Cryptography

uSwitch is located on the first floor of the ZPG building at 5 Copper Row, London, SE1 2LH, London (Click on the map for directions) What 3 words location: [https://what3words.com/puts.sudden.else](https://what3words.com/puts.sudden.else) The Clojure dojo is a collaborative way to learn Clojure/ClojureScript through practice. The aim is to learn a little more than before you started. This event is for those new to coding through to more experienced developers. We organise into small groups (2-4) people and write code to solve challenges great and small, chosen by those at the event. We aim to ensure someone in your group has some Clojure experience, so you shouldn't feel lost (well no more than all developers do when Stack Overflow is broken). Example challenges for the coding dojo are listed on this website: http://www.londonclojurians.org/code-dojo/ Various past exercises have been loaded to [https://github.com/ldnclj](https://github.com/ldnclj/lisp1.5/blob/master/src/lisp1/5.clj) # Approximate schedule: 18:40 Doors open and start collecting suggestions 18.45 Pizza should have arrived 19:00 Quick intros and vote on suggestions 19:15 Break out into groups and start practising 20:45 Gather together for a quick show and tell # What should I bring? We organise into small groups, so if you have a laptop with a working Clojure environment please bring it along (there are lots of online Clojure environments, so you can just use your browser too). # How do I get in to the building? At the glass doors press the buzzer to inform the security guard you are here. Say you are here for the event on the first floor. Is there way to talk with the Clojure community? Why yes. The Clojurians Slack channel is full of friendly people who love to try and help. People based in London are often in the #clojure-uk channel. Sign up for a free account to the Clojurians Slack community via http://clojurians.net/ What is Clojure? Clojure is a JVM language that has syntactically similarities to Lisp, full integration with Java and its libraries and focuses on providing a solution to the issue of single machine concurrency. Its small core makes it surprisingly easy for Java developers to pick up and it provides a powerful set of concurrency strategies and data structures designed to make immutable data easy to work with. If you went to Rich Hickey’s LJC talk about creating Clojure you’ll already know this, if not it’s well worth watching the Rich Hickey “Clojure for Java Programmers” video or Stuart Halloway “Radical Simplicity” video .

This week we'll be looking at the life and work of **Leonardo da Vinci**! Come and learn with us as we discover more of this legendary figure. All welcome! *If you come after 6.30pm ring the doorbell*

*Please ensure that you have READ THE SUBMISSIONS before attending the session. Contact Graig in advance for the submissions document and the exact location in NEW CROSS.* This session will focus on FEEDBACK for members' writing. We ask that people attend two meetings before submitting their own work. Read, read, read- and be ready to give thoughtful and detailed feedback at our meeting! We aim to finish at 10 each session, but several of us will often continue to socialise with a drink or two.

The Square is a 2017 satirical black comedy film written and directed by Ruben Östlund. The film stars Claes Bang, Elisabeth Moss, Dominic West and Terry Notary. A Swedish production with co-production support from Germany, France and Denmark, it was shot in Gothenburg, Stockholm and Berlin. The story was partly inspired by an installation Östlund and producer Kalle Boman had made. Östlund was also inspired by a notorious incident involving Oleg Kulik and cast Notary in a parody, drawing on Notary's experience imitating apes. The film was entered into the 2017 Cannes Film Festival, where it received positive reviews and won the Palme d'Or. It was subsequently selected for the 2017 Toronto International Film Festival. It went on to win six European Film Awards, including Best Film; two Guldbagge Awards, including Best Director; and other honours. It was nominated for the Academy Award for Best Foreign Language Film at the 90th Academy Awards. Please note we will not be showing the film at the meeting. Make sure you watch the film before you attend and then come and join in with the conversation. It’s just a discussion. It’s not a screening. We will be meeting in The Ludski Bar in the Rio Cinema. [https://www.riocinema.org.uk/your-visit/](https://www.riocinema.org.uk/your-visit/) You are welcome to bring outside food in with you but please buy your drinks from inside the cinema. Thank you. ... To join the All Out of Bubblegum Film Club WhatsApp Group please click here: [https://chat.whatsapp.com/J2to1MBd4Ct7kQTFFVnyML](https://chat.whatsapp.com/J2to1MBd4Ct7kQTFFVnyML) (in order to stop spam bots this will take you to a Waiting Room. Once in please write your name and we will join you to the main chat). Meetup charges subscription fees. If you would like to make a donation please click here: [https://paypal.me/philosophycollective](https://paypal.me/philosophycollective) You can also find the All Out of Bubblegum Film Club here: [https://www.meetup.com/alloutofbubblegumfilmclub/](https://www.meetup.com/alloutofbubblegumfilmclub/) We hope to see you soon.

