3 papers
cs.CR2026
DP-ES: Differentially Private Evolution Strategies for Prompt Optimization
Ziniu Liu, Aiping Li, Yue Han +5
Token-level differentially private (DP) prompt optimization methods such as DP-OPT can become unstable under tight privacy budgets: on GSM8K, DP-OPT obtains across…
cs.AI2025
Enhancing Logical Expressiveness in Graph Neural Networks via Path-Neighbor Aggregation
Han Yu, Xiaojuan Zhao, Aiping Li +3
Graph neural networks (GNNs) can effectively model structural information of graphs, making them widely used in knowledge graph (KG) reasoning. However, existing studies on the exp…
cs.AI2024
A Unified Temporal Knowledge Graph Reasoning Model Towards Interpolation and Extrapolation
Kai Chen, Ye Wang, Yitong Li +3
Temporal knowledge graph (TKG) reasoning has two settings: interpolation reasoning and extrapolation reasoning. Both of them draw plenty of research interest and have great signifi…