2 papers
cs.CV2025
GRAPE: Let GRPO Supervise Query Rewriting by Ranking for Retrieval
Zhaohua Zhang, Jianhuan Zhuo, Muxi Chen +8
The CLIP model has established itself as a cornerstone of large-scale retrieval systems. However, its performance often degrades under distributional shifts such as multilingual, l…
math.OC2024
A Perturbed Value-Function-Based Interior-Point Method for Perturbed Pessimistic Bilevel Problems
Haimei Huo, Risheng Liu, Zhixun Su
Bilevel optimizaiton serves as a powerful tool for many machine learning applications. Perturbed pessimistic bilevel problem PBP, with being an arbitrary positive number, is…