Have you ever wanted to gather together and talk about insightful topics which broadens your thinking and knowledge? If so, this may be the right event for you. Welcome to the ‘Deep conversations’ event where you get the opportunity to share your views based on the topics that we may cover. The last time this was executed, it not only went well but we managed to learn from one another which broadened our thinking. With this particular event, the topics we’ll discuss are: * What do you think about literature and why is it so fascinating? * The power of imagination * Why are books sometimes better than the movies? * Are there any genres you like? * Name me a book that you read and enjoyed * Would you recommend any authors and if so, who would you recommend and why? We get so preoccupied with daily life that we hardly have a chance to sit back and think as well as discuss many topics in such depth. When was the last time you sat back and thought about anything in depth which opened your eyes to so many possibilities and broadened your thinking? Now is your chance to share your views and learn from one another. By participating in this, you could broaden your ways of thinking, learn new lessons or even heal if you have your hidden struggles. My fellow explorers, if you enjoyed the event, I’m more than happy to accept any donations which of course are optional but will go a long way to help me unlock and deliver even more exciting and engaging events and resources: https://www.paypal.me/calvinjoy WHAT - Deep conversations
WHERE - Ole & Steen https://maps.app.goo.gl/GTFGZsNTSqggzopx6?g_st=ic
WHEN - 6:45pm - 9pm
MEETING POINT - inside Ole & Steen
NEAREST STATION - Leicester Square station
REQUIREMENTS - Just your good behaviour and respect on one’s opinions. PRECAUTIONS - This event is capped so if you do RSVP but can’t make it, please change it to ‘not going’ so it enable others willing to attend to be marked as ‘going’. If you do mark yourselves as going, don’t change your RSVP and don’t attend, the next time another event such as this takes place and you rsvp, you will be marked as ‘not going’ as it’s possible you may make commit the same action. Please be mindful about the opportunities for others who are willing to attend. Disclaimers: Please be on your best behaviour and respect one another. This group doesn’t tolerate any misbehaviour and misconduct. Should such a thing take place, you will be removed. If you ask a question that either already has the answer to it or doesn’t relate to the event at all, I won’t respond. Whenever an event takes place, I will cut off contact 20 minutes after the event commences. If you message even 1 minute after the cut off time, I won’t be available as I’m conducting the event. There will be photography and videography by myself so if you are photo conscious and/or do not want to be in the video, do kindly inform me and I’ll try my utmost best to not involve you in the picture. Let’s all be responsible but please be aware you come at your own risk. Do be mindful of your possessions, belongings and most importantly, your safety. The ‘London society of explorers’ accept no risk of liability at this event.

