Statistical Science

En este taller introductorio vamos a acercarnos a la **Teoría de Respuesta al Ítem (TRI)** de una manera práctica y accesible. La TRI sirve para entender mejor **cómo funcionan los ítems (preguntas) de un test y cómo miden una habilidad o rasgo**. Nos permite ver, por ejemplo, si un ítem es más fácil o más difícil, si discrimina bien entre personas con distinto nivel, y si funciona de manera consistente. También es una herramienta muy útil para seleccionar los mejores ítems, acortar tests sin perder calidad y diseñar escalas más precisas. A lo largo del encuentro, vas a: \- Construir una comprensión conceptual de sus ideas principales\. \- Aplicar este método usando R\. \- Aprender a interpretar sus resultados para entender mejor cómo funcionan los ítems y qué aportan a la medición\. Este taller es **introductorio** y está dirigido a personas con un **conocimiento básico de escalas psicométricas**. **No requiere conocimiento previo de Teoría de Respuesta al Ítem.** **Requerimientos:** * R: 4.5.1 (mínimo) * RStudio: 2025.05.1 (mínimo, descargar [aquí](https://posit.co/downloads/)) * Instalar los paquetes **tidyverse, mirt y ltm**

How does it work? Get paired with native speakers in a series of 10-minute conversations during every two-hour session. Attending as little as two times a week, for 2 hours at a time, you’ll meet and practice with an unparalleled number of native speakers. https://youtu.be/blo5nNjgMBc https://youtu.be/xk04lA9x3qQ https://youtu.be/2TJMigrxiwI There is no shortcut to Spanish fluency - but Spanglish is so fun you won’t want one! Spanglish starts during the 30 minute check in: Get to know the other Spanglishers – about half of the attendees at every event are new! After a little bit of ice-breaking, you’ll head to an assigned table for your first one-on-one conversation. No need to worry about making mistakes – the person sitting across from you is in the same boat! You converse for 5 minutes in english, 5 in Spanish – and then move on to a new conversation partner. By the second rotation we promise you’ll be having so much fun you’ll forget you’re learning. What do we talk about at Spanglish?: Whatever you want! There are no set topics. We talk about everything from our favorite superheroes to our favorite restaurants – it’s the best way to practice another language – hanging out in a relaxing environment and talking about stuff you know and like! Who attends Spanglish? Study abroad students, international students, local Argentine students studying English and anyone looking for a flexible, affordable, and comfortable environment to practice their conversation skills. How much does it cost? AR$10000 at the event. Get the Spanglish package 4 events AR$28000 Enjoy the virtual language exchange events for FREE You can find more information on our website http://www.spanglishexchange.com and see pictures of the events at facebook.com/SpanglishBuenosAires *** ►HOW TO BE PART? Go directly to the bar during the check in time and you will find a Spanglish Staff who will register you! ►HOW DOES IT WORK? Get paired with native speakers in a series of 10-minute conversations during every two-hour session. Attending as little as two times a week, for 2 hours at a time, you’ll meet and practice with an unparalleled number of native speakers. There is no shortcut to Spanish fluency - but Spanglish is so fun you won’t want one! Spanglish starts during the 40 minute check in: Get to know the other Spanglishers – about half of the attendees at every event are new! After a little bit of ice-breaking, you’ll head to an assigned table for your first conversation. No need to worry about making mistakes – the person sitting across from you is in the same boat! You converse for 5 minutes in english, 5 in Spanish – and then move on to a new group of conversation partners. By the second rotation we promise you’ll be having so much fun you’ll forget you’re learning. ►WHO ATTENDS SPANGLISH? Study abroad students, international students, local Argentine students studying English and anyone looking for a flexible, affordable, and comfortable environment to practice their conversation skills.

