Computation

Date: 30 May 2026 (Sat) Time: 15:30 - 18:00 \*HKT Coordinator: Ming Tou, Alex Au Light Refreshments will be available! This is a **workshop** for Python Data Cleaning. Please bring along your laptop with **Python3 installed with enough battery**! *Winners will get a small prize as an accomplishment **in the next meetup**.* **Due to the university entrance policy, we are currently closed for new university QR code entrance registration. Please feel free to join us by registering yourself under the university entrance counter!** ***Mind the Data Gap*** **This model will be delayed due to: missing values, outliers, and delimiter congestion.** In this hands-on HKPUG workshop, we are turning a Python data cleaning exercise into a gamified team sprint. You will work with a **synthetic Hong Kong-inspired transport dataset**. The data is messy on purpose: missing values, weird outliers, inconsistent categories, URL-encoded station names, confusing delimiters, and fields that look useless until you extract the hidden signal. Your mission is simple: **Clean the data. Extract better features. Run the scorer. Beat the model.** You do not need to tune the model. You need to **rescue the data**. ***How the Challenge Works*** Teams will write a Python data transformation script to clean and enrich the dataset. Our scoring pipeline will then: 1. Run your transformation on the training and test data 2. Remove any label / target leakage columns 3. Train a fixed Gradient Boosting model 4. Evaluate the model using proxy metrics such as F1 and ROC-AUC 5. Convert the result into a data cleaning score This is not meant to be a perfect data quality metric. It is an accessible proxy: if your **cleaning** and **feature extraction** help the **model perform better**, your team gets a better score. **Capacity:** 60 (Team of 4) **Venue Info:** City University of Hong Kong, Kowloon Tong (Exact Location TBC) **Rundown:** **30th May** **15:30 – 15:40** Opening Remarks, Team Formation & GitHub Setup **15:40 – 15:55** Briefing: Data Traffic Report, Challenge Rules & Scoring Pipeline **15:55 – 16:20** Demo: Messy Dataset, Data Cleaning Strategy & `transform.py` **16:20 – 17:10** Team Sprint Part 1: Missing Values, Outliers & Category Cleanup **17:10 – 18:00** Team Sprint Part 2: Feature Extraction, Hidden Signals & Scoring Iterations **18:00 -** Networking outside City University **13th June** **\- 23:59** Winner Team Announcement **Audience pre-requisite:** * **Hardware:** **MUST** bring a laptop with Python 3 installed and a code editor (VS Code, PyCharm, etc.). * **Skills:** Recommended having basic to intermediate-level knowledge of Python (handling JSON, using the `requests` library, and writing basic `if/else/while` loops). **How to join?** 1. Click "Attend" on this page

Learn different techniques and different media (e.g. watercolour painting, sketching with pastel, charcoal...) for different subjects (still-life, landscape, portraiture…) of different themes to produce your own portfolios for DSE, IGCSE, GCSE / A-LeveL / IB, application for universities. Only one charge and all art materials will be provided! Please RSVP call or WhatsApp Win Davies +852 9332 0424. your own portfolios for all art exams, IB, application for universities. Only one charge and all art materials will be provided! Please RSVP call or WhatsApp Win Davies +852 9332 0424.