**Explore, Create, and Capture the Charm of London’s Hidden Gem** Ever wanted to take beautiful, professional-looking photos with your camera, but didn’t know where to start? Join us in one of London’s most picturesque and peaceful corners—**Little Venice**—for a hands-on **beginner-friendly photography class** that blends **creative learning** with **urban exploration**. Led by a professional photographer with years of experience in both teaching and shooting across London, this 2-hour walking workshop will introduce you to the fundamentals of photography—**composition, lighting, exposure, and camera settings**—while guiding you through the stunning canals, bridges, houseboats, and quaint corners of this charming neighborhood. Whether you're using a DSLR, mirrorless camera, or just your smartphone, you’ll walk away with practical skills, improved confidence, and a fresh set of eyes for spotting photo-worthy moments. ### ✅ What you’ll learn: * Basic camera functions & manual settings * How to compose strong, balanced images * How to work with natural light * Tips for travel, portrait, and street photography ### 📍 Location: We’ll meet near Paddington Station and begin our journey along the canal paths of Little Venice. Exact meeting point to be sent by email 2 days before the event. ### 🎓 Perfect for: * Absolute beginners * Smartphone shooters wanting to level up * Londoners and visitors who want to see the city differently ### 🎁 What you’ll get: * Professional guidance in a small group * Personal feedback on your shots * A relaxed, creative afternoon in a scenic part of the city ### 🎁 Cost: **£30 paid by bank transfer before the event date.** 📸 **Heads up!** We only need 2 participants to run this class. If it doesn’t go ahead, we shall reschedule to another day or you get a **full refund**. No risk, just learning and fun! ✨ 👉 **Spots are limited — sign up now to secure your place!**

**Bitcoinology are back at Cyphermunk House!** Join us as Ramon takes us on a tour of standard chain analysis tactics and how best to counter them when transacting on chain. [TICKETS](https://btcpay.btc.aw/apps/rvvVwGSSSiJ7UgtzjmBdxy1Uq6a/pos) [MEMBERSHIP](https://www.cyphermunkhouse.com/members) Promotional activities related to shitcoins not permitted. No unsolicited photograhy. Peace and love.

Reportage photography or visual narrative photography is the art of telling the story of an event or location through photographs. It is based on photojournalism and when carried out properly, reportage photography will provide a comprehensive collection of photographs that will form a story of the subject. In this edition of this storytelling workshop we will choose from a selection of topics occurring around Chinatown in order to create a collection of photo stories. It is going to be challenging but also full of discovery. You will learn how to report and tell your story from beginning to end and then given a brief and a series of exercises to help you tell your story. WHAT YOU WILL LEARN * How to create a visual narrative * What makes a good story and how to show it visually * How to tell a story with a series of photographic images * Improve your composition skills to create impactful images EXPERIENCE LEVEL * Beginner/Refresher EQUIPMENT * Any camera including mobile phone * Any lens CONTACT * Alex 07956 264049 VENICE PHOTOGRAPHY WEEKEND - Oct 2026 [https://www.meetup.com/londonphotographic/events/313109100/](https://www.meetup.com/londonphotographic/events/313109100/) UPCOMING EVENTS [www.meetup.com/londonphotographic/events](http://www.meetup.com/londonphotographic/events)

**The Unscented Transform: theory, extensions and practical application to Bayesian inference** We are delighted to have John Whitamore back at the Bayesian Mixer. Please register here: https://www.tickettailor.com/events/bayesianmixer/2154878 **Abstract:** How can we perform Bayesian inference without resorting to slow random sampling methods? Isn't there a nice, pragmatic way to use the geometry of a problem to use only a very small number of samples, placed deterministically? Isn't there a good, straightforward way to implement Bayesian models in practical settings? This talk explains the real-world problems that can be solved by the Unscented Transform. It begins with an intuitive introduction to Bayesian methods, discusses the Unscented Transform and connects the ideas to geometry, finite elements analysis and deep learning. **Bio:** John Whitamore is a Senior Data Scientist at Simply Business, a leading UK InsureTech firm. He has previously served as Head of Data Science for a leading food retailer, as Head of Trading and Systems for an investment management company and as Global Head of Convertible Bond Trading for a European investment bank.

