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Ren Chen

3 accepted papers

2026

DAG-MoE: From Simple Mixture to Structural Aggregation in Mixture-of-Experts

ICML 2026poster

Mixture-of-Experts (MoE) models have become a leading approach for decoupling parameter count from computational cost in large language models. Despite significant progress, effectively scaling MoE performance remains a challenge. Previous work shows that the use of fine-grained experts enlarges the…

Cited by 0SourceScholar
2024

LLM-Rec: Personalized Recommendation via Prompting Large Language Models

NAACL 2024findings

Text-based recommendation holds a wide range of practical applications due to its versatility, as textual descriptions can represent nearly any type of item. However, directly employing the original item descriptions may not yield optimal recommendation performance due to the lack of comprehensive i…

2021

Decoupling the Depth and Scope of Graph Neural Networks

NeurIPS 2021poster

State-of-the-art Graph Neural Networks (GNNs) have limited scalability with respect to the graph and model sizes. On large graphs, increasing the model depth often means exponential expansion of the scope (i.e., receptive field). Beyond just a few layers, two fundamental challenges emerge: 1. degra…