亨利.穆傑的法國經典小說 +意大利19世紀末最重要的歌劇作曲家賈科莫.普契尼的著名歌劇《波希米亞人》藍本 +法語演唱。 故事：一群年輕人在 從放蕩不羈的青春 步向 肩負責任的成年 之間，如何在缺乏生活保障的情況下，依然追求藝術理想與愛情。 “Scenes of Bohemian Life” is a work by Henri Murger, published in 1851. a collection of loosely related stories, all set in the Latin Quarter of Paris in the 1840s, romanticizing bohemian life in a playful way. 2 operas were later based on the novel and play, *La bohème* by Giacomo Puccini in 1896 and *La bohème* by Ruggero Leoncavallo in 1897. Puccini's became one of the most popular operas of all time, spawning several later works based on the same story. **日期：2026年5月30日(星期六)** **時間：1)食飯:@6:15-7:00pm (可選), 2)音歌劇:@7:30-9:15pm** **地點：香港理工大學** **集合時間及地點：1)理工大學VA樓canteen; 2)賽馬會綜藝館地面層; 電聯** **座位: 自由劃位(本人會於7:30pm先排隊入場為大家獲取好座位)** **主辦單位：法國五月藝術節、理工大學、香港歌劇院** Date: 30 May, 2026 (Saturday) Time: 1) Dinner @6:15-7:00pm; 2) Opera @7:30pm-9:15pm Address: JC Auditorium in Hong Kong Poly University Assemble: 1) canteen in VA Building; 2) G/F of JC Auditorium; by call Seat: 6 people limited (Other audience in event as well) Seating: No seating is set and seats are served on first-come-first-served basis (I will queue up for good seat at 7:30pm for members) Presented by: French May Arts Festival, HK Poly University, Opera Hong Kong MeetUp費用：自由定價價值,(晚餐費另計). 報名：按Attend-> 填寫1)聯絡電話號碼, 2)男/女, 3)你願意付出此次活動費用, 4)一起用餐否?-> 確認入選活動-> 繳費(入帳恆生銀行號碼: 359-366101-882 (NG Y\*\ \*S\*\*\*)/ FPS/PayMe: 97419423)-> 再以閣下電話whatsapp(97419423)以下資料: 1)MeetUp名字, 2)過帳通知書. MeetUp fee: Free pricing as you value, (Dinner price excluded). Join: Click ‘Attend’-> Write down your 1)Contact number, 2)Male/Female, 3)Fee that you would pay for this event, 4)Meal together? -> Get confirmation of being in the event-> Pay to Hang Seng Bank acc: 359-366101-882 (NG Y\*\* S\*\*\*)/ FPS/PayMe: 97419423-> Whatsapp 1)MeetUp name, 2)Payment notification \*\*\*a) Welcome foreigners. Please remark your language if you are foreigner. [歡迎外地本地人一同熱鬧.請外地人指明語言.] \*\*\*b) Participants are required to follow instruction of the venue. [參與者要遵守場地規則,違者則有可能被邀離開.] \*\*\*c) Late comer may be restricted to admit and continue in the activity. [主辦組織不作逾候,逾時者有可能不被參加,請預早抵達.] \*\*\*d) No refund or seat transfer after payment, unless is the cancellation of activity or by our group. [交費後若未能出席參與者,繳款不獲退回及轉讓.(除非活動取消而全數退款).] \*\*\*e) Photos taken by our group during activity will be as record and promotion. [活動如有拍照,以作記錄和宣傳用途.] \*\*\*f) When there are 3 No Show, we have the right to ban you out from our groups. [凡超過3次No Show者,本組有權將該組員移離本群組.]

*\**\* This event is listed here for information only. Please join **[The 852 on Heylo](https://heylo.group/the852 "https://heylo.group/the852")** **for free** to complete **[your registration](https://heylo.com/invite/EfQoI5Qk "https://www.heylo.com/invite/Li4VDuEF4")**. \*\* Enjoy a fit, social Saturday evening at the largest pickleball venue of our new partner, [212HK](https://www.instagram.com/212hong_kong "https://www.instagram.com/212hong_kong")! Meet new friends, play games, then grab dinner & drinks at happy hour prices! 🥳 Both experienced players and newcomers are welcome—the 212HK coach will bring us up to speed! 📅 Date: Saturday, 30-May ⏰ Time: 5:00 PM 📍 Location: 212HK, 15/F S22 Building, 22 Heung Yi Road, Wong Chuk Hang. Wong Chuk Hang MTR Exit B 🎟️ **Ticket Price** Ticket includes: Entry, 2-hour racket rental, group class coaching, and game time! • Early bird offer ends on 3-May. **Early bird HK$300** \| Standard HK$350 Sign up for membership at [HK$150/month](https://buy.stripe.com/6oU6oH27RbFk6kgghV93y01 "https://buy.stripe.com/6oU6oH27RbFk6kgghV93y01") via the [Stripe link](https://buy.stripe.com/6oU6oH27RbFk6kgghV93y01 "https://buy.stripe.com/6oU6oH27RbFk6kgghV93y01"), and pay HK$150 for this event; check out on [Heylo](https://heylo.com/invite/LHK1RAm4 "https://heylo.com/invite/LHK1RAm4")! Limited capacity – first come, first served! 🏃 Come make new friends with active people and enjoy a fun-filled evening together! 🎁 Get hooked on pickleball? There's a special offer if you want to sign up on the spot! Miss that? Check out the [partner benefits for The 852 members](https://www.heylo.com/benefits/fe9e370b-b33d-4fb6-9175-271b6ad9b401/-Opf_dhI2aBjep6YmXWb "https://www.heylo.com/benefits/fe9e370b-b33d-4fb6-9175-271b6ad9b401/-Opf_dhI2aBjep6YmXWb") on Heylo. \*\*\* Register the event [here](https://heylo.com/invite/KWxoi7aM "https://heylo.com/invite/KWxoi7aM")! \*\*\* ***The 852*** *is a Fitness & Social Community that supports an active lifestyle through monthly membership pricing of HK$150. Members enjoy free weekly outdoor workouts, along with preferential rates or free entry, to select paid events.* Check out the [full schedule](https://heylo.group/the852). 😉 Follow us on [Instagram ](https://www.instagram.com/the852hk/)**[@The852HK](https://www.instagram.com/the852hk/)** [The 852 on Heylo](https://heylo.group/the852) : **https://heylo.group/the852** #The852 #The852HK #Pickleball #ActiveLifestyle #SocialActivity #NewInTown #MakeNewFriends #ExpandYourCircle

