Ali Modarressi

@amodarressi.bsky.social

PhD student, NLP Researcher at @cislmu.bsky.social | Prev. Intern @Adobe.com

While I’m attending @eaclmeeting.bsky.social virtually, be sure to catch Pedro's presentation at the 11:30–13:00 session this Wednesday in S. Le Riad! He’ll be discussing our recent collaboration: 📄 "Persistent Personas? Role-Playing, Instruction Following, and Safety in Extended Interactions"

CIS, LMU Munich@cislmu.bsky.social · 7mo ago

Persistent Personas? Role-Playing, Instruction Following, and Safety in Extended Interactions [Oral]: Wed. 25 Mar - S. Le Riad @ 11:30-13:00 @pedrohluzaraujo.bsky.social , @mhedderich.bsky.social , @amodarressi.bsky.social , Hinrich Schütze, Benjamin Roth bsky.app/profile/pedr...

CIS & MaiNLP Group picture at EMNLP 2025! 🤩 🤗 (1/3) While I sadly 🥲 won't be at EMNLP this year myself, please do reach out to any of our members for a chat if you are interested in our research! We also co-organize and participate in some great workshops at EMNLP:

Bild

Leaving Vancouver after ICML’s closing fireworks 😁🎆 Heading to Toronto for a few days, then off to @aclmeeting.bsky.social to present: "Collapse of Dense Retrievers" A work by @mohsen-fayyaz.bsky.social that I was fortunate to collaborate on. Also co-presenting two other papers…🧵 [1/4]

Bild
Ali Modarressi@amodarressi.bsky.social · last yr.

📄 Collapse of Dense Retrievers Accepted to #ACL2025 main conference 🎉🎉 In this paper we uncover major vulnerabilities in dense retrievers like Contriever, showing they favor: 📌 Shorter docs 📌 Early positions 📌 Repeated entities 📌 Literal matches ...all while ignoring the answer's presence!

📄 Collapse of Dense Retrievers Accepted to #ACL2025 main conference 🎉🎉 In this paper we uncover major vulnerabilities in dense retrievers like Contriever, showing they favor: 📌 Shorter docs 📌 Early positions 📌 Repeated entities 📌 Literal matches ...all while ignoring the answer's presence!