Ziyu Lyu
6 papers · 2025–2026 · 5 conferences · across top CS/AI conferences
Achievements
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🌍
Conference Polyglot
(4)
🌉
Interdisciplinary Bridge
🐝
Cross-Pollinator
(15)
⭐
Rising Star
(5)
Conferences
AAAI (2)
ACL (1)
EMNLP (1)
ICML (1)
IJCAI (1)
Top co-authors
Keywords
graph neural network
(3)
graph classification
(3)
preference optimization
(1)
safety alignment
(1)
model alignment
(1)
mixture of expert
(1)
hierarchical feature
(1)
expert routing
(1)
graph kernel
(1)
jensen-shannon divergence
(1)
graph auto-encoder
(1)
graph pooling
(1)
kernel methods
(1)
large language model
(1)
subgraph convolution
(1)
adaptive contrastive decoding
(1)
representation learning
(1)
refusal ratio
(1)
attention mechanism
(1)
Papers
SSHPool: The Separated Subgraph-based Hierarchical Pooling
AAAI 2026
Please refuse to answer me! Mitigating Over-Refusal in Large Language Models via Adaptive Contrastive Decoding
ACL 2026
DHAKR: Learning Deep Hierarchical Attention-Based Kernelized Representations for Graph Classification
AAAI 2025
MidPO: Dual Preference Optimization for Safety and Helpfulness in Large Language Models via a Mixture of Experts Framework
EMNLP 2025
ENAHPool: The Edge-Node Attention-based Hierarchical Pooling for Graph Neural Networks
ICML 2025
DHTAGK: Deep Hierarchical Transitive-Aligned Graph Kernels for Graph Classification
IJCAI 2025