Giovanna Varni

A Hitchhiker’s Guide towards Transactive Memory System Modeling in Small Group Interactions

2021

Modeling Transactive Memory System (TMS) over time is an actual challenge of Human-Centered Computing. TMS is a group’s meta-knowledge indicating the attribute of “who knows what”. Conceiving and developing machines able to deal with TMS …

Interactive Groupwise Comparison for Reinforcement Learning from Human Feedback

2025 · arXiv (Cornell University)

Reinforcement learning from human feedback (RLHF) has emerged as a key enabling technology for aligning AI behaviour with human preferences. The traditional way to collect data in RLHF is via pairwise comparisons: human raters are …