Streaming Analytics

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.

First timer, please leave contact. Please put your name on the waiting list which will be updated later. My WhatsApp / Signal: 9528-5003 \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Date: 31 May 2026 (Sun) Time: 9 to 12 noon (2+2+2) Courts: #A, #B Level: All \# of Players: about 16 Shuttlecock: Moxiang White #2 Format: Doubles Sports Club Membership Fee: $30 (PayMe / FPS #: 9528-5003) Venue: Kai Tak Community Hall 3 Concorde Road, Kai Tak, Kowloon Kai Tak Station Tel: 3467-8266 啟德社區會堂 九龍 啟德協調道 3 號 啟德站 Direction (from Kai Tak MTR to Kai Tak Community Hall): https://bit.ly/Kai-Tak-2

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🥳😎**

First timer, please leave contact. Please put your name on the waiting list which will be updated later. My WhatsApp / Signal: 9528-5003 \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Date: 31 May 2026 (Sun) Time: 7 to 10 pm (2+2+2) Courts: #A, #B Level: All \# of Players: about 16 Shuttlecock: Moxiang White #2 Format: Doubles Sports Club Membership Fee: $30 (PayMe / FPS #: 9528-5003) Venue: Tai Wo Hau Estate Community Centre 15 Tai Wo Hau Road, Kwai Chung Tai Wo Hau MTR 大窩口社區中心 葵涌 大窩口道 15 號 大窩口站 Direction (from Tai Wo Hau MTR to community center): https://bit.ly/Tai-Wo-Hau

First timer, please leave contact. Please put your name on the waiting list which will be updated later. My WhatsApp / Signal: 9528-5003 \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \-\-\-\-\-\> Ocean Park MTR \(海洋公園 地鐵站\) Date: 31 May 2026 (Sun) Time: 1-3 pm, (1+1) Court: #6 Level: Intermediate \# of Players: about 7 Shuttlecock: Moxiang Pink 7 PRO Format: Doubles Cost: $50 (PayMe / FPS #: 9528-5003) Venue: Wong Chuk Hang Sports Centre, 168 Wong Chuk Hang Road, Hong Kong 香港仔 黃竹坑道 168 號 黃竹坑體育館 \-\-\-\-\-\> Gymnasium Tel: 2553\-6663 \-\-\-\-\-\> Ocean Park MTR \(海洋公園 地鐵站\) Direction (from Ocean Park MTR to Wong Chuk Hang Sports Centre): https://bit.ly/Aberdeen-Soccer

Hi All, I am Lawrence, Certified Animal Flow Level III iinstructor and Certified Personal Trainer from A.C.E.
Animal Flow is ground based movement. This system is designed to improve strength, power, flexibility, mobility, and coordination for all levels of fitness enthusiasts.
During this class I will introduce you to different animal flow movements, through these movements, we workout, stretch and create our flow together. A good way to enjoy this beautiful weather and understand our body.
Class Fee:150 per person
Please feel Free to Message me for any questions.
你好 我係Lawrence , Level 3 Animal Flow 同埋私人教練
可能好多人對動物流依個運動系統都好陌生，其實佢融入左好多模仿動物同埋唔同類型運動既動作，通過練習依啲動作，可以改善我地既力量，耐力，柔軟度，協調，穩定性等等。而且所有動作有各式既演變，適合不同程度既參與者！同埋最有趣既地方，就係好大既自由度，可以將各樣動作串連而成為一個好似舞蹈或者表演。
係班上，我會教大家各式既相關動作，無論你想鍛鍊或者伸展，都可以搵到適合你既野。一齊黎係陽光下既户外一齊玩啦！
費用:每堂150元
歡迎聯絡查詢。

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

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.**

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

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/

First timer, please leave contact. Please put your name on the waiting list which will be updated later. My WhatsApp / Signal: 9528-5003 \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Pure White Jersey 純白 $20 (PayMe / FPS #: 9528-5003) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 31 May 2026 (Sun), 4:30 pm ----- Friendly (Away, White) vs Kam Wah FC Wong Chuk Hang Recreation Ground, 108 Wong Chuk Hang Road, Aberdeen \-\- Close to factory area\, next to 4 hard rock pitches \-\- Wong Chuk Hang MTR\, A2 Exit 香港仔 黃竹坑道 108 號, 黃竹坑遊樂場. Tel: 2552-6043 / 2555-0103 \-\- 工廠區\, 石地場旁邊 \-\- 黃竹坑 MTR\, A2 出口