Ready to speak English, meet people from around the world, and have a great time? 🌍 This is a great opportunity to meet international people while sharpening your communication skills. Join us at TEGOBA (The English Group of Buenos Aires) for a dynamic evening of conversation, connection, and cultural exchange. Whether you're a native speaker or a fluent learner, this is your space to connect, share, and enjoy real conversations. ✨ Good vibes. Great conversations. Global friendships. Come solo or with friends, grab a drink, and be part of a vibrant community of locals and expats who love connecting through language. 🗣️ **Conversational level of English is required** – this meetup is all about natural, flowing conversation. If you can jump into discussions with ease, you’ll fit right in! Expect engaging chats about travel, culture, life experiences, and anything that sparks curiosity. No boring lessons—just real people, real conversations, and a welcoming international atmosphere. See you at TEGOBA! Watch this video to check your level for participating in our meetings. [https://youtu.be/dAmsEhnDWXM](https://youtu.be/dAmsEhnDWXM)

Sumate a un plan distinto en Buenos Aires: practicá idiomas, conocé gente real y compartí mate 🧉 📍 Airport Bar (Palermo) 🕖 Todos los viernes, 7PM Un espacio sin presión, con dinámicas simples para que hables de verdad, pierdas la vergüenza y mejores tu fluidez. 🌍 Participan locales, viajeros y estudiantes de distintos países. 💬 Organizamos los grupos para que todos participen 🧉 Mate durante todo el encuentro 💸 Entrada: 7.000 ARS 💸 Abono mensual: 25.000 ARS (4 encuentros) Reservá tu lugar en el link: [FORMULARIO DE INSCRIPCION](https://docs.google.com/forms/d/e/1FAIpQLScRYwndu95kuu0mHPDt4BA3GHeO_0eIM3GWu4U-ezqsZv8M5w/viewform?fbclid=PARlRTSANZ6F5leHRuA2FlbQIxMQABp_cONcptR-QgFD-_dVVgvuT9XlH8DBiASUjE38apQevC1VRX8e4YzU0_sxTW_aem_zcZH1hdxxa4lfNZS-otIZA)

Join our **Night Crawl**! A bar tour to enjoy Palermo’s nightlife We´re planning an unforgotable night to make great memories and friendships ⌚️ ***ITINERARY:*** 9:00 PM to 10:30 PM: First bar with complimentary pizza 10:30 PM to 12:00 AM: Second bar with a welcome shot 12:00 to 1:30 AM: Third bar with a welcome shot 2:00 AM to 7:00 AM: Nightclub with priority entrance There’s a [WhatsApp community](https://chat.whatsapp.com/G2FPXxPLSolJfhOCMIhDQZ) with one group for chatting and another to meet up ️ 🎟️ ***How to get the entrance?*** * On [Passline](https://www.passline.com/eventos/nightcrawl-510953) , [PayPal](https://py.pl/YIdAYtAEj7aJ5Xa9UL6Dug) or [Mercado Pago](https://mpago.la/1Zu5enb) * At the first venue with cash or card ✨ ***What is included?*** * Pizza in the first bar * A shot in the second and third bar * Club entry without queue * The best energy to make it an unforgettable night [FOLLOW US](https://www.instagram.com/speedfriendship_ba) to see past editions and get a feel for what to expect See you! \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- ¡Únete a nuestro Night Crawl! Un tour de bares para disfrutar de la vida nocturna de Palermo ✨ Estamos planeando una noche inolvidable para crear grandes recuerdos y amistades ⌚️ ***ITINERARIO***: 21 a 22:30hrs: Primer bar con bandejeo de pizza incluido 22:30 a 00hrs: Segundo bar con shot de bienvenida 00 a 1:30hrs: Tercer bar con shot de bienvenida 2 a 7hrs: Club nocturno con entrada preferencial Hay una [comunidad en WhatsApp](https://chat.whatsapp.com/G2FPXxPLSolJfhOCMIhDQZ) con un grupo de charla y otro para encontrarnos 🎟️️ ***¿Cómo conseguir la entrada?*** * Con [Passline](https://www.passline.com/eventos/nightcrawl-510953) o [PayPal](https://py.pl/YIdAYtAEj7aJ5Xa9UL6Dug) o [Mercado Pago](https://mpago.la/1Zu5enb) * En el primer bar, con efectivo o tarjeta ✨ ***¿Qué incluye?*** * Pizza en el primer bar * Un shot en el segundo y tercer bar * Entrada al club sin filas * El mejor ambiente para una noche inolvidable [SÍGUENOS](https://www.instagram.com/speedfriendship_ba) para ver ediciones anteriores y tener una idea de qué esperar ¡Nos vemos!

