Lei Sang
4 papers · 2025–2026 · 3 conferences · across top CS/AI conferences
Achievements
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🌍
Conference Polyglot
(2)
🌉
Interdisciplinary Bridge
🐝
Cross-Pollinator
(15)
Conferences
AAAI (2)
ACL (1)
EMNLP (1)
Top co-authors
Keywords
representation learning
(2)
contrastive learning
(1)
matrix factorization
(1)
collaborative filtering
(1)
in-context learning
(1)
hierarchical representation
(1)
user-item embedding
(1)
mixture of expert
(1)
prompt injection
(1)
user-item interaction
(1)
causal relationship
(1)
event causality identification
(1)
parameter efficient fine tuning
(1)
semantic abstraction
(1)
data sparsity
(1)
low rank adaptation
(1)
large language model
(1)
graph neural network
(1)
positive sampling
(1)
expert communication
(1)
Papers
CAFU: Constrained Alignment and Filtered Uniformity for Denoising Recommendation
AAAI 2026
Revisiting Contrastive Learning in Collaborative Filtering via Parallel Graph Filters
AAAI 2026
TalkLoRA: Communication-Aware Mixture of Low-Rank Adaptation for Large Language Models
ACL 2026
DICP: Deep In-Context Prompt for Event Causality Identification
EMNLP 2025