
Roxana Petcu
@rmpetcu
PhD student at UvA IRLab
ID: 1650216766583324672
23-04-2023 19:15:28
16 Tweet
49 Followers
111 Following



Started my PhD and presented a tutorial at ACM CIKM 2023 🎉 Super excited to have been a part of the tutorial on Data Augmentation for Conversation AI together with @ekanou Faegheh Hasibi and Heydar Soudani. See dataug-convai.github.io for more info


The code for E(n) Equivariant Simplicial Message Passing Networks (ICML, 2023) has been released 🦦 Code: github.com/flooreijkelboo… ArXiv: arxiv.org/abs/2305.07100 Thanks again to Rob and Erik Bekkers for the collab :D



Honored to have our paper featured in Maarten de Rijke's keynote at #ECIR2024! This is joint work with Maarten Maarten de Rijke and Avishek Anand Avishek Anand. In this paper, we define feature attribution for ranking models and develop a SHAP-based explanation called RankingSHAP. (1/2) 🧵

Listening to Roxana Petcu talking about data augmentation for task-oriented dialog systems The Web Conference



Flow Matching goes Variational! 🐳 In recent work, we derive a formulation of flow matching as variational inference, obtaining regular FM as a special case. Joint work with dream team Grigory Bartosh, @chris_naesseth, Max Welling, and Jan-Willem van de Meent. 📜arxiv.org/abs/2406.04843 🧵1/11


Effortlessly generate synthetic dialogues given a sequence of intents ! 🤖 Our new ACL 2024 NLP for Conversational AI workshop paper w/ Roxana Petcu, Chuan Meng , Mohammad Aliannejadi , Amin Abolghasemi , @ekanou , and Suzan Verberne 🤹♀️ ! 🎉 #ACL2024 #NLP #ConversationalAI #LLMs


Here’s a picture to prove I was actually on stage! And special thanks to Roxana Petcu for so eloquently introducing the Attention Mechanism :)



The Search Engines Amsterdam Meetup The IRLab at the University of Amsterdam is back ✨ followed by drinks🍻 📆 Fri, Oct 4th 📍Lab42, room L3.33 ⏰16.00 🚀James Allan (UMass) will talk about Probing Ranking LLMs: Mechanistic Interpretability in Information Retrieval 🔗meetup.com/sea-search-eng…

🚨 PhD position alert! 🚨 I'm hiring a fully funded PhD student to work on mechanistic interpretability at UvA Amsterdam. If you're interested in reverse engineering modern deep learning architectures, please apply: vacatures.uva.nl/UvA/job/PhD-Po…

Generative models excel at images and text, but tabular data remains a challenge.🤔 We introduce 🐈 TabbyFlow 🐈 - a variational flow matching approach with general exponential families for mixed-type tables. Work with Andrés Guzmán-Cordero & Jan-Willem van de Meent accepted to #ICML2025 🎉 👇 1/n