VERSION EN ESPAÑOL ABAJO 👇 **🌎 Social Meet- by Culture Shock Therapy** Meeting new people as an adult shouldn’t feel like a job interview Social Meet is a relaxed international gathering where locals, expats, and travelers come together to talk, laugh, and connect naturally 📍 Tienda de Cafe Italiano – Perón 4233, CABA 🕕 Every Saturday \| 18:00 – 20:00 🎟 Entry: 5,000 ARS (≈ 5 USD) What you can expect: • Multilingual conversations • Cultural exchange • Locals + expats + travelers • Genuine laughs • A relaxed and friendly atmosphere Just real people and real conversations. Follow us on Instagram: [https://instagram.com/culture.shocktherapy](https://instagram.com/culture.shocktherapy) ━━━━━━━━━━━━━━━━━━━━ VERSIÓN EN ESPAÑOL 👇 **🌎 Culture Shock Therapy – Social Meet** Conocer gente nueva de adulto no debería sentirse como una entrevista. Social Meet es un encuentro internacional relajado donde locales, extranjeros y viajeros se juntan para hablar, reír y conectar de forma natural. 📍 Tienda de Cafe Italiano – Perón 4233, CABA 🕕 Todos los sábados \| 18:00 – 20:00 🎟 Entrada: $5.000 Qué podés encontrar: • Conversaciones en varios idiomas • Intercambio cultural • Locales + extranjeros + viajeros • Risas reales • Ambiente relajado y amigable Sin presión. Sin caretas. Sin incomodidad. Solo gente real y buenas conversaciones. Seguinos en Instagram: [https://instagram.com/culture.shocktherapy](https://instagram.com/culture.shocktherapy)

**🍻 Goodtimes After Office – Everyone Welcome!** Every Saturday, a group of 20–30 expats and Argentines meet up for drinks after our Tag Rugby game in the park. Whether you played or not, come join us for a cold beer and great chat with fun people from all over the world! 🏉No rugby experience needed — just show up, grab a drink, and meet the crew. 🌎 International crowd — players and non-players alike! 👟Come for the rugby, stay for the beers — or just come for the beers. Either way, you'll have a great time! 🏉🌍 See you Saturday! 🌍

(We run games every week despite the attendees you'll see in Meetup. Contact Davi on WhatsApp 1-2 days before at +5511 959517055 to guarantee attendance) 🌎 Mixed Tag game for everyone! 🥳 🏉 Tag is a beginner-friendly, no contact sport. There’s no tackling (we provide the velcro tags) and we encourage players to include all newbies! 📍 Location is around Palermo (Message Davi for exact details) 👟 All you need to bring is sportswear, water, and bugspray (if you have it) We will occasionally ask for donations to help maintain the equipment for the game 🍻 We always go for drinks afterwards!

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

Join Neurospicy Columbus at the Stauff's for coffee and then a stroll through the Book Loft nearby! This will be a friendly chat for like minded individuals with Autism and/or ADHD (or somewhere on the Neurodiverse Spectra).

Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message \*\*Chris (the organizer)\*\*with a **title and short description** of what you’d like to share. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.linkedin.com/company/transformlabs/) Sign up also accessible via [Transform Labs Luma](https://luma.com/transformlabshq)

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.

**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

**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