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**

(Español debajo) Ready to get out of your comfort zone? Join us at a new SpeedFriendship edition 🥂 **The perfect opportunity to expand your social circle and forge connections in Buenos Aires.** 📍 **VENUE:** Buda Bar (Costa Rica 4667) ⌚ **TIME:** 9:00 p.m. 🌐 **Bilingual** **Event**: SPANISH AND ENGLISH 🎟️ $10,000, which includes a drink and free pizza slices. Immerse yourself in the game and engage in meaningful conversations with a **diverse group of four strangers**. Our dynamic format ensures you'll connect with various persons throughout the evening. **Event Schedule:** 🕗 9:00pm - Open doors and registration begins 🕤 9:30pm - Registration concludes 🕤 9:45pm - Kick off the activity 🕚 11:30pm - Activity concludes, allowing for free time to extend your newfound connections. There is also a Beerpong Tournament in the bar and later a dj and a dance floor **IMPORTANT:** *⚠️ In order to participate in the game you have to assist before 9:30pm. Otherwise there might not be available spots to participate. If you cannot make it on time, you´re still welcome to come and enjoy the evening outside the activity.* *⚠️ Registration is mandatory, if you didn´t sign up here before, you may be requested to wait in case someone doesn´t show up on time.* ⚠️ *Participation in the game is individual. The objective is to meet new friends, therefore, the game proposes to present ourselves as individual people.* ✨ [JOIN OUR WHATSAPP GROUP](https://chat.whatsapp.com/FXZN2MVkGzSADssNSq9R40) ✨ **[Follow us on instagram](https://www.instagram.com/speedfriendship_ba)** 📷 [Look at the pictures of other editions](https://drive.google.com/drive/folders/1SRen7_pUv8w346Rl06U2WuoEUotSppTk?usp=sharing) 📷 Get ready to embark on this one-of-a-kind experience! Don't miss out and expand your social circle at our SpeedFriending. See you there! *SpeedFriendship Team* —------------------------------ ¿Listos para salir de la zona de confort? Súmate a una nueva edición de SpeedFriendship ☀️🥂 **La oportunidad perfecta para ampliar tu círculo social y forjar conexiones en Buenos Aires.** 📍 **LUGAR:** Buda Bar (Costa Rica 4667) ⌚ **HORA:** 21:00 horas. 🌐 Evento **Bilingüe**: ESPAÑOL E INGLÉS 🎟️ $10.000 que incluye un trago y bandejeo de pizza Anímate a hacer amigos mientras participas en conversaciones con un **grupo diverso de cuatro extraños**. Nuestro formato garantiza que conectarás con varias personas durante la noche. **Horarios del evento:** 🕗 21:00 - Apertura de puertas y comienzo de la inscripción 🕤 21:30 - Finaliza la inscripción 🕤 21:45 - Comienza la actividad 🕚 23:30 - La actividad finaliza, lo que permite tener tiempo libre para ampliar sus nuevas conexiones. El bar también tiene un torneo de Beerpong, y más tarde, un dj y una pista de baile *⚠️ Para poder participar en el juego deberás asistir antes de las 21:30 horas. De lo contrario, es posible que no haya plazas disponibles para participar. Si no puedes llegar a tiempo, aún puedes venir a disfrutar de la noche fuera de la actividad.* *⚠️ Tienes que estar registrado aquí previamente. De lo contrario puede ser solicitado que aguardes al final del ingreso para ver si alguien registrado no llega a tiempo.* ⚠️ *La participación en el juego es individual. El objetivo es conocer nuevos amigos, por lo tanto, el juego propone presentarnos como personas individuales.* ✨ [ÚNETE A NUESTRO GRUPO DE WHATSAPP](https://chat.whatsapp.com/FXZN2MVkGzSADssNSq9R40) ✨ **[Síguenos en Instagram](https://www.instagram.com/speedfriendship_ba)** 📷 [Mira las fotos de las últimas ediciones](https://drive.google.com/drive/folders/1SRen7_pUv8w346Rl06U2WuoEUotSppTk?usp=sharing) 📷 ¡Prepárate para esta experiencia única! Amplía tu círculo social en el SpeedFriending. *SpeedFriendinship Team*

Buenas comunidad! Estamos organizando un after meetup descontracturado para Jueves 14 de Mayo, la idea es conversar de nuevo tomar contacto relajarse compartir novedades y conocimientos, plantear ideas para ir organizando un evento mientras compartimos alguna bebida y/o comida Como siempre Programacion / JS, IA, Data science, devops, automation, etc son temas que estan en la mesa y tambien para escuchar las ideas que tengan y que cosas nuevas vienen trabajando o investigando. Es una convocatoria abierta asi que pueden llevar conocid@s que quieran acercarse a la comunidad y aprender o enseñar cosas nuevas El evento aun esta abierto a que lo modifiquemos y propongamos cosas Nos vemos en unas semanas!

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.

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!

