3 papers
cs.CL2026
EviReform: Evidence-Guided Query Reformulation for Multi-Hop Graph Retrieval
Xinlong Xu, Yoshua Y. Li
Multi-hop retrieval must recover passages that provide sufficient evidence together. An initial passage often resolves an entity or relation implicit in the question, making the mi…
cs.CR2026
FoSAM: Forward Secret Messaging in Ad-Hoc Networks
Daniel Schadt, Christoph Coijanovic, Thorsten Strufe
Apps such as Firechat and Bridgefy have been used during recent protests in Hong Kong and Iran, as they allow communication over ad-hoc wireless networks even when internet access…
cs.CR2024
Pirates: Anonymous Group Calls Over Fully Untrusted Infrastructure
Christoph Coijanovic, Akim Stark, Daniel Schadt +1
Anonymous metadata-private voice call protocols suffer from high delays and so far cannot provide group call functionality. Anonymization inherently yields delay penalties, and sca…