Welcome to all levels. For the beginners, I will teach you some basic skills and demonstrate and you'll pick up easily. Practice makes perfect! We will practice the club S, 5 and fairway wood 3, 5 and the driver. Looking forward to see you and let's have fun. Sportswear is fine. The equipment and balls will be provided at the driving range. ★★PLEASE let me know through Whatsapp or Calling before u sign up or RSPV and my HK number is 93798380. Otherwise, the chance of attendance will be passed to the one who did say hi to me first. Lastly, remember to let me know 24 HOURS before the Meetup if you will be late or can't attend. Otherwise, the one who absent without notice would be blacklisted and not welcome to join this Meetup anymore. Cheers, Terry Wong

Get a great workout with a sweat-dripping dance cardio class combined with high-intensity interval training HIIT! Feel your heart rate pumping, while you jam to the beats and see yourself groove to fitness! Leave the class feeling super energised, challenged yet relaxed from a liberating dance fitness experience! WhatsApp 63344266 to book Prepayment required to secure booking www.deedreamlife.com/pricing-packages for fee info Download Dee Dream Life App for more info

When learning statistics, one of the most fundamental yet usually grossed over concepts is that of **variance** (i.e. the square of the standard deviation in normal distribution). As we know, virtually all statistical operations which measure deviations of individual values from the norm involve adding the **SQUARED differences between the two numbers**. However, very few instructors could explain why we have to use squares rather than just the absolute values of the difference (or other even powers such as 4, if the intention is to avoid the negatives). This tutorial shall cover this in a convincing manner. Secondly, while we all know the variance of a SAMPLE is arrived by dividing (n-1) of the sum of squared differences, where n is the number of observations, few can articulate the rationale behind it. This tutorial shall also prove step by step why this is case, so after this you could appreciate the logic behind this ingenious insight instead of just reciting it like a medieval myth.

New comer, let’s learn to play magic: the gathering. The oldest & most popular TCG, magic: the gathering have over 50k different cards in the pool, fantasy storyline also super fun in gameplay and deckbuilding. Competitive & casual game style can be fulfilled. And its free! Join us in the mtg world! Please WhatsApp 6704 2789 Zen

Reading is important because it develops your mind and gives you excessive knowledge and lessons of life. 開卷有益！大家最近有冇讀到一啲好書呢？不如出黎分享下讀書心得呀？參加呢個讀書活動，分享好書，分享喜悅。😊 有興趣參加可以WhatsApp我：95182994

LSS Smart Fitness 律動班系列 Wed/Sun $100/ 1-hr class ($350 /4-class) Please RSVP one week in advance Welcome to book other time slot (WhatsApp 65230389) Vibration x MFR 療癒律動 (Relax, Muscle release & Facial massage) Vibration Fitness (Stretch & Strength) 健體律動 Vibration x BellyFit 美型律動 (Body Shape-up with Bellydance Technique Drills) Vibration x Yoga 律動瑜伽 (Yoga Asana in vibration setting) https://eshop.cosway.com.hk/ One FREE trial class with any Cosway purchase receipt over HK$1000 under introducer code : HK370579B 以 HK370579B 作介紹人的 Cosway (網購或門市)購物消費，逾 HK$1000，可免費試上律動班系列一節

Hong Kong residents cannot use Claude officially. I’ll share how I use Cursor as an alternative in my daily operations 香港暫時仲未正式用到 Claude，我會分享下平時係點樣用 Cursor 嚟做替代方案。 https://cursor.com/

恆常玩pickleball活動，不定期開場，target每場6-8人攤分場錢，人均低至$50/2hrs，包球拍租借，有興趣入嚟先😁 報名方法: **如果你想更深入了解其他會員/優先獲得活動名額及資訊，歡迎填妥[簡單表格](https://forms.gle/VuduPPGrMwCFiY2S9)加入Whatsapp會員限定群組，連結：** https://forms.gle/VuduPPGrMwCFiY2S9 本群（Fun & Positive Hong Kong X L&G）旨在協助大家輕鬆快樂交友，排憂解難，擴闊社交圈子，成為大家繁忙生活中嘅一片可以抖下氣嘅綠洲😉大家等緊你呀！～🤗🥳😉👍 **Your Pal,** **Fun & Positive Hong Kong X L&G Admin Team🥳😎**