**🍻 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!

SPANISH VERSION BELOW 👇 **☕ Culture Shock Therapy – Deep Conversation / Coffee Talk** Some conversations change your day. Some change your life. Every Sunday we create a space for meaningful conversations about life, emotions, culture, psychology, relationships, and the things we usually don’t talk about in normal social events. 📍 Tienda de Cafe Italiano – Perón 4233, CABA 🕕 Every Sunday \| 18:00 – 20:00 🎟 Entry: 5,000 ARS (≈ 5 USD) **What you can expect:** • Deep questions • Social dynamics • Interactive games to feel comfortable • Open-minded people • Respectful environment • Coffee, ideas, and connection You don’t need to be an expert. You just need to be honest. This is not small talk. This is real conversation. Follow us on Instagram: [https://instagram.com/culture.shocktherapy](https://instagram.com/culture.shocktherapy) ━━━━━━━━━━━━━━━━━━━━ VERSIÓN EN ESPAÑOL 👇 **☕ Culture Shock Therapy – Deep Conversation / Coffee Talk** Algunas conversaciones te cambian el día. Otras te cambian la vida. Cada domingo creamos un espacio para conversaciones con sentido sobre la vida, emociones, cultura, psicología, relaciones y todo lo que normalmente no se habla en eventos sociales comunes. 📍 Tienda de Cafe Italiano – Perón 4233, CABA 🕕 Todos los domingos \| 18:00 – 20:00 🎟 Entrada: $5.000 **Qué podés encontrar:** • Preguntas profundas • Dinámicas sociales • Juegos para que todos se sientan cómodos • Gente abierta • Ambiente respetuoso • Café, ideas y conexión No necesitás ser experto. Solo necesitás ser auténtico. Esto no es charla superficial. Es conversación real. Seguinos en Instagram: [https://instagram.com/culture.shocktherapy](https://instagram.com/culture.shocktherapy)

**IMPORTANTE**: El evento transcurre en el parque, que es grande; y si el clima lo requiere en algún café cercano. Por tal motivo se recomienda ingresar al grupo de **Whatsapp** para acceder a la ubicación exacta y actualizada: https://chat.whatsapp.com/JXuUvIkBR8VKyanyUgFKWa **IMPORTANT:** The meeting is in the park, that is quite big; and in case of raining in a nearby Cafe. Because of that, is highly recommended to join the WhatsApp group in order to know the precise and uploaded location: https://chat.whatsapp.com/JXuUvIkBR8VKyanyUgFKWa 🏛️ **¿DE QUÉ SE TRATA FILOSOFÍA PRÁCTICA?** Filosofía Práctica es un encuentro semanal para quienes disfrutan de conversaciones profundas, el pensamiento crítico, y la exploración de nuevas ideas. No necesitas conocimientos previos, solo curiosidad y ganas de compartir. Cada semana abordamos un tema distinto, practicando la comunicación y construyendo una comunidad de personas reflexivas. 📓 **¿CÓMO FUNCIONA?** * Compartimos el tema de la semana en nuestro grupo de WhatsApp con algunas preguntas guía. * Nos reunimos a las 14:00, comenzando con una charla informal antes de la discusión. * Conversamos en grupos pequeños para que todos puedan participar. * Al final, cada grupo comparte sus conclusiones y cerramos la sesión alrededor de las 16:00. 🧧 **¿CUÁNTO CUESTA?** ¡Es completamente gratis! Si nos reunimos en un café, solo pedimos que apoyes el lugar comprando una bebida. Algunas sedes alquilan un espacio y pueden solicitar donaciones voluntarias, pero no es obligatorio. 💛 **LO QUE DICEN** 🗣 “Siento que Filosofía Práctica te ayuda a construir tu propio sistema de creencias a través de diversas perspectivas, sin imponer lo que está bien o mal.” – Ekam 🗣 “Desde la primera vez que asistí (el tema era autoridad), supe que este era mi lugar. Me encanta cómo nos desafía a cuestionar diferentes puntos de vista, fomentando la apertura y la flexibilidad mental.” – Daniel 🗣 “Siempre quise tener este tipo de conversaciones, pero nunca encontré el espacio adecuado… hasta ahora. La gente, los temas, los debates abiertos… todo hace que sienta que pertenezco aquí.” – Sofía 🤓 **PREGUNTAS FRECUENTES** 📌 **¿Debo estudiar antes de asistir?** – No es necesario. Nos interesa saber *qué piensas tú*, no solo lo que dijeron los filósofos clásicos. Si quieres compartir ideas de alguna corriente de pensamiento, ¡adelante!, pero no es un requisito. 📌 **¿Se habla español?** – ¡Sí! Organizamos los grupos según el idioma para que todos se sientan cómodos participando. 📌 **¿Puedo ir solo/a?** – ¡Por supuesto! Muchos asistentes llegan solos y terminan haciendo grandes conexiones. 📌 **¿Dónde se reúnen?** – Compartimos la ubicación en WhatsApp y Meetup. Recomendamos unirte al grupo de WhatsApp para estar al día. ✨ **Desde 2021, Filosofía Práctica ha crecido a más de 50 capítulos en todo el mundo. ¡Únete a la comunidad!** **EL GRUPO DE WHATSAPP ES EN INGLES, CUALQUIER DUDA CONSULTE POR EL ORGANIZADOR AL INGRESAR.** 📲 [WhatsApp](https://chat.whatsapp.com/JXuUvIkBR8VKyanyUgFKWa) \| 📷 [Instagram](https://www.instagram.com/practicalphilosophyclub/) \| 🌍 [Website](https://www.practicalphilosophy.club/)

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