4 papers
Incentivizing User Data Contributions for LLM Improvement under Withdrawal Rights
Di Feng, Chenhao Zhang, Zhanzhan Zhao
The continued improvement of large language models (LLMs) increasingly depends on eliciting high-quality, user-generated data, yet such data are costly to provide and often withhel…
On fairness of multi-center allocation problems
Yao Cheng, Di Feng
We investigate Ekici (2024b)'s multi-center allocation problems, focusing on fairness in this context. We introduce three fairness notions that respect centers' priorities: interna…
Axioms for Top Trading Cycles in Multi-Object Reallocation
Jacob Coreno, Di Feng
This paper studies multi-object reallocation without monetary transfers, where agents initially own multiple indivisible objects and have strict preferences over bundles (e.g., shi…
Justified Fairness in House Allocation Problems: two Characterizations of Strategy-proof Mechanisms
Di Feng, Jacob Coreno
We consider the house allocation problems with strict preferences, where monetary transfers are not allowed. We propose two properties in the spirit of justified fairness. Interest…