此活動中不可進行任何商業銷售行為 因為在其他平臺也有發布，所以實際人數可能會比報名人數多 不進行簡單的閒聊，而是專注於深度對話，旨在提供能夠獲得知識並對您有所幫助的交流。 這裡可能有AI實踐者、心理學專家、哲學家、說故事的高手，或只是想聽故事的人。 我們將圍繞一個或多個主題進行辯論與學習，互相成長，共同進步，讓每一次交流都能助您提升與成長。 週日的深度討論，不管你想聊聊ai還是敘事學心理學還是哲學，不管你是否是這方面的新手還是老手，哪怕只是來聽聽，甚至想談談其他也可以 本聚會嚴格上不是專業討論，更像是深度聊天 時間：週日（5月31號）14：00 地點：（報名後會告知具體地點） 注意： 此活動有人數限制，活動過程中請保持友善，務必遵守相關法規，本活動及主辦單位不對參加會員安全負任何責任，請大家為自己安全負責。 活動中不討論政治，宗教等。 本活動安排可能會臨時發生變化，請大家留意 本活動不收取任何費用，活動過程中可以隨時離開 如不同意或違反以上內容，不可參加本次活動或可能會被要求離開活動 Due to the possibility of publishing on other platforms, the actual number of participants may exceed the registered number. do not engage in simple small talk; instead, we focus on deep conversations aimed at providing knowledge that can be helpful to you. Here, you may find AI practitioners, psychology experts, philosophers, storytelling masters, or simply those who wish to listen to stories. We will debate and learn around one or multiple themes, growing and progressing together, ensuring that each exchange contributes to your growth and improvement. On Sunday, we invite you to join a deep discussion. Whether you want to chat about AI, narrative studies, psychology, or philosophy, it doesn't matter if you're a beginner or an expert—feel free to come just to listen, or even to discuss other topics. This gathering is not a professional discussion, but rather a space for deep conversation. **Time:** Sunday (March 31th) at 14:00 **Location:** (Specific location will be provided after registration) **Note:** - This event has a participant limit. Please maintain friendliness during the event and adhere to relevant regulations. The event and the organizers are not responsible for the safety of participants; everyone is responsible for their own safety. - Political and religious discussions are not allowed during the event. - Arrangements for this event may change unexpectedly, so please stay tuned. - There is no fee for this event, and you can leave at any time during the process. - If you disagree with or violate any of the above content, you may not participate in this event or may be asked to leave. **以上圖片與活動內容無關 The above images are unrelated to the event content.** **The event content is subject to the Chinese version.**

Topic to be announced. **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

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

**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

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. So please RSVP for a head count!

Join us as we get together to see Paul Rudd in the latest comedy-drama-musical from John Carney, POWER BALLAD! The film follows a washed-up wedding singer, a fading boy band singer and a stolen hit song. Here’s a description, trailer and plan for this event: DESCRIPTION: Rick, a washed-up wedding singer, and Danny, a fading boy band star, bond over music and a late-night jam session. When Danny turns Rick's song into a hit, Rick sets out to reclaim the recognition he believes he deserves. Power Ballad is written/directed by John Carney, the master of the modern musical and creative mind behind Once, Begin Again and Sing Street! It stars Paul Rudd, Nick Jonas, Peter McDonald, Marcella Plunkett, Havana Rose Liu and Jack Reynor. BUZZ & ACCLAIM: The film premiered to rave reviews at this year’s Dublin International Film Festival where critics call it “a sure-fired crowd-pleaser” that “just might be the feel-good hit of the year!” Others say, “Paul Rudd delivers a career-best performance in this charmer” that’s both “hilarious and deeply moving." The film continues John Carney’s “long run of success with yet another charmer” and “a sharp, hopeful crowd-pleaser that strikes the right notes!” SUMMER OF ICE CREAM, VOL 2: SHAKE NO. 8! Ranked the #1 Ice Cream Shop in Columbus, this is a perfect early stop on our Summer of Ice Cream! Their menu uses made-from-scratch recipes in an array of traditional, specialty and vegan shakes, hot cocoa, crepes, waffle sticks, specialty coffee & espresso, and more! Their specialty shakes are as delicious as they are over-the-top and they offer an extensive vegan menu! You can check out their full menu here: [https://www.shakeno8.com/menu.php](https://www.shakeno8.com/menu.php) PLAN: Please purchase your ticket for the 6:45pm showing and we’ll meet in the upstairs lobby between 6:25 and 6:35pm! Advance ticket purchase is advised for this opening night showing! Once you have yours, please list your seat number in the Comments section of this event. We'll head to nearby Shake No. 8 immediately following the show! Should be a fun one, Dan

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow