdies are available upon request. Payment: Cash is preferred and should be made before playing. E-Transfer (EMT) or debit card payments are accepted (plus applicable taxes). Time: Sundays, 9:00 AM – 12:00 PM Location: 1370 Birchmount Rd, Unit #6 (Closest intersection: Birchmount Rd & Lawrence Ave) Requirements: Racquets: Bring your own racquet. Rentals are available at the club if needed. Shoes: Please bring indoor gym shoes and change into them at the club before entering the courts. Winter Reminder: Ensure you change into court shoes before stepping onto the courts during the winter months. Rules and Guidelines: No outside food is allowed. This meetup is open to players of all skill levels (beginner to advanced). The primary purpose is to play friendly doubles games. This event is not intended for singles matches or formal training sessions. Attendance is capped based on court availability. Waitlisted participants may be moved to the confirmed list as space allows, with priority given to regular attendees and those with reliable RSVP history. No Drop-ins: Only individuals on the confirmed “Going” list are allowed to attend. Unregistered participants will be asked to leave. Cancellation Policy: Please cancel at least 48 hours in advance if you cannot attend. Failure to do so will result in being marked as a no-show. Repeated no-shows may lead to removal from future “Going” lists.

Tentative based on weather. Time and day may be changed depending on weather You must be able to play strong 3 hit volleyball and have good ball control. The event is $5 cash payment only. You will be partnered with others of the same skill level. Please note that you must know FULL beach rules. You MUST answer the RSVP question to play this event. If your answer is wrong or you do not answer then you will be removed from the event. The question or your response may not show up when using some apps so please RSVP from a computer. Beach Rules - [#1 Beach Volleyball and Social Group Discussions](https://www.meetup.com/beach-vball/discussions/) Requests to play together must be submitted in your RSVP answers when you sign up and must be requested by each player so must be mutual requests. You can request to play with 1 other player. Beyond one player is not guaranteed Since sign ups will be limited it is very important that you show up if you sign up. You MUST provide an email address to sign up for the event in the rsvp question every time you sign up to confirm your sign up. RSVPs will be removed for if email is not included in RSVP King of the court Ladder format will be used Please only join the waiting list if you intend to play if added from the wait list. If your plans change please remove yourself from the wait list. You MUST answer the RSVP question and provide your first name and email address. If you do not answer the question and provide this your RSVP will be removed Since this is a team sport event, the proper number of players is very important. RSVP changes less than 72 hrs before any event that is full/has waitlist or 48 hrs before any events not full will to be considered a late bail-out. Late bail outs or no shows will be assessed a "strike" 2 strikes and you will be suspended from participating in group events. PLEASE DO NOT SIGN UP FOR THIS LEVEL IF YOU ARE A RECREATIONAL PLAYER AND ARE NOT CAPABLE OF CONTROLLING THE BALL TO PASS, SET AND SPIKE. If the event is full, put yourself on the waiting list. Spots can free up the week of the event as people change their minds. Instructions will be sent out 1 or 2 days before the event. In case of rain check the "Bad weather guidelines" in Discussions/messageboard/volleyball discussions

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 for etransfer is: lingseilau@yahoo.com

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **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

**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** TBD **YouTube Link** TBD

**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: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. 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

**💥 Join us THIS Saturday and EVERY Saturday!** **💥 At Columbus’ Hottest New Salsa Venue!** **.** Lincoln Street Salsa THIS Saturday and EVERY Saturday! 8 pm – 1 am **.** **💥 Gorgeously Renovated Studio!** **💥 Free Parking!** **💥 BYOB!** **💥 Easy Access from Highway!** **.** Lincoln Street Salsa 1717 Brice Rd Reynoldsburg, Ohio 43215 **.** **ENTRANCE IS ON THE NORTH SIDE OF THE BUILDING** **Behind Anthony’s Pharmacy!** **.** **PLEASE SHARE and help get the word out!** **.** **🟣 Salsa, Bachata, and Merengue Dancing!** **.** **🟣** 8:00 pm – 8:30 pm **𝗥𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻** **.** **🟣** 8:30 pm – 9:30 pm **𝗕𝗲𝗴𝗶𝗻𝗻𝗲𝗿 𝗗𝗮𝗻𝗰𝗲 Class!** **.** **🟣** 9:30 pm – 1 am **𝗢𝗽𝗲𝗻 𝗗𝗮𝗻𝗰𝗲 𝗣𝗮𝗿𝘁𝘆!** **.** **✅ Questions?** **Visit [LincolnStreetSalsa.com](https://columbussalsadancing.com/)** Or Text Todd: 614-774-8146 **.** **✅ No Experience Necessary!** **✅ No Partner Required!** **✅ Plenty of People to Dance With!** **.** **✅ $15 Cash / $16 Card** **✅ College Students $5 Off with Valid ID!** **✅ BYOB** **✅ Age 18+** **.** **✅ Lincoln Street Salsa is the perfect place for…** **.** **👉 Learning to Dance** **👉** Social Dancing **👉 Birthday Celebration** **👉** Bachelorette Parties **👉 Girl’s Night Out** **👉 Date Night** **👉** Getting Fit / Burning Calories **👉 Meeting New People** **👉** Having Fun, Fun, Fun! **.** ✅ **Questions?** Visit [LincolnStreetSalsa.com](https://columbussalsadancing.com/ "https://columbussalsadancing.com/") Or Text Todd: 614-774-8146 .

**Abstract:** This is a practical playbook for building a production-grade data lakehouse. It walks through foundational principles — naming conventions, least-privilege access, automated CI/CD testing — before diving into medallion architecture. Furthermore, metadata-driven design patterns show how configuration tables and dynamic notebook orchestration eliminates hard-coded pipelines. The deck covers star schema modeling, guidance on choosing between Spark, Pandas, and SQL, and data quality enforcement using DQX with YAML data contracts. Finally, we dive into security best practices and performance optimizations. **Host:** Justin Shea, Mehdi Jeddi, Erik Pak, and Sou-Cheng Choi **Talk Format:** 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:** Adyen, UIC College of Business, and PyData Chicago co-host this event. UIC will provide the meeting site. Adyen will sponsor pizza and soft drinks for the onsite participants. **Address:** University of Illinois - Chicago, Douglass Hall, Room 220, 705 S Morgan St, Chicago, IL 60607 **Logistics:** “UIC Douglass Hall” is recognized on Google Maps, which can guide you through campus. Once you arrive, proceed to the second floor, room number 220

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

**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