Today we'll be looking at the work of the Italian artist Caravaggio. Caravaggio adopted *chiaroscuro* in his paintings in the 16th century- his work beautifully combines a realistic view of the human state- physical and emotional- with a dramatic use of lighting. *Chiaroscuro* is an Italian term referencing the contrast of light (chiar) and dark (oscuro) to model three-dimensional forms. It’s a style that has quite dramatic results and one that photographers can learn a lot amount about lighting from studying. **Join us for a workshop in 2 parts:** * Informative session on the incredibly interesting life and work of Caravaggio * Shoot chiaroscuro style * We will also discuss street photography tips EQUIPMENT: * Any camera * Any lens such as a standard 18-55, 24-70mm etc. OTHER ESSENTIALS * A fun and experimental attitude! TRAVEL * As usual check TFL website for any issues that may delay your journey CONTACT * Alex 07956 264049 **UPCOMING EVENTS** **VENICE PHOTOGRAPHY WEEKEND - Oct 2026** **[https://www.meetup.com/londonphotographic/events/313109100/](https://www.meetup.com/londonphotographic/events/313109100/)** **UPCOMING EVENTS** **[https://www.meetup.com/londonphotographic/events/calendar](https://www.meetup.com/londonphotographic/events/calendar)**

Dear Members, As the **early evening from 5pm** [https://luma.com/he99iszf](https://luma.com/he99iszf) unfolds toward sunset, the tone deepens. Conversations shift from introductions to alignment: * Capital meets narrative * Ideas meet execution * Ambition meets backing * Complimentary nibbles & drinks What to expect: Guests arrive at Flex @ Tide, stepping off the street into a space that feels deliberately curated—minimal, elegant, quietly confident. **630-730pm There will be 5 Roundtables** \- Investment\, Tech & Ai\, Film & Music\, Scaleups & GovTech\. If you would like to head a table for discussion please reach out \(Zee Whatsapp 07588812528\)\. **Thank you to Flex @ Tide, The Master Collective**, **YouYaa**, and the **Future Crowd.** Floor-to-ceiling windows frame the river like a living artwork. There’s a subtle soundtrack—low, ambient, almost cinematic—punctuated by the clink of glasses and the first bursts of laughter from early connections forming. Feel free to bring friends and colleagues. If you are looking for future collaborations please let us know. **8pm Carriages** With warm regards, Zee & Team NB For Partnerships or Sponsors zee@picnicbank.com & [zm@mastercollective.xyz](mailto:zm@mastercollective.xyz)

We're delighted to announce an exciting LSCC event on Wednesday 13th May, in partnership with our friends at Zopa Bank! Join us at the Zopa Canary Wharf office in London for this session and get the chance to flex your architectural design muscles! "So how are we supposed to get great architects, if they only get the chance to architect fewer than a half-dozen times in their career?" — Ted Neward. This quote highlights the need for practice, which is what our LSCC architecture katas provide: a safe, repeatable way to hone your software architecture design skills by simulating architectural challenges. **What's the format?** You'll be split into groups and have a business problem to solve. You'll be tasked with designing a technical architecture to meet that problem context. As with real-life you'll have to manage various trade-offs in your design and interact with a Product Owner to clarify your questions. At the end of the task each team will showcase their architecture and technology choices back to the wider group as part of a group discussion. Whether you're a seasoned coder, software architect or new to the scene, you're invited to share insights, discuss best practices, and learn from fellow participants. No prior session attendance or architecture knowledge is required – just bring your enthusiasm. No laptop is required for this session, we'll provide each group with paper, pens and sticky notes to support the activity. Thank you to the Codurance team that will run the event at Zopa Bank's office. Find out more at https://www.codurance.com/ Food and drinks will be provided with vegetarian, vegan and non-alcoholic options available - thanks to Zopa Bank for sponsoring refreshments and hosting in their great office. **About Zopa** Founded in 2020 with a full banking licence and backed by some of Silicon Valley’s most iconic investors, digital bank Zopa is building the Home of Money. This is a place where financial products deliver good value and managing money is made effortless; deep and long-lasting relationships mean customers are left confident about their choices. One of the UK’s highest rated and most celebrated financial brands, Zopa has been recognised with over 10 British Bank Awards, holds a Trustpilot rating of 4.6/5, and has one of the highest customer satisfaction scores in the industry. Zopa Bank Limited is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority. https://www.zopa.com/ We look forward to seeing you soon!

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

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**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

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

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

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

**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