**The Behavior Gap: Where Products Win or Lose** Teams today have more data than ever, and yet many still struggle to understand why customers adopt, engage with, or abandon their products. Teams sprint, ship faster, and chase more signals… all while metrics stall and confidence drops. The missing piece isn’t more data. It’s often the behavioral insight between the metrics, explaining why the numbers move in the first place. Dashboards can tell you what customers did, but understanding why they did it (and how to influence what they do next) requires a deeper blend of insights. This session is about closing that gap. Drawing from real-world experience designing and scaling products as [ZoCo Design](https://zocodesign.com/)’s CEO, [Lacey](https://www.linkedin.com/in/laceypicazo/) will share how to cut through the noise and identify the insights that actually change behavior—moving people, and moving metrics. You’ll learn: * Why understanding customer behavior is a quant and qual challenge * How to spot the signals that actually predict behavior change * Where AI accelerates insight, and where it creates distraction * How to get meaningfully closer to customers, without adding more tools This talk reframes how to evaluate performance and identify what levers actually improve it, helping your team to make smarter bets with greater confidence. Every meaningful outcome is driven by behavior change. And when you know how to design for behavior, you stop guessing, and start building things that work. **About Our Speaker** [Lacey Picazo](https://www.linkedin.com/in/laceypicazo/) is the Founder and CEO of ZoCo, a healthcare product studio that turns complex, high-stakes ideas into products that drive real-world adoption. She partners with healthcare organizations to uncover critical care delivery insights, focus product strategy through behavior design, and build solutions that patients and providers actually use. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)

The June Ohio North Database Training user group meeting will be held on **June 2nd, 2026 at 5:00PM**. This will be a **HYBRID** event and we will be joined online 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/215625630917731?p=vxNb3zudhNj0S6Cg0v)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 ### SQL Server 2025: The Developer’s Revolution Explore SQL Server 2025’s new dev features -JSON type, Regular Expressions, and Change Event Streaming for real-time pipelines. See how REST API and Data API Builder turn your data into secure, high-performance APIs. Packed with demos, this session is perfect for developers, DBAs, and architects \*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.

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

Couldn't make Knowledge? Or want to debrief the dancing robots or Autonomous Workforce? Join us for a Knowledge '26 recap, insights sharing, a couple rounds of golf, and fun at Topgolf. As always, drinks and food will be provided. More details to come — mark your calendar, RSVP, and save your spot today!

Hosted by Licking County Soil and Water Conservation District **Stream Team Sampling Events** Are you interested in the health of local rivers and streams? You can join the Licking County Soil and Water in a Stream Team assessment. These events are a night filled will fun in the water. We look at habitat, biology, and chemical parameters in waterways that indicate how healthy our water is! We would love to see you at one of these events! Family friendly. Free to attend. June Wildwood Park, Granville Where: 785 W Broadway, Granville, OH 43023 Date: 6/11/2026 Time: 5:30 - 7:30 P.M. July Velvet Ice Cream, Ye Olde Mill Where:11324 Mount Vernon Rd, Utica, OH 43080 Date: 7/9/2026 Time: 5:30 - 7:30 P.M.

QA or the Highway is a one-day, affordable, regional, professional conference featuring real-world experience and thought leadership in the QA and testing industry. This is a ticketed event please register here: https://www.qaorthehwy.com/ Featured Keynote Speakers: **Matthew-Hope Eland** **(Wizard at Leading EDJE)** \- An AI Specialist and Wizard at Leading EDJE who is known to teach software engineering\, AI\, and data science concepts in the most ridiculous ways possible\. Matt has used machine learning to settle debates over whether Die Hard is a Christmas movie\, reinforcement learning to drive the behavior of digital squirrels\, data analytics to suggest improvements to his favorite TV show\, and AI agents to play board games and create an AI agent with the personality of a dog\. Matt is the author of "Data Science in \.NET with Polyglot Notebooks" and "Refactoring with C\#" as well as several LinkedIn Learning courses\. Matt helps organize the Central Ohio \.NET Developer Group\, runs several blogs and a YouTube channel\, has a Master’s of Science in Data Analytics\, and is a current Microsoft MVP in AI and \.NET\. **Tatyana Arbouzova** **(CEO at Innovate QA)** \- Tatyana Arbouzova is an engineering and business leader with a strong background in Quality Engineering across multiple industries\, including Big Tech\, Healthcare\, and Entertainment\. She has held leadership roles at world\-class companies such as Microsoft\, VMware\, Disney\, and The Pokémon Company International\, where she focused on building quality\-driven cultures and scaling teams to deliver high\-impact products\. With decades of experience\, Tatyana has helped organizations transform their quality practices so teams can deliver software efficiently\, confidently\, and with measurable business outcomes\. Today\, Tatyana advises software companies on adopting AI to optimize quality practices and improve how software is delivered at scale\. She is also a passionate community builder and the founder of Innovate QA\, a thriving Seattle\-based community and conference for quality professionals\.

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