Esperanto

Welcome back to our meetup in April. The date is right before the GITEX AI Asia conference held at the Marina Bay Sands Convention Centre. * **06:00 PM** Registration, dinner, networking * **06:30 PM** Talk starts Talk #1: Powering AI Agents/Apps with contextual data from more than just the default vector search Description: Most solutions showcase vector search as the default search mechanism to power AI applications. But it is often not the most effective solution. In this demo, we will showcase different search techniques and hybrid approaches for retrieving contextual data with MongoDB. Talk #2: Real Practical RAG, from Demo to Production - in a 10,000-person organization and an intelligence org Moving from controlled demos to real-world deployment exposed several challenges that are easy to underestimate. In clean demos, our prompts/queries are often well-formed and datasets are neatly curated, and we test the happy paths. But real users behave very differently. We observed clear gaps between how users express intent and how that intent is represented in the embedding space (leads to irrelevant/missed retrievals). This made retrieval design and chunking strategy critical: how documents are split, indexed, and ranked directly impacted whether the system could “understand” a query. Additionally, as the dataset scaled with many similar or overlapping documents, retrieval became noisier - every vector is similar to a lot other vector - making it harder to consistently surface the right information. These challenges highlight that building a production-ready RAG system is not just about ensuring our datasets and RAG method works, but also user's intent and behavior. TBA: We will have a 2nd speaker talking about AI in real use cases in intelligence orgs either in this meetup or the next meetup. More details for the 2nd speaker are still being prepared.

We had a badminton session at **Braddell Heights Community Club, behind NEX Shopping Mall,** on Tuesday night **7th April 2026**. Welcome all High Beginner and Low Intermediate players to join us for some badminton work out. * 7:30pm - 9:30pm * High Beginner and Low Intermediate Players. * Court 2 * 2 hours per session * S$10 per session * Shuttles provided (RSL Supreme) * Location: 50 Serangoon Avenue 2, #01-01, Singapore 556129 * Do join us if you are available.

Evening coffee/tea session followed by dinner later, to meet new friends, exchange and share different cultures in a group event - group experience sharing is one of the best way to know your new friends ;-) Hey everyone, we will be at the the tables right in front of the Old Chang Kee, at the outdoors! Hope to see you soon! Closest MRT is Bugis and City Hall. Event Etiquette: • Please understand that this is not a business networking group, and please don't sell MLM (multi level marketing) here. You may still exchange numbers but it will be at your own discretion. • The organizer has the right to ban members from attending events and from the group.

**Discover the Healing Power of Pranic Healing & Twin Hearts Meditation!** Join us for a complimentary introductory talk, meditation, and healing event on every Tuesdays, 7.30pm\~9.30pm. Pranic Healing is a powerful energy healing modality that can help you achieve better physical, emotional, mental and spiritual health. It is a non-invasive, non-touch healing technique that uses prana, or life force energy, to cleanse, energise, and balance the energy body. During the introductory talk, you will learn more about Pranic Healing, how it works, and the many benefits it can offer. You will also have the opportunity to experience Pranic Healing for yourself with a complimentary session from our Pranic Healing volunteers. In addition to the introductory talk and healing session, you will also get to experience Meditation on Twin Hearts. This meditation is a simple yet powerful practice that can help you achieve inner peace, harmony, and love. It is also a great way to connect with your higher self and with the divine. This event is open to all ages 16 and above, but registration is required. To secure your seat, please sign-up at the link below. We hope to see you there! **Date:** Every Tuesdays **Time:** 7.30pm-9.30pm **Venue:** Downtown Gallery #02-09/10 Open to All, including public, who are 16 years of age & above. *Complimentary!* [Register your seat](https://form.jotform.com/210080203650438)

Welcome back to Rumble. This month our focus is to help you climb stronger, descend safer, and move more confidently on hikes. We’ll keep our 4 core stations — feet and calves, engine, climbing strength, and downhill control — so you can actually feel progress over the weeks, not just get through a workout! **Meeting Place:** as seen in the image (Right next to Old Hill Street Police Station; opposite Funan) Accessible via different MRT lines and bus stops 3 min walk from Clarke Quay Stn Exit E **Duration:** 1.5h **Level:** Mixed Levels (but make sure you are physically well before attending) **What to expect:** 1. Warm-up & dynamic stretching 2. Stamina, Stability and Single Leg strengthening exercises with Stairs/Steps :) 3\. Jogging/brisk\-walking between stations **Items to bring/wear** * comfortable sports attire and appropriate shoes * (Arm-length) Towel and water bottle * Most of us will be carrying our bags as part of hike training (you can choose to leave them in your car if you’re driving or bring a small bag) Make sure you are able to run with your bag! (e.g. BACKPACK) **Note:** * In the event of wet weather, the event will be cancelled. However, if it is just a light drizzle, we may still proceed with caution or head to AU office for Signature Indoor Workout. * If you will be late or unable to make it, please inform me in advance (WA +6597318648) or update your RSVP by 8 p.m. the night before so that I can inform the next person on the waitlist. * We’re capping this at **20 pax per session** so it stays focused and manageable. * Priority will go to 2026 AU trip participants and Elite AU club members. If there are slots left, it will be given to members of the publi.c If you’re on the waitlist, it may not move strictly in order as trip participants are prioritised. We will start on time so come at least 5 minutes earlier! If you’ve done Rumble before, you already know what this is about. If you haven’t — come try once. You’ll either love it or hate me slightly. Both are acceptable. Join us for more adventures at: https://bit.ly/3Rv6XrT
Telegram: https://t.me/liveopenly
Whatsapp Community https://bit.ly/AUBroadcast

Please be reminded that participants should already know at least all Hiragana, Katakana letters and basic grammar.
Important points to remember: 

(1) Participation for the purpose of dating or solicitation is also strictly prohibited. 

(2) We are usually seated somewhere in front of the fruit and juices store 

Q. Do I need to pay?
A. No! All the native Japanese participants are volunteers.
【日本語を教えるボランティア募集】
・このグループでは一緒に日本語を教えてくれるボランティアを募集しています。
・今のところは隔週１回、水曜日に開催していますが、ボランティアが増え次第、頻度を増やしていこうと考えています。
・今のところ中級、上級レベルの学習者がメインで、日本語を使い会話練習するだけなので、日本語を教えたご経験が無くても問題ありません。
・興味がある方は、気軽に参加下さい。

We have one afternoon badminton Session at **Saint Gabriel's Secondary School** on **Sunday 12th April 2026**. Welcome all High Beginner and Low Intermediate players to join us for some badminton workout. * 12:00pm - 2:00pm * High Beginner and Low Intermediate Level Players. * Court 1 * 8 Players Max * 2 hours session * S$10 per session * Shuttles provided (RSL Supreme) * Location - 24 Serangoon Avenue 1, Singapore 556140. * Do join us if you are available.

Contact: WhatsApp +6588016138 or +6586521735 Let's practice Russian language together in a friendly & casual atmosphere. We will have free conversations in Russian, get to know each other, play language games, or learn from other advanced or native speakers. We will try to divide learners into groups based on their levels of proficiency. Please let the organizers know your level when you sign up. Native and advanced speakers, please feel free to come share your knowledge of Russian language & help others to learn. We need as much help as possible! No teaching experience required. FAQ Q. I have never learned Russian, is it OK to join? A. Check with the organizers if there is a beginner group at the moment. Q. Do I need to pay? A. No! This event is free. Q. I can't find the organizer and the group, what shall I do? A. Please send a WhatsApp or call +6588016138 or +6586521735

We had a badminton session at **Bidadari Community Club@Woodleigh Mall** on Sunday **12th April 2026**. Welcome all high beginner and Low Intermediate players to join us for some badminton workout. * 10:30am - 12:30pm * Low Intermediate and above Player Only. * Court 2 * 2 hours per session * S$10 per session * Shutter provided (RSL Supreme) * Location - Bidadari Community Club, 11 Bidadari Park Drive 367803. * Do join us if you are available.

안녕하세요, Have you been watching a lot of Korean dramas, but can't get past "안녕하세요" (annyeonghaseyo) and "감사합니다" (kamsahamnida)? Or simply want to say out a line from a drama? join us to pick up some Korean at Saturday Korean: 토요일 한국어. It is best that you already have some working knowledge of the Korean language so that you will have a smoother conversation. All our language-learning meetup events are free of charge. WE WANT KOREAN SPEAKERS TOO! We are on a constant lookout for proficient Korean speakers (not necessarily native) to come and share their knowledge of the language and culture. If you speak the language, come join us, help others learn and make lots of friends. See you there! 한국어 화자를 기다리고 있습니다! 유창한 한국어 구사자 (반드시 원어민일 필요는 없음) 분이시라면 저희와 함께 언어와 문화에 대한 지식을 공유해보시는 건 어떨까요. 다른 한국어 학습자들이 한국어를 배우도록 도와주고 많은 친구도 사귀어 보세요. 곧 만나요. 1. NO COMMERCIAL ACTIVITIES We welcome anyone who is keen to learn a language or help others learn the language. However, this is NOT the platform for individuals who have other intentions, such as recruiting members for their business or organisation or selling products or services. We will not hesitate to ask such individuals to stop attending our meetups if they have been found to be pestering our members for such purposes. 2. GETTING THERE Nearest MRT station: Promenade MRT Station. LOCATING US INSIDE THE FOOD COURT When you arrive in the food court, look out for groups of people and ask them if they are there for a meetup. We are usually seated against the wall near the Penyet & BBQ stall, but this may vary. You can also send the host a text message via Meetup.

We have one afternoon badminton Session at **Saint Gabriel's Secondary School** on **Sunday 12th April 2026**. Welcome all High Beginner and Low Intermediate players to join us for some badminton workout. * 2:00pm - 4:00pm * High Beginner and Low Intermediate Level Players. * Court 1 * 8 Players Max * 2 hours session * S$10 per session * Shuttles provided (RSL Supreme) * Location - 24 Serangoon Avenue 1, Singapore 556140. * Do join us if you are available.

Keen to pick up some Japanese? Come and learn Japanese with us. Everyone is welcome, regardless of proficiency level. **日本語に興味ありますか？ Japanese Speaker Wanted!** カジュアルに日本語を学びます。初心者から上級者まで、日本に興味がある人の参加待ってます〜 If you speak Japanese and would love to share your knowledge of the language, please come help others learn. *** GETTING THERE Nearest MRT station: Promenade *@ Downtown (blue) Line or Circle (yellow) Line* Other MRT stations: Esplanade *@ Circle (yellow) Line*; City Hall *@ North-East (red) Line* LOCATING US INSIDE THE FOOD COURT We are seated in middle of the food court where there are long tables. Look for groups that look like they are studying rather than merely eating. You can drop the Event Host a message if you are lost. NO COMMERCIAL ACTIVITIES We welcome anyone who is keen to learn a language or help others learn the language. However, this is NOT the platform for individuals who have other intentions, such as recruiting members for their business or organization or selling products or services. We will not hesitate to ask such individuals to stop attending our meetups.

Let’s try this popular Italian restaurant in Reynoldsburg. This is the menu: https://scaliristorante.com/#4e468054-0235-43e2-81c2-44e061341e9e

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

**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

The topic for April is "Water" Speak Easy: true stories, told live. The idea is simple: an audience, an open microphone, and great stories. Hilarious, gripping, poignant- it's up to you. Audiences are invited to come to listen or come to tell as folks from all corners of Columbus offer their stories live on stage! Held at Wild Goose Creative's warm, intimate space, this night of tales occurs on the 3rd Thursday of every month. Doors open at 6:30 pm, show starts at 7:00 pm. Please arrive early if you want to tell, as we generally only have room for a limited number of tellers, and the sign-up sheet has a tendency to fill up fast. Formed around the idea that people need stories--they're what hold and draw us together--SpeakEasy celebrates the strangeness and commonness of being human. And in a world of smartphones, Facebook, Twitter, and more . . . it gives people a real, breathing, in-person way to connect. The night is geared for true stories of all kinds, taking the best tales told around kitchen tables, in darkened pubs, on the street corner, and at late-night parties and giving them an audience. Speak Easy is also a great outlet for performers, writers, and artists looking to share their favorite stories and perfect their skills. We strongly encourage tellers to please tell the story rather than read it so we keep within the spirit of good storytelling and stay engaged with the audience. All are welcome. Hang around after the show for a drink and build community!

Let's grab some coffee/food and share a morning chat! The East Market has an ample parking lot and outdoor and indoor seating. Grab a cup of coffee from Winston's Coffee & Waffles or on your way to East Market and meet us on the second floor - table behind or east of the elevator. Per what this group is about: "Everyone is welcome! International transplants to Columbus who want to improve language skills, Columbus residents who want to discuss international travel and culture, and anyone who enjoys getting together for good conversations."

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads**®**, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

While some are still meeting online, this is an in person event. Please note that we have attendees of all levels of speaking, including some native speakers. All are welcome! Also, as we meet at the same time and place each week, many don’t RSVP on the app, so we will likely have more attendees than noted here. Note: if you are asked to pay and upgrade the Meetup app, this is not necessary. You can ignore this and still attend our meetings. Find us on our [Facebook group](https://www.facebook.com/share/g/1EKw86WJCp/?mibextid=wwXIfr).